70
25. Adjustable Response Times
If specified at the time of ordering alarm cards can be supplied with single-turn potentiometers that
allow the user to set the reponse time of each input.
Option AD1= 5 – 50 ms
Option AD2 = 20ms - 2 seconds
Option AD3 = 5ms – 5 seconds
CARD MODEL NO CB5674POP1
RL2
ON
4
8
6
7
5
OFF
3
2
1
ALARM CARD
DELAY
RL1
A4506-*
VR1
VR2
DELAY
CH1
CH2
RESPONSE TIME
ADJUSTMENT
To access the individual alarm card the plastic cover plate on the rear of the associated cell must be
removed by squeezing the lock-in tabs on either side of the cover. The alarm card can then be
removed to allow adjustments to be made to VR1 (Channel 1) and VR2 (Channel 2) as required. The
standard adjustment is in the range 5mS to 50 mS turning the trim pot in a clockwise direction to
increase the response time.
