Calibration
1. Supply 4mA input signal to the positioner and check if valve position made to its target
position. For Direct Action (DA), supply 20mA instead of 4mA for input signal.
2. Press 4mA button on the PCB for 3~4 seconds. LED lamp will blink indicating that the
PCB has calibrated the specific position to give 4mA as feedback.
3. Repeat above step for 8mA, 12mA, 16mA, and 20mA. For 2 point setting, only 4mA
and 20mA should be set