Alstom iSTAT M212 - Family; Measurements; Hardware Features

M2x2/EN M/F User Manual
Page 10 iSTAT M2x2

High sampling rate of 128 samples per cycle
 A frequency family of 16 2/3Hz, 45/65Hz or 400Hz
Economical
 Universal Power for all site situations
 Common case size permits retrofitting without major re-engineering of the panel.
6.2 Family
The iSTAT M
2x2 family provides:
 M212 class 0.5 non-communicating Power and class 1 Energy Meter. The M212
includes energy measurement in all four quadrants and is fitted with pulsed energy
contact outputs and optional tariff inputs.
 M232 class 0.5 communicating Measurement Centre. The M232 adds serial
communications and alarms (optional output) to the M212.
Software:
 QDSP Standard for setting and monitoring software
6.3 Measurements
The M2
X2 family is therefore ideally suited to applications where continuous monitoring of a
single or three-phase system is required:
 M212: local indication for ac switchboard power measurements, energy metering into
a remote energy management system using pulsed outputs.
 M232: local and remote indication for ac switchboard power measurements, energy
metering into a remote energy management system via pulsed outputs or
communications.
TABLE 7-1 has a summary of the measurements available. The M2x2 ca
n be user
configured for either single or three phase connection.
TABLE 7-1 : MEASUREMENTS
M212 M232
V, I, P, Q, S, PF, PA, F, 
 
Energy kWh class 1
 
Maximum demand
 
THD
 
6.4 Hardware features
The M2X
2 family has a number of hardware features that are designed to make the
installation, commissioning and use of the meters as simple as possible, see TABLE 7-2.
It has a la
rge 128 x 64 pixel Liquid Crystal Display (LCD) that can display information in a
number of different font sizes and is backlit for use in conditions with a low light level. The
menu is driven locally by a 5 key function pad on the front of the meter and the M2x2 family
has the ability to customise the display functions to enable to user to retrieve information as
quickly as possible.
The M2x2 has LED indicators defining energy flow and active alarms (M232 only).
The M2x2 has a Universal auxiliary supply and an auto ranging current and voltage (option)
measurement inputs so that it can be used in most site conditions without the need to specify
this information at the order stage.