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Related Manuals for ISKRAEMECO MT880
Summary of Contents for ISKRAEMECO MT880
- Page 1 MT880 Installation and maintenance manual...
- Page 2 Iskraemeco shall not be liable for any type of damages related to this documentation or its use, or performance or non-performance of any software, hardware, service, or any third party products and services.
- Page 3 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).
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Page 4: Definitions, Acronyms And Abbreviations
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. -
Page 5: Reference Documents
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 Note about wrong phase sequence was added (Chapter 0. 21.01.2014 V1.03 Voltage and current indicators per phases). -
Page 6: Table Of Contents
MT880 Installation and maintenance manual TABLE OF CONTENTS ABOUT THE INSTALLATION AND MAINTENANCE MANUAL ............III DEFINITIONS, ACRONYMS AND ABBREVIATIONS ................. III III. REFERENCE DOCUMENTS ........................ IV VERSIONING ............................IV TABLE OF CONTENTS ............................ V INDEX OF FIGURES ............................VII INDEX OF TABLES ............................ - Page 7 MT880 Installation and maintenance manual 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 METER OPERATION MONITORING ....................40 V2.00 – English...
- Page 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....................
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Page 9: 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. -
Page 10: Safety Instructions
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. V2.00 – English 2/40 1. -
Page 11: Meter Installation Procedure
1.2.2. Meter installation procedure DANGER: The MT880 electricity meter is a device connected into the electricity network. Any unauthorized manipulation of the device is dangerous for life and prohibited according to the applicable legislation. Any attempt to damage the seals as well as any unauthorized opening of the terminal or meter cover is strictly forbidden. - Page 12 MT880 Installation and maintenance manual procedures, practical experience of that work, understanding the hazards which can arise during the work and the precautions to be observed, ability to recognize at all times whether it is safe to continue working. According to the basic principles, either the nominated person in control of the electrical installation or the nominated person in control of the work activity shall ensure that specific and detailed instructions are given to the personnel carrying out the work before starting and on completion of the work.
- Page 13 MT880 Installation and maintenance manual CAUTION: Do not attempt to install the meter before you have isolated the installation site from the network! DANGER: The relevant preliminary fuses must be removed before making any modifications to the installation, and kept safe until completing the work to prevent the unnoticed reinsertion.
- Page 14 MT880 Installation and maintenance manual The meter is intended to be mounted at an indoor metering point, in a meter cabinet, secured against the undesired access of unauthorized persons. Only scroll push button may be accessible from the outside. Do not expose meter surface to very high temperatures even though the surface is made of non-flammable plastics to prevent fire.
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Page 15: Meter Maintenance
MT880 Installation and maintenance manual 1.2.3. Meter maintenance No maintenance is required during the meter’s life-time. The implemented metering technique, built-in components and manufacturing procedures ensure high long-term stability of meters. Therefore no recalibration is required during entire meters life-time. -
Page 16: Meter Technical Information
IP protection level: IP54 Mass: MT880 – modular version: approx. 1,9 kg MT880 – integrated version: approx. 1,7 kg 2.1.1. Meter dimensions Figure 1: Overall and fixing dimensions of MT880 meter V2.00 – English 8/40 2. METER TECHNICAL INFORMATION... -
Page 17: Name Plate
Legend of Symbols and Markings CE (Conformité Européenne) mark accuracy class 0,5 3-phase 4-wire connection year of approval protection class IEC 62052-11 code of approval body Figure 2: Name plate of modular version MT880 meter (MID) V2.00 – English 9/40 2. METER TECHNICAL INFORMATION... -
Page 18: Figure 3: Name Plate Of Modular Version Mt880 Meter (Iec)
3-phase 4-wire connection Protection class IEC 62052-11 CE (Conformité Européenne) mark Figure 3: Name plate of modular version MT880 meter (IEC) Figure 4: Meter type designation on the name plate of MT880 V2.00 – English 10/40 2. METER TECHNICAL INFORMATION... -
Page 19: Meter Type Designation
MT880 Installation and maintenance manual 2.2.1. Meter type designation Meter Type designation is written on the name plate. (See Figure 4.) Meter type designation shows features related to the hardware equipment and are explained in Table 1. MT880–XXAnmRnmSnm–EnVn2LnmB11–MxK0x–Y-Hxx MT880 three-phase multi-function four-quadrant electronic meter with three measuring systems... -
Page 20: Communication Module Designation
Figure 5: Communication module designation on the name plate Communication module designation shows features related to the hardware equipment and are explained in Table 2. CM–n–3 communication module for MT880 meter n = 1, u, v the first communication interface n = 1... -
Page 21: Connection Diagrams
Installation and maintenance manual 2.3. Connection diagrams MT880 meters can be connected to the 3-phase 4-wire or 3-phase 3-wire networks (see Figure 6). All, direct, semi-direct (CT) as well as indirect (CT/VT) connections are supported. Connection diagram is usually located in the terminal cover. -
Page 22: Figure 9: 3-Phase 4-Wire Connection Diagram For Direct Connected Meter
MT880 Installation and maintenance manual Figure 9: 3-phase 4-wire connection diagram for direct connected meter Figure 10: 3 system meter, programmed and connected as two system meter Figure 11: 3-phase 3-wire two- system connection diagram for indirect connected meters NOTE! -
Page 23: Figure 12: Meter Settings For 3-Phase 3-Wire Two- System Connection
MT880 Installation and maintenance manual Figure 12: Meter settings for 3-phase 3-wire two- system connection V2.00 – English 15/40 2. METER TECHNICAL INFORMATION... -
Page 24: Voltage And Current Connection
(must be specified by the order!). There are 2 variants available regarding the maximum current: Imax = 10A for CT and CT/VT connection, Type MT880 – T1 … Imax = 120A for direct connected meter, Type MT880 – D2 …... -
Page 25: Meter Description
RTC control CT & VT label communication module (only in modular version) meter cover meter cover sealing screw sealing screw terminal cover terminal cover terminal cover sealing screw sealing screw Figure 14: MT880 V2.00 – English 17/40 3. METER DESCRIPTION... -
Page 26: Terminal Block - Modular Version
MT880 Installation and maintenance manual 3.1. Terminal block – modular version terminal cover open LEDs for modem & (TCO) sensor communication status SMA female antenna connector RS485 terminals (A,B,Gnd - doubled) outputs communication module locking/releasing inputs mechanism with sealing capabilities... -
Page 27: Terminal Designation
MT880 Installation and maintenance manual 3.1.1. Terminal designation Figure 16: Designation of terminals Location of inputs, outputs, auxiliary voltage, external power supply and RS232/RS485 terminals is shown in Figure 17. auxiliary voltage terminals 5A relay external power supply RS232 or... -
Page 28: Current (1-3, 4-6, 7-9) And Voltage Terminals (2,5,8 And 11 As Neutral)
MT880 Installation and maintenance manual 3.1.2. Current (1-3, 4-6, 7-9) and voltage terminals (2,5,8 and 11 as Neutral) Parameters of Indirect connected meter (T1) Direct connected meter (D2) terminals Screw type Combi Pozidriv + Slot (see Figure 18) Combi Pozidriv + Slot (see Figure 18) -
Page 29: Communication Module Inserting/Removing
Installation and maintenance manual 3.1.5. Communication module inserting/removing Modular version of the MT880 meter has removable communication module (see Figure 19). It can be removed or inserted; also it can be replaced with blind module box (see Figure 21). Figure 19: Communication module If you want to remove or change communication module (see Figure 19 and Figure 20): 1. -
Page 30: Inserting/Removing Sim Card
MT880 Installation and maintenance manual To insert a module (see Figure 22): 1. move locking mechanism to the “middle” position, where arrows are aligned in the line (step 1), 2. carefully insert the module (step 2), 3. press gently module down and move locking mechanism to the “locked” position (step 3). -
Page 31: Antenna Type
MT880 Installation and maintenance manual 3.1.7. Antenna type Actually any type of GSM SMA antenna type with male connector can be used. Figure 24: GSM SMA antenna connector However, type of the antenna must be chosen according to the type of the communication module and GSM signal level: ... -
Page 32: Terminal Block - Integrated Version
Input current and voltage terminals are by the default already connected together, moreover there are just main current and auxiliary voltage terminals available. However, those terminals can be also separated using a special tool – UI splitter, designed and manufactured by Iskraemeco (see Figure 28). Figure 28: UI splitter V2.00 –... -
Page 33: Figure 29: Holes For Separating Voltage And Current Circuits
MT880 Installation and maintenance manual With a screwdriver move hole protector on the left position and insert the UI splitter in opened holes. (See Figure 29 and Figure 30.) CAUTION DO NOT USE ANY OTHER TOOL, danger of voltage shock! -
Page 34: Cop5 Cover
(modular version) and external power supply terminals are still accessible. (See Figure 31 and Figure 32.) Figure 31: COP5 cover Figure 32: Fitted and sealed COP5 cover on the MT880 meter NOTE! Only upon a special request by customer order COP5 cover can be delivered. -
Page 35: Label For Ct/Vt Ratio, Manual Billing Reset Button
MT880 Installation and maintenance manual 3.5. Label for CT/VT ratio, manual billing reset button Name plate is designed to insert two labels by the customer choice. Usually is used for CT/VT ratio. Size of the label is 60x19 mm. (See Figure 33.) Figure 33: Label for CT/VT ratio To insert the label open the window on the meter and fix label on the pins. -
Page 36: Lcd Display
(usually 3 minutes) illumination will go off. Display complies with the VDEW requirements. At the meter start up all segments are displayed for a five seconds. Check MT880 User manual (chapter 4.4.2. Display test state) how to put LCD in a so called Display test state during the operation state. -
Page 37: Voltage And Current Indicators Per Phases
MT880 Installation and maintenance manual 3.6.4. Voltage and current indicators per phases There are two types of phase indicators on the display (see Figure 36, fields 4 and 5): voltage indicators for all phases (L1, L2, L3) (see Figure 36, field 4), ... -
Page 38: State Of The Load Control Relay
Battery empty, meter must be replaced! Table 5: Battery status 3.6.5.4. Alarm indicator The Alarm indicator is activated, when the system alarm status is ON, see MT880 User manual (chapter 8. Alarming and monitoring) for explanation. 3.6.5.5. GSM signal status The GSM signal status bars present: ... -
Page 39: Load Control Indicator
MT880 Installation and maintenance manual Figure 38: Antenna sign GSM signal GSM signal quality Signal strength status bars -59 dBm or greater ≥ 27 (4 bars) -61 dBm .. -71 dBm 21 – 26 (3 bars) -73 dBm .. -83 dBm 15 –... -
Page 40: Cursors
MT880 Installation and maintenance manual 3.6.7. Cursors On the nameplate below the LCD display are printed up to 12 labels, named according the parameterisation of the meter. Cursors on the LCD (see Figure 36, field 8) show which labels are active. There are more variants available, current set depends on meter configuration. -
Page 41: Figure 40: Example Of Flags And Labels On The Front Plate
MT880 Installation and maintenance manual An example of cursor definition is shown in Figure 40. Flag is on Flag is off Flag is blinking Figure 40: Example of flags and labels on the front plate V2.00 – English 33/40 3. METER DESCRIPTION... -
Page 42: Meter Installation
To move the hanger press and hold it down and move it to the desire pre-set position (Figure 42/2). Pay attention that hanger is locked after moving (Figure 42/3). Figure 42: Hanger of MT880 V2.00 – English 34/40 4. METER INSTALLATION... -
Page 43: Preparing Of Cables
MT880 Installation and maintenance manual 4.2. Preparing of cables NOTE! Stranded cables can be used with appropriate ferrules only! Figure 43: Proper prepared cables 4.2.1. Power (main) cables Remove cca 15 mm of wire insulation. Maximum 16 mm cross section for CT and 70 mm for direct connected meters can be used. -
Page 44: Auxiliary Voltage Terminals, External Power Supply And Additional Rs232/Rs485 Terminals
MT880 Installation and maintenance manual 4.2.2. Auxiliary voltage terminals, external power supply and additional RS232/RS485 terminals For these terminals cables with maximum 6 mm cross section (cca 3 mm of diameter) can be used. About 5 mm of cable insulation should be removed. -
Page 45: Checking Meter Functions
Alarm indicator should be off, see MT880 User manual, chapter 8. Alarming and monitoring, if it is ON. FF indicator should be off, see chapter 5.1. Errors and MT880 User manual, chapter 9. Errors, if it is ON. Also, it has to be checked: ... -
Page 46: Description Of Errors And Required Actions
MT880 Installation and maintenance manual 5.1.2. Description of errors and required actions F.F.0 xx xx xx x1 (bit0) Clock invalid Severity Non-critical Description Indicates clock is invalid. If the meter detects that the clock may be invalid, i.e. if the power reserve of the clock has exhausted, the flag is set. - Page 47 MT880 Installation and maintenance manual F.F.0 xx xx x4 xx (bit10) NV memory error Severity Critical Description Error detected in non-volatile memory. The non-volatile memory is used as a long-term persistent storage for periodical data history, billing data, event logs, register back-ups, parameters and any other data needed by the meter during a normal start up.
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Page 48: Meter Operation Monitoring
Error Object register as well as the FF flag on the LCD display is activated. See chapter 5.1. Errors and MT880 User manual, chapters 7. Event logs, 8. Alarming and monitoring and 9. Errors for explanation and handling. - Page 49 Iskraemeco d.d., Merjenje in upravljanje energije 4000 Kranj, Savska loka 4, Slovenia Telephone (+386 4) 206 40 00, Fax: (+386 4) 206 43 76 http://www.iskraemeco.si, E-mail: info@iskraemeco.com Published: Iskraemeco, Information subjected to alteration without notice. V2.00 – English...
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Questions and answers
the phone sign does not appear on the screen
The phone sign (antenna sign) does not appear on the screen of the ISKRAEMECO MT880 when the SIM card is not inserted.
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how to wire iskra meter with the CTs
To wire the ISKRAEMECO MT880 meter with current transformers (CTs), follow these steps:
1. Cable Preparation:
- Use stranded cables with appropriate ferrules.
- Remove approximately 15 mm of insulation from the power (main) cables.
- Use cables with a maximum cross-section of 16 mm² for CT-connected meters.
2. Terminal Connection:
- Fix the power cables to each terminal using both screws.
- Apply a tightening torque of 1.7 Nm for CT connections.
3. Auxiliary and Communication Terminals:
- For auxiliary voltage, external power supply, and RS232/RS485 terminals, use cables up to 6 mm² and strip about 5 mm of insulation.
- For input, output, 5A relay, and communication module terminals, use cables up to 2.5 mm² and strip about 5 mm of insulation.
4. Safety and Compliance:
- Follow all safety regulations and ensure installation is done by authorized personnel only.
- Use a UI splitter if separating voltage and current circuits, and only use the tool provided by the manufacturer.
5. Optional:
- Install and seal the COP5 cover to protect main voltage and current terminals if needed.
This answer is automatically generated
как смотреть реактивную энергию ?
To view reactive energy on the ISKRAEMECO MT880 meter, check the reactive energy measurement mode. The meter supports different reactive energy flow directions and quadrant measurements:
- One-direction flow (Q+): m = 1
- Two-direction flow (Q+, Q-): m = 2
- Inductive energy reception, capacitive energy transmission (Q1 and Q4): m = 3
- Inductive energy in two directions (Q1 in Q3): m = 4
- Four-quadrant measurement (Q1, Q2, Q3, Q4): m = 5
- Four-quadrant measurement with reception and transmission (Q1, Q2, Q3, Q4, Q+ and Q-): m = 6
Ensure the meter is configured for the appropriate reactive energy measurement mode. The class of accuracy is either calibrated to 1% (n = 4) or class 2 (IEC 62053-23) (n = 5). Use the meter interface or connected communication protocols like RS232 or RS485 to access reactive energy data.
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EL MEDIDOR DE ENERGIA MT 880 CUMPLE ****: 1- MEDIDA SEMIDIRECTA 2- TIENE MEDIDA PARA DOBLE TARIFA RED Y PLANTA DE EMERGENCIA
Yes, the ISKRAEMECO MT880 energy meter supports semi-direct measurement through its transformer connected version (T1) and supports dual tariff measurement, as indicated by multiple energy tariff indicators (T1, T2, T3, T4) shown on the LCD display.
This answer is automatically generated
hi , after eliminating some parameters in the billing table and read again i notice that reading does not appear,is it normal and does it appear in the beginning of the next month? thank you