
M3x5/EN M/B
User Manual
Page 14
iSTAT M3x5
7.5
Measurements
The
M3x5
family is ideally suited to applications where continuous Power Quality monitoring
is required.
TABLE 7-1 summarises the measurements available. The
M3x5
can be user configured for
either single or three phase connection.
TABLE 7-1 : MEASUREMENTS
M3x5
V, I, P, Q, S, PF, PA, F,
Energy kWh class 0.2S
Maximum demand
Minimum values: V, I, P, Q, S, PF, PA, F,
Maximum values: V, I, P, Q, S, PF, PA, F,
THD (actual, min, max)
Harmonics (up to)
63
rd
Flicker, voltage fluctuations, Interharmonics
7.6
Hardware features
The
M3x5
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 large 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
M3x5
family
has the ability to customise the display and key functions to enable the user to retrieve
information as quickly as possible.
The
M3x5
has 3 LED indicators that indicate the status for a number of functions; Steady
RED for Memory Card activity; blinking GREEN for communications activity and blinking
RED for an alarm condition.
The
M3x5
has an auto ranging current and voltage measurement inputs so that it can be
used in most site conditions without the need to specify connection information at the order
stage.
The
M3x5
has 8 energy counters and a real time clock so that it supports comprehensive
energy management applications.
The
M3x5
has 8MB of internal memory to support the data recording and Power Quality
Analysis functions.
The
M3x5
supports a Memory Card with capacity up to 2GB which is used to transfer
settings and extract records from the
M3x5
. This means that the
M3x5
can download Power
Quality records and have settings made off line and up/downloaded via a Memory card using
the front card access port. The slot is protected by a cover to prevent humidity and dust
ingress.
Summary of Contents for iSTAT M355
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