Product Description: 381(361) series direct stroke (381L) and angular stroke (381R), based on AC220 single-phase AC power supply, accept DC4 ~ 20mA from DCS, PLC system and other operators, standard signals to control the actuator for valve opening and opening or automatic adjustment. The electronic control module adopts the hybrid integrated circuit of ***xj****, which contains complete protection functions and can be controlled on-site or remotely. It is designed in the form of a box and sealed by casting resin. Drive feedback using high performance conductive plastic potentiometer, high precision, long life and other characteristics, can be combined with a variety of Angle stroke adjustment mechanism into high performance, high reliability of electric regulating valve. Therefore, it is widely used in metallurgy, power generation, petrochemical, papermaking, light industry and environmental protection and other industrial sectors.

The main characteristics of the actuator:

1. The actuator is designed with a servo system (no additional servo amplifier is needed), which can work only by accessing DC4 ~ 20mA (or DC1 ~ 5V) signal and AC220V single-phase power supply. Equipped with wiring terminals, wiring is very simple and convenient.

2. The key part of the actuator, the controller, adopts the hybrid integrated circuit of ***xj****, which is sealed and cast with resin. The shape is box shape, small size and high reliability.

3. The feedback detection of driving quantity adopts high performance conductive plastic potentiometer, resolution < 0.4%.

4, with self-diagnosis function, when the fault occurs, the indicator light on the controller will immediately send an indication signal.

5, with the state selector switch can be set off signal, (spool in the fully open, fully closed or self-locking state).

6, with the state selector switch can be set (positive and negative action).

7. The input signal can be set as (DC4 ~ 20mA or DC1 ~ 5V) with the status selector switch.

8. It is easy to adjust the zero point (starting point) and stroke (ending point) of the work.

9, when the sudden power failure, to ensure that the spool self-lock.

10, adopt synchronous belt drive, effectively reduce the noise.

11, delay protection function, rated load, can implement state self-lock, fault occurs, can immediately start protection, and can reverse operation to cancel the delay protection.

Technical parameter

Power supply: AC220&plusmn; 50%, 50HZ.

Power consumption (at rated load)

Specification Type A actuator 50VA;

Specification Type B actuator 150VA;

Specification Type C actuator 220VA.

Input signal: DC4 ~ 20mA or DC1 ~ 5V.

Output signal: DC4 ~ 20mA (load resistance 500&Omega; The following).

Control accuracy: Basic error: &plusmn; 1% return &le; 1% dead zone &le; 1%

Working stroke adjustment range: &ldquo; Zero; &plusmn; 25%&ldquo; The length of the journey. 20% ~ 100%

External wiring: Input and output signals should be shielded cables. The power cable and signal cable must not share the same cable.