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SMS ISKRA ME371 User Manual

SMS ISKRA ME371
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Energy Measurement and Management
ME371,
MT371
Single- and Three-Phase
Electronic Meters with Built-in
DLC Communication Channel
ME372,
MT375
Single- and Three-phase
Electronic Meters with Built-in
GSM/GPRS Modem or RS485
Communication Interface
Technical
Description
EAD 020.611.325
Version 2.00, 29.05.2008

Table of Contents

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SMS ISKRA ME371 Specifications

General IconGeneral
BrandSMS
ModelISKRA ME371
CategoryMeasuring Instruments
LanguageEnglish

Summary

Energy Measurement and Registration

Multi-tariff Registration

Enables energy and power registration with up to four tariffs, including time-of-use features.

Load-Profile

Describes load-profile recorders with up to 16 channels for capturing data at set intervals.

Supplied Energy or Power Limitation

Explains meter functionality for limiting or disconnecting energy/power based on predefined thresholds.

Prepaid Functionality

Details prepaid meter operation, allowing consumption up to a set credit limit before disconnection.

Meter Appearance (ME37y)

Meter Configuration (ME37y)

Presents block diagrams illustrating the internal configuration of ME371 and ME372 meters.

Metering System (ME37y)

Explains the metering system, including sensors and processing for active, reactive, and apparent energy.

Meter Appearance (MT37y)

Meter Configuration (MT37y)

Shows block diagrams for MT371 and MT372 meter configurations, detailing components.

Metering System (MT37y)

Describes the metering system utilizing Rogowski coils and voltage dividers for energy measurement.

Meter Configuration

Microcontroller with FRAM

Details the microcontroller's role in signal processing, energy calculation, and data storage.

Load-Profile Recorder

Describes the load-profile recorder capabilities for registering data at set periods.

Liquid Crystal Display (LCD)

Describes the 7-segment LCD, its characters, symbols, and compliance with VDEW specifications.

AMR Readout System

Explains the components (meter, concentrator) and communication for automatic meter readout.

Additional Meter Functions

Remote Connection/Disconnection

Remote control of a plug-in switching device for connecting/disconnecting customer supply.

Data Protection

Meter Connection Procedure

Anti-fraud Protection

Meter Connection

Meter Connection of ME37y Meters

Provides connection diagrams for ME37y meters in single-phase networks.

Meter Connection of MT37y Meters

Details connection methods for MT37y meters in three-phase and single-phase networks.

Technical Data

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