Special features Smart positioner with HART® communication SAM DIGITAL READY High air capacity Integrated EXPERTplus diagnostics with partial stroke testing for valves in safety-instrumented systems Modular design: simple to install or exchange pneumatic or option modules Simple attachment to all common linear and rotary actuators: SAMSON direct attachment, NAMUR rib, to valves with rod-type yokes according to IEC 60534-6-1, according to VDI/VDE 3847, to rotary actuators according to VDI/VDE 3845 Non-contact position sensing Plain-text display with NAMUR Recommendation NE  107 states and messages on the device Integrated diagnostic functions 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 All parameters saved in non-volatile EEPROM Two-wire system with small electrical load 495 Ω 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 Integrated EXPERTplus diagnostics for control valves Pressure sensors to monitor the supply pressure and signal pressure Air capacity adjustable by software Accessories TROVIS-VIEW Software (free of charge) Device integration files for engineering tools and systems Options Pneumatic modules Analog position transmitter Software limit contacts Binary output Binary input Forced venting Inductive limit contacts Mechanical limit contacts Pressure sensors