Yokogawa PH202S-U-E pH ORP Process Transmitter

The Yokogawa PH202S-U-E pH/ORP process transmitter is a 2-wire, loop-powered analyzer that accepts high-impedance pH or ORP sensor inputs and outputs a standard 4–20 mA signal with digital communication (HART/BRAIN typical). Built for industrial liquid analysis, it includes temperature compensation, calibration functions, and diagnostics, and is housed in a field-mount enclosure rated IP65 / NEMA 4X typical for rugged field installations. Common applications include water treatment, chemical processing, food and beverage production, and wastewater facilities, with wall, pipe, or panel mounting to fit a variety of process layouts. For compatibility, it lists direct modern replacements such as Yokogawa FLXA21 and FLXA402 analyzers, and Endress+Hauser Liquiline pH transmitters.