Retrofitting Of Optional Extras; Fitting A Potentiometer - Baelz Automatic 373-E07 Operating Instructions Manual

Motorized Linear Actuator

6. RETROFITTING OF OPTIONAL EXTRAS

Disconnect actuator from power supply before starting work!
Danger

6.1 Fitting a potentiometer

Set consists of:
● 1x potentiometer, 200 Ω, 1 kΩ or 5 kΩ
● 1x Torx screw T20
.
● To remove the actuator cover, loosen the 2 Torx T20 flanged button screws slightly and
lift off the cover (see Fig. 4, above).
● Set the valve / actuator to the 50% position (see section 4.3.1 on manual adjustment)
● Set the potentiometer to the 50% position. To do this, turn the potentiometer shaft until
an endstop is reached, then turn it back by 5 rotations (of 10 in total).
● Fit the potentiometer spring into the slot in the white plastic insert, so that the
potentiometer sits flush on the actuator and the potentiometer mounting hole is aligned
with the mounting hole in the actuator (see Fig. 5, below.).
white plastic insert
with slot
W. Baelz & Sohn GmbH & Co. · Koepffstrasse 5 · 74076 Heilbronn · Germany · www.baelz.de
mounting holes
spring
Fig. 5: Aligning the potentiometer
baelz 373-E07
Fig. 4: E07 actuator with
cover removed
fit the spring into the
slot
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