The Safetec E20.221-226 Heat Detector is suitable in atmospheres with high dust content or where fumes may temporarily be concentrated. The Heat Detectors have an open-web casing that allows air to flow freely across a thermistor which measures the air temperature every 2 seconds. The stored temperatures are then compared against pre-set values to determine whether an alarm level has been reached.
There are six Heat Detectors to suit a wide variety of operating conditions. Static Heat Detectors respond only when a fixed temperature has been reached. Rate-of-rise Detectors have a fixed upper limit too, but they also measure the rate to increase in temperature.
