The Setra 224 is an ultra-high purity flow-through pressure transducer, built for precise gas monitoring in critical applications where the sensor chamber itself needs to purge easily and stay mechanically and thermally stable. Keeping temperature transients from airflow to a minimum helps it give a consistent, dependable reading rather than one that drifts with process conditions.
Inside, it uses Setra’s variable capacitance technology to convert pressure changes into a linear analog signal through Setra’s own integrated circuit. Wetted parts are VAR 316L stainless steel, passivated to 5 Ra (7 Ra max) finish, and every unit is helium leak tested to 1×10-9 ATM CC/sec. It can withstand bake-out to +185°F without a calibration shift, useful where the gas line itself needs to be baked out before use. Pressure ranges run from 25 to 3000 PSIG (1.7 to 200 bar), with compound options down to -14.7 PSIG, accuracy of ±0.25% FS or ±1.0% of reading, and output of 4-20mA, 0-5VDC, 0.2-5.2VDC, 0-10VDC or 0.2-10.2VDC.
From our experience, this is specified for high-purity gas delivery systems, semiconductor process tools, pharmaceutical and biotech processes, and gas cabinets, wherever precision and gas purity both matter. Before we quote this, we would normally check the pressure range, output signal, and connector type needed. Hope this helps.
