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Samson 3730-1 Electro-pneumatic Positioner

Samson 3730-1 electro-pneumatic positioner adopts die-cast aluminum or stainless steel housing. It is a linear actuator product conforming to IEC 60534-6, VDI / VDE 3847, or SAMSON one-piece attachment. Samson 3730-1 electro-pneumatic positioner uses 3710 type commutation amplifier to connect double-acting actuator, any positioner installation position is possible. Samson 3730-1 electro-pneumatic positioner uses a simple single knob, menu-driven operation.

Product Features

Samson 3730-1 digital electrical valve positioner mounted to the pneumatic control valve. The valve positioner accepts the electric control signal output by the control system or the controller and assists the pneumatic actuator to adjust the valve position and achieve accurate positioning according to the preset setting relationship. The valve positioner will compare and process the input control signal and the feedback quantity of the control valve position stroke or rotation Angle (adjusted parameter X), and then output the corresponding pneumatic control signal PST to the pneumatic actuator. Samson 3730-1 digital electrical valve positioner is mainly composed of an electronic unit with a microprocessor, an analog electrical converter, an output pneumatic amplifier, and a valve position sensor.

When the input control signal changes or there is a deviation of the valve position, the pneumatic actuator pressure or pressure relief. If necessary, the output gas volume can be adjusted to improve the signal pressure effect. An air calibrator with a fixed set value empties a constant air volume for positive pressure purge in valve positioner housing and optimizes the output capacity of pneumatic amplifiers. An air-source with constant pressure supplied to the electrical converter by the air source pressure regulator and is not affected by changes in the external air source pressure.

The valve positioner is operated by the single knob button which is easy to be mastered by the user. The parameters are selected by turning the knob button and the required setting is activated by pressing the knob button. All parameters in the menu are listed on the same level, there are no submenus. All parameters can be checked and modified by the machine. LCD can display all parameters, the reading direction can be reversed 180, no need to change the hardware position, as long as the configuration parameter setting can be achieved by pressing.

Product Parameters

Product name Samson 3730-1 electro-pneumatic positioner
Usage Challenge transportation time

Challenging environmental conditions

Throttle service

Annex Linear actuator, single acting

Linear actuator, double acting

Rotary actuator, single acting

Rotary actuator, double acting

Explosion proof Type of protection “intrinsically safe”

No certification

Communication Not needed
Control loop 4 to 20 mA
Optional solenoid valve Not needed
Valve diagnosis Not needed
Minimum current 3.7mA
Direction of action W/X reversible

Application and After-Sales Service

The main application areas of valve positioners include:
1. Coal gasification project
2. Clean energy gasification unit
3. Electricity
4. Hydrocarbons
5. Water supply and water treatment
6. Pulp and paper
7. Industrial environment
8. Food and beverage
9. Life sciences and other fields

After-sales service

Online support and Video technical support.

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