Satel VD-1 User Manual

The VD-1 vibration detector with magnetic contact is designed for use in burglary and panic
alarm systems. It is characterized by low current consumption. Owing to its advanced
features of piezoelectric sensor signal processing, the vibration detector can distinguish
between the natural vibrations received from the environment, and those caused by an
attempt to force the door or window. The sensor signal is analyzed for amplitude, duration
and number of the vibrations. The magnetic contact signals violation after the magnet is
moved away from the reed switch, which means breaking the electric circuit.
1
0
2
MIN
4
ON
Explanations for Figure 1:
1 - potentiometer for setting the number of pulses (vibrations), the recording of which
during 30 seconds will result in violation of the detector. All vibrations are included
(whether or not they meet the sensitivity criterion). Values ranging from 0 to 7 can be
set. The set value is indicated by the LED (a change in settings will generate a suitable
sequence of flashes). For value 0 the pulses are not counted.
2 - potentiometer for setting sensitivity of the vibration detector. Recording a single
vibration which meets the criterion of sensitivity will cause violation of the detector.
Note: The sensitivity and the number of pulses are analyzed independently. The detector
can signal violation after recording a single strong vibration, resulting from a hard
stroke, as well as after recording several small vibrations caused by a series of
weak knocks.
3 - red color LED to indicate:
– registering of vibrations (short flash),
®
7
MAX
OFF
Fig. 1. View of the detector electronics board.
VIBRATION DETECTOR
WITH MAGNETIC CONTACT
VD-1
vd1_en 09/08
9
ON
OFF
10
A
B