INSTRUCTION
EN
S-IR24-P
i
Read this instruction before installation
and wiring of the product
Occupancy sensor
IR24-P is a passive infrared occupancy sensor suitable for use in "on
demand" control of ventilation systems or in intrusion alarm circuits.
Cable hole
Corner mount
Jumpers
Fig.1 IR24-P
Mounting
For best coverage IR24-P should be placed 6...8 ft above floor level in a
location with an unhindered view of the area to be monitored. Avoid expo-
sure to direct sunlight or other powerful heat sources.
For corner mounting the two corner mounting holes in the casing may be
used. For other wall mounting or for ceiling mounting use the supplied
mounting bracket. Fasten the bracket according to the appropriate figure.
Fasten the unit to the bracket and lead the cable through the access tube
in the bracket and through the cable hole in the housing.
Align the unit and lock in position by tightening the locking screw on the
bracket. Replace the front cover.
Ceiling mounting
Fig.2 Installation of the mounting bracket
Terminal
Fig.3 Mounting the unit on the bracket
LEDs
Sensor
Don't touch
Cover screw
Wall mounting
IR24-P
Detection pattern
110°, 15 x 15 m (49,2 x 49,2 ft) at 25°C (77°F) Plan view
2,4m
Side view
(7,9 ft)
2,5m
10m
15m
(49,2 ft)
(8,2 ft)
(32,8 ft)
Wiring
Supply voltage:
24 V AC/DC ±2 V
Power consumption:
5 mA @ 24 V AC
Relay:
Form C, 0.2 A, 30 V DC
24 V AC/DC
On/Off delays
IR24-P is equipped with adjustable ON- and OFF-delays.
IR24-P is normally in standby mode with the output relay unactivated.
On detecting a movement the ON-delay is activated. The relay re-
mains unactivated.
When the ON-delay time expires the IR24-P enters a 1-minute waiting
period.
If no movement is detected during the waiting period the IR24-P
reverts to standby mode.
If however a movement is detected during the waiting period, the
output relay will be activated and the OFF-delay initiated.
Any detection during the the OFF-delay will restart the delay timer. If
for example the OFF-delay has been set to 5 minutes the relay will
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