Oldham MX 52, Commissioning, Operating And Maintenance Manual

Page: 8 / 96

8
- One relay common to channels for third thresholds or for all alarms (buzzer
transmission), with positive or negative safety, contacts opened or closed at rest
- One relay common to channels for faults and failures, constant positive safety
mode, contacts open or closed at rest.

Current output (4-20 mA) per measuring channel.

Common audio alarm that can be acknowledged in the case of occurrence of gas alarms.
1.2. Rack
The MX52 rack is of the 3U 19” type.

Overall dimensions: Fig. 1

Overall view, front profile: Fig. 2

Overall view, back profile: Fig. 3
1.3. The various printed circuit boards

Overall view: Fig. 4

Power board and module: Fig. 5

MICRO board: Fig. 6

Measuring channel board: Fig. 7

Front connection board: Fig. 4