M&C TechGroup CG-2H-W_-2MH-W Operator's manual - Manual (Page 18)

18
Gas sampling and conditioning technology 9-0.2-ME
13.2 ELECTRICAL CONNECTIONS
W A R N I N G !
The wrong mains voltage can destroy the device. When connect-
ing, take care that the mains voltage corresponds with the informa-
tion provided on the type identification plate!
N O T E !
For the erection of power installations with rated voltages up to
1000V, the requirements of VDE 0100 and relevant standards and
specifications must be observed!
A main switch must be provided externally.
The main circuit is equipped with a fuse corresponding to the
nominal current (over current protection); for electrical details see
technical data.
The converter is connected to the mains at the rear respectively the lower side of the converter hous-
ing via a shockproof plug with 2 meter connecting cable (X1, see circuit diagram in the annex).
The general status alarm for signalling temperatures outside the permitted range and the facility for
connecting the solenoid valves externally are provided at the 9-pin sub-D-plug on the rear or lower
side of the converter housing.
N O T E !
Correct functioning of the converter is only guaranteed when the sub-D-plug
X2 is mounted !
Figure 6 shows the pin configuration in the sub-D-plug X2.
1 2 3 4 5
6 7 8 9
Common status alarm:
1 x NO, potential free
Contact rating: 24V, 1A
Catalyst
Bypass
internal control
external control
Figure 6 Pin configuration in the sub-D-plug X2
Contacts 5 and 9 are provided in the sub-D-plug to ensure sure signalling of temperatures outside the
permitted range (see figure 6). This involves a potential-free make-contact with a switch rating of 24V,
1A. The alarm is signalled if temperatures exceed the permitted temperature range by ±5°C.
The versions CG-2M and CG-2MH-W have got solenoid valves switching between the sample gas
paths. The valves can be controlled either internally or externally by the customer (see figure 6).