The actuators accepts 4-20mADC input signal to achieve position and process control, and use an absolute type, linear position sensing device provides 4-20mADC valve position feedback. Analog input signal with electrical isolation, short circuit protection, open circuit detection, and can be non-polar connection, user-friendly field wiring and commissioning. The control module uses solid state starter for three-phase or single-phase power supply, meet at least 1200 starts / hour requirement.
Loss of Signal: Input signal <= 2mA
Signal disconnection: Input signal <= 0.5mA
Signal overrun: Input signal >= 30mA
Greatork actuator adopts double seal protection design, the shell is completely waterproof, dustproof and airtight, up to the highest degree of protection IP68. Dual seal design allows electrical chamber and terminal chamber is completely isolated. When opening the terminal cover wiring in initial installation period, it can continue to protect the electrical components of the chamber.
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