AW103HD
Wireless Addressable Heat Detector
The primary purpose of the AW103HD wireless Addressable Heat Detector is to measure the temperature presence in its surveillance area. It triggers an alarm signal to the fire panel in the case of a sudden rise in temperature or abnormal temperatures. This wireless device communicates with the control panel at a frequency of 433.92 MHz. The unit is powered by a built-in AA battery. When the battery power is low, it communicates with the control panel to alert for replacement. This unit is mainly used in situations where wiring is not feasible
- Rate of rise and fixed temperature detection
- Corrosion protection
- bi-colour LED to indicate healthy and alarm condition.
- Dual LED for 360 deg viewing.
Storage temperature : -10ºC to 60ºC
What is a heat detector and how does it work?
A heat detector is an instrument that measures its ambient temperature. It will raise an alarm by monitoring the rate of rising heat in its surveillance.
The heat detector consists of a thermistor component that measures the surrounding temperature. The resistance offered by the thermistor device decreases with an increase in heat sensed by it, thereby increasing the values of voltage and current drawn by the circuit. The detector’s intelligence algorithm monitors the difference in voltage values at continuous intervals of time. The higher the difference in voltage, the higher the increase in heat.
In the case of fire, the rise in temperature is rapid. Meaning, in less time the difference in temperature measured is very high. This parameter of the rate of rising in heat is considered to raise an alarm confirming the presence of fire.
Further, the alarm is also raised when the live temperature exceeds the pre-set upper limit/threshold values of the detector.
This detector is much more effective than fixed temperature detectors and is also unharmed by dusty or smoky environments.
others in series
Wireless Addressable Optical Smoke Detector
Model No: AW103SD
Wireless Addressable Optical Multisensor Detector
Model No: AW103MD
