Operation; Setting The Switching Threshold; (Sensitivity); Rotational Movement Display - Endress+Hauser OFTE20 Operating Instructions Manual

Point level switch
6

Operation

WARNING
L
The device is not explosion-protected if the housing is open.
‣
The device may only be opened in the hazardous area if no supply voltage is applied.
Therefore the device may only be operated in a de-energized state or outside the hazardous
area.
6.1 Setting the switching threshold (sensitivity)
The switching threshold can be set in 3 stages via an operating element that is accessible from
above. The threshold can also be set during operation (in the non-hazardous area):
• Minimum: 80 g/l (4.99 lb/ft³)
• Adjustable in 3 stages depending on the density of the bulk solids: low, medium (factory
default), high
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Setting the switching threshold

Setting the switching pressure
1. Move the operating element counterclockwise as illustrated in the graphic.
2. Move the operating element to the desired position and let it click into place.
6.2

Rotational movement display

The shaft' s rotational movement is displayed by a ratchet disk fitted on the drive axle of the
rotary paddle. The viewing area is lit up by an LED to make it easier to see. The rotational
movement of the disk, and therefore also the shaft, can be checked through an inspection
opening in the cover of the internal compartment when the cover is closed.
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2.
1.
Operation
2.
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