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A sliding contact moves along a linear resistive element acting as a variable resistor. The proportional change in resistance indicates the position and provides a distance measurement signal. A signal conditioner can be used with the potentiometers to convert the signal to 0-10V or 4-20mA.
Eight series of linear potentiometers are available. Configuration styles include slide housing, heavy duty cylinder with rod eyes, rodless slide, spring loaded with ball tip, ½ in. diameter cylinder with flange, rod eye or bracket mounting, and ¾ in. cylinder with rod eye mounting. Stroke lengths vary from 10 to 1000 mm depending on the series.
Starting at $146.00, Gefran linear potentiometers are CE approved and have a 3-year warranty.