381R（361R）adjusting angle travel electric actuator, using AC220 single-phase as power, receive DC4～20mA form DCS、PLC system or other operators, to control operator for opening and closing valve or automatic regulation. Electronic control module using advanced hybrid integrated circuits, with complete protection, can field control or remote control. Drive feedback valve using high performance of conductive plastic potentiometers, high precision, long life and so on, can be combine with all kinds of angle travel actuators, producing electric adjusting valve of high performance、high reliability. Widely used in metallurgy, power generation, petrochemical, paper, light industry and environmental protection industry.
341 series of switch actuator is the ON-OFF control electric actuator produced based on 381 series of electronic actuator. This actuator using 220V single-phase AC power as drive power, control signal using positive、negative switch contact signal, drive motor is AC reversible motor, feedback check of drive valve using conductive plastic potentiometers of high performance. High response speed, convenient installation and maintenance.
1.Features
1.1 with servo system(no need to add servo amplifier), just access DC4～20mA（or DC1～5V）signal and AC220V single-phase power, then it can work. Equipped with terminals inside, simple and convenient wiring.
1.2 key part of actuator-controller, using the most advanced hybrid integrated circuits, sealed with a resin casting, box shape, small size, high reliability
1.3 feedback check of drive valve using conductive plastic potentiometers of high performance., resolution<0.4%
1.4 With self-diagnostic function, when go wrong, indicator of controller will produce indicator signal immediately.
1.5 state-selection switch can set off signal, (valve spool is fully open, closed or self-locked)
1.6 state-selection switch can set( positive、negative action)
1.7 state-selection switch can set input signal(DC4～20mA or DC1～5V）
1.8 convenient to adjust work zero(starting point) and travel(end)
1.9 when power is out, ensure valve spool self-lock
1.10 using synchronous belt drive, efficiently reduce noise
1.11 delayed protection, when rated load, can self-lock state, when go wrong, can start protection immediately, reverse operation cancel delayed protection
