The DS34 is a differential pressure switch for overpressure, underpressure and differential pressure measurements. The uncomplicated and robust membrane measuring mechanism is suitable for all neutral media, such as service water, heating water, neutral gases and oils. Due to the pressure or differential pressure to be measured, a one-sided force acts on the membrane. This force moves the membrane system against the pre-tensioned measuring range spring. A switch tappet mounted on the membrane actuates a micro switch. The switch point can be set with an adjustment spindle. A scale plate and a setting mark attached to the housing indicate the respective set switch point.
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