Figure 5, Cg-2h-w and cg-2mh-w – M&C TechGroup CG-2H-W_-2MH-W Operator's manual User Manual

Page 15

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Gas sampling and conditioning technology

9-0.2-ME

Figure 5

CG-2H-W and CG-2MH-W

The M&C gas converters type CG-2 and CG-2M are designed as compact, user-friendly and easy to
service 19" plug-in units  (figure 4) suitable for mounting in 19" cabinet systems. When fitted with the
optional mounting bracket with a vertical swivel-holder (50 A 3000), the converters can also be wall-
mounted.
The M&C gas converters type CG-2H-W and CG-2MH-W are executed in a compact, user-friendly and
easy to service manner for wall mounting  (figure 5).

All operating elements are mounted on the front panel of the converter for easy access. These are:

-

Mounting adapter with handle for the catalyst cartridge ;

Temperature controller with digital temperature display/temperature alarm;

Selector switch for bypassing the catalyst cartridge  (only versions CG-2M/-2MH-W).

The catalyst cartridge is mounted in a heat-insulated tube furnace. The special mounting adapter  on
the front plate respectively on the above housing side of the converter allows the hot catalyst cartridge
to be released and removed without tools being needed.

The converter temperature is electronically controlled and can be set continuously at the temperature
controller  on the converter's front panel respectively above housing side within a range between
+50°C and +680°C, depending on the catalytic reaction (see 18.3).
An alarm for excessively high and low temperatures is provided as a status contact output at the 9-pin
sub-D-plug  (terminals 5 and 9) on the rear side of the converter.

With the versions CG-2M and CG-2MH-W internally or externally controlled PVDF 3/2-way bypass
solenoid valves allow the catalyst to be bypassed, for example for test purposes. The desired sample
gas path is selected internally via the switch  on the converter's front panel or can be switched ex-
ternally via the 9-pin sub-D-plug located on the rear of the

converter (see 13.2). Two green LED‟s con-

firm the sample gas path selected:

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