For constant tension winding systems - using the large series (KB, POB, PLB) brakes or (KC, POC, PHC) clutches, ultrasonic sensor, signal isolation card, and your power supply that accepts a 0-10 volt control signal.
The Signal Isolation Card 'SIC' powers the ultrasonic sensor.
The ultrasonic sensor measures the diameter of the roll, to keep tension constant as the roll size changes, & sends a 0-10 VDC signal to the 'SIC'.
The SIC 0-10 volt DC output signal controls a Placid Industries PST your constant current D.C. power supply.
Web tension is adjusted by the Tension Adjustment Potentiometer.
A.C. Input . . . . . . . . 110 / 220 VAC, user selectable, 50/60 Hz., 6.8 V.A. max. A.C. Input Fuse . . . . . 0.5 amps (External, supplied by customer) Output. . . . . . . . . . 0 to 12 volts D.C., max. Adjustable to standard 0-10v limit & lower. 0-10v Input Impedance . . 1 Meg Ohms Input-Output Isolation . . Yes