Extronic PD-22LF Installation Instructions

Presentation

PD-22LF circuit board moun-
ted in IR detector PD-2200.
The PD-22LF auxiliary detector is intended to be used
in combination with the PD-2200 IR detector in closed
premises that are difficult to monitor, for the control
of HF light fittings with a 1–10V input. It can be used
for detection in closed premises (with doors) where it
is not possible to monitor the entire premises with a
single IR detector. It is designed to be mounted in the
IR detector enclosure using the detector's terminal
block
The PD-22LF auxiliary detector consists of an acoustic detector
that detects low frequencies (LF, 0–3 Hz) and a level selector.
The level selector switches between the normal light level of
around 80 per cent and a base level of around two per cent.
Schematic diagram showing operation in combination with IR detector.
PD-22LF AUXILIARY DETECTOR
Installation instructions
Order no.13134, E-nr 13 060 72

Operation in combination with PD-2200 IR detector

When someone enters the premises the lighting is switched on
at the normal level by the acoustic auxiliary detector or by the IR
detector. The acoustic auxiliary detector detects the infrasound
(0–3 Hz) that is generated when a door is opened. The advan-
tage of the acoustic detector is that it also detects entrance into
the stairway through doors that are hidden from the IR detector.
The lighting remains switched on at the normal level for as long
as presence is detected by the IR detector, plus a delay that can
be adjusted using a jumper on the auxiliary detector (2 sec, 10
sec, 30 sec, 1 min or 5 min). The lighting is then reduced to the
base level for the light fittings, which can vary from 1 to 10 per
cent. The base lighting remains on until the next time someone
enters the premises.
Note!
The photocell in PD-2200 cannot be used.
PD-22LF cannot be used in the PD-2400.
PD-22LF auxiliary detector detects the low-frequency sound that is
produced when a door opens.