The HM-203HC-2 network 2-wire rate-of-rise and fixed temperature heat detector is outfitted with the precise and reliable thermal sensor which has double temperature sensing modes of rate-of-rise temperature and fixed temperature. It can be applied into all kinds of places needing fire prevention.
When the environmental temperature climbs to the alarm threshold of 57℃ (135°F), or the rate of rise of temperature comes up to 8℃ (15°F) per minute, the product would be triggered to alarm, and send the alarm signal (current signal) to the alarm controller (fire alarm control panel system).
In the alarm state, the LED indicator of the 2-wire rate-of-rise and fixed temperature heat detector lights. After the completion of the alarm, the user should disconnect the power and reset the product. The adoption of no polarity power input saves the installation time. With the supply voltage of DC9-35V, the product is furnished with double alarm indicators visible within 360 degrees without blind angle.
Operating Voltage | DC9~35V |
Quiescent Current | 50uA (DC 24V) |
Alarm Current | 35mA (DC 12V), 83mA (DC 24V) |
Alarm Indication | Red LED |
Alarm Temperature | 57℃ (135°F) |
Rate of Rise of Alarm Temperature | 15°F (8℃) /min |
Alarm Output | Remote LED |
Working Temperature | -10℃ ~ 50℃ |
Ambient Humidity | ≤95% RH |
Detection Zone | 60-80m² |
Related Names
Thermal Heat Detector | High Room Temperature Sensor | Commercial Fire Alarm