Ceweprometer User Manual (cewe) Bgx501-856-r02

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CewePrometer

User Manual
BGX501-856-R02

Copyright © 2013, SIHPL
Other product names are trademarks or registered trademarks of their respective owners.
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BGX501-856-R02, CewePrometer User Manual

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Table of Contents
1

Introduction ................................................................................................................................. 5

1.1

About this user manual.............................................................................................................................5

1.2

Contacting us ...........................................................................................................................................5

2

Product Description .................................................................................................................... 6

2.1

Sealing of CewePrometer-W ....................................................................................................................8

2.2

Sealing of CewePrometer-R .....................................................................................................................9

2.3

Connections .............................................................................................................................................9

2.4

Mechanical design ................................................................................................................................. 12

2.5

Function modules................................................................................................................................... 15

2.6

Measuring principles .............................................................................................................................. 15

3

Configuration, Reading and Maintenance ............................................................................... 16

3.1

Connecting to CewePrometer................................................................................................................. 16

3.2

Basic configuration................................................................................................................................. 18

3.3

Overview of functions ............................................................................................................................. 19

3.4

Changing configuration .......................................................................................................................... 20

3.5

Working with configurations.................................................................................................................... 21

3.6

Reading ................................................................................................................................................. 22

3.7

Information about the meter ................................................................................................................... 23

3.8

Versions and version conflicts ................................................................................................................ 23

3.9

Updating firmware .................................................................................................................................. 23

3.10 Language ............................................................................................................................................... 24
3.11 Resetting registers and logs ................................................................................................................... 24

4

Functions ................................................................................................................................... 25

4.1

Meter clock ............................................................................................................................................ 25

4.2

Energy registers ..................................................................................................................................... 26

4.3

Instant values......................................................................................................................................... 27

4.4

Digital inputs and outputs ....................................................................................................................... 29

4.5

Display sequences ................................................................................................................................. 32

4.6

Communications and security................................................................................................................. 32

4.7

Loggers ................................................................................................................................................. 34

4.8

Alarms ................................................................................................................................................... 36

4.9

Event log................................................................................................................................................ 38

4.10 Configuration log .................................................................................................................................... 38
4.11 Maximum demand ................................................................................................................................. 38
4.12 Historical registers ................................................................................................................................. 40
4.13 Time of use ............................................................................................................................................ 41
4.14 Transformer compensation..................................................................................................................... 42
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4.15 Power quality ......................................................................................................................................... 43
4.16 Miscellaneous ........................................................................................................................................ 44

5

Using the Display ...................................................................................................................... 46

5.1

Voltage order display layout ................................................................................................................... 46

5.2

Navigating in display sequences ............................................................................................................ 47

5.3

Display layouts with choices ................................................................................................................... 47

5.4

Using the display for communication diagnostics .................................................................................... 49

Appendix A - Display Layouts ........................................................................................................ 50
Appendix B - Events and Configuration Log ................................................................................ 58
Appendix C - Communication Ports .............................................................................................. 61
Appendix D – Module Block Diagram ............................................................................................ 66
Appendix E – Frequently Asked Questions .................................................................................. 67
Appendix F – Calculation Principles ............................................................................................. 69
Appendix G – Material Declaration ................................................................................................ 74
Appendix H – Connection and General Details ............................................................................. 75
Appendix I – Approvals and Certificates ....................................................................................... 77
Appendix J – Cewe Config settings ............................................................................................... 78
Notes ................................................................................................................................................ 79

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The CewePrometer is a multi-functional. The CewePrometer is complemented with CeweConfig. It provides very high accuracy in measuring electrical energy and also in measuring instantaneous quantities such as current. frequency etc.se E-mail order and product information [email protected] Internet www. CewePrometers extensive configurable functional features together with the high accuracy enable application areas more numerous than for traditional electric meters.1 Introduction Thank you for choosing the CewePrometer. please contact Cewe Instrument. there are also extensive functions for monitoring alarm conditions. data logging and tariff capability. The manual covers all versions of the CewePrometer-R (rack-mounted) and CewePrometerW (wall-mounted). manual reading and maintenance. measuring sags and swells and other power quality quantities. 1. CewePrometer User Manual Page 5 of 80 .2 Contacting us For more information and technical support. voltage.se E-mail technical support [email protected] a PC program for configuring. power. Some of the described functional properties can be missing in certain meter versions.1 About this user manual This user manual describes the CewePrometer’s functions and provides the information needed to configure and use the meter. electronic.se Telephone +46 (0)155 77500 Address Cewe Instrument AB Box 1006 SE-611 29 Nyköping Sweden Public BGX501-856-R02. Besides having well-designed traditional features such as meter registers. 1. harmonics. electricity energy meter.

2 Product Description 15 1 14 13 12 2 11 10 3 9 4 8 5 7 6 Figure 1: CewePrometer-W 10 15 14 1 13 12 2 3 4 5 8 11 16 Figure 2: CewePrometer-R Page 6 of 80 BGX501-856-R02. CewePrometer User Manual Public .

phase balance or similar external errors. 7 Terminal cover 8 Sealing points for front panel window The front panel exterior window can be sealed with lead seals (or comparable seals) and sealing wire through the sealing points. Holding down the button for about two seconds opens a system menu. 12 Sealed button The button is hidden under the front panel window and provides access to a fifth configurable display sequence. 4 Calibration LED for active energy The LED is the source of the energy signal for accuracy testing of active energy. 13 Step backward The button is used to step backward to a previous display layout in the selected display sequence. 6 Sealing points for terminal cover The terminal cover can be sealed with lead seals (or comparable seals) and sealing wire through the sealing points. The light pulses have a 50% pulse width and a frequency proportional to the measured active power. the window is provided with a pocket for inserting an extra label. the LED stops flashing when the alarm state has passed. The extra label can be used when transformer ratios are changed. The same constant applies to active and reactive energy. The same constant applies to active and reactive energy. 9 Meter cover 10 Front panel window The front panel window has hooks for attaching the meter label. For alarms. the alarm must be acknowledged and manually reset. such as for high or low voltage. 11 Calibration LED for reactive energy The LED is the source of the energy signal for accuracy testing of reactive energy.1 Display 2 Optical communication port The optical port communicates in accordance with IEC62056-21/IEC1107. or to step downwards in a menu. 5 Auxiliary power LED When the CewePrometer is receiving auxiliary power. The seal prevents access to the fourth button (sealed button) and the optional backup battery for the real-time clock. In addition. The button confirms choices made or initiates other activities depending on the current display layout. 3 Alarm LED The alarm LED flashes when an alarm state has occurred. The light pulses have a 50% pulse width and a frequency proportional to the measured reactive power. If the meter has had an internal error. 14 Menu/Apply The Menu/Apply button is used to open the menu where one of four configurable display sequences can be chosen. the green LED turns on to indicate that the meter's power supply is working. A constant that specifies the total number of pulses per kvarh can be configured. CewePrometer User Manual Page 7 of 80 . Public BGX501-856-R02. A constant that specifies the total number of pulses per kWh can be configured.

15 Step forward The button is used to step forward to the following display layout in the selected display sequence. Page 8 of 80 BGX501-856-R02. The seal prevents access to the fourth sealed button and the optional backup battery for the real-time clock. CewePrometer User Manual Public . The front panel window can be sealed with lead seals (or comparable seals) and sealing wire through the sealing points. 16 Sealing points for rack mounting The rack mounting bracket for the CewePrometer-R can be sealed with lead seals (or comparable seals) and sealing wire through the sealing points. The terminal cover can be sealed with lead seals (or comparable seals) and sealing wire through the sealing points.1 Sealing of CewePrometer-W See Figure 1: CewePrometer-W for location of the sealing points. Sealing point Figure 4: The meter cover can be sealed at the sealing rings on both sides under the terminal cover. Battery cover Sealed button Figure 3: Under the front panel window is a fourth button and backup battery for the real-time clock. The meter cover can be sealed with lead seals (or comparable seals) and sealing wire through the two sealing points under the terminal cover. or to step upwards in a menu. 2.

CewePrometer User Manual Page 9 of 80 . if any. Connections to the CewePrometer-R are made on the rear panel of the meter subrack. The top and bottom covers are normally each sealed with a lead seal and with sealing wire through a sealing screw and a fixed hole on the cover at the rear of the meter. Digital outputs Digital inputs Output #8 Output #1 I'L1 UL1 IL1 I'L2 UL2 IL2 I'L3 UL3 Input #1 IL3 Input #4 N Separate aux. The enclosure permits the meter to be sealed at three points. measuring currents. Battery Sealed button Under the front panel window is a fourth button and backup battery for the real-time clock.3 Connections Connections to the CewePrometer-W are made on the meter terminal under the terminal cover. The exterior window on the meter front can be sealed on a sealing point with a lead seal and sealing wire.2 Sealing of CewePrometer-R See Figure 2: CewePrometer-R for location of sealing points. 2. relay outputs. the meter can be sealed so that it cannot be opened without breaking all the seals. optically isolated digital inputs. power (Uaux) Connections for CewePrometer-W Public BGX501-856-R02. separate auxiliary power and connections to communication modules. The connections are: measuring voltages. In this way.2. One of the buttons on the front is protected from access behind the sealed exterior window.

B9 C3. D7 IN1 IN2 IN3 IN4 2. permitting the meter to be withdrawn and inserted into the subrack during operation. C9 C3. D7 D3. Auxiliary power can be self powered (internal). C7 D0. B8 B4. D6 D2. 2. D9 B7. C5 C1. 0 inputs OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7 OUT8 OUT9 OUT10 OUT11 OUT12 C4. The meter is connected via the contact pins after insertion. C5 C1.2 Auxiliary power The CewePrometer is supplied with separate auxiliary power. 2 inputs OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7 OUT8 OUT9 OUT10 B1 B2 B3 B0 Current. C6 C2. C5 C1. C8 C4. Auxiliary power can be supplied both with alternating current and polarity-independent direct current within a specified range. C9 Connector for CewePrometer-R A standardised Entrelec Essailec plug-in connector is used.Connections Digital I/O variants 6 outputs. D8 D4. D9 B7.3 Digital outputs The CewePrometer's outputs are solid-state MOS-FET bipolar semiconductor relays. B8 B4. C6 C2. C7 D0. The cable connection is made in the subrack. voltage and auxiliary power connections for CewePrometer-R. with normally open contact function. D6 D2. Connections for CewePrometer-R OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 UL1 UL2 UL3 N C4. D5 D1. C9 C3.3.1 C0. D9 D3. B9 IN1 IN2 Uaux1 Uaux2 B5 B6 I1 in I1 out I2 in I2 out I3 in I3 out A01 A1 A02 A2 A03 A3 12 outputs. D6 D2. CewePrometer User Manual Public . D8 10 outputs. of the same type as for other meters according to standard DIN 43862.3. Page 10 of 80 BGX501-856-R02. CewePrometer-R can also be configured with dual auxiliary. D5 D1.3. 2. D8 D4. D7 D3. 4 inputs C0. C8 D4. Internal current limit protects the relay from being damaged by excessively high current. C8 C0. The connector has a short-circuit protection feature for electrical circuits. D5 D1. C7 D0. C6 C2.

The Ethernet communication port is used to connect to the meter over TCP/IP based network. where the LED is powered from an external voltage signal through series resistance to limit the current.61). The RS422 port can also be used for single twisted-pair RS485 bus.5 Communication ports {Ethernet (IP). RS422 can also be used as RS485) Communications through the infrared IEC62056-21/IEC1107 optical port are transferred via an optical read/write adapter. see Appendix C .3. an optical head.3. or the transmitter must deliver an active voltage signal to send pulses that are detected by the optical input. Numbering of the communication ports on the CewePrometer-R. The RS232 standard communication port is used to connect communication equipment (computers. The optical head is positioned and secured over the optical port by a magnet on the head and a steel plate around the opening of the optical port. modems) through a serial cable with a standard D-sub. For information on pin configuration. 9-pin connector. CewePrometer User Manual Page 11 of 80 . The optically isolated inputs are unaffected by reverse polarity. RS422. RS485)} The CewePrometer is equipped with one optical port and up to two additional communication ports. Public BGX501-856-R02. Note that 2 communication ports is the default configuration on a rack meter. Both DC and 50/60 Hz AC can be used. This means that an external voltage must be connected between the passive pulse and level transmitter and the opto coupler's LED. Numbering of the communication ports from right to left on the CewePrometer-W. The RS422 serial communication port is intended to be used to connect the CewePrometer to a network for multi-drop communications. Ethernet or serial (RS232 or RS422. Serial (RS232. 2.Communication Ports (pg.4 Digital inputs The optically isolated digital inputs consist of opto couplers. The CewePrometer is connected to the communication equipment (RS422 converter) with two twisted-pair wires connected to a 5-pole connector.2.

4 Mechanical design Alternative mounting Dimensions for CewePrometer-W Page 12 of 80 BGX501-856-R02. CewePrometer User Manual Public .2.

CewePrometer User Manual Page 13 of 80 .Dimensions for CewePrometer-R Public BGX501-856-R02.

The communication ports are also isolated but for a lower voltage. The meter is not connected with protective earth. meter cover. Digital I/O connections are isolated with opto couplers and solid state relays.Dimensions for CewePrometer-R subrack The subrack is also available in alternative connector versions that will fit other brands of meters with the same type of connector.2 Isolation and personal safety The electronic circuits are isolated from all connections to the supply mains with transformers. terminal cover and a plastic exterior window. CewePrometer-R Enclosure fits for installation of two meters in a 19" subrack in compliance with DIN438862. Page 14 of 80 BGX501-856-R02. CewePrometer User Manual Public . The meter is designed for protective earthing through the 19" subrack.4. Contact Cewe Instrument for more information.4. There is also an optional 19 inch rack/panel mounting kit available for to CewPrometer-W to be mounted side by side. 2.1 Enclosure and protective earth CewePrometer-W The enclosure consists of a meter base. 2. The enclosure consists of a box made of surface-finished steel sheet and a front with a plastic window.

Power and energy are calculated from three phase voltages and three currents. the meter is normally equipped with the following modules for additional functionality: Digital I/O module Communication module There is also space for additional function modules for expansion of function properties to meet future market needs. power. This means that accuracy for instant values is good and that active and reactive power are correctly calculated.6. 2. Adjustments for accuracy are made throughout the dynamic range for both voltage and current. Current and voltage amplitudes and phase angles are fully compensated in regards to accuracy. For more information. Harmonic measurement. For more information on calculation principles and the formulas used. harmonics. Power and energy are calculated based on two line to line voltages (U12 and U23) and two currents (I1 and I3) according to the 2watt meter method. Public BGX501-856-R02. energy. Harmonic measurement.6. power factor and all other quantities that the CewePrometer can present.2 Modules The CewePrometer consists of the following basic modules. Based on these individually compensated current and voltage signals.5. The line to line voltage is calculated from the phase voltages. are subsequently calculated. Using voltage transformers makes the electronics in the meter galvanically isolated from the measurement voltage. 2.5 2.1 Calculation flow All values are calculated in the CewePrometer based on calibrated current and voltage values.5. The voltages measured are subsequently line to line voltages.2. such as modems. phase voltages and neutral wires are connected to the meter. the neutral conductor is not connected to the meter and the three voltages are internally D-connected. Modulisation is not primarily intended for being able to switch plug-in modules in the field – the meter must be opened and the seals broken to switch modules. Modulisation is primarily used to make it easy to produce different versions with the same basic design.2 3-element meter On the 3-element CewePrometer. see Appendix D – Module Block Diagram (pg.6.6 Measuring principles The measuring circuit in CewePrometer consists of current and voltage transformers that provide signals to six parallel AD converters (analogue to digital converters) that are synchronised by a common clock signal. CewePrometer User Manual Page 15 of 80 . The digital signals are thereafter processed by a DSP.66). frequency and temperature. 2. alarm monitoring and transformer corrections are made on line to line voltages. and to enable development of new modules for the basic design to add or replace functions.3 2-element meter On the 2-element CewePrometer. 2. 69).1 Function modules Modulisation The CewePrometer is made up of function modules. which are necessary for a functioning meter in its simplest version: Measurement module Power module Display and register module Moreover. 2. The 2-element meter is primarily used for D-connected systems (3-wire). which provides good personal safety and protection for connected equipment. The voltages measured are phase voltages. see Appendix F – Calculation Principles (pg. alarm monitoring and transformer corrections are made on phase voltages. including harmonic power.

CewePrometer User Manual Public . logging interval and limits for alarms. logged values. transformer ratios. rate and MD registers. Reading and Maintenance CeweConfig is a PC program that makes all CewePrometer functions available.3 Configuration. Menu Structure tree 3. Maintenance Examples of maintenance tasks are: resetting the event log and updating the firmware in the meter. no password is configured. See the section Communications and security (pg.1 Toolbar Status bar Configuration form Connecting to CewePrometer To be able to configure or read values in the CewePrometer. CeweConfig must be connected and have authorisation to access the meter. With the meter's usual factory settings. With CeweConfig. The meter has five different authorisation levels that can be configured with passwords. To communicate with a meter. Reading Examples of information that can be read are: registers. The information can be printed out or saved to a file. 32). you can: Configure Configuring means that parameters affecting meter function or parameters configuration as per customer metering application can be set. Examples of parameters that can be configured are: energy. the PC must be physically connected to the CewePrometer in one of the following ways: PC – Optical head – Meter PC – Crossed serial cable (null modem) – Meter PC – Straight serial cable – RS422 converter – Daisy chained meters PC – straight serial cable – RS485 converter – Daisy chained Meters Page 16 of 80 BGX501-856-R02. alarms and harmonics. and subsequently no password is necessary when you connect.

Note: The selectable communication ports can be changed by changing the XML file Settings. and defines for how long the converted data is kept in transmit mode after last character has been sent on the communication port. Serial Port (RS232/RS422). 7. With the meter's factory settings. Time may vary depending on PC performance and baud rate. Click the Common tab and enter the telephone number to be called. 2. Password Click the Common tab. 5. For meters with factory settings. Trace to file Public BGX501-856-R02. Modem If a modem connection is used. Communication channel Click the Settings tab and choose either. 4. an RTS off delay may have to be defined. Optical Port. CeweConfig adapts itself to the baud rate the meter is configured for. 3. and subsequently no password is necessary when you connect. no password is configured. the baud rate must be selected. CewePrometer User Manual Page 17 of 80 . a modem must be chosen. A password is entered if one is configured in the meter. the baud rate is 9600. The time is given in milliseconds. Connect to Meter Choose Connect to Meter from the File menu or by clicking the toolbar button.PC – Modem – Modem – Meter PC – Ethernet (straight) – Meter How to connect to the meter 1. Serial number Serial number is only required if a special meter is to be addressed when several meters are connected together with RS422. Typical time is 20 ms for 9600 baud.xml that is in CeweConfig's installation directory. If the serial port or a modem is used. 6. When the optical port is used. The modems available are those installed in Windows. making selection of the baud rate unnecessary. Serial Port (RS485) If a connection over RS485 uses a RS485 converter relying on the RTS signal for switching between transmit and receive. Serial Port (RS485) or Modem.

the Serial Port (RS232/RS422) option should be selected. All communications between CeweConfig and the meter are presented in the file.21). 8. the message can suggest corrective actions. For more information see the section Changing configuration (pg. 25). Note: For Ethernet communication. Page 18 of 80 BGX501-856-R02. 3. Meters supplied without backup batteries retain the time setting for a maximum of three days. Tip: You can save a configuration from a meter to a file.Under the Settings tab. you must be connected to it. 20). the clock may need to be adjusted. Depending on the reason.1. Note: Settings are only necessary if they have not been made at the factory prior to delivery. See the section Using the display for communication diagnostics (pg. 3.Clock in the structure tree. a box can be checked to activate tracing to a file. Meter clock: To configure the meter clock. Click the Configuration folder in the structure tree to the left in CeweConfig to display the various functions that can be configured. For more information. Tip: When communication problems occur. The function can be used to analyse communication problems. You can also create a configuration without being connected to a meter. A file named SerialTrace. A summary of the configuration can also be printed out. CewePrometer User Manual Public . To change the configuration for a meter.log is then created in CeweConfig's installation directory. Find out how the meter clock works and how it can be configured in the section Meter clock (pg.49).1 Problems with connecting If the meter cannot be connected. For timedependent functions such as logging and event logging to work. choose the node Meter – Configuration . an error message is displayed.2 Basic configuration Some basic settings may be required before the CewePrometer will be able to measure and operate correctly in a system. the trace feature on the meter's display can be used to see if that which has been sent has been registered by the meter. see Working with configurations (pg. Click the Connect button. such as changing the port or port baud rate.

CeweConfig can also export data to a file or print out data. choose the node Meter – Configuration – Measuring in the structure tree. All functions in the meter can be both configured and read in CeweConfig. Public Configuration location in CeweConfig Meter – Configuration – Communication Meter – Configuration – Communication Meter – Configuration – Loggers Section in handbook describing the function. Fill in the primary and secondary values for current and voltage. 34) BGX501-856-R02. voltage monitoring and transformer compensation. the ratios must be correct. choose the node Meter – Configuration – Digital I/O in the structure tree. Display sequences: To configure display sequences in CeweConfig. 3. Presentation format for energy registers: To configure the presentation format for energy registers. Pulse constants for pulse outputs (Digital I/O): To configure pulse constants for pulse outputs in CeweConfig. In many cases. CewePrometer User Manual Page 19 of 80 . Note 1: The values you choose as primary and secondary values will be considered as the nominal values. 32). Data logging Log energy or instant values. These nominal values are used by several functions in the meter: alarms. Based on the nominal values. To configure the transformer ratio in CeweConfig. Read about energy registers in the section Energy registers (pg. 32) Communications and security (pg.3 Overview of functions The following is a brief overview of the functions available in CewePrometer. 26). Any change to measuring configuration is logged in the configuration log (see section Configuration log). Passwords Regulate access to data in 5 levels with passwords or hardware strap. Communications and security (pg.Transformer ratios: For the meter to measure accurately. Function Communication speed Set the baud rate for the meter's optical or serial port. Click the General tab in the window that opens. choose the node Meter – Configuration – Measuring in the structure tree. Choose the prefix and number of decimals for energy registers. Find out how Digital I/O works and how it can be configured in the section Digital inputs and outputs (pg. Find out how display sequences work and how they can be configured in the section Display sequences (pg. 29). 32) Loggers (pg. a capacity is calculated for how long the meter can measure without registers resetting. choose the node Meter – Configuration – Display sequences in the structure tree.

41) Meter – Configuration – Measuring. 43) Meter – Configuration – Misc. Calibration LED Set a pulse constant for the calibration LED.6) Meter – Configuration – Digital I/O. 44) Meter – Configuration – Misc. Time of use Determine how rates shift over the course of a day and which registers will be divided by rates.Alarms Activate alarms for events such as voltage unbalance. Determine how alarms will be presented. Adjusting the clock for daylight saving time Set date and time for daylight saving time. swells and interrupts. 25) Digital inputs and outputs (pg. Transformer compensation Compensate errors and losses for instrument and power transformers. Miscellaneous (pg. Indicate alarms via pulse output Choose a pulse output to be activated in case of alarms. Synchronise clock via incoming pulse Set an interval that the clock shall be synchronised to upon incoming pulses. Outputs tab Digital inputs and outputs (pg. 38) Meter – Configuration – Historical Registers Historical registers (pg. General tab Product Description (pg. Information texts Enter information texts that can be read on the display and via communications. 25) Changing configuration Page 20 of 80 BGX501-856-R02. 29) Meter – Configuration – Clock Meter clock (pg. Maximum demand Determine values that are to be stored as maximum average values.4 Meter – Configuration – Alarm Alarms (pg. 44) Meter – Configuration – Measuring. 29) Meter – Configuration – Clock Meter – Configuration – Digital I/O. Accumulate incoming pulses Configure registers to accumulate pulses representing a selectable quantity. Language on display Choose between several available languages for the display. Inputs tab Digital inputs and outputs (pg. This is used to test meter accuracy. 36) Meter – Configuration – Maximum Demand Maximum demand (pg. Inputs tab Meter clock (pg. 3. CewePrometer User Manual Public . 29) Meter – Configuration – Digital I/O. Power Quality tab Power quality (pg. Transformer Compensation tab Transformer compensation (pg. 40) Meter – Configuration – Time of use Time of use (pg. Historical registers Choose how a historical period will be finished. Power quality Activate monitoring of voltage sags. Miscellaneous (pg. 42) Meter – Configuration – Measuring.

You can select some parameters which will not be updated. transformer ratio. Transformer corrections or passwords are not saved in configuration files. The changes in configuration cause a dialog to open.or 3-element meter. In the lower right corner. there is a command for creating a configuration summary.To open a configuration form. CewePrometer User Manual Page 21 of 80 . Below is a list of how you can use CeweConfig's functions to work with configurations. e. The dialog shows all parameters that can be updated in the meter. there is an Apply button. 3. You can choose not to send a portion of the configuration by clearing checkboxes in the dialog. Warning dialog displayed sometimes when configurations are sent to the meter. The configuration file can be either of the 2. On CeweConfig's File menu. that might be specific for each meter. changes to the configuration will be immediately transferred to the meter. If a meter is connected and you click Apply. On the File menu. Measuring. Clock. you can work with configurations as a collection of CewePrometer's settings and save them in a file. A configuration can either be for a 2. Saving a meter's configuration to a file Choose Save configuration when CeweConfig is connected to a meter to save the meter's configuration to a file. You cannot transfer a 2-element configuration to a 3-element meter or vice versa.or 3-element type. If the changes affect registers or measurement. The configuration file can later be used as a backup or be transferred to another meter. Configuration changes can be made in all configuration form. are the commands Save configuration.g. The file's configuration can later be transferred to a meter. Open configuration and New configuration. Transferring a configuration file to a meter Choose Open configuration when CeweConfig is connected to a meter to transfer a configuration file to the meter. a warning dialog will be displayed. click the folder Configuration in the structure tree and then click one of the nodes: Display Sequences. etc.5 Working with configurations In CeweConfig. If you want an exact copy. Creating a configuration file without being connected to a meter Choose New configuration when CeweConfig is not connected to create a configuration file offline. Make all settings that are to be included in the configuration file and save the file. all parameters must be selected Public BGX501-856-R02.

Read values can be printed out and often also saved to files. Now choose Print. 3. Printing out a summary of a configuration file Open a configuration file and choose View – Configuration summary to create a summary of the configuration that is in the file.Printing out a summary of a meter's configuration Choose View configuration – Configuration summary when CeweConfig is connected to a meter to create a summary of the meter's entire configuration. Now choose Print.6 Reading If you are connected to a CewePrometer with an authorisation level between 1 and 5. this can be done with the help of Print and Save buttons. displayed values are constantly updated. The others are only updated when the window is opened or when the Update button is clicked. several alternatives will be available in the structure tree under the node Reading. Note: Choosing New configuration or Open configuration when CeweConfig is connected to a meter opens a warning dialog box with the message that the configuration in the meter will be written over if you continue. Page 22 of 80 BGX501-856-R02. For the alternatives Instant Values and Time. CewePrometer User Manual Public .

The version number for CeweConfig is displayed on the application's title bar or under About on the Help menu. Additionally. See the section Updating firmware (pg. 23). Under the Modules heading.9 Updating firmware CewePrometer is designed with a number of modules that each have their own processors and their own firmware. Some of the information displayed is the same as what appears on the meter plate.8 Versions and version conflicts The latest version of CeweConfig can be used with all firmware versions of CewePrometer-R/W. CeweConfig will display a message that connection is not possible. If the meter is of a newer version than CeweConfig and the main version and/or sub-version are different. CeweConfig and the meter are compatible. the firmware currently used in the meter is listed.7 Information about the meter Information about the connected meter can be obtained by choosing View – Information about the meter. There is otherwise the risk that CeweConfig will no longer be version-compliant after firmware updating. Note: Be sure to update CeweConfig to the latest version before updating the meter.3.build number. The module firmware is distributed in a package file (. CeweConfig must be updated.subversion. CewePrometer User Manual Page 23 of 80 . The version number for the meter's firmware can be viewed under View information about the meter on the View menu. 3. As long as the main version and sub-version are the same. 3.pkg) which is transferred to the meter using CeweConfig. there is information on when the meter was manufactured and when the most recent configuration change was made. Public BGX501-856-R02. Newly developed and improved functions can thus be added in a meter that lacked these functions when delivered. CewePrometer and CeweConfig have three-digit version numbers according to the format main version.

the time for updating can vary from a few minutes to a half hour at the highest baud rate. connect at the highest baud rate (19200 bps) to speed updating. The available languages can be seen under Language on the View menu. If an update via a modem has failed. 3. Click the Advanced button to view CeweConfig's version number by module for both the file and the meter. there is an Update firmware command when the meter is connected with authorisation level 4 or higher.0. 3. To reset energy registers. You will find a number of choices under Reset on the Tools menu. Page 24 of 80 BGX501-856-R02.1.1. the next update must be made via RS232/422 or the optical head.0. The file name and version number will then be displayed. 3. and level 3 for other options.10 Language CeweConfig can be set to different languages. and sometimes a message. During the time the update is being installed.0. Updating can be performed via a modem but this should be avoided since reliability for this method of communication is too low. Depending on the size of the file to be transferred and the baud rate. A warning dialog box opens before resetting. After updating. authorisation level 5 is required.On the Tools menu. Example: It is not possible to update from 2. you can force modules to be updated even if the file has the same version number. Some options may be marked in grey if your authorisation level is not high enough. If possible. CewePrometer User Manual Public .1 Restrictions Firmware updates can only be made to a firmware version with the same major version number as the firmware present in the meter.11 Resetting registers and logs CewePrometer's various registers and log data can be reset with CeweConfig if a meter is connected and you are connected with a sufficiently high authorisation level.1 to 2. An interrupted update can leave a meter with incomplete firmware that cannot measure at all. It is possible to update from 2.0 to 3.0. Additionally. Begin by choosing the file that contains the update. the meter stops measuring and registering energy.9. the meter is restarted to complete installation of the meter's new firmware. Click Update to begin updating.

4. see Appendix B .34). 02:00. At a specified date. adjusted backward. The battery monitoring function estimates the time left of the battery. The following is set in the meters: Begin March. the meter clock is adjusted forward. End October. 4.Events and Configuration Log (pg.1. 20 and 30 minutes 1 hour Times 12:00 and 00:00 Time 00:00 Besides specifying that the meter clock will synchronise via external pulses. 4. instantaneous adjustment of the meter clock is primarily intended for use at initial configuration of the meter. At installation of a battery the monitoring function must be restarted via CeweConfig. the meter's log memory is reset when doing instantaneous adjustment. With 40%-adjustment.1 Battery monitoring The battery is used to backup the real time clock. 31. Example: On 28 March the clock is to be adjusted forward. If the time had instead been 13:31. To avoid this.1. the clock is adjusted to the closest multiple of a specified synchronisation interval. see Loggers (pg.4 Functions 4. a digital input must also be configured for clock synchronisation.1 Meter clock The CewePrometer has an integrated real-time clock for time-dependent functions.1.1 Instantaneous adjustment The meter’s date and time can be set to an absolute point in time. The adjustment back to standard time is to occur on 31 October at 3:00 (daylight savings time) when the clock is to be set back to 02:00. If the synchronisation interval is. 4. 4. for example. 29). Instead of the meter adjusting the clock instantaneously.4. from 02:00 to 03:00.2 Sliding adjustment The meter’s time can be adjusted successively.1.1. 28. Public BGX501-856-R02.58).4 External synchronisation The meter time can be adjusted by a pulse on one of the meter’s digital inputs. 03:00 and the standard time is to be adjusted by 60 minutes. CewePrometer can store ten (10) years of DST configuration. CewePrometer User Manual Page 25 of 80 . 15. Synchronisation is made by sliding the time 30% (18s per minute). and at another. For this reason. Information about time adjustment and daylight saving time status is recorded with tags on the logged values.3 Daylight saving time CewePrometer offers the alternative of letting the meter clock follow daylight savings time. A speed of adjustment can be chosen in the 1–40% range. Time adjustments are also noted as an event in the event log. Instantaneous adjustment of the meter’s time can influence logged values. one hour and the time is 13:29. When a pulse is registered. the total adjustment is spread out over a longer period. the clock would have been adjusted to 14:00. Available synchronisation intervals are: 10. the clock is adjusted 24 seconds for each minute until the total adjustment has been made. see the section Digital inputs and outputs (pg. a pulse will adjust the clock to 13:00.

2 Energy registers Energy registers in the CewePrometer are electronic counters that accumulate energy. export Yes Reactive energy Import. When an energy register has reached its maximum figure (for example.4. Read more about how energy is calculated and defined by quadrants in Appendix F – Calculation Principles (pg. 999999. 4.69).999 kWh). Energy type Energy direction Total values Active energy Import. Prefixes and number of decimals are configured which apply to all energy registers. Page 26 of 80 BGX501-856-R02. inductive Import. Loss of auxiliary voltage therefore results in no more than one second of lost historical energy measurement data. Fewer decimals and larger prefixes give the energy registers space for more energy without resetting. For optimal safekeeping. capacitive. quadrants I-IV. export. it resets to zero. CewePrometer User Manual Public .2.2.2 Storage in non-volatile memory All registers are saved in non-volatile memory once per second. all registers are saved in three alternating memory areas. Energy registers have a width of nine digits.1 Overview The table shows the energy registers available in the meter. export Apparent energy Active power export (-) Reactive power import (+) II Total number Yes Per phase values Yes (3-element meter only) No Yes No 2 8 8 Active power import (+) I S Capacitive Q P Inductive Reactive power export (-) III IV Quadrants I II Phase angle 0 to 90 90 to 180 Current relative to voltage Lagging Leading III IV -180 to -90 -90 to 0 Lagging Leading 4. regardless of the total number of decimals and the prefix configured.

As per above picture. Logger 2 time interval will only affect the IP of delta energy values.3 Delta values on meter Display Delta values can be seen under logger channels display. Default time period of logger is 1 minute which is also the default IP of all delta energy values. 20. 34). only when selected in any of logger channel.)2 Yes (line to line volt.3 Instant values Besides energy. see section Loggers (pg.) Available on 2-element meter Yes Yes No Yes No Yes No Yes No Yes No Yes (line to line volt. 3. 4.4. The formulas and definitions used to calculate the values are presented in Appendix F – Calculation Principles (pg.2.3.4 Integration period (IP) of Delta values Integration period of delta values can be set by the time period of logger 2 using CeweConfig tool. 5. L31 Phase voltage THD voltage Amplitude voltage harmonics (2–31)4 Phase symmetry voltage Public Available on 3-element meter Yes Yes Yes Yes Yes Yes Yes Yes Yes 1 Yes (calculated) Yes Yes (phase volt.)2 Yes (line to line volt. Instant values are constantly changing values such as current.1 Overview This table provides an overview of the instant values that can be read on the meter. the CewePrometer can also measure instant values. Instant value Frequency Power factor total Power factor per phase Active power total Active power per phase Reactive power total Reactive power per phase Apparent power total Apparent power per phase Line to line voltage L12. Readings can be viewed with CeweConfig. 4. time interval of logger can be set to 1.) Yes (phase volt. 2.2. voltage. L23.) Yes (phase volt. on the display and with other software that has implemented CewePrometer’s communication protocol. Most instant values can be logged. 15.69). it will not log them unless the values are selected as logger channel in any of the logger. 4. power and harmonics. for more information. 10. CewePrometer User Manual Page 27 of 80 . 4. 30 or 60 minutes.) BGX501-856-R02.

4 The value can be read in CeweConfig and via the communication protocol but cannot currently be presented on the display (meter firmware 1.3.Umax 5 % of Imax . harmonics Current amplitude.3 Accuracy The table shows typical accuracy for a CewePrometer with accuracy class 0. L2.05% of Un >=3% of In 5% of reading <3% of In– 0.Umax 0. 2 The harmonics for voltage on the 2-element meter are to be seen from the standpoint of the voltages being Dconnected internally.15% of In Umin .05 % of Imax 0. Page 28 of 80 BGX501-856-R02. L2.3. With a 50 Hz measuring voltage. L3) Yes (L1.2 for a selection of instant values. L3) Yes Yes Yes Yes 3 Yes (L1. updating occurs 12. harmonics Current amplitude.Imax >=1% of Un Voltage amplitude.Imax 1–5% of Imax 47–63 Hz 1 % of Imax . L2.02 % of reading Corresponds to meter’s class according to energy measurement standard 0.1% of reading 0. Instant value Voltage amplitude Current amplitude Current amplitude Frequency Power Range Umin . harmonics Voltage unbalance 1 Accuracy better than: 0. CewePrometer User Manual Public .5 times per second. L3) Yes (L1.Imax Power factor At PF=0. 15 times per second.0). L3) Yes (L1.5 % Calculated from the voltage’s fundamental vectors. harmonics Voltage amplitude.1 % of reading 0.2 Yes (L1. 3 Current L2 is calculated internally in the 2-element meter for monitoring.2. and at 60 Hz.Current THD current Amplitude current harmonics (2–31)4 Phase symmetry current Phase angle total Phase angle per phase Voltage unbalance 4.1 % of reading 5% of reading <1% of Un 0. L3) 4 Yes Yes No Yes Update frequency The update frequency for instant values is proportional to the frequency of the measuring voltage. Instant values can be read up to twice per second via the serial port when it is set to 19200 baud. 4.5 and current 5% of Imax . L3) Yes (L1.

the registers can be configured with descriptive texts.4. the meter’s clock is synchronised at a specific interval For available synchronisation intervals and more detailed information on time synchronisation. At a fundamental frequency of 50 Hz. By setting limits for maximum and minimum pulse lengths. such as energy meters or water meters. Incoming pulses are accumulated in registers called external registers.1 Registration of pulses The meter registers pulses on positive or negative flanks.3. Pulse input To register pulses from pulse-producing units. etc. How the digital input levels are mapped to rates is defined in the Time of use panel (pg.3.5 Harmonics measurement Harmonics numbers 2 to 31 are measured for all currents and voltages. Time synchronisation When incoming pulses are received. The maximum pulse width that the meter can handle is 60 s.4. For external registers.75). In CeweConfig. The harmonics measured are the vector sums of the phases’ harmonics.7 Harmonics on 2-element meter The harmonics measurements of voltage on the 2-element meters should be seen from the standpoint of the voltages being D-connected internally in the meter.4. 4. a factor is configured by which the number of incoming pulses is multiplied. Rate input Up to three digital inputs can be configured to control the active rate. Both inputs and outputs are protected against over voltages by varistors.1. There is an external register connected to each input on the meter.3. it is also necessary that the historical registers be configured to allow this. and can be read via the meter’s communication protocols. the second harmonic is 100 Hz. For electrical data on the meter’s inputs and outputs. Each input will correspond to a bit and the significance is also defined for the digital input. 4.4 Digital inputs and outputs The CewePrometer has several inputs and outputs that can be configured to perform various tasks. 41). CewePrometer User Manual Page 29 of 80 .6 THD THD stands for Total Harmonics Distortion and is a measurement of the amount of harmonics present in a signal. pulse inputs are used. 4. For more information. A high level on the input will signify that the bit is “1” while a low level will signify “0”. the meter can be Public BGX501-856-R02.3. Voltages and currents’ THD can be read via CeweConfig and on the display. They also have an isolated interface between the electronics and the surroundings to ensure personal safety. For a pulse to finish historical period. 4. 4. see the section Historical registers (pg. the third harmonic is 150 Hz. Prefixes and the number of decimals can also be configured for the registers.4 Prefix for units in the display The presentation for units and the number of decimals depends on the magnitude of the value. see the section Meter clock (pg. 4. 40). Moreover. Both the harmonics’ amplitude and phase angle are measured and included in the calculation of power and energy. A pulse must be at least 16 ms long to be guaranteed of being detected by the meter. harmonic amplitudes are presented with a diagram. see Appendix H – Connection and General Details (pg.1 Inputs The inputs can be configured as follows: Not used The input is not used. depending on if the input is set to inverted or not. Finish historical period An incoming pulse will result in the present period ending and registers being copied to historical registers. 25).

A pulse constant is specified for the output as pulses/unit. Remote control With this function. there is a relationship between the pulse length and the specified pulse constant that maximises the pulse frequency to 1000/(pulse length(ms) * 2). See the section Maximum demand (pg. Pulse Gap Maximum pulse frequency at outputs limited so that the gap is at least as long as the pulse length. CewePrometer User Manual Public . In the section Alarms (pg. primary or secondary. and when the alarm state ceases. Pulse output The output is used to pulse an energy type that the meter is measuring.4. Alarm output When an output is set to functions as an alarm output. the output switches to active. This functions could be used control anything that can be controlled with a digital relay output.limited as to what it detects as a valid pulse. the output returns to inactive. In contrast to the other selectable functions for outputs. alarm outputs can be inverted. the output can be made active or inactive by sending commands to the meter via the IEC62056-21/IEC1107 protocol. regardless of it is inverted or not. Pulses are not allowed not come too often. one or more of the user-defined alarms can be chosen to indicate at the output.2 Outputs The outputs can be configured as follows: Not used The output is not used. the relay will open. Page 30 of 80 BGX501-856-R02. VCC GND Pulse length Pulse length (inverted input) The figure shows pulse lengths when an input is inverted or non-inverted. and the pulse length is specified for all pulse outputs. Pulses with lengths beyond the established limits are ignored. user-defined alarms are described and how they can be configured. End of MD period (maximum demand period) At the end of a set MD period. The occurrence of too long or too short pulses can also be configured to be recorded in the event log. 36). If the meter loses its auxiliary power. Note that outputs are inverted via firmware. 38). and because of this. respectively. 4. The shortest possible pulse length is 40ms. the output will go active for one second before returning to the inactive state. When an alarm occurs.

4.2.2.4.1 Output states An active output means a closed relay when the output is not inverted. The output can only be inverted when used as an alarm or pulse output The CewePrometer outputs are of the solid-state type and when the meter is turned off. CewePrometer User Manual Page 31 of 80 . 4.4. the active relay is open.2 Meter variants inputs/outputs CewePrometer-W CewePrometer-R 0/0 ● ● 0/12 ● 2/10 ● 4/6 ● 4/8 Public ● BGX501-856-R02. When the output is inverted. they are open.

The section Display sequences (pg. Passwords are not case-sensitive. display sequences 1 and 3 are configured for automatic display layout cycling. If. CewePrometer User Manual Public . the CewePrometer returns to the first display layout in display sequence 1 if automatic display layout cycling is not activated for any display sequence. The setting can only be changed at access level 5. The meter can be optionally equipped with one or two (three on the rack meter) additional communication ports with RS232. it is appropriate that display layouts with sensitive information and sensitive functions be placed in display sequence five. After the last layout in sequence 3. and then continue with sequence 3. for example.3 Automatic return to first display layout One minute after a user has stopped navigating in the display sequences. When a user chooses a password-protected display sequence via the meter’s buttons. Display sequence five is only accessible via the sealed button under the front panel window.6 Communications and security All CewePrometers are equipped with an optical port for communication. the meter will first cycle the display layouts in sequence 1 from the first to last layout. For this reason. A password can be up to six characters long and include the characters A-Z.4 Locked (required) display sequence The meter can be configured to not allow any changes of display sequence 4.<>[email protected] The display layouts cycle with a configurable delay of 1 to 30 seconds. 4. Menu for choosing one of the four display sequences. The front panel window can be sealed to provide additional security. Only a correctly entered password gives access to the display sequence and to the display layouts that are included in it. 4. a password entry field is displayed.Display Layouts (pg. password protection is deactivated. This setting (Block configuration of display sequence 4) is available in the Communication and Security form. The CewePrometer is equipped with a graphic display that can show the information available in the meter.5. and Appendix A .5. To organise the information. CewePrometer supports the IEC62056-21 (formerly IEC 1107) and on the additional ports Page 32 of 80 BGX501-856-R02. Each display sequence can be given a name that will be presented on the display. Since access level 5 typically requires the security hardware jumper. RS422 (RS485) or Ethernet interfaces. The names of the sequences can be configured. there can be up to five display sequences with a maximum of 40 selectable display layouts in each. cycling automatically stops and continues again after one minute. 0-9 and :.1 Automatic display cycling Automatic display cycling means that the display layouts in one or more display sequences are automatically cycled by the meter. If a user manually navigates in the display sequences via the meter's buttons. Note1: Password cannot be used on the first active display sequence. Note2: If a password-protected display sequence is configured for automatic display layout cycling.5 Display sequences The following is a description of the function properties of CewePrometer’s display sequences. 4. 4.2 Passwords and security The display sequences can be configured to be password protected to limit access for various users.4.50) lists all of the CewePrometer’s available display layouts.5.32) describes how to navigate in the display sequences via the meter’s buttons. cycling restarts with the first layout in sequence 1.5. 4. this feature can be used to enforce a display sequence that cannot be changed or deactivated using CeweConfig.

Authorisation levels 1 Provides access to reading. This setting is only used for the DLSM/COSEM protocol. The optical port can be set at a speed of between 300 and 9600 bps. and communication port #2 can be set at a speed of between 1200 and 19200 bps. After that.4. a modem initiation string can be configured that the meter sends via the serial port. CewePrometer User Manual Page 33 of 80 . The setting can only be changed at access level 5. The block is in effect until the next hour shift. Public BGX501-856-R02. 4.4 Security The meter has five authorisation levels that can limit access to the meter during communication via any of the meter’s communication ports. reset registers and change certain security setting.3 Bus address A bus address can be defined for any serial communication port in the meter and shall have a value of 16 or higher. See the document ‘CewePrometer meter reading’ for more details. Authorisation levels 3 to 5 may be protected by passwords or by a circuit board jumper. 4 Provides access to everything in level 3 plus access to transfer new firmware to the meter. If the setting ‘Require COP password compliance (min length 6)’ is activated. 5 Provides access to everything in level 4 plus access to calibrate the meter. Authorisation levels 1 and 2 are password-protected.6.4. before shifting over to the specified communication speed. When connecting to the meter. The optional ports designated as communication ports #1 and #2 differ in this respect.1 Limitation of total access attempts The meter limits the total number of access attempts to six when incorrect passwords are entered. a new password is required to be at least 6 characters. which means that connected software must be aware of the speed to be able to communicate. For more information on protocol support.2 Passwords A password consists of up to 12 case insensitive alpha-numerical characters.6. 4. see the document ‘CewePrometer meter reading’. access is granted to the highest level that is lacking password regardless of the password given by the user. 4. The meter sends the initiation string when the meter is turned on and thereafter every tenth minute.1 Communication speed The meter’s optical port always starts with a baud rate of 300 bps. CeweConfig) that communicates with the meter via the optical port does not need to know the speed that the meter’s optical port is set to.also the DLMS/COSEM protocol. regardless of what is configured. At the seventh attempt.6. During ongoing communications.6. new password attempts may be made.2 Modem initiation If a modem is connected to one of the optional ports.6.6. They start at the specified baud rate from the beginning. 2 Provides access to everything in level 1 plus access to set the clock and finish historical periods (also resets maximum demand values). the meter waits to send the initiation string until communications has stopped. 4. This means that software (for example. 3 Provides access to everything in level 2 plus access to configure the meter. 4. Communication port #1 can be set at a speed of between 300 bps and 19200 bps. The authorisation check may be deactivated for a level by deleting the password. the meter blocks access whether the password is correct or not. The initiation string can be used to set the correct communication settings for the modem and can consist of AT-Commands. 4.

4. settings in the measurement form can only be changed at access level 5. The table provides an overview of quantities that can be logged. transformer compensation cannot be changed at all. and can only be changed at access level 5. parallel and individually configurable loggers.6. Quantity By phase Total Active energy import Active energy export Reactive energy import Reactive energy export Reactive energy inductive Reactive energy capacitive Reactive energy QI Reactive energy QII Reactive energy QIII Reactive energy QIV Apparent energy import Apparent energy export Phase voltage Line to line voltage Current Active power Reactive power Apparent power Yes Yes No No No No No No No No No No Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Page 34 of 80 Instant values No No No No No No No No No No No No Yes Yes Yes Yes Yes Yes BGX501-856-R02. CewePrometer User Manual Public .  Permit measuring configuration only at level 5  Block configuration of transformer compensation  Block configuration of display sequence 4 4. Some quantities can be logged both by phase and as total values for all three phases.4. If this setting is active.7 Loggers The CewePrometer has two identical.4 If this setting is active. 4. 4. the function of the jumper can be modified.4. That which is described in this section applies both to logger 1 and logger 2. it is not possible to change the content of display sequence 4. 27). tfcr0004. there is space for a circuit board jumper that provides access to authorisation level 5 when fitted.3 Security settings The following security settings modify what can be configured at what access level. that describes the procedure for opening the meter and fitting the jumper.6.4. If the meter is connected with authorisation at level 5.7. The settings are of the type active/not active.6. Access restriction via circuit board jumper Inside the CewePrometer. Security can be heightened by requiring the jumper even for lower authorisation levels down to level 3. Cewe Instrument can provide a technical fact sheet. others only as total values. Certain instant values in the table are not available in 2-element meters and thus cannot be logged.4.1 Overview A logger in a CewePrometer can log values for instant quantities. If this setting is active. see the section Instant values (pg. This function requires level 5 for measuring configuration. Security can also be relaxed by making authorisation level 5 accessible via a password. or change its name or activation. energy registers and external registers.5 Access restriction for measurement configuration Generally the meter allows to be reconfigured at access level 3.

Based on these register values. A logger’s capacity is dependent on number of channels and logging interval.7. Public BGX501-856-R02. interval snapshots.8 2 43 28 21 17 14 12 10 9.6 8.6 7. the oldest values will be written over. Capacity in days Number of logging channels Logging interval (min) 4. maximum or minimum value during the logging interval or as the instantaneous value at the end of the logging interval. Common for all channels in a logger is that the logging interval that can be configured from one minute up to one hour. at each logging occasion the current registers values is logged.e. The table shows the capacity in number of days before the oldest value is written over.5 15 326 217 163 130 108 93 81 72 65 59 21 12 20 435 290 217 174 145 124 109 97 87 79 28 17 30 652 434 326 260 217 186 163 144 130 118 42 25 60 1304 869 652 521 434 372 326 289 260 237 84 51 Storage of logged values Logged values are saved with time stamps.2 6.9 1.4 0.2 10 217 144 108 86 72 62 54 48 43 39 14 8.8 1. interval snapshots.2 Logging interval and total channels A logger can store data in 1 to 50 channels. Maximums and minimums are detected based on 1 sec.8 4.3 1 2 3 4 5 6 7 8 9 10 30 50 1 21 14 10 8.7. CeweConfig provides all three alternatives.0 4.6 7. the reading software can present the energy as register values.2 5.7 5 108 72 54 43 36 31 27 24 21 19 7. CewePrometer User Manual Page 35 of 80 . When the logger is full. i. periodic energy or as average power. 4. and average is calculated based on 1 sec.3 3. tariff information and flags that indicate events that have occurred during the logging interval. Instant values can be logged as average.4 4.9 2.Frequency Phase angle Power factor THD voltage THD current External registers 1–8 Voltage harmonic 1-31 Current harmonic 1-31 Voltage unbalance Active energy import Delta Active energy export Delta Reactive energy import Delta Reactive energy export Delta Reactive energy inductive Delta Reactive energy capacitive Delta Reactive energy QI Delta Reactive energy QII Delta Reactive energy QIII Delta Reactive energy QIV Delta Apparent energy import Delta Apparent energy export Delta Not applicable Yes Yes Yes Yes Not applicable Yes Yes No No No No No No No No No No No No No Yes Yes Yes Yes Yes Yes No No Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes N/A Yes Yes Yes No No No No No No No No No No No No Energy is logged as register values.

external electromagnetic interference. tariff will be recorded as 1. Note: There are alarms and events that cannot be configured. For example. a value with the time stamp 15:00 refers to the period 14:00 to 15:00. this is indicated with “Invalid value”. CewePrometer User Manual Public . The meter enters the alarm state when the limit value is reached. For the CewePrometer 1. The incomplete log record before the power loss will have the following limitations:  If any instant values were configured to be logged.  If tariff is controlled using rate input.The time stamp indicates the end-time. 4. see the section Event log (pg. When a user-defined alarm has triggered during the past interval. This is because power is logged as an average value of instant values. the meter clock has been adjusted either instantaneous or a sliding adjustment is in progress. To indicate events or states during an interval.4 Behaviour after power loss When the meter starts again after loss of auxiliary power. The first value after the logging memory having been configured will thus always be indicated with "Faulty value” (the logging me mory is reset in conjunction with reconfiguration).0 or earlier. 4. Event or state Time adjusted Disturbed Alarm Parameter changed Incorrect energy direction Daylight savings time Voltage loss/missing Invalid value Battery Power loss Name of flag Explanation T During the past interval. Page 36 of 80 BGX501-856-R02. During the past interval have the meter been without auxiliary power. P The CewePrometer’s configuration. A more exact time for events is specified in the log.2. Tariff information indicates active rates for energy and power during the past interval. they will be recorded as 0. it is logged with a control sum. For more information. A In conjunction with user-defined alarms being configured. but instead. Alarms are configurable by the user and are therefore called user-defined alarms. If the logging interval is configured to one hour. B O For several of the flags. D The past interval is incomplete. are always active. this is indicated with the flag “Alarm”. Note: When power is calculated from logged energy values. If the check sum is incorrect when the value is read. but could occur if the meter is subjected to powerful. this is indicated with the flag “Incorrect energy direction”. calibration or initiation has changed. Examples of such alarms are indication that the clock has been changed or that an auxiliary power loss has occurred. an interval shortened by the meter being without auxiliary power or if the logging memory has been reset. C To be able to guarantee that a logged value is correct. R The CewePrometer can be configured for a normal energy direction. a logged value can be stored with one or more flags. any energy accumulated up to the power loss will be stored with a time stamp immediately following the power loss. import or export. it may be specified that an alarm will also be indicated with logged values. additional information can be viewed in the event log.7. ‘S’ and ‘O’. The instant values are read twice per second. the maximum delay is 64 seconds. V During the past interval all measuring voltages have been lost or missing. 38). the resulting values will be somewhat more precise than when power is logged directly.  The only notification flags that are handled are ‘D’. Estimated battery lifetime is up.8 Alarms The CewePrometer is equipped with alarms to be able to indicate when measured quantities are over or under a configurable limit value. while energy is accumulated continuously. An alarm is generated only after the alarm state has continued for a configurable time (delay). This is a rare event. Which of these three the flag refers to can be seen in the event log. S Daylight saving time has been in effect during the past interval. If the meter’s energy direction deviates from this.

69 A current deviates percentage-wise from the average value of all currents more than the limit value. The 3-phase system’s total power is beneath the nominal power ∙ limit value. The event log identifies the missing phase or phases.4.8. The event log identifies the phase with the deviating energy direction. The event log identifies the phase and harmonic no. The event log identifies the current through a particular phase but voltage is missing Indication Alarms are always stored in the event log. A voltage deviates percentage-wise from the average value of all voltages more than the limit value. One or more voltage phases are missing. nominal primary value (current. The average value of the voltages is above the nominal voltage ∙ limit value. which is the configured. CewePrometer User Manual Page 37 of 80 . line to line voltage. An overtone (2nd to 31st) relative to the basic tone on same current phase exceeds the limit value. Note: No alarm applies when all phases are unavailable and “all phases are missing” checkbox is checked. 38). An overtone (2nd to 31st) relative to the basic tone on same voltage phase exceeds the limit value. The following table provides an overview of available alarms. This alarm is not available on 2-element meters. The average value of THD for all current phases exceeds the limit value. The power factor for the 3-phase system is beneath the limit value. The average value of THD for all voltage phases exceeds the limit value. the limit value is specified as a percentage of the nominal value. The 3-phase system’s total power is above the nominal power ∙ limit value. Alarms can also be configured to indicate in one or more of the following ways: Alarm LED on meter front Changed digital output level Indication of a logged value with a flag Public BGX501-856-R02.8. and for 2-element meters.1 Overview For most user-defined alarms. The phase angle for a phase deviates by more than 90 degrees from another phase. See definition on pg. the limit value corresponds to phase voltage. voltage or power). For 3-element meters.2 Alarm state applies when… The average value of the voltages is beneath the nominal voltage (limit value) Note: No alarm applies when all phases are unavailable and “all phases are missing” checkbox is checked. Current is flowing above pre-defined limit through a particular phase but voltage is missing Comments The event log identifies the phase and harmonic no. Alarm Low voltage High voltage Low power factor Voltage unbalance Current unbalance Low active power High active power High THD voltage High THD current High harmonic voltage High harmonic current Reverse energy direction Voltage phase missing Internal error Current without voltage 4. See the section Event log (pg.

4. See Appendix B . The configuration log can contain a maximum of 100 changes. Each entry describes which setting was changed. Thereafter. For certain events. Via CeweConfig.The alarm LED stops flashing and the digital output returns to inactive low after the alarm state passes. which phase the event concerns. The configuration log can be viewed in CeweConfig. Internal errors are listed in Appendix B . and lists the old value (hexadecimally encoded). The CewePrometer always stores the three highest average values from three different days. 36). Examples of meter events are auxiliary power loss and clock resetting.58) Internal errors The contents of the internal data structures. A complete list of meter events is in Appendix B . 4. The event log can contain a maximum of 100 events. 4.9 Event log The CewePrometer has a number of defined events and alarms that are stored in the meter’s event log when they occur.Events and Configuration Log (pg. The configuration log can also be included in a display sequence on the meter. If an error is detected in one of the data structures. and suitable actions should be taken. Only the time stamp and event code are shown on the display. for example. When a historical period ends. the event log can also be printed out or saved to a file. generate an event in the event log. The meter has a counter for the total number of events that have occurred since the latest reset. such as configuration and energy registers. 4. data is also stored for the events. CewePrometer User Manual Public . The alarms each have an individual configuration that determines the conditions for when an alarm is to be activated. If the new average value exceeds the previously stored value. Any further changes will be denied.10 Configuration log Any changes to measurement configuration are logged in the meter’s configuration log. Clearing of the configuration log can be done with the command Tool/Reset/Event log(configuration). These have set conditions and are stored only in the event log. An event is represented by a time stamp and a code that indicates what has occurred.1 Display of events The event log can be viewed on the meter’s display if the display layout Events is configured to be included in one of the meter’s display sequences. Meter events The meter is also equipped with a number of alarms that are not configurable by the user. so-called meter events. the event log should be checked for related information. the oldest will be removed to make room for the new. it is designated as an internal error. the current maximum demand values are copied to historical registers and then reset.Events and Configuration Log (pg. Events are divided into three categories: User-defined alarms The meter has a number of alarms that when they occur.Events and Configuration Log (pg. The average value is calculated for an interval and compared with a previously stored value. Page 38 of 80 BGX501-856-R02. If an internal error is indicated. and requires access level 5. See the section Alarms (pg. active power during a historical period.58).11 Maximum demand Maximum demand is the highest average value of. it becomes the new value for maximum demand.58) for a complete list of all events. for example. which converts the code into plain text and displays any related data. until the configuration log is cleared. A more detailed description of the meter's events can be viewed in CeweConfig.9. are checked by the meter.

4. the new average value is compared with the previous and possibly stored as a new maximum demand value. 4 July 90 kW 90 kW 07-04 13:00 - - 13:30 89 kW 90 kW 07-04 13:00 - - 14:00 91 kW 91 kW 07-04 14:00 - - 00:00. CewePrometer User Manual Page 39 of 80 . 4. At the end of the interval. When a historical period is finished. which makes a total of 24 values with time stamps for when they occurred. 3. 4. Example: A historical period has just been finished and all maximum demand values have been reset. The calculation interval can be chosen between 1 and 60 minutes in the following predefined steps: 1.11. 7 July 94 kW 95 kW 07-05 00:30 94 kW 07-07 16:00 93 kW 07-06 00:00 Note: There is never more than one maximum demand value for one day. 2. 5 July 75 kW 91 kW 07-004 14:00 75 kW 07-05 00:00 - 00:30 95 kW 95 kW 07-05 00:30 91 kW 07-04 14:00 - 00:00. 5. 6 July 93 kW 95 kW 07-05 00:30 93 kW 07-06 00:00 91 kW 07-04 14:00 16:00.1. 4 July Highest value Second highest Third highest - - - 13:00. 15. Public BGX501-856-R02. 10. The table is read from top to bottom and illustrates what will be stored in the maximum demand registers at the various times.1 Overview Up to eight quantities can be saved in the maximum demand registers. 30 and 60 minutes. Active energy import Active energy export Reactive energy import Reactive energy export Reactive energy inductive Reactive energy capacitive Reactive energy QI Reactive energy QII Reactive energy QIII Reactive energy QIV Apparent energy import Apparent energy export The calculation interval for average values determines the period during which average values are calculated. Point in time Average power 12:59. 20. The meter is configured with a calculation interval of 30 minutes and active power as the quantity for which to calculate the average value. the MD values are accumulated to these registers.11.1 Cumulative Maximum Demand For each MD value there is an associated accumulating register. The table shows the types of energy that can produce maximum demand values.

When a period is finished.12 Historical registers Historical registers are used by the CewePrometer to store current register values at defined points so as to be able to read them later.12. CewePrometer User Manual Public .1.2 Rising Demand CewePrometer has a function to show the Rising Demand in the display. The historical registers are time stamped to indicate when storage occurred. 4. 4. The period is finished when the meter clock reaches the end of the month. Periods can be finished in various ways: Via meter button The period is finished when the meter’s Menu/Apply button is held down for more than two seconds when the display layout Finish period is active.12. This requires both that the historical registers are configured to permit ending via a digital input and that an input is configured for this purpose. The period ends when a pulse is received at a digital input on the meter. external registers. and dates/times when they were stored. This requires both that the historical registers are configured to permit finish via the meter button and that a display layout for this is entered in a display sequence. Date and time Energy registers Maximum demand values Time of use registers External registers Historical register includes a number of stored registers. When the MD period ends this counter is set to zero. The CewePrometer can store up to 15 historical registers. Note: The display layout Finish period will only work if the meter is configured to permit ending a period via a button. the current registers values are stored in historical registers and the maximum demand values are reset. 4.2 Lock out time for finish historical period The Lock out time prevents the user to create a new historical period within a configurated time. During the demand period the display also shows the elapsed time of the period. an event is stored in the meter’s event log. Page 40 of 80 BGX501-856-R02.4.1 Finish historical period By finishing a historical period. Via CeweConfig At the end of the month Via digital input.1. Stored in historical registers are all maximum demand values.1. The period is finished when a command is given from CeweConfig or third-party software. The value is presented as a continuously increasing demand until the end of the MD period. with the exception of energy registers by phase.11. TOU registers and energy registers.

6 TOU registers An energy register or external register that is chosen to be divided into the rates is a TOU register. Special days specify the day type that applies on a certain date.4.13. 4. rate 3 always applies.13. 4. It is active energy import that is divided in to different rates. In the CewePrometer. 4. During the summer months. A special day specifies the day type that applies on a certain date. Day types specify how rates change during a 24-hour day. 16 changing points per day may be specified. By setting a starting date for a tariff structure. A day type can be connected to a day of the week in a season or to a special day. Public BGX501-856-R02. 4. from a maximum of eight.1 Tariff structures In the CewePrometer. there can be separate day types for energy and maximum demand values. rate 1 applies around the clock.7 Maximum demand values and tariffs Maximum demand values are stored together with information on which rate applied when registered. For one and the same day. In the CewePrometer.3 Season A season refers to a period. seasons and special days. up to 30 special days per tariff structure can be configured. there are 16 day types (A–P). there are two separate tariff structures. it can be configured before it goes into force. Seasons specify the day types that apply during the days of the week. the season defines the day types that will apply during the days of the week. There are eight TOU registers and each TOU register has separate registers for eight rates. A tariff structure consists of seasons. 4. Both tariff structures have a set of day types.13.13. rate 1 applies around the clock.13. tariff structures can be stored that switch rates at predetermined times according to a configurable pattern.13 Time of use Time of use is a function that enables energy to be divided up into various registers depending on the rate that applied when the energy was measured. A day type specifies witch rate. It is not possible to combine Rate input with other types of rates. For the rest of the day. The seasons are arranged in a sequence where one season replaces the previous at a predetermined date. Special days can be configured to apply every year on the same date or for a single year. On Sundays. 4. Two to eight different rates can be configured for the energy registers and maximum demand.13. The rates for the energy register and maximum demand can be configured independently of each other.13.4 Special days Days that change rates according to a pattern that is not covered by linking day types to seasons (such as holidays) are called special days.5 Rate input Rate input structures are the only option in Time of use except TOU registers if Rate input are chosen in digital input. 4. Example: The conditions are Monday to Saturday. day types and special days or rate input. rate 1 applies. should apply when during the day. The maximum number of rates is eight. For maximum demand values. Monday to Sunday.2 Day type In the CewePrometer. On Christmas Eve. 24 December. 1June to 31 August. rate 1 applies around the clock. rate 2 applies from 7:00 in the morning until 17:00 in the afternoon. In the CewePrometer. CewePrometer User Manual Page 41 of 80 . During this period. Rate input can be used to control active rate depending on the state of digital input signals. there are 16 seasons per tariff structure.

Changing the transformer compensation can be blocked by the security setting ‘Block configuration of transformer compensation’. 4. 69). Day type B to apply during the summer months.1 Overview The tables present an overview of the transformer compensations in CewePrometer. L3 Amplitude error as percent Phase angle in minutes Power transformer compensations Name Copper losses. Day type A 00:00 Rate 1 07:00 Rate 2 17:00 Rate 1 Day type B 00:00 Rate 1 Day type C 00:00 Rate 3 Seasons Two seasons must be configured. Because no year is specified. 4.Day types Three day types must be configured. The formulas used in the meter are presented in Appendix F – Calculation Principles (pg. Instrument transformer compensations Name Value to entered Voltage error L1.14. 12-24 Energy MD C C TOU register A TOU register is configured to accumulate active energy in several registers for the different rates. L3 Amplitude error as percent Phase angle in minutes Current error L1. Day type A to apply to energy during the autumn. winter and spring. 06-01 Energy MD A C A C A C A C A C A C B C 09-01 Energy MD B C B C B C B C B C B C B C Special day For rate 1 to apply all of Christmas Eve.14 Transformer compensation Transformer compensation is a function for compensating for measurement errors in instrument transformers and for losses in power transformers. The first season will apply during the summer period and the second the rest of the year. CewePrometer User Manual Public . L2. the special day will apply every year. The season that applies from 1 September will also apply from 1 January to 31 May. a special day must be configured. The function enables the CewePrometer to present measurement values for which errors and losses have been compensated. L2. and day type C for maximum demand values throughout the year. Total values Page 42 of 80 Value to entered Active loss as percent of nominal power Reactive loss as percent of nominal power Active loss as percent of nominal power Reactive loss as percent of nominal power BGX501-856-R02. This setting can only be changed at access level 5. Total values Iron losses.

3 2-element meter When voltage errors are compensated on a 2-element meter. One value is specified for active loss and one for reactive. their amplitude error in percent and phase angle error in minutes are configured in the meter. are affected but not current and voltage. as well as all quantities that arise from these: power. etc. Nominal power: Powernom Loss value: Loss value Currentnom Line voltagenom 3 Loss / Powernom 100 4. energy.15.15.15. L23 and L31 instead of on phase voltages. Harmonics measurement is described in the section Instant values (pg.14. current and voltage are affected.1 Voltage monitoring Voltage monitoring monitors three states: swells (overvoltage). For 3-element meters. power factor. The accumulating counters and the event log can be read in CeweConfig. Calculating loss values Based on the nominal total power and the measured loss value in watts. The errors can be specified separately for all voltages and currents.4 Power transformer losses Power transformer losses consist of copper and iron losses. a loss value can be calculated as a percentage of nominal power.2 Interrupts When the average value for voltage falls to under 10% of the configured nominal voltage. In compensation of current errors for 2-element meters. the limits attained are 9 kV and 11 kV primary.4. and down to 160 ms. Nominal power is calculated with configured nominal current and voltage.14. 27). 4. power. It is the loss value that is configured in the meter. When copper loss are added per phase.14. only L1 and L3 can be compensated for because they are the only currents measured. Compensation of L31 has no significance in this respect. 4. Only L12 and L23 are included in the calculation of power and energy. When instrument transformer compensations are used. and is deactivated by setting the limits to zero. is presented as "< 3 s".1 Sags and swells Sags and swells shorter than one second are registered by accumulating registers. One minute is equal to the angle 1˚/60.1. 4. it is instead registered in the event log with a time stamp and duration. 4. this is registered as an interrupt in the event log with a time stamp and duration. and for 2-element meters.1. and the configured nominal primary voltage of 10 kV. Public BGX501-856-R02. CewePrometer User Manual Page 43 of 80 . the resulting copper loss is the average of the value.15 Power quality Power quality encompasses voltage monitoring and harmonics measurement. the average value for phase voltage is monitored. 4. Example: For an upper limit of 110% and a lower limit of 90%.2 Instrument transformer compensations To compensate for errors in instrument transformers. When compensation of losses is configured. etc. If the state lasts longer than one second. Monitoring is activated by configuring the limit values for sags and swells. They are expressed as percentages of nominal power. The limits are expressed as percentages of configured nominal voltage. the average value for line to line voltage is monitored. sags (undervoltage) and interrupts. energy. Duration for an interrupt of less than three seconds. this is done on line to line voltages L12.

The hysteresis limit is always midway between the low or high limit and nominal voltage. Primary voltage (example) Percent 11 kV 110% 10. Example of general information texts where the label is "Owner" and the text "Cewe Instrument".5 kV 105% 10 kV 100% 9. such as the name of the station where the meter is installed.16.16 Miscellaneous 4.1 General information texts General information texts are used in the CewePrometer for all types of information. The information texts can be shown on the meter's display and read with CeweConfig. display layouts for this can be entered in a display sequence. There are four information texts that consist of a label and an associated text.5 kV 95% 9 kV 90% Limit for swells Hysteresis limit Nominal voltage Hysteresis limit Limit for sags Duration sag 1 kV 10% Limit for interrupt Duration interrupt 4. Corresponding time at 60 Hz is 130 ms. This to avoid several states being registered when the voltage level varies around a limit. CewePrometer User Manual Public . To present information texts on the display.State Sags and swells Duration 160 ms5 –1 s Registered in Accumulating counter Duration presented as Duration not specified Sags and swells Interrupt > 1s 5 160 ms – 3 s Event log Event log Duration of state <3s Interrupt >3s Event log Duration of state 4. 5 Applies to basic frequency 50 Hz.2 Hysteresis Hysteresis means that the limit for a state and the limit for when it is restored are different.15. Both the label and text can be up to 17 characters long. Page 44 of 80 BGX501-856-R02.

16. The following languages are available in meter version 1.2 Language on display The CewePrometer’s display can present texts in a number of languages.4.0 onwards. CewePrometer User Manual Page 45 of 80 . Swedish English German French Italia Public BGX501-856-R02.2.

5 Using the Display This section describes how the CewePrometer’s display can be used to read measurement values and also to control certain functions in the meter. If the voltage order is correct. 5. 32). Quantity Unit Quadrant I Phase Quadrant II Quadrant III Measurement value Quadrant indicator Quadrant IV Display layout Import/Export For quantities that can be Import or Export.is displayed. Reversed current direction on phase 1. the current direction is indicated with a + or a -. “Phase missing” is shown on the display. CewePrometer User Manual Public . 50). if it is not. 69) for a definition of quadrants. The current direction is indicated with a + if the current’s phase angle is following its voltage with a maximum deviation of 90º. the display layout Voltage Order is always shown for about 15 seconds. a setting in the Display Sequence form controls whether Import is shown as ‘Imp’ or ‘+‘. whether Export is shown as ‘Exp’ or ‘-’. The quadrant indicator shows the quadrant in which energy is currently being measured. The display layouts are arranged in display sequences. The display layout shows the order of the connected measurement voltages. A complete listing of display layouts is presented in (pg. Correct voltage order and current direction. a . Page 46 of 80 BGX501-856-R02. Quadrant indicator In most display layouts.1 Voltage order display layout When the CewePrometer starts. If not all voltages are connected. Reversed voltage order (no current direction shown). a quadrant indicator is shown in the lower-right corner. For details on display sequences. and correspondingly. see Display sequences (pg. See Appendix F – Calculation Principles (pg.

For more information. Step backward Step to previous layout in the display sequence or moves downward in a menu. press the Menu/Apply button for about two seconds. Sealed button A Short press to the sealed button provides access to the fifth display sequence. From the system menu. Menu/Apply The Menu/Apply button is used to open the menu where one of four configurable display sequences can be chosen. Use the step buttons to change rates and Menu/Apply to confirm your choice. The button is used to confirm choices or initiate other activities depending on the current display layout. Finish a historical period means that all registers are saved and maximum demand values are reset. 49) 5. rate 1 To choose between rates. 5. 5. see the section Historical registers (pg. you can view program versions for all modules and activate the trace function for the communication ports.1 Time of Use TOU register 2 of 8. press the Menu/Apply button for about two seconds. see Using the display for communication diagnostics (pg. Additionally.2 Navigating in display sequences Use the buttons on the front of the CewePrometer to step through the display sequences. #5 indicates total number of previously finished periods. The rate will continue to apply for other display layouts that show TOU registers. 6) section for button placement. CewePrometer User Manual Page 47 of 80 . 40).3 Display layouts with choices In certain CewePrometer display layouts.5.3.2 Finish historical periods Layout for finishing historical periods. active choices can be made. 5. see the Product Description (pg. For more information.3 Public Historical registers BGX501-856-R02. To finish a period. Press the button for about two seconds to open the system menu. Step forward Step to next layout in the display sequence or moves upward in a menu.3. For more information. the display layout shown above must be included in a display sequence.3. The meter may be configured so that periods may be finished by pressing a button on the meter.

58). To step between periods. with value and unit. See Historical registers (pg. The meter registers different types of events. Press Menu/Apply to return to stepping between display layouts. 5. Press Menu/Apply for about two seconds to view a list of all logger items. see the section Event log (pg.6 Events No of events. Choose historical period and then press Menu/Apply to be able to change rate with the step buttons. 14:14. finished 12 July 2005. CewePrometer User Manual Public . 40).3. Explanations of these IDs are in Appendix B . Each item starts with date and time. 5.Events and Configuration Log (pg. and for these. This display layout shows how many events are saved in the meter. 5. There are display layouts for viewing historical energy registers. Press Apply for about two Page 48 of 80 BGX501-856-R02. followed by a row showing the notification flags for that item. rates also can be changed. the Menu/Apply button must first be pressed for about two seconds.3. The period will continue to apply for other display layouts. The title line with the date indicates that the display layout is showing a historical register. 38).3. 5.5 Logger Press Apply for about two seconds to browse through logger items.Historical register period 02. Press Menu/Apply to return to stepping between display layouts. Press Menu/Apply for about two seconds to view a list of events in chronological order with ID numbers. Logger There are display layouts for viewing logger 1 and logger 2. Then follows a row for every active channel in the logger.3.7 Configuration log No of changes.4 Historical TOU registers Historical TOU register Switching historical periods Switching rates Historical registers also contain TOU registers. external registers and maximum demand registers. The step buttons are then used to change periods. Press Apply for about two seconds to browse through the events.

Problems arise if the resistor is not installed or incorrectly located. Every entry is shown with time. it is important that there is a termination resistor installed on the communication cable.4 Using the display for communication diagnostics To facilitate troubleshooting of communications with the meter. Use the step buttons to choose one of the three communication ports: trace opto. The configuration log records changes to measurement configuration. Connect a PC or other meter reading unit to the meter.3. and corresponding IDs are in Appendix B . ID of the changed configuration and the old value. alarms of the type internal error in the meter can be confirmed/acknowledged. With RS422 communications. To check if communication is working: Open an empty display.Events and Configuration Log (pg. Note that the procedure described here assumes the IEC62056-21/IEC1107 protocol. see the handbook for the RS422 converter. The function can be chosen from the system menu. Functioning communications with the meter. try one or more of the following: Check the cabling and connections between the meter and reading unit. 58). The incoming characters that the meter registers are presented on the display.seconds to browse through the changes. If you do not attain these results. Press Menu/Apply for about two seconds to view a list of changes in chronological order. The “sssssss” string represents the meter’s serial number and it is only included when the meter must be addressed. trace port 1 or trace port 2. A list of the configuration changes monitored by the configuration log. Confirm with the Menu/Apply button and an empty display with a cursor at the upper-left corner will be shown. Layout for Trace to file for communications with the meter. CewePrometer User Manual Page 49 of 80 . 38). accessible by pressing the sealed button for about two seconds. This display layout shows the number of changes that has been recorded.8 Confirming alarms By pressing Apply for about two seconds. For more information. there is a trace function integrated into the CewePrometer. Check the display after the call to the meter: ”/?sssssss!CRLFAK0Z1CRLF”. see section Event log (pg. Z can be a digit between 0 and 7. Check that the meter and the reading unit have the same baud rate. For more information on internal errors. Public BGX501-856-R02. 5. 5.

Instant Values Page 50 of 80 BGX501-856-R02.Appendix A . CewePrometer User Manual Public .Display Layouts This appendix presents the layouts that can be viewed in the CewePrometer’s display sequences.

CewePrometer User Manual Page 51 of 80 .Energy Registers Graphs Public BGX501-856-R02.

Maximum Demand Values

From top to bottom, the highest
to the third-highest maximum
demand value for the period is
displayed. R1 indicates the rate
that was active when the
maximum demand value
occurred.

This register adds one extra
decimal compared to energy
presentation.

The time is the elapsed time of
the demand period.

Historical Registers

Example of historical register –
active energy import. Title line
with date and time shows that it
is a historical register.

Press Apply for about two
seconds to finish the period. #5
shows the no. of periods that
have been finished.

Historical TOU register.

Press Apply for about 2 seconds
to switch historical period.

Press Apply once more to
change rate.

Time of Use

TOU register 2 of 8.

Page 52 of 80

Current season S1. Active rate for energy –
Egy and for maximum demand value – MD.
Active day types for energy and maximum
demand value.

BGX501-856-R02, CewePrometer User Manual

Public

\Miscellaneous

One of four display layouts for
general information texts with
label “Owner:” and text “Cewe
Instrument”.

Total events.

Press Apply for about two
seconds to browse through the
events.

No of configuration changes.

Press Apply for about two
seconds to browse through the
configuration changes.

Logger

Press Apply for about two
seconds to browse through
logger items.

Constants for calibration LEDs
presented as secondary values.

Constants for calibration LEDs
presented as primary values.

Correct voltage order and current
direction.

Incorrect voltage order.

Incorrect energy direction on
L1.

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Page 53 of 80

Ratios for current and voltage
transformers – CT and VT.

Transformer Compensation

Pictures with OBIS Codes
Energy registers
For pictures containing rate (E ≠ 0), hold down Apply for two second to enter rate switching mode, where mode
can be changed by using up/down buttons. Push Apply again to leave the rate switching mode.

Active energy import.

Active energy export.

Reactive energy import.

Reactive energy export.

TI5 active energy import.

TI5 active energy export.

TI5 reactive energy import.

TI5 reactive energy export.

Active import with rate, here
showing rate 4.

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BGX501-856-R02, CewePrometer User Manual

Public

Active export with rate, here
showing rate 4.

Reactive import with rate, here
showing rate 2.

Reactive export with rate, here
showing rate 6.

Historical Registers
In display pictures where a star is present (where the number to the right of the star signifies a certain historical
period, element ‘F’ of the OBIS code), it is possible to switch between periods by holding down the Apply button
for two seconds, and then using up/down buttons. This mode is indicated by the top row in the display being
black. Push the Apply button again to return to normal mode.
In display pictures with both historical period and rate, the period can be changed as described above. By
pushing the Apply button again, the bottom row in the display turns black. This indicates a mode where the rate
can be switched by using the up/down buttons. Push the Apply button a third time to return to normal mode.

Historical Period Counter (VZ).

Historical period timestamp, here
showing historical period with VZ
= 1.

Active energy import for
historical period with VZ = 1.

Active energy export.

Reactive energy import.

Reactive energy export.

Active energy import by rate.
Here showing rate 1 for historical
period with VZ = 1.

Active energy export by rate.
Here showing rate 1 for historical
period with VZ = 1.

Reactive energy import by rate.

Reactive energy export by rate.

Historical Maximum Demand for
active energy import.

Historical Maximum Demand
for active energy export.

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Cumulative Demand Cumulative demand for active energy import. Furthermore. sum of all rates (E = 0). External register #1. External register #2 rate version. Page 56 of 80 Cumulative demand for active energy export. here showing rate 4. sum of all rates (E = 0). External register #1. a rate register must be allocated for the external register for it to be available in rated version (E ≠ 0). hold down Apply for two seconds to be able to switch between rate 1 – 8 using up/down buttons. In rate pictures.External registers An external register must have been configured for pulse input in the Digital I/O form to be available. BGX501-856-R02. Maximum Demand Maximum demand for active energy import. External register #1 rate version. Push Apply again to leave the switching mode. here showing rate 2. CewePrometer User Manual Public . Maximum demand for active energy export.

Values of logger #1.Rising Demand Rising demand for active energy import. CewePrometer User Manual Present time. Rising demand for active energy export. Public BGX501-856-R02. Miscellaneous Logger #1 (Logger #2 not available with OBIS codes). Meter serial number. Page 57 of 80 . Present date.

None A 24 Page 58 of 80 BGX501-856-R02. Category indicates one of the following: H Meter event A User-defined alarm I Internal error %1 and %2 represents data that is stored for the event. H 9 Measurement voltage interrupt (duration %1). Event Data Category ID Phase (%1) has reversed energy direction. None A 20 Alarm for current unbalance. None A 21 Alarm for low active power. %1 indicates the time that the meter was changed to. H 16 Alarm for low measuring voltage. None A 19 Alarm for voltage unbalance. %1 indicates logger that is reset. H 15 Swell (duration %1). H 1 The meter’s internal clock is changed to %1. %1 indicates swell duration. ID indicates the code that is displayed for an event on the meter's display.Events and Configuration Log Events This appendix lists the events that can appear in the CewePrometer event log. None A 23 Alarm for high THD. None H 8 Logger #%1 has been re-configured and therefore reset. None H 6 Registers are transferred to historical period. voltage. None H 7 Maximum demand registers has been reconfigured and therefore reset. %1 indicates duration of the interrupt. H 4 Auxiliary power loss on meter None H 5 Historical register reset. H 14 Sag (duration %1). Maximum demand value reset. H 2 Energy registers have been reseted. None A 18 Alarm for low power factor. %1 indicates phase with reversed energy direction. None H 3 Logger #%1 is reset. %1 indicates logger that has been re-configured and reset. None A 22 Alarm for high active power. CewePrometer User Manual Public . The time stamp for the event indicates the time before adjustment. None A 17 Alarm for high measuring voltage.Appendix B . %1 indicates sag duration.

I 1005 Configuration parameters in the display and register module have been reset after discovering that they were corrupt. None H 47 Current without voltage None A 49 Configuration parameters in the communication module have been reset after discovering that they were corrupt. 27 Alarm for long pulse at input #%1. %2 indicates the phase on which the harmonic exceeded the limit value. 45 Meter’s firmware has been upgraded. %1 indicates one more missing voltage phases.Alarm for high THD. %1 indicates input’s order number. None H 43 Initiation changed. 26 Alarm for high current harmonic #%1 on phase %2 %1 indicates harmonic’s order A number. A 30 Configuration changed. H 28 Alarm for short pulse at input #%1. %2 indicates the phase on which the harmonic exceeded the limit value. None A 25 Alarm for high voltage harmonic #%1 on phase %2 %1 indicates harmonic’s order A number. %1 indicates input’s order number. None H 46 The estimated battery lifetime is up. None I 1001 Configuration parameters in the I/O module have been reset after discovering that they were corrupt. I 1004 Calibration parameters in the measurement None module have been reset after discovering that they were corrupt. %1 indicates one or more phases H where the energy direction is not the normal. None H 42 Calibration changed. None I 1003 Initiation parameters in the measurement None module have been reset after discovering that they were corrupt. None H 44 Energy direction is opposite of normal direction on phase %1. None I 1009 Public BGX501-856-R02. None I 1007 MD registers have been reset after discovering that they were corrupt. H 29 Alarm for missing voltage phases %1. current. None I 1008 Measurement module missing or cannot be started. None I 1002 Configuration parameters in the measurement module have been reset after discovering that they were corrupt. None I 1006 A historical period has been reset after discovering that is was corrupt. CewePrometer User Manual Page 59 of 80 .

Configuration Log The following configuration changes are registered in the configuration log. ID Parameter 0 CT ratio 1 VT ratio 2 Secondary Voltage 3 Secondary Current 4 Watt seconds per LED pulse 5 Normal energy direction (0=both. 2=export) 6 Number of decimals in energy registers 7 Energy registers prefix Page 60 of 80 BGX501-856-R02. 1=import. The parameter ID is shown to the right of date and time in the meter display picture. CewePrometer User Manual Public .

1 stop bit. 7 data bits. The converter must be designed for 4-wire communications (RS422. MD45 and MDW45. 9-pin.Appendix C . CTS never active Data format IEC62056-21/IEC1107: 1 start bit. The communication equipment uses an RS422/RS485 port or an RS232 port through an RS232-to-RS422/RS485 converter. CewePrometer User Manual Page 61 of 80 . 8 data bits.Communication Ports Serial Communication Port RS232 The PIN configuration is compatible with a standard PC COM port. 1 stop bit. D-sub connector with a few exceptions. 9 pin. 1 stop bit. no parity Baud rate Port #1 300–19200 bps. 8 data bits. Hardware RS422 serial communication port Connector in meter 5-pole connector (Phönix) Communication protocol IEC62056-21/IEC1107 Mode C. Port #2 1200–19200 bps 5 4 3 2 1 Public Signal GND TX+ TXRXRX+ BGX501-856-R02. no parity Baud rate Port #1 300–19200 bps. programming mode or DLMS/COSEM Handshaking RTS always active. half duplex). 7 data bits. programming mode or DLMS/COSEM Data format IEC62056-21/IEC1107: 1 start bit. Some of the handshaking pins are not used. male contact Communication protocol IEC62056-21/IEC1107 Mode C. full duplex) or 2-wire (RS485. even parity DLMS: 1 start bit. even parity DLMS: 1 start bit. 1 stop bit. Hardware RS232 serial communication port Contact in meter D-Sub. Recommended converters are Westermo MA45. and another pair is used as a transmitting bus that all meters send on. Port #2 1200–19200 bps 1 2 3 4 5 RD TD Signal GND 6 7 8 9 RTS CTS - PIN configuration for RS232 connector on meter Serial Communication Port RS422/RS485 A twisted pair of wires is used as the receiving bus that all meters monitor.

7 data bits. programming mode Data format 1 start bit. To ensure reliable communications. even parity DLMS: 1 start bit. Start the program ‘Device Installer’ on your menu. 7 data bits. and cause communications to fail. Follow the instructions in the program. 1 stop bit. Page 62 of 80 BGX501-856-R02. The device needs to get the correct IP on your network. light bulbs and fluorescent lamps) can interfere with the transfer of IR signals if the light is strong. This procedure is fully described in the Lantronix pdf’s “DeviceInstaller User Guide” and “XPort User Guide” but also in short here. Hardware IEC62056-21/IEC1107 optical communication port Communication protocol IEC62056-21/IEC1107 Mode C. Download it and install the program on your computer. See the section below for details on how to install the virtual com port and how to configure the Ethernet port in the meter. 8 data bits.PIN configuration for RS422 connector on meter IEC62056-21/IEC1107 optical communication port – optical port Place the optical head so that the IR receiver and transmitter are in the optimum positions for exchanging signals. no parity Baud rate Port #1 300–19200 bps. Hardware Ethernet RJ-45 Communication protocol IEC62056-21/IEC1107 Mode C. Visible light from most light sources contains a certain amount of IR light that can cause interference.lantronix. Set the new IP address to the device and also subnet mask.com for the latest version of the “Device installer”. Click on the “Assign IP” button and choose “Assign a specific IP address”. programming mode or DLMS/COSEM Data format IEC62056-21/IEC1107: 1 start bit. CewePrometer User Manual Public . Visible ambient light (daylight. Port #2 1200–19200 bps Configure the Ethernet adapter Search the www. This position is attained when the optical head is centred over the optical port with the cable hanging straight down. 1 stop bit. avoid installing the meter where it can be subjected to strong ambient light when communications via the optical port are required. 1 stop bit. even parity Baud rate 300–9600 bps Ethernet Communication Port The Ethernet communication port is used from the PC with a virtual com port that tunnels serial protocols (IEC62056-21/IEC1107 or DLMS/COSEM) over IP.

By default. Public BGX501-856-R02. Click external browser to open a www-window. CewePrometer User Manual Page 63 of 80 . highlight it and click on “Web configuration”.When Device Installer has found the device on your LAN. Configure the ‘Serial Settings’ screen as below. the baud rate in the CewePrometer is set at 9600 baud. Just click OK when the question about password is given. The device does not have any password. If you choose to set it to another you also need to change it for the appropriate port via CeweConfig software.

click the ‘Apply Settings’ tag on the left menu. To be able to communicate over the LAN you need to install the Lantronix Redirector software. Page 64 of 80 BGX501-856-R02. Click ‘Add IP’ and type in the IP for the XPort. The device needs to get the correct IP on your network.lantronix. Check that it’s as on the picture below. Parity=Even and Stop Bits =1 DLMS/COSEM Data bits=8.1/ There are newer versions of this software but this is needed to work with the functions within CeweConfig. To save the new configuration.1. Select an appropriate COM port from the drop-down list. The following steps are also described in detail in the included Help section of the program. Install a virtual comport The CeweConfig software needs a comport to be assigned to the CewePrometer. Observe: IEC62056-21(IEC 1107) Data bits =7. CewePrometer User Manual Public . Download the Redirector file from ftp://ftp. Start the program ‘Configuration’ on your menu.Click OK on the bottom of the page. Also type in 10001 for the TCPPort.0. Parity=No and Stop Bits=1 Change to screen ‘Connection’.com/pub/old_rel/redirector/3.

Launch CeweConfig and connect to the meter on the appropriate Com port. Also check that ‘reconnect limit’ is set to 0. Specifications Cable: Unshielded Twisted Pair (UTP) in categories 1 to 5e. Public BGX501-856-R02. ‘Server Reconnect’ and ‘Raw Mode’. Click ‘Save and ‘close’. CewePrometer User Manual Page 65 of 80 .Click ‘Port Settings’ and set the boxes ‘Timeout reconnect’.

Appendix D – Module Block Diagram Communications between modules The intelligent function modules that make up the CewePrometer are autonomous units with their own microcontrollers and own firmware. information transfer is via a CAN bus. Page 66 of 80 BGX501-856-R02. primarily in motor vehicles. For internal communications. and has high transfer reliability and error detection. This bus is designed for reliable operation in harsh electrical environments. These are connected in an internal network through an internal bus. CewePrometer User Manual Public .

it will be set back to standard time automatically at the approaching time change.0) be read via the meter's display. If you set the meter to use DST during the summer period.2 kWh 2005-03-28 03:30 3602.4 kWh 2005-03-28 03:00 3523. the clock jumps one hour.5 kWh Change from daylight savings to standard time 2005-10-31 02:30 Public 3345. CewePrometer User Manual Page 67 of 80 . If the meter time is set to standard time before the change. What happens if more than one input is used for clock synchronisation? Several inputs can be used simultaneously to receive synchronising pulses even if this is unlikely.2. What happens if one set the time in the meter to that hour? Will there be four or two occasions of that hour? The meter assumes that the time is in DST if it is during that period and assumes it is in normal time when it is in that period. The information is accessible via CeweConfig and via the communication protocol.Appendix E – Frequently Asked Questions Display Sequences Which information is not available via the CewePrometer's display? Graphs for discrete harmonics. it will not be affected at the approaching time change. will the meter clock then change time to DST? No. The meter will not shift twice. This information cannot presently (meter version 1. What happens if the meter time is set within an hour before the change from daylight savings time to standard time? If the meter time is set to daylight savings time before the change. the meter will always have the same time regardless when you set DST. How are logged values affected by the daylight savings time change? According to the example: Change from standard to daylight savings time 2005-03-28 01:30 3467.4 kWh BGX501-856-R02. logged values and counters for short sags and swells. vector graphs on 2-element meters. When the DST ends the clock will move backwards one hour. When summer time starts. Meter Clock What happens if a new successive adjustment is made when one is already underway? The current adjustment will be stopped and the new begun. What happens if the user sets the meter to a time within that hour? The mter will ignore the new time because that hour “does not exist”.

If it were to be allowed.2005-10-31 02:00 3756. Page 68 of 80 BGX501-856-R02. this is purely hypothetical. What are the possible consequences of adjusting the meter clock immediately? Because CeweConfig does not permit the clock to be adjusted immediately without simultaneously resetting the logging memory. In the worst event.8 kWh 2005-10-31 03:00 4583. It the clock is adjusted backward over one or more interval limits. there will be empty spaces in the logging memory and values will be lacking for one or more intervals.1 kWh Logged values during daylight savings time are labelled with the flag “S”. one or more values will exist with the same time stamps. CewePrometer User Manual Public . this can result in data read from the meter not matching the expected period. S means that the timestamp is in DST. then if the clock is adjusted forward over one or more interval limits.7 kWh 2005-10-31 02:30 4132.

denoted Uisg.h in IEC 61000-4-7. That standard shall be used to determine a 10/12-cycle gapless harmonic subgroup measurement. I1 The current’s first harmonic component (fundamental) specified as peak value. Power Harmonic component power The calculations below are for active power. CewePrometer User Manual Page 69 of 80 . for class A.Appendix F – Calculation Principles Current and Voltage RMS values for current and voltage are calculated as the root of the sum of squares for the harmonic components up to the 31th harmonic. the calculations for reactive are identical except for that cosfunctions are replaced with sin-functions. Pn Total active power is calculated for harmonic component n. has doubled frequency compared to the first harmonic. P1n Active power in L1 is calculated for harmonic component n. I2 is not measured but is calculated for monitoring purposes. n Phase angle between harmonic component U1n and I1n 3-element meter: P1n Public U 1n I1n cos( n ) BGX501-856-R02.. I 21 ( I11 I 31 cos(I11 p I 31 p))2 ( I 3 sin( I11 p I 31 p))2 Voltage unbalance Class A The basic measurement of voltage harmonics. in the 2-element meter. This calculation is only made in the 3-element meter. is defined in IEC 61000-4-7 class I. It is calculated from the current’s fundamental vectors. I2 The current’s second harmonic component specified as peak value. ( I 12 I RMS I 22 . the line to line voltage is measured. (U112 U 212 U121 2 U11 U 21 cos(U11 p U 21 p) Calculated I2 In the 2-element meter. I 21 Current I2’s fundamental harmonic.I 312 ) 2 Calculated Line to Line voltage Line to Line voltage is calculated from the phase voltages’ fundamental vectors..

Q and S) over time. Quadrant I: phase angle 1–90 Quadrant II: phase angle 90–180 Quadrant III: phase angle -180–(-90) Quadrant IV: phase angle (-90)–0 Active energy Active energy is calculated for import and export. Active energy import: quadrant I and IV Page 70 of 80 BGX501-856-R02. The direction is controlled by the sign for active power (+ import. P Total active power P1 Active power in L1 Q Total reactive power Q1 Reactive power in L1 P P1 P2 P3 Q Q1 Q2 Q3 For 2-element meters. two elements are added instead of three.2-element meter: For 2-element meters. 1n Phase angle between harmonic component U12 n and I1n 2n Phase angle between harmonic component U 32 n and I 3 n Pn U 12 n I1n cos( 1n ) U 32 n I 3n cos( 2 n ) Active and reactive power Active and reactive power is calculated as the sum of harmonic component power up to 31st harmonic. where negative power represents export direction and positive represents import direction. Apparent power S Total apparent power S1 Apparent power in L1 S S1 P2 Q2 P12 Q12 Energy Energy is calculated by integrating power (P. The calculation is made with plus and minus signs. Definition of quadrants The term phase angle is described under its own heading below. only the total power is calculated in each harmonic component. CewePrometer User Manual Public . – export).

.Active energy export: quadrant II and III Reactive energy Reactive energy is calculated for four quadrants. Reactive energy import: quadrant I and II Active energy export: quadrant III and IV Reactive energy inductive: quadrant I and III Reactive energy capacitive: quadrant II and IV Apparent energy Apparent energy is calculated for import and export....g. CewePrometer User Manual Page 71 of 80 . apparent energy is registered for the direction that the active energy has during the same period. Phase angle values specified between –180 and 180 . The calculation is made in the same ways for current and voltage. Phase angle ( L1) U1 p I1 p Phase angle for an element is calculated from the fundamental phase angles.I n2 1 100% Where I 1 … I n are the current’s harmonic components. THD Total harmonic distortion THDeur I 22 I 32 .I n2 I12 I 22 . (Tot ) arctan( P1 fund / Q1 fund ) Total phase angle is calculated from fundamental power. The direction is controlled by the sign for active power. Apparent energy import: quadrant I and IV Apparent energy export: quadrant II and III Power Factor pf ( L1) P1/ S1 pf (Tot) P/ S The power factor is calculated without signs and is thus always positive. Public BGX501-856-R02.. The quadrant is controlled by the sign for active and reactive power (e. active power >= 0 and reactive power >= 0 corresponding to quadrant I).

Iron loss FeLoss Active iron loss as percent of nominal power. Power transformer losses Power transformer losses consist of copper and iron losses. CewePrometer User Manual Public . inom Nominal current. i Phase current. and as error in minutes (one-sixtieth of a degree) for phase angle. P1 Compensated power. P1meas Measured power. P1 P1meas (i / inom ) 2 CuLoss Nom Corresponding calculations made for active and reactive power. They are expressed as percentages of nominal power.Transformer Compensations Instrument transformer compensations Instrument transformer compensations are specified as error in percent for amplitude. Nom Nominal power per phase P1 P1meas FeLoss Nom Copper loss CuLoss Active copper loss as percent of nominal power. line to line voltages. AmpErr Amplitude error as percent PhaseErr Phase angle error in minutes u meas Measured voltage u Compensated voltage Amplitude compensation u u meas /(1 AmpErr ) Phase angle compensation up upmeas PhaseErr In 3-element meters. The same calculation is used for all currents and voltages. Definition of phase order Correct phase order (123) corresponds to phase position: U1 p Phase position for U1 U1p 0 Page 72 of 80 BGX501-856-R02. One value is specified for active loss and one for reactive. phase voltages are compensated and in 2-element meters. These errors can be specified separately for all voltages and currents.

Public BGX501-856-R02.U2p 120 U 3p 120 The same system is represented graphically below. The vectors rotate in an anti-clockwise direction. CewePrometer User Manual Page 73 of 80 .

current/voltage Terminal body PPO + 10 % GF V0 Terminals Brass Screws Steel Page 74 of 80 BGX501-856-R02. chromated Side plates Stainless steel sheet Top & bottom plates Stainless steel sheet Handle Steel. chrome plated Plastic parts Inner window Polycarbonate V0 Outer window Polycarbonate V0 Side pieces Polycarbonate/ABS V0 Battery cover Polycarbonate/ABS V0 CewePrometer-W Enclosure Bottom plate Polycarbonate/ABS V0 Meter cover Polycarbonate/ABS V0 Inner window Polycarbonate V0 Outer window Polycarbonate V0 Battery cover Polycarbonate/ABS V0 Terminal cover Polycarbonate/ABS V0 Connection terminal. chromated Rear panel Steel sheet.Appendix G – Material Declaration CewePrometer-R Enclosure Front plate Steel sheet. CewePrometer User Manual Public . galvanised. galvanised.

5s Auxiliary power CewePrometer-W Internal auxiliary voltage/ Self Powered Separate auxiliary voltage Uaux 40 – 276 VAC/DC Power Consumption Typically 6-8 VA Max 14 VA (With additional communication module) CewePrometer-R Power Consumption 40 – 276 VAC/DC Single supply 2 x 40 – 276 VAC/DC Dual supply Typically 6-8 VA Max 14 VA (With additional communication module) Accuracy CewePrometer-W Public Class 0.1% of In Voltage circuit Measuring voltage (Un) 3-wire system: 3x100–240 V 4-wire system: 3x57/99–240/415 V Measuring range 80% .7 V 17 mVA/phase at 120 V 67 mVA/phase at 240 V Max overload voltage 1. 10xIn during 10s. IEC 62053-23 WARNING: Live parts inside meter cover. 40xIn during 1s Starting current <0.10 A configurable Measuring range 1 – 1000% of In Burden 0.2s. 1s BGX501-856-R02. 0.5 % Burden 5 mVA/phase at 57.5s. IEC 62053-22.7 mVA/phase at 1 A 0. 2xUn 0.Appendix H – Connection and General Details Safety Isolation voltage according to IEC 62052-11.Un – 115% Frequency range 50 Hz or 60 Hz +/.03 VA/phase at 5 A Max overload current 2xIn continuously. Always disconnect all wires carrying dangerous voltages before opening the meter.3xUn continuously. Current circuit Measurement current (In) 1. CewePrometer User Manual Page 75 of 80 .

+70°C Storage temperature range -40°C .+80°C Temperature coefficient <0.2s. 0.CewePrometer-R Class 0.5s Temperature range Working temperature range -20°C .2 A. 110 V AC/DC (varistor protected) Digital inputs Type Optical switch Voltage (AC or DC) 48–220 V Incoming resistance 20k ohm Page 76 of 80 BGX501-856-R02. bi-directional) Relay performance 0. CewePrometer User Manual Public .3%/10°C Protection Class CewePrometer-W IP51 according to IEC529 CewePrometer-R IP51 according to IEC529 Humidity Non Condensing Mounting Arrangement CewePrometer-W Wall or Panel Mounted/ Indoor or Closed Location CewePrometer-R Rack Mounted Mechanical Environment As per IEC standard & Category “M1” as per EN standard Vibration and Shock Electromagnetic Environment As per IEC standard & Category “E1 & E2” as per EN standard Digital outputs Type Solid-state relay (MOSFET.+55°C Limit temperature range -40°C .

2. Class 0.5S “Alternating current static watt-hour meters for active energy” EN62052-11:2003 and 62053-23:2003 Class 2 “Alternating current static var-hour meters for reactive energy” Tests have also been done in part for the following standards: EN61038:1996 Time switches for tariff and load control.UK Compliance with Code of Practise 1.Norway Certificate no. 999. CewePrometer-W Electronic watt-hour and var-hour meter Performed by Ofgem . CewePrometer-W Electronic watt-hour and var-hour meter. CewePrometer-R Electronic watt-hour and var-hour meter. 4 February 2013 Public BGX501-856-R02. 3 &5 CewePrometer-R and CewePrometer-W Performed by Justervesenet . 22 00 05. CewePrometer-R and W Electronic watt-hour and var-hour meter Performed by BRML . 5 march 2012 Performed by METAS . EC2 594.UK Certificate no. Class 0. CewePrometer User Manual Page 77 of 80 .5S Performed by SGS .Switzerland Certificate no. 212/23. 08/2005. 22 00 04. PTB. 0. 2. 983.Romania Certificate no.3-4054853. 0. Certificates: SP .2S.Appendix I – Approvals and Certificates Performed by the SP.2005 Performed by PTB . Technical Re-search Institute of Sweden SP Box 857 S-501 15 BORÅS SWEDEN To the following standards: EN62052-11:2003 and 62053-22:2003 class 0. CewePrometer-R Electronic watt-hour and var-hour meter Certificate no.5S.09.Sweden Certificate no.2S and 0.2S. 1 Certificate no.Germany Certificate no. Applicable parts according to accuracy requirements for the real time clock.

CewePrometer User Manual Public .Appendix J – Cewe Config settings Startup parameters Adding a combination of arguments from the list below will pass this on to CeweConfig at startup.e a short cut to CeweConfig with the arguments. can connect directly to the meter. i. Argument -d Devicetype [modem|serialPort|opticalPort] -b Baudrate -p Port -n Phonenumber -w Password -s Serialnumber -t Trace Page 78 of 80 BGX501-856-R02.

CewePrometer User Manual Page 79 of 80 .Notes Public BGX501-856-R02.

Cewe Instrument AB Box 1006. SE 611 29 Nyköping Sweden t: +46 155 775 00 f: +46 155 775 97 .