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Operating Sequence
The OWS-IR behaves similarly as the dual tech model; when vacant the PIR
monitors for occupancy. Once motion is detected and the occupancy state is
transmitted to the receivers, the minimum period to the next telegram is > 100
seconds. If no motion is detected in 200 seconds, a vacant telegram is sent.
The sensor will transmit telegrams indicating vacancy every 1000 seconds.
So long as linked controllers receive an occupied state telegram before their
occupancy timer expires, the lights will remain on.
Preparing to Install the OWS
The OWS uses a PIR sensor that detects motion by measuring the infrared
energy given off by objects. The sensor is calibrated to detect the heat range of
human body temperature. The sensor has a lens that breaks the viewing angle
of the sensor into zones (movement zones). It is the movement of the infrared
energy moving in and out of a zone that defines occupancy.
The PIR interface cannot detect motion through solid objects including items
placed by a tenant such as file cabinets or bookshelves. Use the dual tech model
for spaces with visual obstacles between the sensor and areas of intended
motion.
The mounting location of the sensor is important as this will directly affect the
receivers reception of the telegrams. Before installing, refer to the sections
in the guide detailing the installation of wireless devices, layout tips and test
operation modes.
You will require hand tools to gain access to the junction box and remove any
cover plates or other hardware.
Side View
>11 m (36 ft)
Dual Tech models only - Reliable
audio detection > 24 ft provides
overlapping coverage of monitored
spaces
(PIR model only)
11 m
36 ft
9 m
30 ft
15
0
3 m (9.8 ft)
9 m
30 ft
11 m
36 ft
Top View
Note: For small body
motion (ie: hand
movement) reliable
detection ~
(12 ft) 3.6 m
180
0
Inner
shaded
ray area
indicates
small motion
detection area.
3
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