FDET8

Function and operation

1.This FDET8 emergency lighting test switch allows manual testing of single point emergency lighting systems 

by simulating a supply circuit failure. This switch allows four(4) emergency lighting circuits to be wired through a normally closed contactor.

2. The test is initiated by momentarily selecting the TEST position on the key selector switch. This energizes the contactor and strts a delay off timer.

3. At the end of the test cycle, power is restored automatically, returning the emergency lighting circuits to normal operation. 

Momentary selection of REST during the test cycle will also return the emergency lighting circuits to normal operatioin.

Note:

The timer is supplied preset with a test time of 10 seconds. This must be changed to the actural test time. 
The Function Dial is preset to “g” and must remain in this position for the correct operation of Test Switch