M&C TechGroup ECM Series Operator's manual - Manual (Page 13)

13
Gas sampling and gas conditioning technology 3-3.0-ME
13.2 ELECTRICAL CONNECTIONS
C A R E !
When connecting the equipment, please ensure that the supply
voltage is identical with the information provided on the model type
plate!
N O T E !
Attention must be paid to the requirements of IEC 364 (DIN VDE
0100) when setting high-power electrical units with nominal
voltages of up to 1000V, together with the associated standards
and stipulations.
An external main switch must be provided.
The main circuit must be equipped with a fuse of 10AT (over
current protection); for electrical details see technical data (8.).
W A R N I N G !
Cooler versions with 115V resp. 120V have a built-in transformer
to generate an internal current of 230V. That means, device internal
live parts have a current of 230V not 115V/120V.
Figure 5 shows the electrical connections at the plastic housing behind the front panel of the ECM
housing (fig. 2).
Alarm warnings for over- and under-temperature are given as a collective status alarm via a relay
output with two potential-free changeover contacts. Alarm will be released if the current temperature is
out of a range of ±3°C referring to the set-temperature (+5°C).
Figure 5 Electrical sockets alarm contact
The connection of the mains respectively status alarm signals happens as follows:

release the screws (7 pcs.) from the cooler top and remove it;

put the cables (6-12mm) through one of the cable glands and connect them according to a.m.
wiring plan;

the re-installation of the cooler top happens in the opposite way.