Electrical connections – M&C TechGroup ECM-ExII Operator's manual User Manual
Page 15

15
Gas sampling and gas conditioning technology
3-3.0EX-ME
15.2
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!
W A R N I N G !
Do not work at alive parts unless the area is known to be non-
hazardous.
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.
Because of the exchangeable fuse the cooler must be equipped
with a suitable external switch, which takes the cooler off the
mains.
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-
ExII 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) .