BUCHI Rotavapo R-220 SE - Manual (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
b
a
c
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.