The photo-thermal sensor (CAPT340) will respond quickly to fast clean burning fires yet maintainthe advantage of optical sensors when detecting smouldering fires. The thermal enhancement of this sensor allows a higher alarm threshold which provides agreater rejection of false alarms. The sensor will alsoraise an alarm at temperatures exceeding 60ºC. The CAPT340 has day/night modes available, programmeable from the site installer software. The day mode uses the heat aspect of the sensor for areas which may have smoky environments during, for example working hours. The night mode uses a combination of A2S and smoke detection. If not programmed, the sensor defaults to dual mode.
Addressable Analogue Combined Photo Thermal Detector, Cooper Industries plc ADI India, Cooper