Heat velocity – maximum heat sensor
The heat velocity and maximum temperature sensor can be used for alarm systems. It detects heat using a combined evaluation method when the maximum value (57 °C) is reached or when the rate of temperature increase exceeds the value required by the EN 54 standard. In this case, the sensor gives a signal, the LED flashes and switches the relay contact. The relay is NO by default, it can be set to NC with a jumper.