Application

DKJ electric actuator is an actuating unit of the DDZ series electric unit combination instruments. It receives the output signal from the control unit and automatically drives the actuator to complete the regulation task. It is widely used in electric power, chemical, petroleum, metallurgy, building materials and other industries.

Equipped with various electric operators, DKJ electric actuators can realize bumpless manual-automatic switching of the control system and remote manual operation of the controlled object.

DKJ series actuators are equipped with dual protection of terminal electrical limit and mechanical limit. The position transmitter adopts a modular structure.

Main Technical Specifications (matched with DFC servo amplifier)

1.Input signal: Type Ⅲ: 4–20 mA DC or Type Ⅱ: 0–10 mA DC

2.Input channels: 3 channels

3.Input channel resistance: 250 Ω for Type Ⅲ; 200 Ω for Type Ⅱ

4.Output torque: See table

5.Full stroke time: See table

6.Basic error limit: ±2.5%

7.Hysteresis: ≤ 1.5%

8.Dead band: ≤ 3%

9.Damping characteristic: ≤ 3 half-cycles

10.Power supply: Single-phase, 50 Hz

11.Ambient temperature: -10 ℃ to +55 ℃ or -25 ℃ to +70 ℃Relative humidity: ≤ 95%