3731-5

Special features

• Electropneumatic Ex d positioner with FOUNDATION™ fieldbus communication
• Die-cast aluminum or stainless steel housing
• Attachment to linear actuators according to IEC 60534-6 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
• Integrated function blocks: 1 PID Control (PID), 1 Analog Output (AO), 1 binary input for DC voltage signals (DI1) or for connection of a floating contact (DI2)
• 2 DI function blocks to analyze binary input signals
• Any desired mounting position of the positioner (but not suspended)
• Simple one-knob, menu-driven operation also in hazardous areas
• 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 between 300 and 350 Ω at 20 mA
• Adjustable output pressure limitation
• Adjustable tight-closing function
• Automatic zero monitoring
• Integrated temperature sensor and operating hours counter
• Self-diagnostics
• Messages as condensed state conforming to NAMUR Recommendation NE 107, issued over a fault alarm contact or optional analog position transmitter

Accessories

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

Options

• Device compatible with paint
• Additional equipment: binary input, forced venting function