Product Overview

Table Of Contents
FlexStat (General) 33 Application Guide, Rev S
Motion/Occupancy Sensor
Performance and Applications
For any FlexStat model with a (passive infrared) motion/occupancy sen-
sor option, be sure to install it where it will have an unobstructed view
of the most typical trac area. Do not install it behind curtains or
other obstructions. Do not install it where it will be exposed to sun-
light or heat sources! Do not install near a heating/cooling duct.
For some applications, such as hotel rooms, bedrooms, and other
sleeping quarters, lack of detected motion may not truly mean “unoc-
cupied.” Motion sensors coupled with door contacts can prevent such
undesired setbacks. If no motion is detected during a predetermined
time after a door opening/closing is detected, then the mode changes
to unoccupied. However, if motion is detected during the timed period
after a door has been opened/closed, then occupied mode shall remain
on until the next time a door is opened or closed (and the timed period
begins again). (Custom programming is required.)
The eective detection range is approximately 10 meters or 33 feet.
Factors that may reduce the range include:
Too small of a dierence in object surface temperature compared to
the background temperature.
Object movement in a direct line toward the sensor.
Very slow or very fast object movement.
Obstructions.
False detections may be triggered by:
The temperature inside the detection range changing suddenly
because of entry of cold or warm air from an air-conditioning or
heating unit.
The sensor being directly exposed to sunlight, an incandescent
light, or other source of far infrared rays.
Small animal movement.
NOTE: To maintain maximum
sensitivity, occasion-
ally wipe dust or dirt
o the lens—but do
not use any uid on
the sensor.
Motion/Occupancy
Sensor
Detection
Performance
55°
X
0°
Top View
Side View
0°
46.5°
Y
(10 m)
32.8 ft
(10 m)
32.8 ft
(10 m)
32.8 ft
(10 m)
32.8 ft
55°
X
0°
Top View
Side View
0°
46.5°
Y
(10 m)
32.8 ft
(10 m)
32.8 ft
(10 m)
32.8 ft
(10 m)
32.8 ft