Control of ventilation in galvanizing plants

Environmental protection requirements force the operators of galvanizing plants to suck off detrimental waste gases. E. g. in case of filter stoppage pressure measuring units cannot prove the existance of flow. Under such ambient conditions Proxitron air flow controllers with a surface of plastic material which resists aggressive attacks have showed to be successful. As in case of proximity switches connection is done for direct controlling of SPS or for direct AC operation. In solcher Umgebung bewähren sich Luftstromwächter von Proxitron, deren Kunststoffoberfläche den aggressiven Angriffen standhält. Der Anschluß erfolgt wie bei Näherungsschaltern zum direkten Ansteuern von SPS oder für den direkten AC-Betrieb.