This series of smart handheld features a powerful dedicated microcontroller as the core component ,then all the key parameters set by the panel,the table no potentionmeter adjustment ,the instrument reliablity improved significantly,with various domestic intelligent or computer-controller regulator supporting the use of system as a back-hand operation output unit.

 

 

Characteristic

DFD series of smart handheld in automatic state, it came under the regulator control signal and the current valve position feedback signal error output inversion signal, and in the manual state, through the control panel buttons on the positive stop , reverse, directly connecting with the electric actuator unit, eliminating the need for servo amplifier.

DFQ series of smart handheld in automatic state, the output signal from the regulator or the system input signal; in manual state, through the control panel buttons on the output signal can be directly and 1.2 type with electrical actuators and - gas valve positioner or electric - gas converters supporting the use of pneumatic actuators.