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Follower Arm Potentiometers


MAINTAIN CONSTANT TENSION - The follower arm potentiometer is used to maintain constant tension when using a brake for producing unwind (payout) tension, or when using a clutch for rewind tension.

Miniature model
for rolls up to 6" diameter
        
Aluminum cased model
for 4" dia. & larger rolls
Follower photo
FM-4-2
          
F-12-6

Unwind Follower Drawing

The arm rides on the roll, measuring the roll diameter. As the roll size decreases, the arm moves downward, rotating the potentiometer shaft. The power supply current automatically decreases, which decreases the brake (or clutch) torque to maintain constant tension.

Follower Arm Potentiometer
Follower Drawing
Part Number :  F-12-6,      (12 inch arm,   6 foot cable)
Download drawing in PDF format



Mini-Follower Arm Potentiometer
Mini-Follower Drawing
Part Number :  FM-4-2,      (4 inch arm,   2 foot cable)
Download drawing in PDF format



Specifications
  MODEL
F-12-6
 (Aluminum Case) 
FM-4-2
    (Miniature)    
Resistance 500 ohm
Electrical Angle 65 degrees
Mechanical Angle 360 degrees  (No stops)
Drag Torque 4 oz.-in. 1 oz.-in.
Overhung Load 20 lbs. 2 lbs.
Download set-up
instructions
pdf icon.gif pdf icon.gif

Connects to PS, PS-M, PS-MC Placid Industries power supplies.


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