ESDB-GUIDE-ENG- 02-21
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SALTO Systems - Universal Energy Saver manual
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2. INSTALLATION
The flush mounted volumetric detector is always installed on the ceiling of the room*.
The device is installed by hooking to the ceiling with the tabs.
It is necessary to bore a 75mm hole in the ceiling in order to insert the detector.
The detector’s installation position must be taken into account. Detection coverage is
shown below to help positioning. It may be necessary to install more than one detector
per room.
It detects motion as soon as any movement above a speed of 1 m/s is detected in the
detection zone..
*
Basic Principles
PaPIRs is a pyroelectric infrared sensor that detects variations in infrared rays.
However, it may not detect in the following cases: lack of movement, no temperature
change in the heat source. Besides, it could also detect the presence of heat sources
other than a human body. Efficiency and reliability of the system may vary depending on
actual operating conditions:
1) Detecting heat sources other than the human body, such as:
a) Small animals entering the detection area
b) When a heat source for example sun light, incandescent lamp, car headlights etc, or
strong light beam hit the sensor regardless inside or outside the detection area.
c) Sudden temperature change inside or around the detection area caused by hot or
cold wind from HVAC, or vapor from the humidifier, etc.
2) Difficulty in sensing the heat source
a) Glass, acrylic or similar materials standing between the target and the sensor may
not allow a correct transmission of infrared rays.
b) Non-movement or quick movements of the heat source inside the detection area.
3) Expansion of the detection area
In case of considerable difference in the ambient temperature and the human body tem-
perature, detection area may be wider apart from the configured detection area.
