Timeguard 202.0.000 - Manual (Page 12)

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.3 Behaviour on switching on
After you have defined the settings, connect the upper part to the power
section. Ensure that the labelling is aligned on both parts.
Each time the sensor head is attached to the power section or after the
power supply is connected, a startup phase (90 sec.) followed by a ser-
vice phase (10 min.) is initiated on the sensor. The sensor then switches
to normal operation automatically.
Avoid using force when assembling the unit. Ensure that the two
parts are aligned correctly.
Do not press on the lens. Hold the upper part at the white edge only.
The two switching contacts are closed for approx. 90 sec. after the unit
has been assembled (startup phase).
The lighting system lights up continuously and the ventilation system is
in operation.
In the subsequent service phase, the ECO-IR responds immediately to
changes in brightness in order to test the set brightness switching value
(Lux) quickly.
If the room is darkened (e.g. by closing the blinds), the lighting system
is switched on when the switching value is reached. The lights can be
switched off by „blinding“ the sensor with a torch.
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