Connecting the level control device
DANGER
Explosion hazard through sparks!
There can be an explosive atmosphere in the collection tank. A spark can cause an explosion. Follow these points:
- Connect the level sensor to an evaluation relay. The evaluation relay must be permitted for use in potentially explosive atmospheres. The relay must also have an intrinsically safe circuit. (e.g., Zener barrier).
- Obey the local regulations.
Connect the level sensor to the related terminals of the switchgear used. Make sure to store these switching points in the switchgear according to the data sheet supplied with the switchgear:
- Pump ON
- Pump OFF
- High water alarm