Fireboy-Xintex Fixed Heat Detector w/Base

<p><strong>Fixed Heat Detector with Base</strong></p><p>The Fireboy-Xintex Heat Detector uses a single thermistor to sense the air temperature around the detector. This heat detector was designed to detect how fast the temperature is increasing.</p><p><strong>Features:</strong></p><ul><li>163°F Fixed Heat Detector</li><li>Housing: White flame-retardant polycarbonate</li><li>Terminals: Nickel-plated stainless steel</li><li>Ideal in environments that are dirty or smoky</li><li>Unaffected by wind or atmospheric pressure</li><li>Remote test feature</li></ul><p><strong>Specifications:</strong></p><ul><li>Detection Principle: Measurement of heat using a thermistor</li><li>Sampling Frequency: Once every four seconds</li><li>Supply Voltage: 8.5 V dc to 33 V dc</li><li>Supply Wiring: Two wire supply, polarity sensitive</li><li>Power-up Time: < 20 seconds</li><li>Minimum: ‘detector active’ voltage: 6 V</li><li>Holding Voltage: 5 V - 33 V</li><li>Minimum Holding Current: 8 mA </li><li>Minimum Voltage to Light Alarm LED: 5 V </li><li>Alarm Reset Voltage: < 1 V </li><li>Alarm Reset Time: One second </li><li>Alarm Indicator: Integral indicator with 360º visibility</li><li>Operating & Storage Temperature: -40ºC to +70ºC</li></ul><p><strong>Operation:</strong></p><ul><li>Open-web casing that enables air to flow freely across a thermistor which measures the air temperature every two seconds </li><li>A microprocessor stores the temperatures and compares them with pre-set values to determine whether a fixed upper limit - the alarm level - has been reached</li><li>Detectors the microprocessor uses algorithms to determine how fast the temperature is increasing</li></ul> <!--- cis2:mm5sl5hm --->