The heat detector has a common profile with optical smoke detector but has a lower air flow resistance case made of self extinguishing white polycarbonate.
They monitor temperature by using a single thermistor network which provides a voltage output proportional to the external air temperature.
To provide a device for use in ambient temperature up to 55°C, a temperature detector is also available. This has similar characteristics to the standard temperature detector at 25°C but reaches a 55 count (alarm) at 90°C.
|Supply Voltage||17-28V DC|
|Quiescent Current||250µA average, 500µA peak|
|Operating Temperature||–20°C to +70°C|
|Humidity (no condensation)||0–95% RH|
|Dimensions||100 (D) x 42 (H) mm|
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