Vision 2310b, Инструкция по эксплуатации, Страница: 26 / 48

VISION 2310B INSTRUCTION MANUAL
23
ADJUSTING THE SHOCK SENSOR
The shock sensor is factory preset to work
well with most vehicles out-of-the-box.
However, if you find that the siren is going
off too easily, or if the siren doesn’t go off
when you think it should, it’s time to adjust
the sensitivity.
Turn the sensitivity adjustment knob clockwise to increase sensitivity and
counter-clockwise to
decrease
. If you cannot find a suitable adjustment
level, consider remounting the shock sensor.
Sensitivity
The VISION 318-052 “Active-IR” shock sensor has been engineered to
avoid false triggers in most situations. However, there is still the possibil-
ity the sensor could trigger the siren during a strong earthquake, jackham-
mer operation adjacent to the vehicle, hurricane/typhoon, large explosions/
fireworks, large animals ramming against the vehicle, etc. If any of these
extreme cases are anticipated, you can avoid false siren triggers simply
by arming the system with the Sensor Bypass Method, which ignores the
shock sensor (see page 28).
Another consideration is temperature. The sensitivity can vary by as much
as 20% under extreme temperature conditions. You may wish to reduce the
sensitivity in
hot
weather and
increase
sensitivity in
cold
weather.
False Alarms
If the shock sensor is not working well or at all, it may be that the suspend-
ed element inside the case was jolted out of position. Disconnect the wire
harness, snap open the shock sensor case, and adjust as shown below.
Suspended Reflector Malfunction
Correct
Alignment
Incorrect
Alignment
Sensitivity