Product Manual LZQJ PHB E 3.10

Edition: 09.04.2008 LZQJ-PHB-E-3.10

Product manual for the 4-Quadrant-/ Combi meter LZQJ in accordance with VDEW-Specifications 2.1 Installation I Description I Operation instructions

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All of the contents published in this manual are copyright. Translating, reprinting, duplicating and also saving of this manual in data processors requires the exclusive permission from EMH.

All of the trademarks named in this manual are the property of EMH Elektrizitätszähler GmbH & Co KG or the respective title holders.

EMH Elektrizitätszähler GmbH & Co KG is certified accord. to DIN EN ISO 9001:2000 and continually endeavours to improve their products.

The contents of this manual and the technical specifications can be extended, altered or removed without prior notice.

The description of the product specifications in this manual does not represent part of a contract. © 2008 EMH Elektrizitätszähler GmbH & Co KG. All rights reserved. If you have any questions or inspirations please contact us at: EMH Elektrizitätszähler GmbH & Co KG

Südring 5 19243 Wittenburg GERMANY

Tel.: +49 38852 645-0 Fax.: +49 38852 645-129

E-mail: [email protected] Web: www.emh-meter.de

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Table of contents

1 Prologue .................................................................................................................................. 9 1.1 General ..................................................................................................................................... 9 1.2 Quoted standards and other documents................................................................................. 10

2 Tips on mounting and installation....................................................................................... 12 2.1 General safety tips .................................................................................................................. 12 2.2 Maintenance- and guarantee tips............................................................................................ 12 2.3 Mounting ................................................................................................................................. 13 2.4 Installation............................................................................................................................... 14 2.4.1 Direct connected meter ........................................................................................................... 14 2.4.2 Transformer operated meter ................................................................................................... 14 2.5 Terminal blocks....................................................................................................................... 16 2.5.1 Transformer operated meter ................................................................................................... 16 2.5.2 Direct connected meter 60 A................................................................................................... 16 2.5.3 Direct connected meter 100 A................................................................................................. 17 2.6 Circuit diagrams ...................................................................................................................... 18

3 General device description .................................................................................................. 21 3.1 Meter layout ............................................................................................................................ 21 3.2 Technical data......................................................................................................................... 22 3.3 Housing-, operation- and display elements ............................................................................. 23 3.3.1 Display .................................................................................................................................... 24 3.3.2 Test-LEDs............................................................................................................................... 26 3.3.3 Call-up and reset button.......................................................................................................... 26 3.3.4 Optical call-up sensor ............................................................................................................. 26 3.3.5 Parameterisation button.......................................................................................................... 26 3.3.6 Optical data interface D0 ........................................................................................................ 26 3.3.7 Meter cover ............................................................................................................................. 26 3.3.8 Sealable terminal cover .......................................................................................................... 27 3.3.9 Nameplate............................................................................................................................... 27 3.3.10 Transformer nameplate........................................................................................................... 27 3.4 Modules .................................................................................................................................. 28 3.4.1 Voltage supply ........................................................................................................................ 28 3.4.1.1 Direct supply ........................................................................................................................... 28 3.4.1.2 Auxiliary voltage...................................................................................................................... 29 3.4.2 Measuring device.................................................................................................................... 30 3.4.2.1 Measuring principle................................................................................................................. 30 3.4.2.1.1 Voltage measurement............................................................................................................. 30 3.4.2.1.2 Current measurement ............................................................................................................. 30 3.4.2.1.3 Data protection........................................................................................................................ 30 3.4.3 Tariff switching clock............................................................................................................... 31 3.4.4 Ripple control receiver (RCR) ................................................................................................. 34 3.4.5 Data interfaces........................................................................................................................ 35 3.4.5.1 Optical data interface D0 ........................................................................................................ 35 3.4.5.2 Electrical interface................................................................................................................... 36 3.4.5.2.1 Electrical interface RS485....................................................................................................... 37 3.4.5.2.2 Electrical interface RS232....................................................................................................... 38 3.4.5.2.3 Electrical interface CL0 (CS)................................................................................................... 39 3.4.5.3 Optical fibre interface LLS....................................................................................................... 40 3.4.6 In- and outputs ........................................................................................................................ 41 3.4.6.1 Inputs ...................................................................................................................................... 41 3.4.6.2 Outputs ................................................................................................................................... 41

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4 Firmware................................................................................................................................ 42 4.1 Tariff device ............................................................................................................................ 43 4.1.1 Energy- and maximum demand tariffs .................................................................................... 43 4.1.1.1 Maximum demand metering.................................................................................................... 43 4.1.1.1.1 Block measuring period .......................................................................................................... 43 4.1.1.1.2 Sliding measuring period ........................................................................................................ 44 4.1.1.2 De-coupling time te.................................................................................................................. 46 4.1.1.3 Reset (cumulation).................................................................................................................. 46 4.1.1.4 Load profile ............................................................................................................................. 48 4.1.1.4.1 General ................................................................................................................................... 48 4.1.1.4.2 Standard load profile P.01 ...................................................................................................... 48

5 Display- and readout lists .................................................................................................... 50 5.1 Display lists ............................................................................................................................. 50 5.2 Call-up of the display lists / control of the display.................................................................... 51 5.2.1 Brief instructions on the operation of display........................................................................... 51 5.2.2 Operation display (scrolling list) .............................................................................................. 52 5.2.3 Display test ............................................................................................................................. 52 5.2.4 Menu “Call-up button“ ............................................................................................................. 53 5.2.5 Call-up list (menu option “Std-dAtA”) ...................................................................................... 54 5.2.6 Load profile list, standard LP (menu option “P.01”)................................................................. 55 5.2.7 Certification relevant log book (menu option “P.99”) ............................................................... 56 5.2.8 Menu “Reset button” ............................................................................................................... 58 5.2.9 Set list (Menu option “Set”) ..................................................................................................... 59 5.2.10 Info list (Menu option “InFO-dAtA”) ......................................................................................... 60 5.2.11 Test list (Menu option “tESt”) .................................................................................................. 61 5.3 Readout lists ........................................................................................................................... 62

6 Special features .................................................................................................................... 63 6.1 Manipulation recognition ......................................................................................................... 63 6.1.1 Principle functions................................................................................................................... 63 6.1.2 Output possibilities.................................................................................................................. 63 6.1.2.1 Cursor in the display ............................................................................................................... 63 6.1.2.2 Register entry.......................................................................................................................... 64 6.1.2.3 Activation of an alarm contact ................................................................................................. 64 6.1.2.4 Log book entry ........................................................................................................................ 64 6.1.2.4.1 User log book P.200 ............................................................................................................... 64 6.1.2.4.2 Event log book P.210.............................................................................................................. 65 6.2 Overload monitoring................................................................................................................ 66 6.3 Installation check register C.86.0 ............................................................................................ 67 6.4 Network analysis..................................................................................................................... 68 6.4.1 User load profile P.02 ............................................................................................................. 68 6.4.2 Voltage quality register C.86.1 ................................................................................................ 70 6.5 Consumption check register C.86.2 ........................................................................................ 71 6.6 Log boks ................................................................................................................................. 71 6.6.1 User log book P.200 ............................................................................................................... 71 6.6.2 Event log book P.210.............................................................................................................. 71 6.6.3 Event log book P.211.............................................................................................................. 72 6.7 Recording external measuring variables................................................................................. 72

7 Certification relevant tests ................................................................................................... 73 7.1 Certification- and test mode .................................................................................................... 73 7.2 Test load ................................................................................................................................. 73

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8 Appendix................................................................................................................................ 74 8.1 OBIS (Object-Identification-System) ....................................................................................... 74 8.2 Standard impulse constants.................................................................................................... 78 8.3 Error register ........................................................................................................................... 79 8.3.1 Explanation of the individual error flags .................................................................................. 79 8.3.2 Clearing the error register ....................................................................................................... 79 8.4 Software.................................................................................................................................. 80 8.4.1 EMH-COM .............................................................................................................................. 80 8.4.2 EMH-COMBI-MASTER 2000.................................................................................................. 80 8.4.3 EMH-Mobile ............................................................................................................................ 81 8.5 Basic operation of the LZQJ.................................................................................................... 82 8.5.1 Overview................................................................................................................................. 82 8.5.2 Possibilities of meter communication ...................................................................................... 83 8.5.2.1 Communication via optical interface ....................................................................................... 83 8.5.2.2 Communication via electrical interface.................................................................................... 83 8.5.3 Basic settings before communication...................................................................................... 84 8.5.3.1 General settings...................................................................................................................... 84 8.5.3.2 Modem settings....................................................................................................................... 85 8.5.3.3 Setting date and time .............................................................................................................. 86 8.5.3.4 Setting baud rate..................................................................................................................... 86 8.5.4 Reading out the meter ............................................................................................................ 87 8.5.4.1 Reading out the tables ............................................................................................................ 87 8.5.4.2 Reading out load profile data .................................................................................................. 88 8.5.4.3 Reading out operation log book P.98...................................................................................... 89 8.5.4.4 Reading out certification relevant log book P.99 ..................................................................... 89 8.5.4.5 Reading out the user log book P.200...................................................................................... 90 8.5.4.6 Reading out event log book P.210 .......................................................................................... 90 8.5.4.7 Reading out event log book P.211 .......................................................................................... 90 8.5.4.8 Commenting readout tables .................................................................................................... 90 8.5.4.9 Converting load profiles .......................................................................................................... 91 8.5.5 Processing the readout data ................................................................................................... 93 8.5.5.1 Opening files ........................................................................................................................... 93 8.5.5.2 Saving files.............................................................................................................................. 93 8.5.5.3 Transferring files ..................................................................................................................... 93 8.5.5.4 Executing read- and write commands..................................................................................... 94 8.5.5.5 Graphic display of load profiles ............................................................................................... 94 8.5.5.6 Export of load profile data ....................................................................................................... 97 8.6 EC Declaration of conformity ................................................................................................ 101

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Table index

Table 1: Standard functions and options................................................................................................. 9 Table 2: Apparent power consumption ................................................................................................. 29 Table 3: Specification of RS485 interface ............................................................................................. 37 Table 4: Specification of RS232 interface ............................................................................................. 38 Table 5: Specification of CL0 interface ................................................................................................. 39 Table 6: Specification of optical fibre interface...................................................................................... 40 Table 7: Specification of inputs ............................................................................................................. 41 Table 8: Specification of outputs........................................................................................................... 41 Table 9: Example - Inhibition times for a renewed reset ....................................................................... 47 Table 10: Memory depths ....................................................................................................................... 48 Table 11: Operation display .................................................................................................................... 52 Table 12: Test mode display................................................................................................................... 52 Table 13: Menu “Call-up button” ............................................................................................................. 53 Table 14: Call-up list ............................................................................................................................... 54 Table 15: Load profile list........................................................................................................................ 55 Table 16: Certification relevant log book................................................................................................. 57 Table 17: Menu “Reset button” ............................................................................................................... 58 Table 18: Set list ..................................................................................................................................... 59 Table 19: Info list .................................................................................................................................... 60 Table 20: Test list ................................................................................................................................... 61 Table 21: Memory depths ....................................................................................................................... 69 Table 22: OBIS-codes............................................................................................................................. 77 Table 23: Standard impulse constants with secondary meters ............................................................... 78 Table 24: Error examples........................................................................................................................ 79

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Figure index

Figure 1: Dimensions ............................................................................................................................. 13 Figure 2: Back-up fuses with direct connected meters........................................................................... 14 Figure 3: Back-up fuse with transformer operated meters ..................................................................... 14 Figure 4: Terminal block for transformer operated meters ..................................................................... 16 Figure 5: Terminal block for direct connected meters 60 A .................................................................... 16 Figure 6: Terminal block for direct connected meters 100 A .................................................................. 17 Figure 7: Circuit diagram - Polyphase meter.......................................................................................... 18 Figure 8: Circuit diagram - Transformer operated meter ........................................................................ 18 Figure 9: Circuit diagram - Transformer operated meter ........................................................................ 19 Figure 10: Circuit diagram - Transformer operated meter; 4020 measuring record type M1.................... 19 Figure 11: Circuit diagram - Transformer operated meter; 4020 measuring record type M6.................... 20 Figure 12: Circuit diagram - Transformer operated meter; 3020 measuring record types M7 and M8..... 20 Figure 13: Meter layout ............................................................................................................................ 21 Figure 14: Technical data......................................................................................................................... 22 Figure 15: Meter elements ....................................................................................................................... 23 Figure 16: VDEW-Display ........................................................................................................................ 24 Figure 17: Transformer nameplate........................................................................................................... 27 Figure 18: Definition of quadrants ............................................................................................................ 30 Figure 19: Optical communication adapter OKK ...................................................................................... 35 Figure 20: Application example of electrical interfaces ............................................................................ 36 Figure 21: Connection diagram - RS485.................................................................................................. 37 Figure 22: Connection diagram - RS485 with GND ................................................................................. 37 Figure 23: RS485-two-wire bus system ................................................................................................... 37 Figure 24: Connection diagram - RS232.................................................................................................. 38 Figure 25: Connection diagram - CL0 ...................................................................................................... 39 Figure 26: Connection diagram - LLS ...................................................................................................... 40 Figure 27: Connection plan - LLS ............................................................................................................ 40 Figure 28: Connection plan ...................................................................................................................... 41 Figure 29: Formation of the maximum demand with a block measuring period ....................................... 43 Figure 30: Formation of the maximum demand with a sliding measuring period ..................................... 45 Figure 31: Diagram of standard load profile ............................................................................................. 49 Figure 32: Operation of the display .......................................................................................................... 50 Figure 33: Output of manipulations .......................................................................................................... 63 Figure 34: Diagram - Overconsumption ................................................................................................... 66 Figure 35: Diagram of additional load profile............................................................................................ 68 Figure 36: Application plan - recording load profiles form other media .................................................... 72 Figure 37: Diagram - Recording of load profiles from several meters ...................................................... 72 Figure 38: EMH-Mobile ............................................................................................................................ 81 Figure 39: EMH-Mobile - Table 1 ............................................................................................................. 81 Figure 40: EMH-Mobile - Installation check.............................................................................................. 81

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Abbreviations

A Active energy +A Positive active energy (customer imports from utility -A Negative active energy (customer exports to utility)AA Active energy, pulse output signal +AA Positive Active energy, pulse output signal -AA Negative Active energy, pulse output signal BV Reactive energy, time integral 1 accord. to OBIS Cl. Accuracy class CS Electrical interface accord. to IEC 62056-21 D0 Optical interface accord. to IEC 62056-21 DIN Deutsches Institut für Normung e.V. (German Institute for standards) DLMS Device Language Message Specification EN European standards ERA Energy direction output ERA+A Energy direction output for active energy ERA+R Energy direction output for reactive energy EVU Utility IEC International Electromechanical Commission Imp. Impulse Imp./kWh Impulse per kWh Imp./kvarh Impulse per kvarh L1, L2, L3 External conductor LC Liquid Crystal LCD Liquid Crystal Display LED Light Emitting Diode LLS Optical fibre interface MAn Output signal for maximum demand tariff n M Maximum demand MKA Alarm contact output Mn Maximum demand tariff n MP Measuring period (only for maximum demand measuring) MPA Measuring period output MPE Measuring period input MR Maximum demand reset, MRA Output maximum demand reset MRE Input maximum demand reset MSB Most Significant Bit MZA Output maximum demand occasionally MZE Input maximum demand occasionally N Neutral conductor OBIS Object-Identification-System P Active power +P Positive active power (customer imports from utility) -P Negative active power (customer exports to utility) PTB PTB (German certified body) Q Reactive power +Q Positive reactive power -Q Negative reactive power Q1 Positive reactive power in ‘Quadrant I’ Q2 Positive reactive power in Quadrant II’ Q3 Negative reactive power in ‘Quadrant III’ Q4 Negative reactive power in ‘Quadrant IV’

R Reactive energy +R Positive reactive energy -R Negative reactive energy R1 Positive reactive energy in ‘Quadrant I’ R2 Positive reactive energy in ‘Quadrant II’ R3 Negative reactive energy in ‘Quadrant III’ R4 Negative reactive energy in ‘Quadrant IV’ RA Output impulse constants RAB Output impulse constants for reactive energy RAW Output impulse constants for active energy RL Test impulse constants RLB Test impulse constants for reactive energy RLW Test impulse constants for active energy RA Reactive energy, impulse output signal +RA Positive reactive energy, impulse output signal -RA Negative reactive energy, impulse output signal RA1 Reactive energy in ‘Quadrant I’, impulse output signal RA2 Reactive energy in ‘Quadrant II’, impulse output signal RA3 Reactive energy in ‘Quadrant III’, impulse output signal RA4 Reactive energy in ‘Quadrant IV’, impulse output signal RP Registration period (only for load profile) RS Display for reset, with one or no terminals RS1 Display for reset, Signal a RS2 Display for reset, Signal b RSE Ripple Control Receiver (RCR) RTX Receiver / Transmitter, bi-directional connection, see CS RX Receiver-connection, see CS S0 Interface accord. to DIN 43 864 SEZ Standard load profile meter TAn Output signal for energy tariffs n te De-coupling time TEn Input signal for energy tariffs n tm Measuring period duration Tn Energy tariffs n TX Sender-connection, see CS Un Nominal voltage (see DIN EN 61 036) Us Control voltage UTC Universal Time Co-ordinated WV Active energy, time integral 1 accord. to OBIS ZST Time stamp (see OBIS) ZSTs Time stamp with season recognition (OBIS)

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1 Prologue 1.1 General In this manual all versions of the LZQJ meter are described. Please note that the meters can be designed differently regarding for example configuration, interfaces, in-/outputs etc. It is therefore possible that meter features are described in this manual which do not apply to the meter(s) used by you. The following table shows which functions are included in the standard configuration and which are available as an option.

Function Standard Option

Scrolling list

Call-up list

Set list

Test list

Info list

Table 1, 2 and service table

Table 3

Ripple control receiver

Performance monitoring

Manipulation recognition

Standard load profile P.01

User load profile P.02

Operation log book P.98

Certification relevant log book P.99

User log book P.200

Event log book P.210

Event log book P.211

Installation check

Settable pulse constants

Settable transformer factors

Analysis of the network quality

2nd electrical interface

Optical fibre interface

DCF-evaluation Table 1: Standard functions and options

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1.2 Quoted standards and other documents

VDEW-Specifications 2.1 Electronic Load profile meter

DIN EN 50160 Voltage characteristics of electricity supplied by public distribution systems

IEC 62052-11 Electricity metering equipment (AC) - General requirements, tests and test conditions - Part 11: Metering equipment

IEC 62053-21 Electricity metering equipment (a.c.) - Particular Requirements - Part 21: Static meters for active energy (classes 1 and 2)

IEC 62053-22 Electricity metering equipment (a.c.) - Particular requirements - Part 22: Static meters for active energy (classes 0.2 S and 0.5 S)

IEC 62053-23 Electricity metering equipment (a.c.) - Particular requirements - Part 23: Static meters for reactive energy (classes 2 and 3)

IEC 62056-21 Electricity meter - Data exchange for meter reading, tariff and load control - Part 21: Direct local data exchange

IEC 62056-46 Electricity metering - Data exchange for meter reading, tariff and load control - Part 46: Data link layer using HDLC protocol

IEC 62056-53 Electricity metering - Data exchange for meter reading, tariff and load control - Part 53: COSEM application layer

IEC 62056-61 Electricity metering - Data exchange for meter reading, tariff and load control - Part 61: Object Identification System (OBIS)

IEC 62056-62 Electricity metering - Data exchange for meter reading, tariff and load control - Part 62: Interface classes

DIN 43856 Electricity meters, tariff time switches and ripple control receivers; connection diagrams, terminal marking, circuit diagrams

DIN 43857- 2 Watt-hour meters in moulded insulation case without instrument transformers, up to 60A rated maximum current; principal dimensions for polyphase meters

DIN 43857- 4 Watt-hour meters in moulded insulation case without instrument transformers, up to 60A rated maximum current; principal dimensions for meter terminal cover for polyphase meters

DIN EN 50470-1 Electricity metering equipment (a.c.) - Part 1: General requirements, tests and test conditions - Metering equipment (class indexes A, B and C)

DIN EN 50470-3 Electricity metering equipment (a.c.) - Part 3: Particular requirements - Static meters for active energy (class indexes A, B and C)

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IEC 61000 Electromagnetic compatibility (EMC)

IEC 60529 Degrees of protection provided by enclosures (IP code)

DIN 66348-1 Interfaces and basic data link control procedures for serial measurement data communication; start-stop-transmission, point-to-point connection

ITU-T V.11 Electrical characteristics for balanced double-current interchange circuits operating at data signaling rates up to 10 Mbit/s

TIA/EIA-485 Electrical characteristics of generators and receivers for use in balanced digital multipoint systems

ITU-T V.24 List of definitions for interchange circuits between data terminal equipment (DTE) and data circuit terminating equipment (DCE).

ITU-T V.28 Electrical characteristics for unbalanced double-current interchange circuits

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2 Tips on mounting and installation 2.1 General safety tips The meters are to be used exclusively for measuring electrical energy and must only be operated within the specified technical data (see nameplate).

When installing or changing the meter, the conductor for which the meter is connected must be de-energised. For this purpose only the provided terminals must be used. Contact to parts under voltage is extremely dangerous; therefore the relevant back-up fuses are to be removed and stored so that other people cannot insert these unnoticed.

Before opening the meter, the secondary circuit to the current transformer must definitely be short circuited. The high voltage on the current transformer is extremely dangerous and destroys the current transformer.

With an incorrect installation of the meter, the S0 inputs can lead to mains voltage. Caution: danger!

The local standards, guidelines, regulations and instructions are to be obeyed. Only authorised, trained personnel are permitted to install the electricity meters.

2.2 Maintenance- and guarantee tips The meter is maintenance-free. With damages (e.g. caused by transportation or storage) no repairs may be carried out.

Once the meter has been opened, all warranty claims cease. This also applies if a defect can be traced back to external influences (e.g. lightning, fire, extreme temperature- and weather conditions, incorrect or careless use or treatment).

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2.3 Mounting Meters from the series LZQJ are suitable for wall mounting according to DIN 43857-2.

Figure 1: Dimensions

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2.4 Installation When connecting the meter it is very important to take notice of the circuit diagram which you can find on the inside of the terminal cover and also in the delivery documents. In chapter 2.6 Circuit diagrams on page 16 you can find examples of these.

2.4.1 Direct connected meter Meters for direct connection are to be protected with a back-up fuse of 63 A or resp. 100 A.

The incoming cable of phase L1 from the house connection leads to terminal 1 via a selective main protective conductor and then through the electric circuit of the measuring element to the consumer via terminal 3.

Figure 2: Back-up fuses with direct connected meters

2.4.2 Transformer operated meter Meters for transformer operation are to be protected with a back-up fuse of < 10 A in the voltage path.

Figure 3: Back-up fuse with transformer operated meters

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Installation check

After installation of the meter, it is possible to check if it has been connected correctly by means of the function “Installation check“ in the EMH-COM/COMBI-MASTER 2000. This function is not a standard part of the EMH-COM/COMBI-MASTER 2000 program, however, can be ordered as an additional module. Open “Readout“ > “Installation check“

The graphic installation display shows the current network behaviour. In the table the current values of phase L1, L2, L3 and also the sum of all phases are shown.

Further information can be found in the user manual EMH-COMBI-MASTER 2000.

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2.5 Terminal blocks 2.5.1 Transformer operated meter

Current terminals

Voltage terminals

Auxiliary terminals

Terminal dimensions B X H (d) mm 4.6 4.6

9-blocks: 3.2 x 3 12-blocks: 3

Maximum connection- cross section (mm²) 6 6 2.5

Maximum torques for terminals (Nm) 1.8 1.8 0.5

Head / thread size PZ1 / M4 PZ1 / M4 Slot / M3

Figure 4: Terminal block for transformer operated meters 2.5.2 Direct connected meter 60 A In normal operation the voltage bridges are closed and are only opened for testing the device!

Current terminals

Voltage- and auxiliary terminals

Terminal dimensions B X H (d) mm 6.5 3

Maximum connection- cross section (mm²) 16 2.5

Maximum torques for terminals (Nm) 2.7 0.5

Head / thread size PZ2 / M5 Slot / M3

Figure 5: Terminal block for direct connected meters 60 A

Voltage brigde

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2.5.3 Direct connected meter 100 A For testing the device the voltage path is interrupted by the path separator. With normal operation the path separator is removed.

Current terminals

Voltage- and auxiliary terminals

Terminal dimensions B X H (d) mm 9.5 3

Maximum connection- cross section (mm²) 35 2.5

Maximum torques for terminals (Nm) 3.1 0.5

Head / thread size PZ2 / M6 Slot / M3

Figure 6: Terminal block for direct connected meters 100 A

Path separator

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2.6 Circuit diagrams In this chapter you will find some examples of circuit diagrams in accordance with DIN 43856. When connecting a meter you must pay attention to the circuit diagram which can be found on the inside of the terminal cover or in the delivery documents. Polyphase meter for direct connection in four-wire systems

Figure 7: Circuit diagram - Polyphase meter Transformer operated meter for connection to current transformers in four-wire systems

Figure 8: Circuit diagram - Transformer operated meter

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Transformer operated meter for connection to current transformers in four-wire systems (symmetrical connection technique)

Figure 9: Circuit diagram - Transformer operated meter Transformer operated meter for connection to current- and voltage transformers in four-wire systems; 4020 measuring record type M11

Figure 10: Circuit diagram - Transformer operated meter; 4020 measuring record type M1

1 If meter neutral point is not connected, then measuring record type M2

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Transformer operated meter for connection to current- and voltage transformers in three-wire systems (Fake connection with 2 current transformers); 4020 measuring record type M6

Figure 11: Circuit diagram - Transformer operated meter; 4020 measuring record type M6 Transformer operated meter for connection to current- and voltage transformers in three-wire systems (Aron connection); 3020 measuring record types M7 and M8

Figure 12: Circuit diagram - Transformer operated meter; 3020 measuring record types M7 and M8

M7 M8

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3 General device description 3.1 Meter layout

Figure 13: Meter layout

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3.2 Technical data Voltage 4-wire meter 3x58/100 V...3x240/415 V (optional bis 3x400/690 V),

3x127/220 V…3x240/415 V 3- wire meter 3x100 V…3x415 V, 3x220 V…3x415 V 2- wire meter 1x58 V...1x240 V Current 5(60) A oder 10(100) A, 5II1 A Frequency 50 Hz, 60 Hz, 162/3 Hz Accuracy active energy Cl. 1, Cl. 2, Cl. 0.5 S, Cl. 0.2 S reactive energy Cl. 2, Cl. 3, 1% (Cl. 2), 0.5% (Cl. 2) Measuring types active energy +A, -A reactive energy +R, -R, R1, R2, R3, R4 others S, Ah, U²h, I²h Meter constants LED (Imp./kWh[kvarh]) 500…100 000 (depending on meter type) output (Imp./kWh[kvarh]) 250…50 000 (depending on meter type) configuration ability after certification by means of the certification relevant logbook Energy registers maximum number 32 tariff registers + 8 tariffless registers, each with 15 historical values Maximum registers maximum number 32 tariff registers + 8 tariffless registers, each with 15 historical values measuring period 1, 5, 10, 15, 30, 60 min, adjustable Load profile maximum number of channels 32 typical memory depth at 1 channel 300 days and 15 min registering period 1, 5, 10, 15, 30, 60 min, adjustable registering type power, energy, energy feed Real Time Clock accuracy within ± 5 ppm synchronisation via data interfaces, control input or DCF-module running reserve battery / capacitor > 20 years / > 10 days Ripple control receiver number of channels 6 telegrams all common telegrams Control inputs S0-input / system voltage

(in total max. 8 inputs possible) max. 2 / max. 7

Data retention time without voltage in the FLASH-ROM, at least 10 years Display version VDEW-display, 84 mm x 24 mm height of digits 8 mm alternative display alphanumerical display (4 x 20 characters), 70.4 mm x 20.8 mm height of digits 4 mm Operation mechanical buttons for operation of display and reset (sealable) optical sensor for operation of display Data interface optical data interface optical data interface D0 electrical data interface RS485, CL0 or RS232 data protocols IEC 62056-21 or DLMS maximum transmission rate 9600 baud (fixed or Mode C) Outputs maximum number 7 Opto-MOSFET max. 250 V AC/DC, 100 mA (make contact or break contact) S0-output max. 27 V DC, 27 mA (passive) relays max. 250 V AC/DC, 100 mA (max. 2 relays) Energy supply switched-mode power supply 3-phase mains buffering time > 500 ms Auxiliary voltage supply long-range 48…300 V AC/DC Power consumption voltage path per phase (Basic meter) with auxiliary voltage < 0.02 VA / < 0.01 W (3x58/100 V) without auxiliary voltage < 1.3 VA / < 0.8 W current path < 0.004 VA auxiliary voltage < 1.8 VA...< 2.9 VA EMV-characteristics isolation resistance 4 kV AC, 50 Hz, 1 min surge voltage 8 kV, impulse 1.2/50 μs, 2 Ω (measuring paths, auxiliary voltage) 6 kV, impulse 1.2/50 μs, 500 Ω (outputs: Opto-MOSFET, relays) resistance against HF-fields 30 V/m (under load) Temperature range operating / limit and storage -25°C...+55°C / -40°C...+70°C Relative humidity 95%, non-condensing acc. to IEC 62052-11, EN 50740-1 and IEC 60068-2-30 Housing dimensions / weight approx. 178 x 327 x 60 (W x H x D) mm, acc. to DIN 43857 / ca. 1.2 kg class of protection 2 degree of protection housing / terminals IP 51 / IP 31 housing material polycarbonate glass-fibre-reinforced, without halogen, recyclable fire characteristics acc. to IEC 62052-11 Further features measuring of instantaneous values, optical fibre interface, installation check,

certification relevant log book for meters with long-range power supply option manipulation recognition with opening of the meter- and terminal cover and

recognition of electromagnetic interference, network analysis, user log books, buffer battery for readout the meter via the optical interface and reading the display without connected power

Figure 14: Technical data

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3.3 Housing-, operation- and display elements

Figure 15: Meter elements

Meter cover

LC-display

Optical call-up button

Parameterisation button

Mechanical call-up button

Test-LED Nameplate Optical data interface D0

Sealable mechanical reset button

Sealing screw Sealable transformer nameplate Sealing screw Sealable terminal cover

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3.3.1 Display In the standard version the display is not illuminated, however, this can be realised at the customer’s request. The display is set up as follows:

Figure 16: VDEW-Display

1. The operation display shows the current direction of energy as measured by the meter (export/import of active energy, export of inductive/capacitive reactive energy). If current is flowing it is possible to see in which quadrant is being measured by means of the energy direction arrow e.g.:

1st Quadrant +P/+Q

2nd Quadrant -P/+Q

3rd Quadrant -P/-Q

4th Quadrant +P/ -Q

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1 4 5 6

T1 T2 T3 T4 M1 M2 M3 M4 RCE RL CLOCK SET

2 3

8 9

MAN

INST

PWR

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2. The battery status display shows the charging status of the buffer battery of the real time clock. The following displays are possible:

= full voltage, real time clock is buffered when there is no voltage

= discharged, no buffering of the real time clock is possible

3. The communication display is continually lit-up when there is communication with the meter via data interfaces (optical or electrical) or the display flashes when the parameterisation status is active.

4. The phase display signalises connection of the individual phase voltages. With an incorrect rotating field all three symbols flash.

5. The unit is displayed corresponding to the measured energy type or the displayed measured value.

6. In the additional cursor field, operation conditions of the meter are represented. The black arrows show if a manipulation or an installation error has been registered or if the performance threshold has been exceeded.

MAN The cursor is active if a manipulation has been registered on the terminal- or meter cover as well as a magnetic influence event.

INST The cursor is active if an entry has been registered in the installation check register.

PWR The cursor is active if a power threshold set in the meter is exceeded.

7. In the standard cursor field, operation conditions of the meter are represented. The black arrows show which tariff and maximum demand is active and via which hardware (clock or ripple control receiver) the meter should be controlled.

T1-T4 Tariff information for energy. All tariff registers which can be activated are displayed on the nameplate.

M1-M4 Tariff information for maximum demand. All tariff registers which can be activated are displayed on the nameplate.

RCR The cursor flashes when the internal RCR is activated and ready to receive. The relevant cursor is continually active when the internal ripple control receiver receives a telegram.

RL The cursor flashes for the duration of the activation of a reset inhibition.

CLOCK The cursor is active if the internal clock controls the tariff device.

SET The cursor is active when the meter is in the set mode.

8. In the value area the measured values are represented.

9. In the OBIS code area the measured values are defined by means of the OBIS code. The display is capable of displaying the long OBIS code (see page 74).

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3.3.2 Test-LEDs The Test-LEDs are used for the output of energy proportional active- and reactive energy impulses, for certification of the meter and for the display of start-up and no load operation. The impulse constants depend on the meter type. If the meter measures no current or current below the start-up threshold, the meter is in the no-load operation mode. In this case, the LED is continually lit-up. With Combi-meters the LED is continually lit-up if the energy flow direction is negative. If the meter measures current above its start-up threshold, energy proportional impulses are displayed. 3.3.3 Call-up and reset button The call-up button serves to call up the display lists in the display. Via the sealable reset button a manual reset can be carried out which means for the existing energy and maximum demand register new pre-values are formed. 3.3.4 Optical call-up sensor The optical call-up sensor serves to call up the display lists in the display. Operation of the display takes place by means of a pocket lamp. 3.3.5 Parameterisation button The parameterisation button is used to activate the parameterisation status in the meter. The button is located under the meter cover. To operate this button the meter must be opened which means the seals must be broken. Breaking the seals means that the certification expires and therefore this may only be carried out by authorised personnel. When the meter is in the parameterisation status the communication symbol flashes in the display. 3.3.6 Optical data interface D0 Communication between the meter and PC takes place via the optical data interface. An optical communication adapter OKK is required for this. In order to fix the OKK to the meter there is a magnetic ring which is found on the meter cover. Further information on the optical data interface can be found on page 35. 3.3.7 Meter cover The meter cover is made of crystal clear polycarbonate. The housing cover is mounted at the bottom in the baseplate and screwed at the top with both of the sealing screws. With the relevant configuration, when removing the housing cover, a manipulation is registered. More detailed information can be found on this in chapter “6.1 Manipulation recognition” on page 63.

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3.3.8 Sealable terminal cover The terminal cover is made of grey polycarbonate and is fixed to the terminal block with sealing screws. The circuit diagram is fixed on to the inside of the terminal cover. With the relevant configuration, when removing the terminal cover, a manipulation is registered. More detailed information on this can be found in chapter “6.1 Manipulation recognition“ on page 63. A special terminal cover is available for mounting a meter modem. 3.3.9 Nameplate The nameplate contains data for identification of the meter, the approval mark, technical specifications and explanations. 3.3.10 Transformer nameplate Transformers operated meters (in general secondary meters) are equipped with a transformer nameplate. On the transformer nameplate the following information is displayed:

Figure 17: Transformer nameplate

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3.4 Modules Fundamentally the meter consists of:

− Switched-mode power supply − Measuring device − Tariff device − Interfaces − In- and outputs

In the following the most important modules are described.

3.4.1 Voltage supply 3.4.1.1 Direct supply

The LZQJ is supplied via a primary switched, long-range power supply (3x58/100 V ... 3x240/415 V) with a high degree of efficiency. Three-wire meters with 3x100 V ... 3x415 V are supported. The power supply is “earth-fault proof“ and guarantees operation without the neutral conductor (N). In case a component fails during operation the power supply is overload- and short-circuit-proof.

With single-phase connected meters from the LZQJ series a faultless operation up to Unom + 15% / - 20% is guaranteed. Permitted voltage versions:

Measuring voltage Application

3 x 100 V 3-wire 3 x 110 V 3-wire 3 x 200 V 3-wire 3 x 220 V 3-wire 3 x 400 V 3-wire 3 x 500 V 3-wire 3 x 100 V ... 415 V 3-wire 3 x 58/100 V 4-wire 3 x 63/110 V 4-wire 3 x 66,4/115 V 4-wire 3 x 115/200 V 4-wire 3 x 127/220 V 4-wire 3 x 220/380 V 4-wire 3 x 230/400 V 4-wire 3 x 58/100 V ... 240/415 V 4-wire 3 x 290/500 V 4-wire 3 x 400/690 V 4-wire

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3.4.1.2 Auxiliary voltage

Only valid for LZQJ-P2 ... and LZQJ-P5 ... (precision meters with accuracy class 0.2 and 0.5)!

The LZQJ as a precision meter has the possibility of external auxiliary voltage supply. In general there are two types of supply which are differentiated between:

a) Auxiliary supply The energy for the electronic measuring device is only taken from the auxiliary

supply. The auxiliary supply and measuring circuit voltage are galvanically separated.

b) Combined supply With certain voltage conditions the power for the electronic device is no longer taken from the auxiliary supply, instead, it is taken from the measuring circuit voltage. If the auxiliary supply completely fails, the power for the electronic measuring device is taken exclusively from the measuring circuit voltage (feature of the combined supply). This means, the meter is completely capable of functioning even if the auxiliary supply fails (advantage when compared to option a)). The presence of auxiliary voltage supply relieves the load in the voltage paths in the measuring system, resulting in a substantial decrease in apparent power consumption (see Table 2).

Measuring voltage Apparent power consumption per measuring-circuit

voltage path

3x58/100 V up to 3x63/110 V or resp. 3x100 V/3x110 V with combined supply

3x58/100 V up to 3x63/110 V or resp. 3x100 V/3x110 V with pure auxiliary voltage supply

0.02 VA

3x230/380 V up to 3x240/415 V or resp. 3x380 V/3x415 V with combined supply, class of protection 2

3x230/380 V up to 3x240/415 V or resp. 3x380V/3x415 V with pure auxiliary voltage supply

3x400/690 V or resp. 3x690 V with pure auxiliary voltage supply

0.1 VA

Table 2: Apparent power consumption

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3.4.2 Measuring device 3.4.2.1 Measuring principle

The electrical energy is measured by processing the sampling values which the Analog Digital Transformers (ADC) sends to the processor. By means of this, all of the measured values can be measured or calculated in all quadrants. The calculation ensures that the values are stable and resistant to ageing.

Figure 18: Definition of quadrants 3.4.2.1.1 Voltage measurement

The terminal voltages create network proportional internal voltage levels at internal voltage dividers. These are fed into the 3 input channels of the ADC. 3.4.2.1.2 Current measurement

For measuring current, error compensated current transformers are used. The output variables of the respective amplifier are fed into the 3 input channels of the ADC. 3.4.2.1.3 Data protection

During operation the current measurements are stored in the working memory (RAM). Every 24 hours this data is transferred to a non-volatile memory. It is only in cases of longer interruptions that the measuring period is interrupted and the device completely shuts down. Data remains stored in the non-volatile memory for at least ten years. No buffer battery is needed to preserve the data. The data retention is assured exclusively by the qualities of the storage medium (Flash).

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3.4.3 Tariff switching clock The tariff switching clock is integrated into the meter. It is based on a quartz-controlled, battery or capacitor-buffered real time clock (RTC) which provides time information (date, day of week, time) in second intervals. Switching times can be configured exclusively for the customer by means of:

− 16 season tables, − 16 day types or − 384 holiday definitions for any weekdays.

These switching times are compared continually with the real time clock. If they coincide with the configured switching times or switching periods, the switching function is activated. Switching functions are the activation of the maximum demand registers and energy registers. As a result of this, 32 energy registers and maximum demand registers each with a maximum of 8 tariffs can be configured via the tariff switching clock. At the beginning of the summer period an hour is added on to the time of the tariff switching clock (CET). The beginning and end of the summer period is determined with the help of a summer time register. This register is settable in order to be able to react to possible changes of the current valid summer time regulations. The accuracy of the real time clock is within ± 5ppm. The buffering of the real time clock (RTC) can take place by a SuperCap-capacitor with a running reserve of > 10 days. With a completely discharged SuperCap the charging time is approx. 18 min after applying the voltage phases (90% voltage). Instead of a SuperCap-capacitor, the buffering can take place by using a battery (dry Li-battery) with a running reserve of > 20 years. The latter is recommended for meters with load profile memories so that the load profile is correctly dealt with chronologically when there are longer power interruptions or if the meter has been turned off for longer periods. As a rule, the real time clock is quartz controlled however, can also be synchronised via the following variations:

− Synchronisation of the real time clock via the line frequency The clock is synchronised cyclically by a mains frequency controlled timer

− Synchronisation of the real time clock via an impulse at the input contact Synchronisation takes place at

o the next full 1 minute or o next measuring period limit or o a fixed time of the day

− Synchronisation of the real time clock via a DCF77-receiver connected to the S0-input DCF77 is a time signal which is emitted via longwave. The circulation is carried out by the PTB and serves as the legal time. In the DCF77 signal, time information of the next complete minute is coded to which the meter then synchronizes itself.

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Configuration of the real time clock (RTC) Open “Configuration“ > “COMBI-TOOL“ > “Meter“ > “Real Time Clock“

Configuration of the holidays Open “Configuration“ > “COMBI-TOOL“ > “Tariff configuration“ > “Public Holidays“

Configuration of the seasons Open “Configuration“ > “COMBI-TOOL“ > “Tariff configuration“ > “Seasons“

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Configuration of the energy tariffs Open “Configuration“ > “COMBI-TOOL“ > “Tariff configuration“ > “Energy tariffs“

Configuration of the maximum demand tariffs Open “Configuration“ > “COMBI-TOOL“ > “Tariff configuration“ > “Maximum Demand tariffs“


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3.4.4 Ripple control receiver (RCR) The integrated rippple control receiver of the LZQJ is based on a highly selective recursive filter which directly processes the16 bit sampling values of the AD-transformer. Due to the sampling rate of 3200 Hz, ripple control frequencies in the range of 110 to 1600 Hz are supported. The following telegrams can be configured.

− ABB Ricontic b − ABB Ricontic s − L&G Semagyr 50a − L&G Semagyr 50b − L&G Semagyr 52 − L&G Semagyr 56 − RWE − Sauter − Schlumberger Pulsadis I

− Schlumberger Pulsadis II − EdF − CDC − Siemens TELENERG − Zellweger ZAG 60 − Zellweger ZAG 180 − Decabit − ZPA

The telegrams differ by their command evaluation procedure and by their digital structure of the pulse sequence. The ripple control receiver can switch 6 ripple control relays which are available for control functions of the meter. Also tariff- and maximum demand controls, resets and caution signals can be passed on directly via terminals or optical fibre interfaces.

Reading out and setting of the RCR position of the ripple control receiver Open “Direct“ > “RCR position...“

After activation of the menu option, the relay position of the ripple control receiver is read out first of all. Next a window opens in which the relevant relay position is marked with an “X”. The relay position can be changed by means of a double click on the appropriate field. To send the changed settings to the meter click on “Write“.

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3.4.5 Data interfaces Data exchange between meters and readout devices (eg. PC, modem, PDA, etc.) takes place via the optical interface (D0) or, at auxiliary terminals, via the electrical interface (RS232, RS485, CL0). Communication is in accordance with DIN EN 62056-21 or DLMS. 3.4.5.1 Optical data interface D0

Communication between the meter and the PC takes place via the optical data interface. For this an optical communication adapter (OKK) is necessary which can be obtained from EMH. The OKK is available for connection to a readout device with a RS232-, USB-or Bluetooth interface. It has a magnet to fix it to the iron ring situated on the front of the housing cover. Transmission rates from 300 to 9600 Baud, fixed or mode C/E can be set.

Figure 19: Optical communication adapter OKK

Configuration of the optical interface Open “Configuration“ > “COMBI-TOOL“ > “Meter“ > “Interfaces“


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3.4.5.2 Electrical interface

Depending on the model, the LZQJ has the following electrical interfaces:

− CL0 − RS485 − RS232

A simultaneous operation of the first electrical interface and optical interface is not possible.

In addition to the above specified interface a second electrical interface can be assembled, e.g. RS485 or RS232. The second interface functions independent of the first interface and can work simultaneously to the first electrical or resp. optical interface. By means of this, it is possible to grant the customer a restricted read access e.g. of the relevant billing data via the second interface. The first interface can be used in parallel by the utility company for meter communication with access to all data. By means of a multi-level password concept, the access rights can be easily assigned.

Figure 20: Application example of electrical interfaces Via the electrical interfaces, transmission rates of 300 to 9600 baud are possible.

Configuration of interfaces Open “Configuration“ > “COMBI-TOOL“ > “Meter“ > “Interfaces“


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3.4.5.2.1 Electrical interface RS485

The electrical interface RS485 is a symmetrical two wire interface (half duplex) and is designed according to TIA/EIA-485 / ITU-T V.11. The galvanic de-coupled interface is found at the auxiliary terminals 23 (A) and 24 (B) and optionally at 27 (GND).

Figure 21: Connection diagram - RS485

Figure 22: Connection diagram - RS485 with GND

Features

Number of connected meters up to 32

Maximum cable length up to 1000 m

Data transmission rate 300 ... 9600 Baud

Signal accord. to TIA/EIA-485 / ITU-T V.11 logic “1“ -0.3 V to -6 V

logic “0“ +0.3 V to +6 V

Table 3: Specification of RS485 interface

RS485 Norm-Bus

Up to 32 devices can be operated on one RS485 Bus. Normally in bus systems the first and last device are terminated by a terminal resistor between wire “A” and “B” in order to eliminate conductor reflections. Bus structure:

Figure 23: RS485-two-wire bus system

B A B A

. . .

RS485-two-wire bus

B Amax. 5 m

max. 1000 m

Device 1 Device 2 Device 3

23 24

RTERM= 120 Ω

see device 1

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3.4.5.2.2 Electrical interface RS232

The electrical interface RS232 is a symmetrical two-wire interface designed according to ITU-T V.24 and ITU-T V.28. The galvanic de-coupled interface is found at three auxiliary terminals 23 (RxD) and 24 (TxD) and at 27 (GND).

Figure 24: Connection diagram - RS232

Features

Number of connected meters 1

Maximum cable length up to 15 m


Signal accord. to ITU-T V.28 logic “1“ -3 V to -15 V

logic “0“ +3 V to +15 V

Table 4: Specification of RS232 interface

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3.4.5.2.3 Electrical interface CL0 (CS)

The galvanic de-coupled CL0 interface is designed according to DIN 66348, part 1. It is a passive two-wire interface which means that it does not have its own power source. The data is transmitted by electric current / no electric current (Mark/Space) at a nominal current of 20 mA which is the reason why the CL0 interface is also referred to as the 20 mA current interface. The CL0 can be found at the auxiliary terminals 23 (+) and 24 (-) in accordance with the VDEW-Specifications 2.1.

Figure 25: Connection diagram - CL0 The voltage drop in the meter of the series-connected transmitter is approx. 2 V and of the receiver is approx. 3 V so that a maximum of 4 meter outputs (dependent on the meter modem) can be connected in series and operated by a modem. General features

Number of connected meters 1

Max. cable length up to 1000 m


Electrical features

Signal One zero

Sender ≥ 11m A ≤ 2.5m A

Recipient ≥ 9 m A ≤ 3m A

Permitted voltage drops

Sender max. 2 V

Recipient max. 3 V

Maximum values

Current 30 mA (short circuit)

Voltage 30 V (open electric circuit)

Table 5: Specification of CL0 interface

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3.4.5.3 Optical fibre interface LLS

At the meter terminal L there is a coupling point to which an optical fibre can be connected by simply plugging- and screwing in. The other end of the optical fibre is plugged into the optical fibre separation box. The optical fibre interface can be found at the auxiliary termnal L.

Figure 26: Connection diagram - LLS The optical fibre separation box is in DIN-Rail housing according to EN 50022 and it has its own optical fibre output so that a total of four relay boxes can be cascaded.

Figure 27: Connection plan - LLS For each relay box up to 6 control outputs can be realised, altogether a total of 24 control outputs. Each output of the optical fibre separation box can be designed as a relay- (optional with suppressor circuit) or Opto-MOSFET output or as a make- or break contact. The optical fibre separation box is supplied by a long range network power supply from 100 V to 230 V. A complex input suppressor circuit protects the meter from destruction as a result of bad power supply. With the described arrangement, an optimal isolation is obtained by means of galvanic separation of the optical fibre between the meter and relay boxes.

Features

Number of connected boxes up to 4

Length of the optical fibre: Meter-Box up to 20 m

Length of the optical fibre: Box-Box up to 50 m

Data transmission rate 4800 Baud

Table 6: Specification of optical fibre interface

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3.4.6 In- and outputs 3.4.6.1 Inputs

The LZQJ can be equipped with max. 8 inputs and designed as follows: − max. 7 x control inputs with system voltage (potential-free) − max. 2 x control inputs according to S0 specification (not potential-free) Specifications

System voltage 58...230 V AC, potential-free

… voltage 12…78 V DC

S0 max. 27 V DC, 27 mA (active), not potential-free

Table 7: Specification of inputs

The inputs can be used e.g. for tariff switching, synchronisation of the RTC or as an impulse input for external electricity meters. 3.4.6.2 Outputs

A maximum of 7 output contacts are available for supplying impulses to the customer. The contacts may be S0-outputs, relays (max. 2) or Opto-MOSFET-outputs. S0- or Opto-MOSFET-outputs can be designed either as a make- or break contact. Relay-outputs are realised as make contacts. If the output contacts listed here are not sufficient, the option of a optical fibre interface (LLS) for separate connection of an optical fibre separation box is recommended.

Specifications

S0 Pulse time 20 to 500 ms (25 to 1 Hz) in 10 ms-steps; Energy impulses 100-100.000 Imp./kWh; max. 27 V DC, 27 mA (passive)

Relay max. 250V AC/DC, 100 mA

High load relay max. 250V AC/DC, 10 A

Opto-MOSFET max. 250V AC/DC, 100 mA Table 8: Specification of outputs The outputs can be used for example as impulse-, tariff-, measuring period- or alarm outputs. Note: With the wiring of pulse outputs, the maximum load capacity (see Table 8: Specification of outputs) must be observed. If necessary, a resistor or relay is to be inserted (activated).

Figure 28: Connection plan

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4 Firmware Diverse configurable variables have been programmed in the meter which define the meters functions. These include:

− settable variables − parameterable variables Settable variables can be changed by operation buttons or one of the interfaces.

Parameterable variables include variables which define the properties of the counter. Parameterable variables can be changed via the optical interface D0 or one of the electrical interfaces. To do this, the meter must be in the parameterisation status (by pressing the parameterisation button). To operate the parameterisation button, the meter cover must be opened which means that the seals must be broken. Breaking the seals means that the certification is no longer valid and may therefore only be carried out by authorised personnel.

When the meter is in the parameterisation status only the communication symbol flashes.

The parameterisation status is ended by means of the following:

− 24 hours of uninterrupted operation − Command F.F() (deletion of the error register)

Deletion of the error register Open “Direct“ > “Single commands... “ > “Meter“ > “Write command“ and enter the following:


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4.1 Tariff device The tariff device calculates the consumed or supplied electrical power or energy on the basis of the digitalised measured values and allocates it to the power and energy registers. 4.1.1 Energy- and maximum demand tariffs With the LZQJ meter, a maximum of 32 registers each can be configured for electrical energy and maximum demand. Each register has a memory with up to 15 pre-values which represent the measured values and the time stamp of the last 15 reset periods. The assignment of the measured variables is configured at EMH according to the customer’s requirements. 4.1.1.1 Maximum demand metering

4.1.1.1.1 Block measuring period

One possibility of forming the maximum is based on the measurement of the average power during a block measuring period tm. The time integral of the accrued energy is divided by the measuring period. If the current maximum demand value exceeds the highest measured maximum demand value since the beginning of the billing period, this value is saved as the new maximum demand in the relevant register with the appropriate time stamp. The duration of the measuring period tm is derived from the real time clock (RTC). The duration of the measuring period can be configured to 1, 5, 10, 15, 30 or 60 minutes. The beginning of a measuring period is activated by an:

Internal switching signal: − Tariff switching clock − Ripple control receiver, or

External switching signal at one of the auxiliary terminals: − At the control input S0 − At a control input (system voltage) configured for this purpose

Figure 29: Formation of the maximum demand with a block measuring period

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4.1.1.1.2 Sliding measuring period

An additional possibility of forming the maximum is measuring the average power over a sliding measuring period. The measuring period can be divided into several partial measuring periods depending on the measuring period length. By means of this, a sliding average value is created which is updated at the end of each partial measuring period. This average value is saved in a circular memory at the end of every partial measuring period and the sliding maximum is calculated on the basis of the entries saved in this circular memory. Formation of the sliding maximum begins with the first partial measuring period after a reset. As can be seen from the following example, a complete measuring period (in the example with 3 partial measuring periods) is required before the first valid value (1.85 kW) is available. A new, valid sliding measuring period is available at the end of each next partial measuring period. If the current power value exceeds the highest power value which has occurred since the beginning of the sliding measuring period, it is saved as the new, valid maximum in the appropriate register with a measuring period time stamp.

The measuring period duration can be configured to 1, 5, 10, 15, 30 or 60 minutes. With a measuring period of ≤ 30 min, the duration of the partial measuring period is 1 min. With a measuring period of 30 to 60 min, the duration of the partial measuring periods is 5 min.

The beginning of a measuring period is activated by an:

Internal switching signal: − Tariff switching clock − Ripple control receiver, or

External switching signal at one of the auxiliary terminals: − At the control input S0 − At a control input (system voltage) configured for this purpose The following example shows the calculating of sliding measuring periods by means of 3 partial measuring periods.

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Figure 30: Formation of the maximum demand with a sliding measuring period The values from the sliding measuring period result from the sum of the last 3 entries from the circular memory.

Measuring period 1: (0+0+0) = 0 kW Measuring period 2: (0.57+0+0) = 0.57 kW Measuring period 3: (0.72+0.57+0) = 1.29 kW Measuring period 4: (0.56+0.72+0.57) = 1.85 kW (1. valid value) Measuring period 5: (0.83+0.56+0.72) = 2.11 kW (1. valid value) Measuring period 6: (0.65+0.83+0.56) = 2.04 kW (1. valid value) Measuring period 7: (1.03+0.65+0.83) = 2.51 kW (1. valid value) Measuring period 8: (1.18+1.03+0.65) = 2.86 kW (1. valid value) Measuring period 9: (0.85+1.18+1.03) = 3.06 kW (1. valid value)

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4.1.1.2 De-coupling time te

In order to control other devices (e.g. a maximum demand monitor), a so-called de-coupling signal te can be generated at an output (aux. terminal) or the optical fibre interface. Part 4 of VDE 0418 regulation stipulates that the de-coupling time may not exceed the higher of the following: 1% of the measuring period or 15 seconds. This de-coupling time is part of the measuring period and is generated at the beginning. In Europe, the measuring period most commonly used is 15 minutes (= 900 s), therefore the de-coupling time is 9 seconds. Electronic maximum demand meters need practically no de-coupling time. The de-coupling time te is distinguished by the speed of the software running time and rapid switching in the semiconductor elements which lies at a maximum in the millisecond range. Although the de-coupling signal is output externally with 1% of the measuring period, with electronic maximum demand meters there is a continual measuring process during this period. 4.1.1.3 Reset (cumulation)

A reset has the following effect:

− Termination of the running measuring period − Saving of the current maximum demand in the corresponding pre-value memory − Cumulation of the current maximum demand in the cumulation register − Reset of the maximum demand register to zero − Reset of the current average power value to zero − Saving of the energy values accrued until the time of the reset in the relevant pre-

value memory − Activation of a reset inhibition − Incrementing of the reset register 0.1.0 − Registration of the reset time in the appropriate pre-value memory A reset can be activated by one of the following:

− Reset button − The internal tariff switching clock − The internal ripple control receiver − An external control input − By a command via the optical data interface D0 − By a command via the electrical data interface

After a reset, depending on the selected reset channel, a temporal lock is activated. During this lock-out time no further resets can be carried out. The lock-out time is at least the duration of a measuring period and at the most 40 days. With each reset the block time is activated once again. Three block times with different durations can be set.

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Inhibition times for a renewed reset via 1 2 3 4 5 Activation of a reset by ...

1 ... Optical sensor or mechanical button t2 t3 t3 t3 t3 2 ... Interfaces (optical, electrical) t3 t2 t3 t3 t3 3 ... Terminals (Terminal block) t3 t3 t2 t2 t2 4 ... Internal ripple control receiver (RCR) t3 t3 t2 t3 t2 5 ... Internal real time clock or internal period counter t1 t1 t2 t2 t2

Table 9: Example - Inhibition times for a renewed reset The reset inhibitions are cancelled by a three-phase voltage interruption. With every reset, the respective time information (timestamp) is saved. The reset counter runs from 0...99 and, at the same time serves as an index for the pre-values.

Set reset inhibition times Open “Configuration“ > “COMBI-TOOL“ > “Meter“ > “Reset inhibition“


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4.1.1.4 Load profile

4.1.1.4.1 General

Fundamentally two independent load profiles can be created from the LZQJ.

− P.01 Standard load profile According to VDEW-Specifications 2.1

− P.02 User load profile Recording of the measured values for the network analysis according to EN 50160 standards

4.1.1.4.2 Standard load profile P.01

a. Measuring types There are principally three ways of measuring the individual load profile channels.

− Average value, OBIS value group D = 5 The calculation of the average value takes place analog to the maximum

formation (see 4.1.1.1 Maximum demand metering) which means that the average value of every registration period arises from the time integral during the run period divided by the registration period duration.

− Energy, OBIS value group D = 8 At the end of each registration period the current values from the energy

registers are saved.

− Energy feed, OBIS value groups D = 29 At the end of each registration period the differences between the current

values from the energy registers and from the starting point of the registration period are saved.

b. Example of a load profile with a regsitration period length of 15 min /EMH4\@01LZQJC0012B P.01(0060323125020)(00000000)(15)(3)(1.5)(kW)(1.8)(kWh)(1.29)(kWh) (1.000)(00100.000)(0.2500) (1.000)(00100.250)(0.2500) (1.000)(00100.500)(0.2500) (1.000)(00100.750)(0.2500) (1.000)(00101.000)(0.2500)

The load profile consists of header lines [P.01()] and value lines. The headers consist of a time stamp, status information and channel information on the readout values. The time stamp relates to the value lines and each marks the end of this period. The output format corresponds to the definition in the VDEW-Specifications 2.1.

c. Memory depths Assuming there are 2 headers per day, tm = 15 min, the format is x.xxx kW and there is an exclusive configuration of the standard load profile, the following maximum memory depths would be the result. With simultaneous configuration of the user load profile P.02 the memory depths decrease.

Number of channels Days with tm = 15 min

1 approx. 300

2 approx. 200

4 approx. 100

6 approx. 80

Table 10: Memory depths

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The number of channels can be configured between 1 and 6 (as an option up to 32) and a measured variable can be freely assigned to each channel. The load profile always runs clock synchronised. The restart of a registration period (with tm = 15 min) takes place every ¼ h (time from the meters real time clock), which means at hh:00, hh:15, hh:30 and hh:45 o’clock. In the event of a voltage failure the current time is saved in the data protection memory.

After power return, two methods are differentiated between:

a) Power return within the current registration period: No new registration period is formed, the current registration period continues.

Power return outside the current registration period: A new registration period is formed.

b) With each power return a new registration period is formed.

The load profile can be represented in the display. The load profile can be certified and used for billing purposes. The load profile depth for output via data interfaces can be configured and integrated in up to four readout tables so that the volume of data can be selected to fit various requirements. Furthermore there is the possibility to read out targeted periods of the load profile.

Figure 31: Diagram of standard load profile

Read out standard load profile P.01 Open “Readout“ > “P.01 Standard LP...“


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5 Display- and readout lists 5.1 Display lists The display lists are shown in the meters display. The display is operated via the call-up and reset button. As an alternative to the call-up button, the optical call-up sensor can be used.

Figure 32: Operation of the display The following belong to the display lists:

− Operation display (scrolling list) − Test mode display − Call-up list (“Std-dAtA” Display of all register contents in the list) − Load profile list (“P.01” Display of load profile values) − Certification relevant log book (“P.99” Display of changes to the output impulse

constants and the LED-impulse constants) − Set list (“SEt” Editing of settable variables) − Info list (“InFO-dAtA” Display of instantaneous values) − Test list (“tESt” High resolution mode for test purposes) The display lists can be configured at any time with the software EMH-COMBI-MASTER 2000. The call-up list is however the exception and, according to PTB regulations, may not be changed after calibration.

Configuration of display lists Open “Configuration“ > “COMBI-TOOL“ > “Lists“ > “Display lists“


Call-up button Reset button

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5.2 Call-up of the display lists / control of the display 5.2.1 Brief instructions on the operation of display

Menu “Reset button” Menu “Call-up button“

2 s < t < 5 s

2 s < t < 5 s

2 s < t < 5 s

2 s < t < 5 s

2 s < t < 5 s

2 s < t < 5 s

2 s < t < 5 s

Load profile list(“P.01”)

Call-up list (“Std-dAtA”)

Cert. rel. log book(“P.99”)

End (“End”)

2 s < t < 5 s

Info list (“InFO-dAtA”)

Set list (“Set”)

Test list (“tESt”)

End (“End”)

Operation display

Test mode display

t < 2 s t < 2 s

t < 2 s

t < 2 s

t < 2 s

t < 2 s

t < 2 s

t < 2 s

t < 2 s

t < 2 s

t < 2 s

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5.2.2 Operation display (scrolling list) The operation display is the standard display. Here the data is displayed in 10 s intervals (scrolling).

Operation display

Menu option Display Button

1 Operation display (scrolling)

t < 2 s

To the display test

Table 11: Operation display 5.2.3 Display test In the test mode display, all segments of the display are activated and flash periodically.

From the test mode display you can switch to the menu “Call-up button” or “Reset button”.

It is possible to reach the menu “Call-up button” by pressing the call-up button < 2 s and the menu “Reset button” by pressing the reset button < 2 s.

Test mode display


t < 2 s

To the menu “Call-up button”

1 Test mode display (Display flashes)

t < 2 s

To the menu “Reset button”

Table 12: Test mode display

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5.2.4 Menu “Call-up button“ The first displayed data in the menu “Call-up button” is the standard data. Every further operation of the call-up button leads to the display of further menu options e.g. to the load profile “P.01”. To select the menu option, the call-up button is pressed for at least 2 s. The end of the menu is represented with “End”. If the time limit of two measuring- or registering periods (in general 30 min) is reached after the last operation of the button the display automatically switches back to the operation display. This can also be achieved by pressing the call-up button for > 5 s.

Menu “Call-up button”


t < 2 s

To the next menu option

1

Activation of the call-up list

2 s < t < 5 s

Entry into the call-up list

t < 2 s


2 Activation of the load profile list

2 s < t < 5 s

Entry into the load profile list

t < 2 s


3 Activation of the certification relevant log book (optional)

2 s < t < 5 s

Entry into the certification relevant log book

4 End of the display menu

t < 2 s

Return to pos. 1

Table 13: Menu “Call-up button”

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5.2.5 Call-up list (menu option “Std-dAtA”) The call-up list contains billing relevant data. Every operation of the call-up button leads to the display of further data. To allow a faster display of data, pre-values can be skipped. This is achieved by pressing the call-up button longer than 2 s. The end of the menu is represented with “End”. If the time limit of two measuring periods (in general 30 min) is reached after the last operation of the button, the display automatically switches back to the operation display. This can also be achieved by pressing the call-up button for > 5 s. By means of this it is guaranteed that at least the procedure of a complete measuring period can be observed on the display.

Call-up list


1 Activation of the call-up list

2 s < t < 5 s

Entry into the call-up list

2 First register

t < 2 s


3

Next register

t < 2 s


4 Pre-value

t < 2 s


5 Repeat positions 3 and 4 for the display of further registers/values

t < 2 s

Return to pos. 2 6 End of the call-up list

t > 5 s

To the operation display

Table 14: Call-up list

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5.2.6 Load profile list, standard LP (menu option “P.01”) The first value displayed in the load profile list is the date of the last recorded load profile. Every further operation of the call-up button < 2 s leads to the display of the previous date. By operating the call-up button > 2 s, the last load profile entry on the selected date is shown. Every further operation of the call-up button < 2 s switches the display to the next value in the selected registration period. After the last value, the date of the second to last registration period etc is displayed. The end of the menu is represented with “End”. If the time limit of two measuring- or registering periods (in general 30 min) is reached after the last operation of the button the display automatically switches back to the operation display. This can also be achieved by pressing the call-up button for > 5 s. By means of this it is guaranteed that at least the procedure of a complete measuring period can be observed on the display.

Load profile list (Standard LP)


1 Activation of the load profile list

2 s < t < 5 s

Entry in the load profile list

2 Last date

t < 2 s


3

Date of the previous day

2 s < t < 5 s


4 Time of the last entry of the selected day

t < 2 s


5 Status entry of the last entry

t < 2 s


6 First load profile value of the last entry

t < 2 s


7 Second load profile value of the last entry

t < 2 s


8 Time of the penultimate entry of the selected day

t < 2 s


t < 2 s

Return to pos. 4 9 End of the load profile list

t > 5 s


Table 15: Load profile list

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5.2.7 Certification relevant log book (menu option “P.99”) The certification relevant log book is used for recording changes to the LED constant(s) and to the input- and output constants. The first displayed data of the certification relevant log book is the date of the entry. Every further operation of the call-up button leads to the display of further data in the following sequence:

− Date − Time − Status entry (when all entries deleted: 00002000 = delivery condition) − OBIS code of the displayed value

o 0.3.0 = Change of the LED constants o 0.3.3 = Output impulse constants for active energy o 0.3.4 = Output impulse constants for reactive energy o 1-B:0.7.0/1 = Input impulse constants for active- and reactive energy

− Old value − New value

If there are other log book entries in the certification relevant log book these are displayed with every further operation of the call-up button < 2 s. The end of the menu is represented with “End”. If the time limit of two measuring- or registering periods (in general 30 min) is reached after the last operation of the button the display automatically switches back to the operation display. This can also be achieved by pressing the call-up button for > 5 s. By means of this it is guaranteed that at least the procedure of a complete measuring period can be observed on the display.

Certification relevant log book


1 Activation of the certification relevant log book

2 s < t < 5 s

Entry into the certification relevant log book

2 Date of the last entry

t < 2 s


3

Time of the last entry

t < 2 s


4 Status entry

t < 2 s


5 OBIS code

t < 2 s


6 Old value

t < 2 s


7 New value

t < 2 s


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8 Repeat position 2 to 7 for the display of further registers/values

t < 2 s

Return to pos. 2 9 End of the certification relevant log book

t > 5 s


Table 16: Certification relevant log book

In the certification relevant log book 40 entries can be saved. Further changes to the pulse constants are only possible when the oldest entry is internally marked as overwriteable. This is the case when:

− the time stamp of the oldest entry is more recent than the time stamp of the oldest pre-value

− the time stamp of the oldest entry is younger than the current operation time deducting the parameterised value in register 5BD. This value is higher than the operation time of a complete load profile.

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5.2.8 Menu “Reset button” In order to operate the reset button the module cover seal must be broken. This may only be carried out by authorised personnel!

The first value in the menu “Reset button” is the menu option SEt (set list). An operation of the call-up button < 2 s leads to the display of further menu options, e.g. info- or test list. To select the menu options, the call-up must be pressed for at least 2 s. The end of the menu is represented with “End”. If the time limit of two measuring- or registering periods (in general 30 min) is reached after the last operation of the button the display automatically switches back to the operation display. This is also achieved by pressing the call-up button > 5 s.

Menu “Reset button”


1 Operation display (Scrolling)

t < 2 s


t < 2 s

To the menu “Call-up button”

2

Test mode display

t < 2 s

To the menu “Reset button”

t < 2 s


3

Activation of the set mode

2 s < t < 5 s

Entry into the set list

t < 2 s


4

Activation of the info list

2 s < t < 5 s

Entry into the info list

t < 2 s


5

Activation of the test mode

2 s < t < 5 s

Entry into the test list

6 End of the display mode

t < 2 s

Return to pos. 3

Table 17: Menu “Reset button”

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5.2.9 Set list (Menu option “Set”) In the set list, settable values can be changed via the call-up button and/or the reset button. Values with several digits which can be changed via the edit button are edited starting at the left (first) digit.

Important information for setting the date and time: When setting the clock you must first set the date and then the time. Otherwise the clock may be incorrectly set forward or back by ± 1 hour during the transition from summer to winter time (and vice versa) as seasonal adjustment is carried out later by the meter.

Set list


1 Activation of the set list

2 s < t < 5

Entry into the set list

2 First set value

t < 2 s


3

Next set value

t < 2 s

Edit first value

4 Edit first digit (digit flashes)

t < 2 s

Increment digit by 1

t < 2 s

Edit next digit

5 Repeat position 4 for further digits

t < 2 s

Keep the old value

6

All digits flash

t < 2 s

Save new value

t < 2 s

Return to pos. 2 7 End of the set list

t > 5 s


Table 18: Set list

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5.2.10 Info list (Menu option “InFO-dAtA”) The info list contains instantaneous values which are used during the start-up procedure. Every operation of the call-up button leads to the display of further data. To allow a faster display of data, pre-values can be skipped. This is achieved by pressing the call-up button longer than 2 s. The end of the menu is represented with “End”. If the time limit of two measuring- or registering periods (in general 30 min) is reached after the last operation of the button the display automatically switches back to the operation display. This is also achieved by pressing the call-up button > 5 s. By means of this it is guaranteed that at least a complete measuring period can be observed on the display.

Info list


1 Activation of the info list

2 s < t < 5

Entry into the info list

2 First register

t < 2 s


3

Next register

t < 2 s


4 Repeat positions 3 for the display of further registers

t < 2 s

Return to pos. 2 5 End of the info list

t > 5 s

To operation display

Table 19: Info list

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5.2.11 Test list (Menu option “tESt”) The test list is used for testing the meter. It contains the same data as in the operation display, however, the data does not scroll and also the energy register(s) is displayed in high resolution. The LED flashes in each shown energy mode. Every operation of the call-up button leads to the display of further data. If the call-up button is activated for at least 5 seconds, the display automatically switches over into the operation display. The test mode is exited when the initialisation telegram (see for this ZVEI-recommendation “Testing of electronic meters via the data interface”) is sent together with the measuring period default (see parameter d) “0” via the data interfaces or when a time period of 24 hours elapses since activation of the mode.

Test list


1 Activation of the test list

2 s < t < 5

Entry into the test list

2 First register

t < 2 s


3

Next register

t < 2 s


4 Repeat pos. 3 for the display of further registers/values

For return to the operation display

Press t > 5 s.

Table 20: Test list

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5.3 Readout lists Readout lists offer the possibility (depending on configuration and access authorisation) to read out measuring variables, momentary values and events via the meters interfaces.

Available lists Configurable

Table 1 (billing data) Table 2 (load profile data of the last 40 days) Table 3 (test data) Service table (instantaneous values) Standard load profile P.01 User load profile P.02 Operation log book P.98 Certification relevant log book P.99 User log book P.200 Event log book P.210 Event log book P.211

Data readout Open “Readout > ...”

Configuration of readout lists Open “Configuration” > “COMBI-TOOL” > “Lists” > “Readout lists”

Further information and notes on reading out meter data can be found in the appendix on page 87 and in the user manual EMH-COMBI-MASTER 2000.

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6 Special features 6.1 Manipulation recognition For registering manipulation attempts, the LZQJ can be equipped with a manipulation recognition system which registers manipulation when the housing cover and terminal cover are removed or when there is magnetic interference. 6.1.1 Principle functions On the main board there are 2 micro buttons. The meter cover and terminal cover both have a pin on the inner side. Each time the meter cover or the terminal cover is removed, a manipulation attempt is registered by the respective micro button. By equipping the LZQJ with a buffer battery the removal of the housing cover or terminal cover is also registered when the meter is switched off. 6.1.2 Output possibilities There are 4 possibilities to show a manipulation attempt.

1) Cursor in the display 2) Registration entry 3) Activation of an alarm contact 4) Log book entry

Figure 33: Output of manipulations 6.1.2.1 Cursor in the display

When a manipulation attempt is registered a cursor appears at the top right in the display next to “MAN”.

How to reset a manipulation can be freely configured.

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6.1.2.2 Register entry

Manipulation attempts are shown by the first digit of the installation check register C.86.

The digit “1” indicates manipulation of the meter cover:

The digit “2” indicates a manipulation of the terminal cover:

The digit “4” indicates manipulation from magnetic fields:

There are many different possibilities for resetting the registration entry. 6.1.2.3 Activation of an alarm contact

A manipulation message can be sent to the control centre via an alarm contact and a meter modem. A manipulation message can also be sent as an Short Message (SMS). 6.1.2.4 Log book entry

6.1.2.4.1 User log book P.200

Every manipulation attempt is registered in the user defined log book P.200. This data can also be read out via the service table TS. The beginning and end of the last manipulation is registered and saved with information on the time and date and also the number of manipulation attempts (provided meter is in the operation condition).

Examples:

P.200(0060120085945)(00002000)()(0) Status: Log book deleted

P.200(0060120114119)(00000008)()(0) Status: Manipulation Terminal cover

P.200(0060120114136)(00000108)()(0) Status: Unauthorised read access, manipulation of the terminal cover

P.200(0060120114527)(00000108)()(0) Status: Unauthorised read access, manipulation of the terminal cover

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6.1.2.4.2 Event log book P.210

In the event log book P.210 every manipulation attempt is saved with a time stamp (start and end). Every manipiulation is marked accordingly with an event code. Examples:

P.210(0061124075651)(2000)()(0) P.210(0061124075938)(3307)()(0) Event 3307: PAR-status deactivated P.210(0061124080040)(339A)()(0) Event 339A: Housing cover has been closed P.210(0061124080047)(339B)()(0) Event 339B: Terminal cover has been closed Further events are for example:

23AC Start manipulation terminal cover 33AC End manipulation terminal cover 239B Terminal cover contact has been opened 339B Terminal cover contact has been closed

23AD Start manipulation housing cover 33AD End manipulation housing cover 239A Housing cover contact has been opened 339A Housing cover contact has been closed

23A8 Start manipulation magnetic field 33A8 End manipulation magnetic field 239C Magnetic field sensor is activated 339C Magnetic field sensor in neutral position again

2307 PAR-status activated 3307 PAR-status activated

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6.2 Overload monitoring The LZQJ can be equipped with an overload monitoring feature which detects when the configured overload threshold is exceeded during a measuring period. Values from 0 to 99.999.999 kW are permitted.

Setting the overload threshold Open “Direct” > “LZQJ-settings (VDEW2.1)...” > “Overload threshold”

First of all read out the overload threshold set in the meter. Afterwards you can change the values and write them back into the meter.


The sum of all overranges is saved in the register 1.36.0.01.

The maximum demand register M0 for current consumption P+ 1.4.0 or the register 1.25 for the momentary value for P+ is used as a basis for recognising overconsumption. When the overconsumption threshold is exceeded a cursor (PWR) is shown in the display. An alarm contact can also be switched. Information on the overconsumption threshold can be found in the call-up list and in table 1.

Figure 34: Diagram - Overconsumption

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6.3 Installation check register C.86.0 In the installation check register C.86.0 installation errors are saved. The monitored measured variables result from the instantaneous values. The installation check register is usually shown in the scrolling list or can be called up via the call-up list. The installation check register has 32 error flags which are represented by an 8 digit hexidecimal number. With a correct installation of the meter, the register contains the value “00000000”.

Event Value Meaning

1* Manipulation of the meter cover 2* Manipulation of the terminal cover

Manipulation recognition

4* Manipulation from magnetic fields 2 Wrong phase sequence 4* Asymmetric current, e.g. 30%

Wrong phase sequence

8 Asymmetric voltage, e.g. 18% 1 Negative energy direction L1 (P) 2 Negative energy direction L2 (P)

Negative energy direction

4 Negative energy direction L3 (P) 1* Current interruption L1 2* Current interruption L2

Current interruption

4* Current interruption L3 1 Maximum current exceeded L1 2 Maximum current exceeded L2

Maximum current exceeded (I > Imax)

4 Maximum current exceeded L3 1 Undervoltage L1 2 Undervoltage L2

Undervoltage (U < 80%)

4 Undervoltage L3 1 Overvoltage L1 2 Overvoltage L2

Overvoltage (U > 115%)

4 Overvoltage L3 * optional, if configured

C.86.0 (0 0 0 0 0 0 0 0) Manipulation recognition Wrong phase sequence Free Negative energy direction Current interruption Max. current exceeded Undervoltage Overvoltage

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6.4 Network analysis 6.4.1 User load profile P.02 The user load profile P.02 registers and saves measured variables from the network quality following the EN 50160 standards. With regards to the measured variables and registration period duration (normally 10 min) the user load profile is completely independent of the standard load profile P.01.

a. Measuring variables The following measuring variables are recorded:

− Average system voltage Uaverage (L1, L2, L3) − Minimum system voltage Umin (L1, L2, L3) − Maximum system voltage Umax (L1, L2, L3) − Average phase currents Iaverage (L1, L2, L3) − Maximum phase currents Imax (L1, L2, L3) − Total Harmonic Distortion U THDU (L1, L2, L3)1 − Total Harmonic Distortion I THDI (L1, L2, L3)1 − Flicker intensity Pst (L1, L2, L3)1 − Network frequency f Optionally in the user load profile other measured variables can also be recorded.

Figure 35: Diagram of additional load profile

1 not available for 60 Hz and 162/3 Hz

69

b. Memory depths With the previous example and an exclusive configuration of the user load profile, the profile P.02 has the following maximum memory depth. With a simultaneous configuration of the standard load profile P.01 the memory depth decreases.

Number of channels Days with tm = 10 min

25 approx. 30

Table 21: Memory depths The functions of the user load profile correspond to that of the standard load profile. The period length and the behaviour with voltage interruptions can be set separately for both load profiles. Unlike the standard load profile, the user load profile is not shown on the display.

Read out user load profiles P.02 Open “Readout” > “P.02 User-LP... ”


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6.4.2 Voltage quality register C.86.1 In the voltage quality register C.86.1 the over- and underranges of the voltage parameters are saved. The register can also be used as a status channel in the user load profile P.02. The limiting values are defined in DIN EN 50160, they can also be configured to suit customer requirements. From the monitored values the average values are formed via the registration period of the user load profile P.02. At the end of a registration period the values are compared with the guidelines and if necessary saved in the appropriate registers. The voltage quality register has 32 error flags which are represented by means of an 8 digit hexadecimal number. The sum of all over- and underranges are saved in the registers C.88.00...31.

Event Value Meaning THD Voltage 1 THDU, L1 > THDU, max 2 THDU, L2 > THDU, max 4 THDU, L3 > THDU, max Flicker intensity 1 Flicker Pst, L1 > Flicker Pst, max 2 Flicker Pst, L2 > Flicker Pst, max 4 Flicker Pst, L3 > Flicker Pst, max Voltage L3 1 Voltage L3 < Umin1 2 Voltage L3 > Umax1 4 Voltage L3 < Umin2 8 Voltage L3 > Umax2 Voltage L2 1 Voltage L2 < Umin1 2 Voltage L2 > Umax1 4 Voltage L2 < Umin2 8 Voltage L2 > Umax2 Voltage L1 1 Voltage L1 < Umin1 2 Voltage L1 > Umax1 4 Voltage L1 < Umin2 8 Voltage L1 > Umax2 Network frequency 1 Network frequency f < fmin1 2 Network frequency f > fmax1 4 Network frequency f < fmin2 8 Network frequency f > fmax2

C.86.1 (0 0 0 0 0 0 0 0) Free

Free

THD Voltage

Flicker intensity

Voltage L3

Voltage L2

Voltage L1

Network frequency

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6.5 Consumption check register C.86.2 In the consumption check register C.86.2 the overranges of current parameters are saved. The register can also be used as a status channel in the user load profile P.02. From the monitored values the average values are formed via the registration period of the user load profile P.02. At the end of a registration period the values are compared with the guidelines and if necessary saved in the appropriate registers. The voltage consumption check has 32 error flags which are represented by means of an 8 digit hexadecimal number. The sum of all overranges are saved in the registers C.88.32...63.

Event Value Meaning Maximum current exceeded 1 IL1 > Imax

2 IL2 > Imax

4 IL3 > Imax 6.6 Log boks 6.6.1 User log book P.200 In the user log book P.200 the following events are saved.

− Phase failure L1, L2, L3 − Manipulation of the terminal cover − Manipulation of the housing cover − Negative rotary field − Tariff switching times − Unpermitted read access − Unpermitted write access − Deleting of the log book − Current asymmetry − Voltage asymmetry

It is also possible to customise the configuration of the P.200 log book. In total up to 204 events can be saved. 6.6.2 Event log book P.210 In the event log book P.210 the following events are saved.

− Manipulation of the terminal cover − Manipulation of the housing cover − Manipulation from a magnetic interference field − PAR-Status active

It is possible to customise the configuration of the P.210 log book. Up to 32 different registers can be defined and up to 6 registers can be added to each event entry. Depending on the number of registers a maximum of 282 entries can be saved.

C.86.2 (0 0 0 0 0 0 0 0)

Free

Maximum current exceeded

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6.6.3 Event log book P.211 In the event log book P.211 the following events are saved.

− Events in the voltage quality register C.86.1 − Phase failure L1, L2, L3

It is possible to customise the configuration of the P.211 log book. Up to 32 different events can be defined and up to 6 registers can be added to each event entry. Depending on the number of registers, a maximum of 282 entries can be saved. 6.7 Recording external measuring variables The LZQJ is capable of registering other impulses from reference-, thermal-, water- or gas meters via 4 impulse inputs. From these inputs, energy values, maximum demand and load profiles can be formed. These measuring variables can then be read out via the LZQJ meter.

Figure 36: Application plan - recording load profiles form other media

Figure 37: Diagram - Recording of load profiles from several meters

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7 Certification relevant tests The PTB Regulations, volume 6 for electricity meters and additional equipment apply. 7.1 Certification- and test mode

Switching of the LED to the energy type which is to be measured takes place:

1) Directly at the meter − Entry into the test mode “tESt” − Readout of the table with a higher resolution

2) Via optical interface − Call-up the certification- and test mode takes place with the program

EMH-COMBI-MASTER 2000 − Readout of the table with a higher resolution

In the meter a register of the energy type to be tested can be called up on the display, e.g.:

− Active import 1.8.1 − Active export 2.8.1 − Reactive import 3.8.1 − Reactive export 4.8.1 Shortened no-load test

LED is continuously lit-up = no load, energy direction arrows are not displayed Shortened start-up test

The LED starts to flash. The energy direction arrows display the measured energy direction. 7.2 Test load Test loads for testing meters which have several nominal voltages (long-range) or a nominal voltage range1

This test is to be carried out at the upper and lower voltage rate which is specified on the nameplate, provided no other conditions are specified in the approval. Test loads for testing meters which have two nominal currents1

With the test of meters with two nominal currents (e.g. 5||1 A) the lowest test point (5% or 10%) is measured with the smaller nominal current. All other test points are measured using the higher nominal current. Testing of meters with two energy directions1

As long as no other regulations are specified in the approval documents meters which measure energy in both directions are measured in a way as if two separate meters for import and export are being dealt with.

1 Extract from the PTB Regulations, volume 6 for electricity meters and additional equipment.

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8 Appendix 8.1 OBIS (Object-Identification-System) The Object-Identification-System OBIS is described in IEC 62056-61 and is used for identification of measured values, e.g. electricity, water, gas and heat.

The OBIS-code system is divided into the value groups A to F.

Value range F: Pre-values Value range E: Tariff Value range D: Measuring type Value range C: Type of measuring variable Value range B: Channel number Value range A: Medium In the following table the codes commonly used with EMH electricity meters are described.

A B C D E F Meaning 0. 0. 0 Device address 0. 0. 1 Identification number 1 0. 0. 2 Identification number 2 0. 0. 3 Identification number 3 0 0. 4 Identification number 4 0. 0. 5 Identification number 5 0. 0. 6 Identification number 6 0. 0. 7 Identification number 7 0. 0. 8 Identification number 8 (customer address) 0. 0. 9 Identification number 9 (utility address) 0. 1. 0 Number of resets 0. 1. 1 Number of available pre-values 0. 1. 2. xx Pre-values reset time periods 0. 2. 0 Configuration program version number 0. 2. 1. 01 Parameter number 0. 2. 1. 02 Parameter setting 0. 2. 1. 50 Set number 0. 2. 2 Switching clock program number 0. 2. 3 Ripple control program number 0. 3. 0 LED constant active energy 0. 3. 1 LED constant reactive energy 0. 3. 3 Output constant active energy 0. 3. 4 Output constant reactive energy 0. 4. 1 Readout factor energy 0. 4. 2 Transformer factor current 0. 4. 3 Transformer factor voltage 1- x. 0. 7. y Channel x input pulse constants 0. 8. 0 Measuring period lengths 0. 8. 4 Registering period lengths 0. 9. 1 Time 0. 9. 2 Date 0. 9. 3 Weekday and Week number 0. 9. 5 Weekday 1- 1: C D E [*F] Electricity/Channel 1 1- 2: C D E [*F] Electricity/Channel 2 1- 3: C D E [*F] Electricity/Channel 3 1- 4: C D E [*F] Electricity/Channel 4 1- 5: C D E [*F] Electricity/Channel 5 1- 6: C D E [*F] Electricity/Channel 6 1- 7: C D E [*F] Electricity/Channel 7 1- 8: C D E [*F] Electricity/Channel 8 [A] [B] 1. D E [*F] Positive active power [A] [B] 2. D E [*F] Negative active power [A] [B] 3. D E [*F] Positive reactive power [A] [B] 4. D E [*F] Negative reactive power [A] [B] 5. D E [*F] Reactive power quadrant 1 [A] [B] 6. D E [*F] Reactive power quadrant 2

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A B C D E F Meaning [A] [B] 7. D E [*F] Reactive power quadrant 3 [A] [B] 8. D E [*F] Reactive power quadrant 4 [A] [B] 9. D E [*F] Positive apparent power [A] [B] 10. D E [*F] Negative apparent power [A] [B] C 2. E Cumulative register [A] [B] C 4. E Current average value [A] [B] C 5. E Last average value [A] [B] C 6. E [*F] Maximum demand [A] [B] C 8. E [*F] Energy register (Energy) [A] [B] C 9. E [*F] Energy feed [A] [B] C D 0. [*F] Tariff 0 (24 h active) [A] [B] C D 1. [*F] Tariff 1 [A] [B] C D 2. [*F] Tariff 2 [A] [B] C D 3. [*F] Tariff 3 [A] [B] C D 4. [*F] Tariff 4 [A] [B] C D 5. [*F] Tariff 5 [A] [B] C D 6. [*F] Tariff 6 [A] [B] C D 7. [*F] Tariff 7 [A] [B] C D 8. [*F] Tariff 8 21. 8. 0 Positive active power phase 1 energy register tariff 0 41. 8. 0 Positive active power phase 2 energy register tariff 0 61. 8. 0 Positive active power phase 3 energy register tariff 0 22. 8. 0 Negative active power phase 1 energy register tariff 0 42. 8. 0 Negative active power phase 2 energy register tariff 0 62. 8. 0 Negative active power phase 3 energy register tariff 0 83. 8. 1 Copper losses + energy register, tariff 0 83. 8. 2 Copper losses - energy register, tariff 0 83. 8. 4 Iron losses + energy register tariff 0 83. 8. 5 Iron losses - energy register tariff 0

1. 10. x Positive power phase energy register tariff x (overload consumption: 1.25 > 1.35.0.0)

196. 10. 0 Positive power phase energy register tariff 0 (overload consumption: 1.4.0 > 1.35.0.0)

31. 25 Instantaneous value current phase 1 51. 25 Instantaneous value current phase 2 71. 25 Instantaneous value current phase 3 32. 25 Instantaneous value voltage phase 1 52. 25 Instantaneous value voltage phase 2 72. 25 Instantaneous value voltage phase 3 1. 25 Instantaneous value active power total 21. 25 Instantaneous value active power phase 1 41. 25 Instantaneous value active power phase 2 61. 25 Instantaneous value active power phase 3 3. 25 Instantaneous value reactive power total 23. 25 Instantaneous value reactive power phase 1 43. 25 Instantaneous value reactive power phase 2 63. 25 Instantaneous value reactive power phase 3 9. 25 Instantaneous value apparent power total 29. 25 Instantaneous value apparent power phase 1 49. 25 Instantaneous value apparent power phase 2 69. 25 Instantaneous value apparent power phase 3 13. 25 Instantaneous value power factor total 33. 25 Instantaneous value power factor phase 1 53. 25 Instantaneous value power factor phase 2 73. 25 Instantaneous value power factor phase 3 14. 25 Instantaneous value line frequency 1. 35. 0. 01 Overload threshold 1 P+ 1. 35. 0. 02 Overload threshold 2 P+ 2. 35. 0. 01 Overload threshold 1 P- 2. 35. 0. 02 Overload threshold 2 P- 1. 36. 0. 01 Number of exceeds total threshold 1 P+ 1. 36. 90. 01 Number of exceeds since reset of threshold 1 P+ 1. 36. 0. 02 Number of exceeds total threshold 2 P+ 1. 36. 90. 02 Number of exceeds since reset of threshold 2 P+ 2. 36. 0. 01 Number of exceeds total threshold 1 P- 2. 36. 90. 01 Number of exceeds since reset of threshold 1 P- 2. 36. 0. 02 Number of exceeds total threshold 2 P- 2. 36. 90. 02 Number of exceeds since reset of threshold 2 P- 1. 58. [x] Test mode (x=0…8) 3. 58. [x] Test mode (x=0…8) C. 1. 0 Manufacturing number C. 2. 0 Number of parameterisation C. 2. 1 Time of last parameterisation C. 2. 2 Time of last switching program change C. 2. 3 Time of the last ripple control program change C. 3. In-/ output conditions C. 4. Internal operational conditions C. 5. Internal operational conditions C. 6. 0 Battery hours meter (x=0…8) C. 6. 3. 01 Voltage clock battery C. 7. 0 Number of voltgae failures 3 phase C. 7. 1 Number of voltage failures L1

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A B C D E F Meaning C. 7. 2 Number of voltage failures L2 C. 7. 3 Number of voltage failures L3 C. 8. x Operating hour counter tariff x C. 50. 0 Meter operating hours C. 51. 4 Time of last DCF synchronisation C. 51. 9 Time of last GPS synchronisation C. 52. 0 Phase information C. 52. 7 Event counter magnetic manipulation C. 52. 8 Time counter magnetic manipulation C. 54. 0 Ripple control receiver relay position C. 54. 7 Event counter negative active power C. 54. 8 Time counter negative active power C. 69. 0 Overconsumption threshold1, positive active power C. 69. 1 Overconsumption threshold 1, negative active power C. 69. 2 Overconsumption threshold 2, positive active power C. 69. 3 Overconsumption threshold 2, negative active power C. 69. 4 Equivalent resistance conduction losses C. 69. 5 Equivalent resistance transformer losses C. 69. 7 Threshold tan(phi) C. 75. 0 Access protection settings C. 75. 1 Access protection settings C. 75. 2 Access protection settings C. 75. 3 Access protection settings C. 80. 0 Load disconnection C. 80. 1 Release of load connection C. 80. 2 Load connection C. 86. 0 Installation check register C. 86. 1 Voltage check register C. 86. 2 Consumption register C. 86. 5 Radio status register C. 86. 6 Input status register C. 86. 7 Output status register C. 87. 0 Bit mask installation check register C. 87. 1 Bit mask voltage check register C. 87. 2 Bit mask consumption register C. 88. x Event counter for the network quality (x=00…31) C. 88. 96 Monitoring time counter for the network quality C. 88. 97 Monitoring time counter for the network quality C. 88. 98 Time - start of the monitoring C. 90. 0 Check sum PAR C. 90. 1 Check sum SET C. 90. 2 Check sum ROM C. 90. 3 Check sum system F. F Error register P. 01 Load profile P. 02 User load profile P. 98 VDEW log book P. 99 Certification relevant log book P. 200 User log book P. 210 Event log book P. 211 Event log book 81. 7. 00 Phase angle U1-U1 81. 7. 10 Phase angle U1-U2 81. 7. 20 Phase angle U1-U3 81. 7 21 Phase angle U2-U3 81 7. 02 Phase angle U3-U1 81. 7. 40 Phase angle U1-I1 81. 7. 51 Phase angle U2-I2 81. 7. 62 Phase angle U3-I3 94. 49. 2. 02 Standard data record recognition(Info register) 96. 6. 1 RTC-battery-charging condition (good/bad) 32. 5 Average value voltage phase 1 52. 5 Average value voltage phase 2 72. 5 Average value voltage phase 3 32. 23 Minimum value voltage phase 1 52. 23 Minimum value voltage phase 2 72. 23 Minimum value voltage phase 3 32. 26 Maximum value voltage phase 1 52. 26 Maximum value voltage phase 2 72. 26 Maximum value voltage phase 3 31. 5 Average value current phase 1 51. 5 Average value current phase 2 71. 5 Average value current phase 3 31. 26 Maximum value current phase 1 51. 26 Maximum value current phase 2 71. 26 Maximum value current phase 3 140. 5 THD phase 1 141. 5 THD phase 2 142. 5 THD Phase 3 143. 5 THD phase 1

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A B C D E F Meaning 144. 5 THD phase 2 145. 5 THD phase 3 146. 5 Flicker intensity Pst U phase 1 147. 5 Flicker intensity Pst U phase 2 148. 5 Flicker intensity Pst U phase 3 14. 5 Average value line frequency 32. 7. x x. Harmonics (% refering to the fundamental wave) in U phase 1 52. 7. x x. Harmonics (% refering to the fundamental wave) in U phase 2 72. 7. x x. Harmonics (% refering to the fundamental wave) in U phase 3 31. 7. x x. Harmonics (% refering to the fundamental wave) in I phase 1 51. 7. x x. Harmonics (% refering to the fundamental wave) in I phase 2 71. 7. x x. Harmonics (% refering to the fundamental wave) in I phase 3

Table 22: OBIS-codes

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8.2 Standard impulse constants The impulse constants for the LED and the impulse outputs are designed in accordance with VDEW-Specifications 2.1. Other values are possible depending on the customers requests.

LED

Imp./kWh(kvarh) Impulse output Imp./kWh(kvarh)

3x230/400 V, 5II1 A 10 000 5 000

3x58/100 V, 5II1 A 40 000 20 000

3x58/100 V, 1 A 100 000 50 000

3x58/100 V, 1(2) A 50 000 20 000

3x230/400 V, 10(60) A 1 000 500

3x230/400 V, 10(100) A 500 250

3 x400/690 V, 5II1 A 5 000 2 500

Table 23: Standard impulse constants with secondary meters If the meter has a long-range power supply and a certification relevant log book, the impulse constants for the LED(s), the impulse outputs and also impulse inputs can be changed at any time.

Changing the impulse constants Open “Direct” > “LZQJ-settings (VDEW2.1)...” > “Impulse constants output” or “Impulse constants input”

First of all read out the impulse constants set in the meter. Afterwards you can change the values and write them back into the meter.


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8.3 Error register The LZQJ has an error register. With the help of this register, functional errors in the meter are registered. Output of the error register takes place via the display and one of the readout lists. 8.3.1 Explanation of the individual error flags The LZQJ has 32 error flags which are represented by an 8 digit Hex-code.

F.F(00000000) No error F.F(00000001) Incomplete data protection F.F(00000002) Incomplete cumulation F.F(00000003) Incomplete data protection + Incomplete cumulation F.F(00000004) Invalid flash data (no valid data protection found) F.F(00000005) Incomplete data protection + invalid flash data F.F(00000006) Incomplete data protection + Incomplete cumulation F.F(00000007) Incomplete data protection + Incomplete cumulation + invalid flash data F.F(00000100) Error in par-cross-check sum F.F(00000200) Error in set-cross-check sum F.F(00000300) Error in par-cross-check sum + error in set-cross-check sum F.F(00000400) Error in code-cross-check sum F.F(00000500) Error in par-cross-check sum + error in code-cross-check sum F.F(00000600) Error in set-cross-check sum + error in code-cross-check sum F.F(00000700) Error in par-cross-check sum + error in set-cross-check sum +

error in code-cross-check sum F.F(00000800) Error in system-cross-check sum F.F(00000900) Error in par-cross-check sum + error in system-cross-check sum F.F(00000A00) Error in set-cross-check sum + error in system-cross-check sum F.F(00000B00) Error in par-cross-check sum + error in set-cross-check sum +

error in system-cross-check sum F.F(00000C00) Error in code-cross-check sum + error in system-cross-check sum F.F(00000D00) Error in par-cross-check sum + error in code-cross-check sum +

error in system-cross-check sum F.F(00000E00) Error in set cross-check sum + error in code-cross-check sum +

error in system-cross-check sum F.F(00000F00) Error in par-cross-check sum + error in set-cross-check sum +

error in code-cross-check sum + error in system-cross-check sum F.F(00004000) Error in certification relevant log book F.F(00008000) Error in calibration-cross-check sum F.F(0000C000) Error in certification-relevant log book + error in calibration-cross-check sum F.F(08000000) Time basis error F.F(00008800) Error in system-cross-check sum and error in the calibration-cross-check sum F.F(00000800) Error in system-cross-check sum F.F(00008000) Error in calibration-cross-check sum F.F(08000002) Incomplete cumulation and time basis error F.F(00000002) Incomplete cumulation F.F(08000000) Time basis error

Table 24: Error examples 8.3.2 Clearing the error register To clear the error register use the W5-write command F.F(). To be able to execute this command the meter must be in the parameterisation status. After carrying out the W5-command the parameterisation status is switched off.

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8.4 Software 8.4.1 EMH-COM EMH-COM is a modular developed software which enables communication between a readout device (e.g. PC or laptop) and EMH meters. The software is designed especially for starting up the meter, reading out data from the meter and also for changing the basic settings. Due to the modular set-up, the software can be tailored directly to the customer’s requests.

The most important functions of the programs are:

− Reading out of meter data − Graphical load profile display − Setting the clock − Modem function (optional) − Tariff settings for different meter (optional) − Send write command (optional) 8.4.2 EMH-COMBI-MASTER 2000 The EMH-COMBI-MASTER 2000 contains all functions of the EMH-COM program and allows in addition the configuration of meters from the series LZQJ.

The most important functions of the programs are:

− All functions contained in the EMH-COM software − Configuration of meters − Setting of transformer ratios and digitness with transformer meters − Further optional functions such as readout of the network quality and harmonics

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8.4.3 EMH-Mobile EMH-Mobile is a mobile and manageable tool for starting up and reading out electricity meters on location. EMH-Mobile consists of a PDA (Personal Digital Assistant) and an optical communication adapter (Bluetooth-OKK). With both devices, a wireless communication is possible via a Bluetooth-interface

Figure 38: EMH-Mobile The software EMH-Mobile is installed on the PDA for communication with meters. Special features of the software include “Installation check” (possible with all EMH meters with a service table) and also the readout of electronic household meters eHZ. Via the “Installation check” the meter connection can be easily checked. Connection errors can therefore be detected on location.

Figure 39: EMH-Mobile - Table 1 Figure 40: EMH-Mobile - Installation check

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8.5 Basic operation of the LZQJ 8.5.1 Overview In the following you receive a short overview on the operation of the LZQJ. Further support can be found in the user manual EMH-COMBI-MASTER 2000. − Possibilities of meter communication (page 83 onwards)

o Communication via the optical data interface o Communication via the electrical interface(s)

− Basic settings before communication (page 84 onwards)

o General settings (interface, passwords and meter address) o Modem settings o Setting of date and time o Setting of the baud rate

− Read out of the meter (page 87 onwards)

o Readout of tables 1 - 3 and the service table o Readout of load profiles o Read out of the operation log book o Read out of the certification relevant log book o Read out of the user log book o Read out of the event log books o Commenting the readout tables o Conversion of the load profile data

− Processing of readout data (page 93 onwards)

o Opening and saving of files e.g. readout tables, load profiles (also converted), protocol files etc.

o Transfer of set-, parameterisation-, tariff- and ripple control files o Ripple control files o Execution of read- or write commands o Graphic display of load profiles o Export of load profile data

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8.5.2 Possibilities of meter communication In the following, the communication between a readout device and a meter via the optical- or electrical interface are described. 8.5.2.1 Communication via optical interface

The optical communication adapter OKK enables communication between a readout device (e.g. PC or laptop) and EMH meters. On the meter the connection is to the optical data interface D0 and on the PC, depending on the version, the connection is to a COM-port or to a USB interface.

Connection of the OKK: Connect the optical communication adapter OKK to a free COM-Port or a free USB interface on your PC. If you have an OKK with USB connection then a special USB driver must be installed. The driver can be found on the CD-ROM which is included in the delivery with the OKK. Tips for the installation of the driver can also be found on the CD-ROM.

Note: Before communication can take place with the meter the interface must be configured under “Setting” > “Program settings...” >. (see 8.5.3.1 General settings). 8.5.2.2 Communication via electrical interface

Communication with the meter via the connection PC-modem-meter modem (remote meter read out) requires the definition of some parameters (see 8.5.3.2 Modem settings).

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8.5.3 Basic settings before communication 8.5.3.1 General settings

Once the optical communication adapter or modem line has been set up correctly you still need to set the correct settings in EMH-COMBI-MASTER 2000:

− COM-Port, to which to an OKK is connected − Baud rate − Login-password − W5-password − Meter address

Click “Setting” > “Program settings...” > “General”

“Port” Setting the COM-Port when using an optical communication adapter OKK.

Note: In order to determine the COM-Port when using an OKK with USB connection take a look at “Start” > “Settings” > “System control” > “System-[Hardware]-Device manager”. Further information on this can be found on the CD-ROM which is included in the delivery of the optical communication adapter.

“Baud rate” Setting the interface speed

Note: When using an OKK you must always use “Mode C”.

“Bluetooth OKK” Activate this checkbox when using a Bluetooth-OKK.

“Login-password” Input of the login-password

With activation a password is sent to the meter when logging in. The password is saved encoded together with the program settings.

“W5-password” Input of the W5-password

Certain set commands (e.g. setting the clock, writing identity numbers) are only sent to the meter together with the W5 password. The pre-setting 00000000 only has to be changed if a different password was agreed on.

“Meter-address” Input of the meter-address

This information is only necessary if the meter has a meter-address. The meter-address only applies to the meters electrical interface and therefore is only used with a remote readout or a special solution. The meter-address can by found by reading out the service table. The OBIS code for the meter-address is 0.0.0.

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8.5.3.2 Modem settings

To be able to communicate with the meter via a modem line the following settings must be made:

− Entry of the name and telephone number − Definition of the PC-modem − Definition of the meter modem (if necessary with password) Click “Setting” > “Program settings...” > “Modem”

Field “Phone number” Entry of the telephone number of the meter modem which is to be called.

Note: If a number for an outside line is necessary (often with telephone sets), this must be at the front of the telephone number. Then enter a “w”. The “w” causes a short dialing break after reaching the network before dealing further. If “w” does not operate properly then please contact the telephone administrator and ask for the interval signal.

To insert a new row click on “New”.

In order to delete a row click on the row and then on „Delete“.

“Local modem …” Selection of the PC modem

The modems which are most frequently used are included in the list. If your modem is not listed then select the setting “allg. Hayes-Modem;AT&FE0X3”. This setting functions with most types of modems.

Field “Meter modem selection” Selection of the meter modem

EMH-COMBI-MASTER 2000 supports meter modems from the manufacturer Dr. Neuhaus (ZDUE), Görlitz (ENC 280), Elster (DM 100) and EMH (Sparkline II, VARIOMOD) and others.

As a rule, for simple, transparent modems it is sufficient to activate “Auto-Transparent modem”. In the field Modem-Timeout 90 s are entered as a standard. This information causes the program to automatically interrupt the connection if it is “faulty”. It is not recommended to select a smaller value. For meter modems with a password protection, the password can be entered in the field “Modem password”. If there is no password activated in the meter modem, the field stays empty.

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8.5.3.3 Setting date and time

In order to send the PC-time and PC-date to the meter to synchronise the meter proceed as follows:

Click “Direct” > “Set clock” > “Write”

It is also possible to read out the time and date from the meter. To do this click on “Read”. 8.5.3.4 Setting baud rate

To set the start- and data baud rate for the external interface proceed as follows:

Click “Direct” > “Baud rate...” >

To begin with activate the option box “VDEW 2.1”. Now click on “Read” to read out the start- and data baud rate. Afterwards you can change the settings and send them to the meter by clicking on “Write”.

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8.5.4 Reading out the meter 8.5.4.1 Reading out the tables

You can read out the following tables:

− Table 1: Billing data − Table 2: Load profile − Table 3: EMH-internal data − Service-Table: Service data (instantaneous values) Click “Readout” > “Table 1”/“Table 2”/“Table 3”/“Service table”

At the end of every meter read out a BCC (Block Character Check) takes place. With this BCC, by means of a checksum sent by the meter, a check is carried out to see if the meter read out was correct (Announcement BCC = xx OK). With a faulty data readout an announcement appears at the end of the readout that the sent BCC is not the same as the calculated BCC. The readout is displayed in red.

. To save the tables click on “Readout” > “Save”. Now select the directory where you want to save the file. In the field “File name” enter the name of the file and select in the field “Files of type” - “Readout files (*.tab)”. Then click on “Save”.

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8.5.4.2 Reading out load profile data

Click “Readout” > “P.01 Standard LP” or “P.02 User LP…”

“Start date” Set the start date of the load profile to be read out, start time is 00:00 o’clock

“End date” Set the end date of the load profile to be read out, end time is 24:00 o’clock

“Read out compressed” Read out the compressed load profile

This function can only be used if the meter supports the reading out of compressed load profiles.

“Read out complete” Read out the complete load profile

The readout of the load profiles can take a long time depending on the size and number of channels.

“Read out identity number In addition to the load profile, the selected meter address or the identity number from the additionally” selection list is read out in order to be able to assign the load profile to the meter at a later date.

“Read out R6 block by block” Activate this option to read out the load profile block by block. In the corresponding dropdown box you can enter the number of rows which should be read out within a readout cycle. A block by block readout makes sense when you read out the load profile via the telephone- or GSM network. This is to avoid destruction of the load profiles due to interference in the network.

Button Read out single load profile channels, selection leads to extension of the window.

First of all read out all available channels via the button “read out available channels”. Then you can select the load profile channels to be read out by clicking on the checkbox. To read out the marked load profile channels click on “OK”.

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8.5.4.3 Reading out operation log book P.98

Click “Readout” > “P.98 Log book..”

“Start date” Set the start date of the log book which is to be read out, start time is 00:00 o’clock

“End date” Set the end date of the log book which is to be read out, end time is 24:00 o’clock

“Read out complete” Read out the complete log book

“Read out identity numbers In addition to the log book entries, the selected meter address or identity number in the additionally” selection list is read out in order to be able to allocate the log book entries to the meter at a later date.

“Read out R6 block by block” Activate this option to read out the load profile block by block. In the corresponding dropdown box you can enter the number of rows which should be read out within a readout cycle. A block by block readout makes sense when you read out the load profile via the telephone- or GSM network. This is to avoid destruction of the load profiles due to interference in the network.

8.5.4.4 Reading out certification relevant log book P.99

Click “Readout” > “P. 99 Certification relevant log book”

In the certification relevant log book changes of the LED-impulse constants and also of the impulse values from the P- and Q-output are saved. Altogether a maximum of 40 entries are contained in the certification relevant log book.

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8.5.4.5 Reading out the user log book P.200

Click “Readout” > “P.200 User log book”

8.5.4.6 Reading out event log book P.210

Click “Readout” > “P.210 Event log book” 8.5.4.7 Reading out event log book P.211

Click “Readout” > “P.211 Event log book” 8.5.4.8 Commenting readout tables

To explain the readout data you can comment the tables, load profiles and log books row by row.

Click “Readout” > “Comment”

Without comments: With comments:

The tables, load profiles and log books are always read out without comments. Therefore a comment is only possible after the readout.

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8.5.4.9 Converting load profiles

Conversion of load profile data as preparation for data export.

After reading out a load profile the readout looks as follows:

Click “Readout” > “Convert” First of all the following window opens:

In the selection box “Transformer factor“ you can set a transformer factor. This setting has an effect on the scaling of the Y-axis in the display. Provided that you use the programs control centre you can search for the transformer factor belonging to a customer/meter. For this click on “Search for transformer factor in control centre”. The identity number is then searched for in the control centre data to determine the transformer factor. If no identity number is found in the control centre data, the following window appears:

The transformer factor then has to be set manually in the dropdown box.

Note: The transformer factor only effects the graphic load profile display and the printout. The load profile conversion is not affected by this. Here a factor for export can be specified independent of the graphic display.

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After conversion the load profile data looks as follows:

Attention: After a conversion to data export a graphical load profile display is no longer possible! Export of load profile data

To export the load profile click on “Readout” > “Save...”. Select the index where the file should be saved and enter the name of the file in the field “File name”. After this, select the file type load profile export (*.txt) and click on “Save”. Afterwards you can import the file in a spreadsheet program e.g. MS Excel (for this see chapter 8.5.5.6 Export of load profile data page 97 onwards).

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8.5.5 Processing the readout data 8.5.5.1 Opening files

Opening files e.g. readout tables, load profiles (also converted), protocol files etc.

Click “Readout” > “Open”

8.5.5.2 Saving files

Saving files e.g. readout tables, load profiles (also converted), protocol files etc.

Click “Readout” > “Save”

8.5.5.3 Transferring files

Transferring saved set-, parameterisation-, tariff- and ripple control files

Click “File” > “Transfer...”

Click “Transfer”. Select the file which is to be transferred and click on “Open”. The file is now transferred to the meter. To close the window click on “Cancel”.

Note: Pay attention that in the selection field “File type” the type of file is selected which you want to transfer. Otherwise the file to be transferred will not be displayed in the window.

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8.5.5.4 Executing read- and write commands

Sending read- or write commands to the meter

Click “Direct” > “Single commands...”

1. Example: Read out time from the meter Click “Direct” > “Single commands... ” > “Read command”

2. Example: Send identity number to the meter Click “Direct” > “Individual commands... ” > “Write command”

8.5.5.5 Graphic display of load profiles

Graphical display of load profile data

Click “Readout” > “Graphic display”

The x-axis (abscissa) describes the time, the y-axis (ordinate) the performance. For every channel a separate scaling of the y-axis can be shown. This must be pre-defined under “Readout” > “Graphic display” > “Channel” > “Selection”. With the horizontal scrolling beam you can move the time axis. With the sliding controller “Zoom” which can be found in the lower area of the window it is possible to make the viewed time frame of the load profile curve longer or shorter. If several days are shown in the graphic then you can change over to a daily display via a double click on one of the shown dates. The cursor always marks a measuring period duration which can be moved with the cursor buttons and also Pic , Pic , Pos 1 and End. When you move the cursor in the main area of the window, the relevant load profile values appear in the field below this with information about the time stamp and the status entries.

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Menu bar of the graphic display

“Graphic” > “Print” Prints the content of the window

“Graphic” > “Exit” Closes the graphic display, return to the main window

“Channel” After activation of the menu option “Channel”, the following window appears:

Via the buttons you can “activate all channels” or “deactivate all channels”. Via the checkboxes you can however also activate or deactivate individual channels.

“In the load profile graphic individual scaling of each channel”

In the graphic load profile display the scaling of the y-axis is separately shown for every channel.

“Set zero point of the Y-axis automatically”

In the graphic load profile display the bottom limit of the y-axis is modified to reach a higher resolution.

“Scaling only in the visible area”

Representation of the load profile is scaled to the window size depending on the zoom setting.

“Season display and evaluation”

Representation of the load profile is scaled to the window size depending on the zoom setting.

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“Transformer factor” Multiplication of the load profile data with a transformer factor

Via the dropdown box you can set a transformer factor for the load profile display. This setting effects the scaling of the y-axis in the display. Provided that you use the control centre of the program you can search for the transformer factor which belongs to a meter/customer. For this click on “Search for transformer factor in the control centre”. The identity number is then searched for in the control centre data to determine the transformer factor. If no identity number is found in the control centre the following window appears. The transformer factor then has to be set manually in the dropdown box.

Note: The transformer factor only effects the graphical load profile display and the print. The load profile conversion is not affected by this. Here a factor for export can be specified independent of the graphic display.

“Total evaluation” “Complete LP ”

Here it is possible to “Display” and “Print” the evaluation of the complete load profile channel by channel.

“Total evaluation” “Displayed LP ”

Here a channel by channel evaluation of the load profile in the area displayed in the window takes place. The functions “Display” and “Print” are also available here.

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8.5.5.6 Export of load profile data

Before export, the load profile files must be converted (see page 91). After this, save the data under “Readout” > “Save...” as “Load profile export (*.txt)”. The exported load profile file (here called “Musterlastprofil”) looks as follows when opened:

In order to import the file “Musterlastprofil” in Excel and to represent the load profile graphically proceed as follows:

1. Open Excel.

2. Click on “File” > “Open”.

3. Select the file type “All files(*.*)”. The file “Musterlastprofil” can now be seen.

4. Open the file “Musterlastprofil”.

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5. In the following window click on “Fertig stellen”.

6. Mark the desired display area, e.g. 1 day over the columns A to E.

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7. Now call up the “Diagramm-Assistent” and select the “Linie”.

8. Click on “Weiter” until the following window appears:

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9. Click on “Weiter” until the following window appears:

In the box “Diagrammtitel”, enter for example “Lastgang”, in the box Rubrikenachse (X) “Zeit” and in the field Größenachse (Y) “P+”, “Q+”. Then click on “Weiter”.

10. In the following window you must decide if the diagram should be included on the

active page or if a new page should be created for the diagram. Then click on the “Fertig stellen”.

11. In this example we have decided to create a new page. Excel has created a new page for the title “Diagramm” on which the load profile is graphically represented.

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8.6 EC Declaration of conformity The manufacturer

EMH Elektrizitätszähler GmbH & Co KG Südring 5 D-19243 Wittenburg

certifies that the following products

Product designation:

Electricity meter LZQJ… conform with the specification of the EC Directive 93/68/EC. Statement relating to EMC Directive (89/336/EC) The electricity meter conforms to the requirements of the EC Directive “Electromagnetic compability” 89/336/EC, including those specified in standards EN 55022+A1 and EN 61000-3-2, -4-2, -3, - 4, -5, -6, -11, -6-2. The following standards are in use: EN 62052-11 Electricity metering equipment (AC) - General requirements, tests and test

conditions - Part 11: Metering equipment

EN 62053-21 Electricity metering equipment (a.c.) - Particular Requirements - Part 21: Static meters for active energy (classes 1 and 2)

EN 62053-22 Electricity metering equipment (a.c.) - Particular requirements - Part 22: Static meters for active energy (classes 0,2 S and 0,5 S)

EN 62053-23 Electricity metering equipment (a.c.) - Particular requirements - Part 23: Static meters for reactive energy (classes 2 and 3)

Wittenburg, 2006-06-29

Norbert Malek

(Place, date) Managing Director

Documents

Product Manual LZQJ PHB E 3.10