Control elements and connections

Figure: Operator Controls and Connections

A

Service LED

B

Power LED

C

<Auto/Manual> switch

D

<ON/OFF> switch

E

Fuse

F

Power supply cable

G

Hour meter

H

Output regulator

I

Current clamp port 1

J

Power supply cable 2

<Auto/Manual> switch

The automatic start/stop mechanism is activated when the switch is set to <Auto>. If the switch is set to <Manual>, the automatic start/stop mechanism is inactive and the device must be switched on and off manually.

Power LED

The power LED illuminates continuously when the motor is running. During initialization, the power LED and the service LED flash alternately.

Service LED

There is a safety device for monitoring the minimum air volume to be extracted installed in the unit. A differential pressure sensor is used for monitoring purposes. The service LED illuminates in continuously when both filter cartridges are not functioning properly or are saturated and must be replaced. During initialization, the power LED and the service LED flash alternately.