4-20 mA Actuator Drive

Electronic actuator drive is used to provide proportional control of an electric gear train actuator from a variable milliamp DC signal from a controller.Features Range: Factory set at 4 to 20 mAdc. Field adjustable to accept ranges such as 2 thru 7, 2 thru 12, 7 thru 12, 4 thru 12, 12 thru 20 mAdc. Span: Factory set at 16 mAdc. Field adjustable 4 to 16 mAdc. Start Point: Factory set at 4 mAdc. Field adjustable from 2 to 16 mAdc. Impedance: 250 ohms for constant current output controllers. Other impedances can be obtained by adding series or parallel resistors for controllers without a constant current output. Grounding: Either or both input wires grounded will not cause damage. Maximum: 40 mAdc. Isolation: Optically. Series Operation: A common controller connected in series with two actuator drives will control each drive independently of the other. Hysteresis: Factory set for 3 to 5% of 16 mA span. Hysteresis is the difference between the input signal which will rotate the actuator shaft one way and the level which will drive it the other way. Linerity: 0.15% of actuator rotation. Power Requirements: 120 or 240 Vac, +10%, with fixed input signal offset of +1% maximum. 24 Vac units not available. Power Consumption: 3.5 VA at 120 or 240 Vac, 50 or 60 Hz. Ambient Temperature Limits: -13 to 140° F(-25 to 60°C). Connections: Color coded pigtail leads. Case: Aluminum. Mounting: Directly to actuator. Upright position preferred, but other positions are acceptable. Dimensions: 4-5/8" high x 4-1/16" wide x 2-1/2" deep (117 mm x 103 mm x 63 mm).