1、 Purpose:

The DKZ type linear electric actuator is the actuator unit in the DDZ type electric unit combination instrument. It receives signals from the regulating unit (or computer) and automatically operates the actuator to complete the regulating task. It is widely used in industries such as power plants, chemical, petroleum, metallurgy, building materials, heating, light engineering, water treatment, etc. It can output force and linear displacement.

DKZ type electric actuator, equipped with various electric operators, can complete the undisturbed switching of "manual ← → automatic" adjustment system, and timely remote manual operation of the regulated object.

The actuator position transmitters produced by our company all use the latest sensing components, referring to the latest circuits of foreign companies. They integrate power transformers, rectification, voltage regulation, power amplifiers, and constant current into one module (M) to improve the reliability and stability of the actuator, making the system safer and more reliable.

The DKZ-B electric actuator adopts an explosion-proof structure with the explosion-proof mark of dIIBT3, and can be used in specified explosive gas environments (refer to GB3836.1-2000 "General Requirements for Electrical Equipment Used in Explosive Gas Environments" for the scope of use).

　2、 Main technical performance

1. Input signal: switch signal

2. Input channels: Three

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

4. Output thrust: see the table above

5. Basic error limit: ± 2.5%

6. Dead zone: ≤ 3%

7. Damping characteristics: ≤ 3 three half cycles

8. Return difference: 1.5%

9. Power supply voltage: 220V (+10%, -15%) frequency 50Hz

10. Operating environment;

① Temperature:

Execution mechanism -10~70 ℃ (-25~90 ℃);

Amplifier 0~50 ℃;

② Relative humidity:

Execution agency ≤ 85%;

Amplifier 10~70%.

③ Explosive gases with explosive transmission capacity not higher than Class II, Grade B, Group T3 are allowed in the air, but they do not contain corrosive substances.

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