Buchi Rotavapor R-220 Pro Continuous - Cooling Water Flow Sensor

5 Putting into operation
35 R-220 Pro Continuous Operation Manual, Version A
5.4.1 Cooling water ow sensor
The switching threshold of the ow sensor can be adjusted by shifting the sensor element up and
down.
CW Flow
a
c
b
Adjustment instructions
X Make sure the ow sensor is installed in an upright position! Loosen the locking screw a.
X Switch on the Rotavapor® and shift the sensor far downwards. The display must not show a
ow sensor error in this position.
X Subsequently shift the sensor upwards until it generates a ow sensor error on the display (E12,
"FLOW"). To avoid unintentional switching, lift the sensor 2-3 more millimeters and tighten the
locking screw to x the sensor position.
X Turn on the cooling water. The error should now disappear.