Fig. 1
Fig. 3
1. Open back.
2. Select 15 second disable period by following
the second paragraph of the instructions.
3. Don’t install battery yet.
4. Connect wires to points shown in Fig. 1
(the output of the PIR unit).
5. Note: this is the output of the PIR unit and
it will light a LED or energize a 5V relay
for about 2 seconds when it detects an
intruder - simply wire as shown in Fig 2.
Note: you can replace the relay in Fig. 2 directly
with the G1148 electronic siren if you
purchased this. Install a 9V battery in PIR unit.
6. If you wish a longer “alarm on” time build
the circuit shown bottom right (Fig. 3).
Things to consider. . . . .
After installing a fresh battery, allow the unit to sit for about
two minutes to give it ample time to charge its capacitors.
There is a refractory period of about 10 seconds from the
time that the unit is activated to when it can be activated
again. You will also want to experiment with the orienta-
tion of the unit to the area that you are monitoring. You will
notice more sensitivity towards the sides of the unit instead
of straight on. Experiment for best results. If you experi-
ence signal transmission problems, the trim pot (P201) may
need to be adjusted. Turn it all the way counterclockwise
and then back clockwise. Do this several times.
Fig. 2
G4567 Passive Infrared Detector
