1 Functions and features The airflow monitor monitors airflows. It detects whether a preset airflow has been reached (= green LED lights, output relay energised for NO, de-energised for NC). If the flow is below the preset value, the red LED lights, the output relay is de- energised for NO, energised for NC.
To avoid malfunction: ► a minimum distance between the airflow monitor and bends, valves or such like must be observed. min. min. 3 x D 5 x D 3 Electrical connection The unit must be connected by a qualified electrician. The national and international regulations for the installation of electrical equipment must be adhered to.