Buchi Rotavapo R-220 SE User Manual download pdf (Page 37)

5 Putting into operation

37 R-220 SE Operation Manual, Version F

5.3.2 Cooling water ﬂow sensor

The switching threshold of the ﬂow sensor can be adjusted by shifting the sensor element up and

down.

CW Flow

Adjustment instructions

• Make sure the ﬂow sensor is installed in an upright position! Loosen the locking screw a.

• Switch on the Rotavapor and shift the sensor far downwards. The display must not show a ﬂow

sensor error in this position.

• Subsequently shift the sensor upwards until it generates a ﬂow sensor error on the display

(E12, "FLOW"). To avoid unintentional switching, lift the sensor 2-3 more millimeters and tighten the

locking screw to ﬁx the sensor position.

➡ Turn on the cooling water. The error should now disappear.

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Buchi Rotavapo R-220 SE User Manual Page 37