EAMS Series

Intelligent electric devices are a new generation of smart products. Advanced ultra-large-scale digital integrated chips, professional digital torque sensors and digital displacement sensors, selectable language operation and display, and mechatronic structural design create perfect functions, excellent performance, lightweight and beautiful appearance, simple debugging, and convenient operation. They are more suitable for use with various valves to form actuator units, and are applied in automatic control systems in power stations, petroleum, steel, chemical, oil pipelines, and wastewater treatment, meeting the requirements of both frequent adjustment control and intermittent control.

Main features of the intelligent electric device:

*Uses large-scale digital integrated chips, powerful functions, and high precision.

*Mechatronic design, small size, and light weight.

*Uses professional pressure sensors to measure the torque value of the output shaft, improving the accuracy of the torque measurement value, with an error rate ≤5%, and can be dynamically monitored and displayed. Over-torque and stalling can trigger alarms.

*The displacement sensor uses an absolute encoder; the valve position will not be lost, ensuring high precision, zero wear, long life, and strong anti-interference capability, without the need for battery support.

*The functions, parameter settings, debugging, and on-site electric operation of the intelligent electric device are all set via a handheld infrared remote control, without needing to open the cover.

Main Technical Parameters

*Input signal: 1) Analog signal a. 4-20mA.DC input impedance 250Ω

b. 0-10mA.DC input impedance 250Ω

2) Switch signal

*Output signal: 1) Valve position feedback signal: 4-20mA.DC load impedance ≤750Ω

*Output shaft torque, speed, stroke, power, and time, see sample.

*Basic error: 1) Rotary stroke electric device ≤ ±1%

2) Linear stroke electric device stroke ≥25mm ≤ ±1%

*Midway limit: Open limit setting range is 40%~100%

Close limit setting range is 0%~60%

*Gap: 1) Linear stroke intelligent electric device ≤1mm

2) Rotary stroke intelligent electric device ≤1°

*Power supply: Three-phase three-wire system voltage: 220V, 380V, 415V, 440V, 460V.

Frequency: 50/60Hz

*Protection level: IP68

*Explosion-proof grade: Explosion-proof type dIICT4

*Output contact capacity: 220V.AC, 5A; 30V.DC, 5A

*Operating environment conditions: 1) Ambient temperature: -40~+70℃

2) Relative humidity: 5%~98%

3) Atmospheric pressure: 86~106kPa;

4) Air medium: No corrosive gases in the surrounding air.

*Anti-interference index: 1) External magnetic field ≤400A/m, 50Hz

2) Common mode interference 250V, 50Hz

3) Differential mode interference Effective value of 1V AC signal

Frequency 50Hz, phase 0~360°

4) Electrostatic discharge: 4Kv

5) Radio frequency interference: Frequency 80~1000MHz Test field strength 3V/m, distance 1m

6) Surge interference: 1kV