Argus A2 Service Manual download pdf (Page 4)

Chapter 5: ARGUS

5.1 ARGUS movement detector, surface-mounted

INSTABUS ARGUS 220 Connect

Art. no. 6315 ..

Version 03/04 4

Movement detectors are not suitable for use as

components of an alarm system as defined by

the German insurance industry association VdS

(Verband der Sachversicherer). After a bus volta-

ge failure, the detectors may be triggered inde-

pendently of movements. This could in turn

trigger the alarm function.

Movement detectors can trigger false alarms if

the installation site has been chosen unfavou-

rably.

Movement detectors switch as soon as they detect a

moving heat source. This can be a person, but also

trees, cars or differences in temperature in windows.

In order to avoid false alarms, the chosen installation

site should be such that undesired heat sources can-

not be detected. Undesired sources of heat could in-

clude the following:

– moving trees, shrubbery etc. with a temperature

that differs from that of their surroundings

– windows where the influence of sunlight and

clouds could cause rapid changes in temperature.

– larger heat sources (e.g. cars), that are detected th-

rough windows.

– insects running over the lens.

– small animals

– rooms flooded with light where the light is reflected

on objects (e.g. the floor), which can be the cause

of rapid changes in temperature.

How to install the ARGUS

1 Loosen the two screws and remove the wall con-

nection box from the device.

2 Mark the intended drill holes on the mounting sur-

face.

3 If you wish to insert a bus line from the top into the

back of the device, clip the four spacers supplied

onto the wall connection box.

Using movement detectors with alarm systems

1 2 3 4 5 6 7 8 9

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Argus A2 Service Manual Page 4