Operating The Alignment Controller (Sb51) - GE Security SB250 Manuel D'installation

7.

Operating the alignment controller (SB51)

1. On the receiver, select the maximum SB51
sensitivity by turning the SENSITIVITY knob as
far clockwise as it will go.
2. Adjust the direction of the transmitter beam
cells until you obtain a continuous tone from
the buzzer and the maximum flashing
frequency on the LEDs. (If there is no signal,
the frequency of the LEDs and the buzzer is 1
Hz.)
3. To further refine the adjustment, reduce the
sensitivity of the SB51 on the receiver by
turning the SENSITIVITY knob anti-clockwise
to mid-range.
4. Continue as in step 2 until you obtain the
maximum signal.
5. Check the received signal using a voltmeter
connected to the measurement terminals on
the alignment controller SB51 and ensure that
the alignment complies with the table in the
"Optimising reception" section (page 10.)
Adjusting the intruder alarm response time
Attention: Adjust the response time of the intruder alarm by turning the
response time potentiometer. In this way you can adapt the sensitivity of the
detector to its environment. A long response time reduces sensitivity.
Rx
SB51
Rx
SB51
Voltmeter
13
Tx
Tx