3730 - 4 Control Valve Positioner Digital Electropneumatic Positioners

Samson Control Valve Positioner Type 3731-3 3730-2 3730-3 3730-4 3730-5 Digital Electropneumatic Positioners

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

• Electropneumatic positioner with HART® communication
• SAM DIGITAL READY
• Die-cast aluminum or stainless steel housing
• Attachment to linear actuators according to IEC 60534-6, VDI/VDE 3847, or SAMSON integral attachment
• Attachment to rotary actuators according to VDI/VDE 3845
• Attachment to double-acting actuators with Type 3710 Reversing Amplifier
• Integrated EXPERTplus diagnostics for control valves
• Any desired mounting position of the positioner (but not suspended)
• Simple one-knob, menu-driven operation
• Easy-to-read display in any mounting position thanks to rotatable reading direction
• Configurable with a computer over the SSP interface using the TROVIS-VIEW software
• Variable automatic start-up thanks to four different initialization modes
• Preset parameters, only values deviating from the standard need to be adjusted
• Calibrated travel sensor without gears susceptible to wear
• Sub (substitution) initialization mode allows the positioner to be started up in case of emergency whilst the plant is running without having to change the valve position.
• All parameters saved in non-volatile EEPROM
• Two-wire system with small electrical load of 410 Ω
• Adjustable output pressure limitation
• Adjustable tight-closing function
• Automatic zero monitoring
• Integrated temperature sensor and operating hours counter
• Two standard programmable position alarms
• Self-diagnostics
• Messages as condensed state conforming to NAMUR Recommendation NE 107, issued over a fault alarm contact or optional analog position transmitter
• DTM file available for integration into FDT frame applications according to specification 1.2

Accessories

• Pressure gauge
• TROVIS-VIEW Software (free of charge)
• Device integration files for engineering tools and systems

Options

• Device compatible with paint
• Additional equipment: inductive limit contact, solenoid valve, analog position transmitter, external position sensor, leakage sensor, binary input​

Mengchuan Instrument Co., Ltd. is located in Liushi Town, Yueqing City, Wenzhou, Zhejiang Province, surrounded by the beautiful world natural and cultural heritage - Yandang Mountain! It is mainly engaged in 2000 differential pressure gauge, red oil differential pressure gauge, pressure differential pressure transmitter, liquid level transmitter, diaphragm pressure gauge, shockproof pressure gauge, electric contact pressure gauge, stainless steel pressure gauge, precision pressure gauge, micro pressure capsule gauge, floating ball liquid level gauge, floating ball switch, liquid level controller, intelligent energy gauge, light column gauge and other products. The products are widely used in machinery and civil industries such as plastics, food, printing, chemical industry, petroleum, medical treatment, oven, light textile, printing and dyeing, air conditioning, family and so on.

The company adheres to the business philosophy of "customer first, forge ahead" and adheres to the principle of "customer first" to provide our customers with high-quality services. Welcome!