ISKRAEMECO MT880 Manual

MT880
Installation and maintenance manual

V2.00 –English i/vii INTRODUCTION
MT880
Installation and maintenance manual
Document code:
EAM 020.615.636
Version:
V2.00
Language:
English
Date:
24.02.2015
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© 2015 ISKRAEMECO, d.d. All rights reserved.
No part of this document can be copied, reproduced, transferred, distributed, presented or stored in any
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as expressly permitted in writing by Iskraemeco, d.d.
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d.d. All other trademarks are the property of their respective owners. All rights reserved.
______________________________________________________________________________________
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This manual was written for installation and maintenance of MT880 meter. This manual, including all
documentation incorporated by reference herein such as documentation provided or made available at
Iskrameco d.d. web site, is provided or made accessible "AS IS" and "AS AVAILABLE" and without
condition, endorsement, guarantee, representation, or warranty of any kind by Iskraemeco d.d. and its
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V2.00 –English ii/vii INTRODUCTION
MT880
Installation and maintenance manual
MT880-D2
3x110/190 V ... 3x240/415 V, 5(120) A
MT880-T1
3x57,7/100 V ... 3x290/500 V, 2,5(20) A
Three-phase multi-function four-quadrant electronic meter with
three measuring systems
Meter installation procedure
RECOMMENDATION
General
Consider valid safety regulations; Voltage on Feed-through and auxiliary terminals can be
lethal!
Meter installation must be performed according to corresponding legislation and safety
directives.
Meter installation may be performed by authorized personnel only.
In case of any problem, use this Installation and maintenance manual, the MT880 User
manual and contact the authorized ISKRAEMECO support.
READ CAREFULLY AND STRICTLY FOLLOW THE SAFETY INSTRUCTIONS
(SEE CHAPTER 1).

V2.00 –English iii/vii INTRODUCTION
MT880
Installation and maintenance manual
i. About the Installation and maintenance manual
On the Installation and maintenance manual are written installation procedures for MT880 meters, intended
for technically qualified personnel, responsible for electrical energy measurements.
The Installation and maintenance manual provides you all necessary information for safe installation and
maintenance of MT880 meters.
ii. Definitions, Acronyms and Abbreviations
A
Ampere
dBm
Decibel relative to one milliwatt
CT
Current transformer
DC
Direct current
DIN
German Institute for Standardization (orig. Deutsches Institut für Normung)
EDGE
Enhanced Data rates for GSM Evolution
FF
Fatal Fault
GND
Ground
GPRS
General Packet Radio Service
GSM
Global System for Mobile Communications
HSDPA
High-Speed Downlink Packet Access
Hz
Hertz
IEC
International Electrotechnical Commission
ID
Identification
IR
Infrared
kWh
kilo Watt-hours
LCD
Liquid Crystal Display
LED
Light Emitting Diode
mA
milli Ampere
N
Neutral
Nm
Newton metre
NV
Non-volatile
OBIS
OBject Identification System
PDP
Packet Data Protocol, a packet transfer protocol used in wireless GPRS/HSDPA networks.
PPE
Personal Protection Equipment
RAM
Random Access Memory
RF
Radio frequencies
RTC
Real Time Clock
SIM
Subscriber Identification Module
SMA
SMA (SubMiniature version A) connector - type of Coaxial RF antenna connector
SQ
Signal Quality
UMTS
Universal Mobile Telecommunications System
V
Volt
Vac
Volts Alternating Current
Vdc
Volts Direct Current
VT
Voltage transformer
WEEE
Waste Electrical and Electronic Equipment

V2.00 –English iv/vii INTRODUCTION
MT880
Installation and maintenance manual
iii.Reference documents
MT880 –User manual
iv.Versioning
Date
Version
Update
25.10.2013
V1.00
First version of document
21.01.2014
V1.03
Note about wrong phase sequence was added (Chapter 0.
Voltage and current indicators per phases).
Chapter 5.1. Errors was added.
27.01.2014
V1.04
At the end of the chapter 3.2. Terminal block –integrated version
Warning note about mandatory termination of unused RS485 meter
interfaces was added.
16.10.2014
V1.10
Chapter 3.4. COP5 cover was added.
In the chapter 4.3. step 8 was added.
24.02.2015
V2.00
Extended voltage range added.
Extended current range added.

V2.00 –English v/vii INTRODUCTION
MT880
Installation and maintenance manual
TABLE OF CONTENTS
I. ABOUT THE INSTALLATION AND MAINTENANCE MANUAL......................................................... III
II. DEFINITIONS, ACRONYMS AND ABBREVIATIONS......................................................................... III
III. REFERENCE DOCUMENTS ................................................................................................................IV
IV. VERSIONING ........................................................................................................................................IV
TABLE OF CONTENTS....................................................................................................................................V
INDEX OF FIGURES.......................................................................................................................................VII
INDEX OF TABLES ........................................................................................................................................VII
1. SAFETY INFORMATION ....................................................................................................................... 1
1.1. Responsibilities ................................................................................................................................... 1
1.2. Safety instructions............................................................................................................................... 2
1.2.1. Handling and mounting.............................................................................................................. 2
1.2.2. Meter installation procedure ...................................................................................................... 3
1.2.3. Meter maintenance.................................................................................................................... 7
2. METER TECHNICAL INFORMATION................................................................................................... 8
2.1. External and fixing dimensions ........................................................................................................... 8
2.1.1. Meter dimensions ...................................................................................................................... 8
2.2. Name plate.......................................................................................................................................... 9
2.2.1. Meter type designation ............................................................................................................ 11
2.2.2. Communication module designation ....................................................................................... 12
2.3. Connection diagrams ........................................................................................................................ 13
2.4. Voltage and current connection ........................................................................................................ 16
2.5. External power supply....................................................................................................................... 16
3. METER DESCRIPTION........................................................................................................................ 17
3.1. Terminal block –modular version..................................................................................................... 18
3.1.1. Terminal designation ............................................................................................................... 19
3.1.2. Current (1-3, 4-6, 7-9) and voltage terminals (2,5,8 and 11 as Neutral) ................................. 20
3.1.3. Inputs, Outputs and 5A bistable relay...................................................................................... 20
3.1.4. Additional RS232 or RS485 terminals..................................................................................... 20
3.1.5. Communication module inserting/removing ............................................................................ 21
3.1.6. Inserting/removing SIM card.................................................................................................... 22
3.1.7. Antenna type............................................................................................................................ 23
3.2. Terminal block –integrated version.................................................................................................. 24
3.3. Terminal block of direct connected meter D2 ................................................................................... 24
3.4. COP5 cover....................................................................................................................................... 26
3.5. Label for CT/VT ratio, manual billing reset button............................................................................. 27
3.6. LCD display....................................................................................................................................... 28
3.6.1. Alphanumeric filed 1 ................................................................................................................ 28
3.6.2. Alphanumeric filed 1 ................................................................................................................ 28
3.6.3. Energy flow direction indicator................................................................................................. 28
3.6.4. Voltage and current indicators per phases.............................................................................. 29
3.6.5. Notification field........................................................................................................................ 29
3.6.5.1. Modem data transfer............................................................................................................ 29
3.6.5.2. State of the load control relay.............................................................................................. 30
3.6.5.3. Battery status....................................................................................................................... 30
3.6.5.4. Alarm indicator..................................................................................................................... 30
3.6.5.5. GSM signal status................................................................................................................ 30
3.6.5.6. Load control indicator .......................................................................................................... 31
3.6.5.7. Authentication/decryption failure indicator........................................................................... 31
3.6.6. Physical unit field of the currently displayed data.................................................................... 31
3.6.7. Cursors .................................................................................................................................... 32
4. METER INSTALLATION...................................................................................................................... 34
4.1. Fixing meter on the surface............................................................................................................... 34
4.2. Preparing of cables ........................................................................................................................... 35
4.2.1. Power (main) cables................................................................................................................ 35
4.2.2. Auxiliary voltage terminals, external power supply and additional RS232/RS485 terminals .. 36
4.2.3. Input, outputs, 5A relay terminals and terminals on communication module.......................... 36
4.3. Wiring of meters................................................................................................................................ 36

V2.00 –English vi/vii INTRODUCTION
MT880
Installation and maintenance manual
5. CHECKING METER FUNCTIONS....................................................................................................... 37
5.1. Errors................................................................................................................................................. 37
5.1.1. Errors classified by severity and required actions................................................................... 37
5.1.2. Description of errors and required actions............................................................................... 38
6. METER OPERATION MONITORING .................................................................................................. 40

V2.00 –English vii/vii INTRODUCTION
MT880
Installation and maintenance manual
INDEX OF FIGURES
Figure 1: Overall and fixing dimensions of MT880 meter....................................................................................................8
Figure 2: Name plate of modular version MT880 meter (MID) ............................................................................................9
Figure 3: Name plate of modular version MT880 meter (IEC)...........................................................................................10
Figure 4: Meter type designation on the name plate of MT880.........................................................................................10
Figure 5: Communication module designation on the name plate.....................................................................................12
Figure 6: 3-phase 3-wire and 3-phase 4-wire connection..................................................................................................13
Figure 7: Meter connection diagram –CT, CT/VT connection of the meter in 3-phase 4-wire system..............................13
Figure 8: 3-phase 3-wire indirect external Aaron connection diagram ..............................................................................13
Figure 9: 3-phase 4-wire connection diagram for direct connected meter.........................................................................14
Figure 10: 3 system meter, programmed and connected as two system meter ................................................................14
Figure 11: 3-phase 3-wire two- system connection diagram for indirect connected meters..............................................14
Figure 12: Meter settings for 3-phase 3-wire two- system connection ..............................................................................15
Figure 13: Meter nominal voltage settings.........................................................................................................................16
Figure 14: MT880..............................................................................................................................................................17
Figure 15: Terminal block –modular version ....................................................................................................................18
Figure 16: Designation of terminals...................................................................................................................................19
Figure 17: Location of terminals........................................................................................................................................19
Figure 18: Combi Pozidriv + Slot type of screw.................................................................................................................20
Figure 19: Communication module ...................................................................................................................................21
Figure 20: Removing of communication module...............................................................................................................21
Figure 21: Blind module box..............................................................................................................................................21
Figure 22: Inserting of communication module..................................................................................................................22
Figure 23: Inserting SIM card............................................................................................................................................22
Figure 24: GSM SMA antenna connector..........................................................................................................................23
Figure 25: Types of antennas............................................................................................................................................23
Figure 26: Terminal block-integrated version....................................................................................................................24
Figure 27: Meter terminal designation for integrated version ............................................................................................24
Figure 28: UI splitter..........................................................................................................................................................24
Figure 29: Holes for separating voltage and current circuits .............................................................................................25
Figure 30: Inserting UI splitter into opened holes..............................................................................................................25
Figure 31: COP5 cover......................................................................................................................................................26
Figure 32: Fitted and sealed COP5 cover on the MT880 meter........................................................................................26
Figure 33: Label for CT/VT ratio........................................................................................................................................27
Figure 34: Fixing of Label for CT/VT ratio .........................................................................................................................27
Figure 35: Manual billing reset button ...............................................................................................................................27
Figure 36: All segments of LCD display ............................................................................................................................28
Figure 37: Notification field on display...............................................................................................................................29
Figure 38: Antenna sign....................................................................................................................................................31
Figure 39: Communication module CM-v-3 without SIM card...........................................................................................31
Figure 40: Example of flags and labels on the front plate..................................................................................................33
Figure 41: Connection diagram inside of the terminal cover .............................................................................................34
Figure 42: Hanger of MT880 .............................................................................................................................................34
Figure 43: Proper prepared cables....................................................................................................................................35
Figure 44: Cables preparation for CT and direct connected meters..................................................................................35
INDEX OF TABLES
Table 1: Explanation of meter type designation ................................................................................................................11
Table 2: Explanation of communication module designation.............................................................................................12
Table 3: Parameters of terminals......................................................................................................................................20
Table 4: Additional terminals designation of equipped meter with RS232 or RS485.........................................................20
Table 5: Battery status ......................................................................................................................................................30
Table 6: Information about meter registration status.........................................................................................................30
Table 7: The strength of received GSM signal ..................................................................................................................31
Table 8: Definition and explanation of available display cursors.......................................................................................32

V2.00 –English 1/40 1. SAFETY INFORMATION
MT880
Installation and maintenance manual
1. SAFETY INFORMATION
Safety information used in this Installation and maintenance manual is described with the following symbols
and pictograms:
DANGER: for a possibly dangerous situation, which could result in severe physical injury
or fatality –attention to a high risk hazards.
WARNING: attention to a medium risk hazards.
CAUTION: for a possibly dangerous situation, which could result in minor physical injury
or material damage - attention to a low risk hazards.
Operating instruction: for general details and other useful information.
All safety information in this Installation and maintenance manual describes the type and source of danger; it
is possible consequences and measures to avoid the danger.
1.1. Responsibilities
The owner of the meter is responsible to assure that all authorized persons who work with the meter read
and understand the parts of the User manual and Installation and maintenance manual that explains the safe
handling with the meter.
The personnel must be sufficiently qualified for the work that will be performed. The installation personnel
must possess the required electrical knowledge and skills, and must be authorised by the utility to perform
the installation procedure.
The personnel must strictly follow the safety regulations and operating instructions, written in the individual
chapters in this Installation and maintenance manual and the User Manual.
The owner of the meter responds specially for the protection of the persons, for prevention of material
damage and for training of personnel.

V2.00 –English 2/40 1. SAFETY INFORMATION
MT880
Installation and maintenance manual
1.2. Safety instructions
1.2.1. Handling and mounting
At the beginning of installation at the metering point, the meter should be carefully taken out of the box
where it was packed. This should prevent the meter from falling as well as any other external or internal
damage to the device and personal injuries. Should such an incident occur despite all precautions the meter
may not be installed at the metering point as such damage may result in different hazards. In such case, the
meter needs to be sent back to the manufacturer for examination and testing.
CAUTION: The edges of the seals, sealing wires as well as some edges under (removed) terminal cover are
sharp!
CAUTION: The temperature of the terminal block of the connected and operating meter may rise; therefore
the temperature of the terminal cover may rise as well.
DANGER: In case of any damage inside the meter (fire, explosion...) do not open the meter.
CAUTION: The meter may be used only for the purpose of measurement for which it was produced.
Any misuse of the meter will lead to potential hazards.
WARNING: Safety measures should be observed at all times. Do not break the seals or open the meter at
any time!
It must be consulted in all cases where symbol is marked in order to find out the nature of the
potential hazards and any actions which have to be taken to avoid them.
The meter installation procedure is described in this Installation and maintenance manual. For safety
reasons the following instructions should be followed.
See the complete User manual for detailed technical features of MT880 meter and its intended use.