SAMSON ELECTRO PNEUMATIC POSITIONER 3731-3

• Simple attachment to all common linear and rotary actuators with interface for SAMSON direct attachment, NAMUR rib or valves with rod-type yokes according to

IEC 60534-6-1, or to rotary actuators according to VDI/VDE 3845

• Any desired mounting position of the positioner (but not suspended)

• Simple one-knob, menu-driven operation also in hazardous areas

• LCD easy to read in any mounted position due to selectable reading direction

• Configurable with a computer over the SSP interface using the TROVIS-VIEW software

• Variable, automatic start-up with 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 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 450 Ω at 20 mA

• Adjustable output pressure limitation

• Activatable tight-closing function

• Continuous monitoring of zero point

• Integrated temperature sensor and operating hours counter

• Self-diagnostics; messages according to NAMUR Recommendation NE 107, optionally issued by an analog position transmitter