The FCH‐T320 Conventional Automatic Fire Detectors set new standards in fire detection technology, their most impressive feature is their ability to prevent false alarms, as well as speed and accuracy of detection.
A thermistor in a resistance network is used as a thermal sensor; an analog-digital converter measures the temperature-dependent voltage at regular intervals.
When the maximum temperature of 54°C is exceeded (thermal maximum), or if the temperature rises by a defined amount within a specified time (thermal differential), the temperature sensor triggers the alarm status.