The Siemens 6DR5013-.....-.... is a SIPART PS2 smart electropneumatic positioner accepting a 4-20mA control signal. It is built for single-acting actuators — pneumatic linear or part-turn — and uses a non-contacting, wear-free position detection system (NCS). The aluminum enclosure carries both Ex and non-Ex approvals, so it fits hazardous-area valve assemblies as well as general-purpose plant air.
The 4-20mA analog input is the standard loop for DCS/PLC control — no HART protocol mentioned here, so treat this as a straight 4-20mA positioner. Single-acting means it drives a spring-return actuator (one pneumatic output, spring to fail). The non-contacting NCS sensor eliminates mechanical wear and linkage backlash, which is the main drift source on older cam-follower positioners. Aluminum enclosure is lighter than stainless but still corrosion-resistant for most process environments; if you need washdown or aggressive chemical exposure, confirm the enclosure rating against your area classification.
SIPART PS2 positioners are the standard fit for pneumatic control valves in process plants — refineries, chemical units, power generation, water treatment. The 4-20mA loop interface ties directly into any analog output card on a DCS or PLC. Single-acting covers the majority of spring-return valve actuators; if your valve is double-acting, you need a different variant.