High Quality HART Communication Samson 3730-3 Electropneumatic Valve Positioner Valve Controller

The SAMSON Type 3730-3 is an advanced electropneumatic positioner designed for precise control in pneumatic control valves. It assigns the valve position (controlled variable x) to a 4-20 mA DC control signal (reference variable w), ensuring accurate regulation of linear or rotational travel. Suitable for direct attachment to Type 3277 actuators or via IEC 60534-6 (NAMUR) standards, it supports rotary actuators with VDI/VDE 3845 compatibility. Featuring HART communication for seamless integration, it includes built-in diagnostics like EXPERT+ for early fault detection. This positioner is ideal for industrial environments requiring reliable valve positioning, with options for explosion protection and additional equipment like solenoid valves or position transmitters.

• HART Communication: Enables data transmission via FSK on the 4-20 mA loop for remote operation and monitoring.
• Diagnostics: Standard EXPERT or extended EXPERT+ for valve health monitoring, accessible via TROVIS-VIEW software.
• Attachment Flexibility: Direct, NAMUR, or rotary setups; supports external position sensors for separated installations.
• Binary Contacts: Three standard contacts including fault alarm and software limit switches.
• Optional Add-ons: Solenoid valve for forced venting, analog position transmitter (4-20 mA output), inductive limit switch, and pressure limiting via software.
• Firmware Enhancements: Supports HART Revision 5/6, automatic recognition of options, and initialization cancellation.
• Explosion Protection: ATEX, IECEx, FM/CSA certified for hazardous areas.

The Type 3730-3 excels in challenging transit times and ambient conditions, throttling service, and scenarios requiring external travel sensors. It's commonly used in process industries for linear/rotary control valves, such as globe or butterfly valves, ensuring precise flow control in chemical, oil & gas, and manufacturing plants. Examples include limiting valve travel for minimum/ maximum flow or adapting to oversized valves.

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• TROVIS 3730-3: Smart version with enhanced digital features.
• Type 3730-2: Basic electropneumatic positioner without HART.
• Type 3730-5: With FOUNDATION Fieldbus communication.
• Type 3731-3: Explosion-proof variant with diagnostics.
• Type 3710: Reversing amplifier for double-acting actuators.