MCX120A Potentiometer Cable Sensor Technical Information DESCRIPTION MCX120A Potentiometer Cable Sensor Technical Information Overview The Cable Sensor MCX120A uses a 10-turn potentiometer as the sensing element for length measurement.
It is designed for use as a feedback sensor in e.
g.
measuring the cutting depth of a planer.
The Sensor consists of a 10-turn potentiometer, a spring mechanism and a spooled steel cable.
The potentiometer with a total resistance of 1 kΩ (± 10 %) converts the cable length into a usable electrical signal.
With the complete retracted cable the resistance between B and C is about 800 Ω.
During pulling the cable the resistance is reduced down to minimum about 300...

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