SAMSON 3730-2 Digital Valve Positioner 4-20mA | Advanced Electropneumatic Positioner | LCD Display

Product Description

SAMSON Type 3730-2 Function-Rich Digital Valve Positioner – Advanced Electropneumatic Positioner

The SAMSON Type 3730-2 Digital Valve Positioner is an advanced electropneumatic valve positioning device manufactured by SAMSON AG, Germany. It is designed for accurate control and monitoring of pneumatic control valves in industrial process automation, chemical plants, power stations, HVAC systems and manufacturing facilities.

The SAMSON 3730-2 receives a standard 4–20mA control signal from a PLC, DCS or process controller and converts it into the corresponding pneumatic output pressure to accurately position the connected control valve.

Compared with the basic SAMSON 3730-1, the 3730-2 offers function-rich parameterization and advanced EXPERTplus diagnostic capabilities. It supports configurable valve characteristics, travel ranges, control parameters and performance monitoring to help optimize control valve operation.

The positioner features an integrated LCD display, user-friendly rotary pushbutton operation, automatic initialization and a calibrated travel sensor without gears susceptible to wear. It also supports local configuration through the SAMSON SSP interface using TROVIS-VIEW software.

For industrial customers in Bangladesh, the SAMSON 3730-2 is suitable for ETP, STP, WTP, boiler automation, steam control, chemical processing, power generation and industrial pneumatic valve control applications.

6. Technical Specifications

*Specifications depend on the selected device version and accessories.

7. Key Features and Benefits

• Genuine SAMSON Germany digital valve positioner.

• Function-rich digital parameterization.

• Standard 4–20mA DC input signal.

• Advanced EXPERTplus valve diagnostics.

• Automatic valve and actuator initialization.

• Integrated LCD display.

• Easy rotary pushbutton operation.

• Four automatic initialization modes.

• Gearless calibrated travel sensor.

• Configurable valve characteristics.

• Adjustable travel range and control parameters.

• Local communication through SSP interface.

• TROVIS-VIEW software configuration.

• Permanent parameter storage in EEPROM.

• Adjustable output pressure limitation.

• IP66 / NEMA 4X enclosure protection.

• Compatible with single-acting and double-acting pneumatic actuators.

8. EXPERTplus Diagnostic Functions

One of the major advantages of the SAMSON 3730-2 is its EXPERTplus diagnostic functionality.

Key diagnostic capabilities include:

1. Valve travel monitoring.

2. Setpoint deviation monitoring.

3. Valve operating cycle counting.

4. Data logging and status monitoring.

5. End-position trend monitoring.

6. Drive signal analysis.

7. Static characteristic testing.

8. Partial stroke testing.

9. Full stroke testing.

10. Valve performance monitoring.

These functions help maintenance engineers identify potential valve problems, monitor operating conditions and plan preventive maintenance.

9. Industrial Applications in Bangladesh

• Textile and garment manufacturing factories.

• Pharmaceutical manufacturing plants.

• Food and beverage processing industries.

• Chemical and petrochemical plants.

• Power generation plants.

• Boiler and steam control systems.

• ETP, STP and WTP automation.

• Oil and gas process automation.

• HVAC and industrial temperature control.

• Paper and pulp manufacturing.

• Water treatment and wastewater management.

• Industrial pneumatic control valve systems.

10. Mounting Compatibility

The SAMSON 3730-2 supports different mounting arrangements for pneumatic control valves.

• SAMSON Type 3277 pneumatic actuator – direct mounting.

• Linear actuators according to IEC 60534-6-1 (NAMUR).

• Linear actuators according to VDI/VDE 3847.

• SAMSON Type 3510 Micro-flow Valve.

• Rotary actuators according to VDI/VDE 3845.

• Compatible single-acting and double-acting pneumatic actuators.

Mounting brackets, connecting blocks and accessories may need to be purchased separately.