TROVIS SAFE 3731-3

Special features

• Electropneumatic Ex d positioner with HART® communication
• Certified according to IEC 61508/SIL
• Preset parameters for on/off valves in safety-instrumented systems
• Integrated EXPERTplus diagnostics with partial stroke testing (PST) function
• Optional fault alarm output for alarms generated by the EXPERTplus valve diagnostics
• Die-cast aluminum 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
• 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
• 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

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