Alerton Pressure monitor (Ex) for burnable gas (Ex-DGM) For overpressure monitoring in Ex-applications of fuel gases. Degree of Ex-protection: CE 0035 Ex II 2G Ex db eb IIC T6 and CE 0035 Ex II 2D Ex tb IIIC IP65 T85oC. Kind of pressure: overpressure, relative Pressure connection: internal thread G1/4, external thread G1/2 Electrical connection: terminal connection M16x1,5 Protection class: IP65 Housing material: rugged housing of seawater resistant aluminium die casting GD Al Si 12 Sensing element material: 1.4104 + 1.4571 Media temp.: -15...60C Media temp. limit: temperatures up to 80 oC are allowable for short periods. Higher temperatures are possible, provided that the limit is safeguarded by suitable measures (e.g. water tube trap, see Accessories for Pressure Switches / Transmitters) Ambient temperature: -15...60C Ambient temp. limit: at temperatures below 0 oC, ensure that no water condensation can arise in the sensor and in the switching device Switch function/capacity: SPDT Microswitch 250 Vac; capacity 2 A inductive, 3 A resistive Certificates: NG-4346 AP 1011 according DIN EN 1854 CE-0085 AQ 1088 according EU/2009/142/EG (30.11.2009) and DIN EN 1854 (01.07.2006) PTB 02 ATEX 1121 according Directive 94/9 EC SIL2 according IEC 61508 Max. pressure: 5bar