Pneumatics

Key Roles and Features 

• The LCD display allows users to monitor the status of the positioner. 
• The approach of using 4 buttons is easily understood by users since it functions the same in all versions of interfaces for the firmware. 
• If an unusual circumstance such as a momentary blackout occurs, our boot-time positioner takes just 0.5 seconds to decrease the valve travel, which therefore reduces the valve travel. Increase device security.
• Also, sudden changes in supply pressure and/or high vibration conditions are usually controlled by Positioner.
• The Auto Calibration method is very easy. 
• As an advantage of having very low air consumption, in large scale plants may dramatically reduce operating costs.
• It is compatible with most controllers.
• Also in the field, orifices may be installed to minimize the incidence of hunting and optimize operating conditions.
• HART communication (HART option) can process various positioner information.
• By generating an analog feedback signal, the valve mechanism becomes more robust.
• Linear, Quick-Open, Equal Percentage, and Custom, which can be defined by 18 points, can be modified for various valves.
• Tight Shut-Close and Shut-Open can be configured.
• Without an additional communicator, you can change the PID parameters in the field.
• A/M switch can be used to direct supply air to the actuator or to manually operate the positioner or valve without any signal.
• The 4~12mA or 12~20mA split range can be set.
• The operating temperature for the YT-3301 sensor module is -40 ~ 120°C.
• The positioner operating temperature is -30 ~ 85 °C or -40 ~ 85 °C (certified explosion-proof temperature please datasheet)