Valmet ADC Electric Actuator, 600in-lb, 12VDC

Simple set and go calibration of Zero and Span. On board pot calibration, no additional instruments required. Extended life power source for modulating back-up actuators. Simple switch-select reverse acting set-up; no wiring changes. Control and feedback interface (2860 modulating board). Control signal (input) selection via slide switch 4-20 mA or 0-10 VDC. Feedback signal (output) selection via slide switch 4-20 mA or 0-10 VDC. Signal range can be split, i.e., 4-12 mA or 12-20 mA. Control signal fail position via a slide switch; select fail last (in place) or fail Zero (minimum signal position) upon loss of control signal. Loss of power position; user can select, via a slide switch, fail to Zero or fail to Span, upon loss of input power. Dead band, adjustable from approximately 0.5% to approximately 2.5%. On-board supervisory control allows the user to safely position the valve or damper via CW and CCW push buttons.