Pro-Range PR15-PA-012 0-12 bar Pressure Transducer - 4-20mA Output, G1/4" Thread

The PR15-PA-012 uses a standard two-wire 4-20mA current loop. Connect the positive supply voltage (10-32V DC) to the red wire, and the signal output/return to the black wire, which must be connected through your PLC's analog input or a precision resistor (≤500Ω) to ground to read the current as a voltage. Ensure proper grounding for noise immunity.

The working pressure (0-12 bar) is the intended measurement range. Overload pressure (25 bar) is the maximum pressure the sensor can withstand temporarily without permanent damage. Burst pressure (36 bar) is the absolute maximum pressure that may cause mechanical failure. Always design systems with a safety margin below the overload rating.

The wetted parts, including the stainless steel diaphragm and housing, offer good corrosion resistance against many common fluids, including water and oils. For highly aggressive media (e.g., strong acids, chlorides), verify the specific stainless steel grade (typically SUS304/316) compatibility with your fluid. The IP65 rating protects the electronics from external splashes but does not relate to media compatibility.

Use a scaling formula in your PLC or microcontroller: Pressure (bar) = ((Current_mA - 4) / 16) * Full Scale (12 bar). For example, 12 mA corresponds to ((12-4)/16)*12 = 6 bar. Ensure your analog input is configured for current measurement, typically by reading voltage across a precision 250Ω resistor, which gives a 1-5V signal.