HEAT (TEMPERATURE) SWITCH ADDRESSABLE DETECTOR

Detector Type: 
Fixed Temperature Heat Detector (software algorithm may be used for Grade 1 response) 

Detector Principle: 
Linear approximation over temperature range 25°C to 90°C 

Sensor: 
Single NTC 

Thermistor Sampling Frequency: 
Continuous 

Supply Wiring: 
Two wire supply, polarity insensitive

Supply Voltage: 
17 to 28 Volts dc 

Modulation Voltage at Detector: 
5 to 9 Volts peak to peak 

Quiescent Current: 
250µA average, 500µA peak 

Power-up Surge Current: 
1mA 

Duration of Power-up Surge Current:
0.3 seconds 

Maximum Power-up Time: 
4 secs 

Storage Temp: 
-30°C to +80°C 

Operating Temp: 
-20°C to +70°C 
Analogue Value at 25°C 25± 5 counts