SITRANS P320 Pressure transmitter Differential pressure and flow PN160 HART (4...20 mA) Measuring cell filling: Silicone oil Maximum measuring span: 250 mbar (100.5 inH²O) Oval flange, fastening thread: M10 (PN160), M12 (PN420) Diaphragm: Stainless steel 316L/1.4404, measuring cell: Stainless steel 316L/1.4404; Sensor Differential pressure: process flange: Stainless steel 316/1.4408 Die-cast aluminum housing Dual chamber device Intrinsic safety 2 x M20 x 1.5 With display (lid with glass window) Labeling type plate chinese - Pa Functional Safety (IEC 61508) - SIL2/3; Electrical equipment for furnaces and ancillary equipment (EN 50156-2) NEPSI (China)