The AP3200 is useful in controlling a motorized valve, damper or any other electrical equipment that required feedback On/Off control. The constant voltage excitation of the AP3200 allows use with feedback potentiometers or slidewires with total resistances from 100 to 100K ohms. DC feedback ranges, such as 4-20mA, are available.

Top-Accessed screwdriver adjustments provide typical 10% zero and span adjustability. Calibration is referred to input and the adjustments are to correct for input/sensor variations. Zero is adjusted to position the valve fully closed with the control signal input at its minimum. Span is adjusted to position the valve fully open with the control signal input at its maximum.