Alerton Pressure monitor (Ex) for hot water, steam, gas, fuel (Ex-DWR) For overpressure monitoring in ex-applications of steam, hot water, burnable gases, liquid fuels. Degree of Ex-protection: CE 0035 Ex II 2 G Ex db eb IIC T6 and CE 0035 Ex II 2D Ex tb IIIC IP65 T 85oC 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: ID 0000007042 according VdTUEV Memorandum Pressure 100, Issue 7.2006 and DIN EN 12952-11 and DIN EN 12953-9:2007 TV.DWFS (SDBFS).12-281 according VdTUEV Memorandum Pressure 100, Issue 7.2006 and DIN EN 12952-11 and DIN EN 12953-9:2007 ID 0000035004 according DIN EN 764-7:2002 and DIN EN 13611:2008 CE-0085CL0343 according to DIN EN 1854, Issue 07.2006 01 202 931-B-11-0003 according Directive 97/23 EC ATEX-approval No. PTB 02 ATEX 1121 SIL2 according IEC 61508