
A NAMUR amplifier with a relay output can be supplied as an optional element. OPERATION The indicator needle moves together with the vane mounted on its shaft. When the vane enters into the slot of the detector, the limit switch changes its state. The detector, is mounted on a support which includes an indicator on the scale, that shows the switching position. This support is guided by the scale plate slot. SWITCHING POINT ADJUSTMENT To gain access to the limit switch inside the indicator housin