SAMSON 3730-3 Electropneumatic positioner

SAMSON 3730-3 Electropneumatic Positioner with HART® communication, Series 3730. Positioner designed for precise control of pneumatic control valves in industrial process automation. Featuring advanced diagnostics, flexible communication options, and robust construction, the 3730-3 ensures accurate valve positioning, improved process efficiency, and reduced maintenance costs. It is suitable for both linear and rotary actuators across a wide range of industries. The positioner ensures a predetermined assignment of the valve position (controlled variable x) to the input signal (set point w). It compares the input signal received from a control system to the travel or rotational angle of the control valve and issues a corresponding output signal pressure (output variable y).

Special features

• Simple attachment to all common linear and rotary actuators
• Any desired mounting position of the positioner (but not suspended)
• Simple single-knob, menu-driven operation
• LCD easy to read in any mounted position due to selectable reading direction
• Configurable with a PC over the SSP interface using the TROVIS-VIEW software
• Variable, automatic start-up with four different initializati on modes
• Preset parameters – only values deviating from the standard need to be adjusted
• Calibrated travel sensor without gears susceptible to wear
• Sub initialization mode (substitution) allows the positioner to be started up in case of emergency whilst the plant is running without the valve moving through the whole travel range.
• Permanent storage of all parameters in EEPROM (protected against power failure)
• Two-wire system with a small electrical load of 410 Ω
• Adjustable output pressure limitation
• Activatable tight-closing function
• Continuous monitoring of zero point
• Integrated temperature sensor and operating hours counter
• Two standard programmable position alarms
• Self-diagnostics; alarms as condensed state conforming to NAMUR Recommendation NE 107, issued over a fault alarm contact or optional analog position transmitter
• Integrated EXPERTplus diagnostics for control valves

Anwendung

Single-acting or double-acting positioner for attachment to pneumatic control valves. Self-calibrating, automatic ad
aptation to valve and actuator.
Set point 4 to 20 mA
Valve travel 3.6 to 300 mm
Opening angle 24 to 100°

Partnering with HKXYTECH

By sourcing the SAMSON 3730-3 Positioner through HKXYTECH, customers benefit from:

• Genuine SAMSON products with guaranteed authenticity and quality.
• Fast delivery and competitive pricing to meet project and maintenance schedules.
• Professional technical support for selection, configuration, and commissioning.
• Integrated automation solutions, combining SAMSON valve technology with HKXYTECH’s application expertise to optimize process performance and reliability.

SAMSON 3730-3 Digital Electropneumatic Positioner – Precision Valve Control with HKXYTECH