SITRANS P320 Pressure transmitter Differential pressure and flow PN160 HART (4...20 mA) Measuring cell filling: Silicone oil Maximum measuring span: 20 mbar (8.037 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, Explosion proof, Dust ignition proof zone 21/22 (DIP), increased safety zone 2 2 x 1/2-14 NPT With display (lid with glass window) Labeling type plate English – Pa Ex plate made of stainless steel 1.4404/316L NEPSI (China)