Alstom iSTAT M355, Manual, Page: 13 / 154

User Manual M3x5/EN M/B
iSTAT M3x5
Page 11
7. INTRODUCTION
FIGURE 7-1 : M3X5 FRONT AND REAR CASE VIEWS
7.1 General
The M3x5 Quality Analyser is a comprehensive device intended for the permanent
monitoring of power quality from its production (especially renewable), transmission,
distribution to final consumers, who are most affected by insufficient quality of voltage. It is
mostly applicable in medium and low voltage markets.
Lack of information about supplied quality of voltage can lead to unexplained production
problems and malfunction or even damage to equipment used in production processes.
Therefore, the
M3x5 can be used for utility purposes (evaluation against standards) as well
as for industrial purposes (e.g. for monitoring supplied power quality).
The M3x5 Power Quality Analyser integrates a number of measurements, monitoring,
recording and metering functions in the same unit for comprehensive power system
management.
The M3x5 offers:

Power Quality measurement to IEC 61000-4-30:2008 Class A

Power Quality analysis to EN50160: 2011

High accuracy measurements (0.1%, 0.2S Energy)

4 voltage and 4 current inputs (including neutral current)

31 kHz sampling (620 s/c @ 50 Hz)

Interharmonics Measurement

Time synchronisation (multiple methods)

Modbus and DNP3(level 1) protocols for integrating into energy management and
control systems on Serial and Ethernet communications channels.

Up to 20 I/O channels and 32 programmable alarms

128 (4 x 32) channel trend recorder and alarm status recorder.

Energy measurement, tariff and cost management functions for use in sub metering
applications.

User friendly configuration, download and analysis software (QDSP2)

A cost-effective solution for Medium and Low voltage and Industrial markets