Product Description
Estimated Lead Time: 6-8 WeeksManufacturer: FEMAEX-DWR1FEMA Pressure monitor (Ex-d) for hot water, steam, gas, fuel (Ex-DWR)FEMA negative pressure switches detect the pressure difference relative to atmospheric pressure. All data relating to the switching pressure ranges and thus also the scale divisions on the switching devices are to be understood as the difference in pressure between the releant atmospheric pressure and the set switching pressure. The "zero" reference point on the scale of the unit corresponds to the relevant atmospheric pressure. Degree of Ex-protection: Ex II 2G Ex d e IIC T6 Gb, Ex II 1/2D Ex ta/tb IIIC T80 __ Da/DbFlame proof enclosure Switch components and other electrical functional units capable of igniting explosive gas mixtures are encapsulated in a housing which will survive theexplosive pressure of an internal explosion and the special design of which prevents the transference of this explosion to the ambient atmosphere.Kind of pressure: overpressure, relativePressure connection: internal thread G1/4, external thread G1/2Electrical connection: terminal connection M16x1,5Protection class: IP65Housing material: rugged housing of seawater resistant aluminium die casting GD Al Si 12Sensing element material: 1.4104 + 1.4571Media temp.: -20...60CMedia temp. limit: 60__. 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: -20...60CAmbient temp. limit: at temperatures below 0 __, ensure that no water condensation can arise in the sensor and in the switching deviceSwitch function/capacity: SPDT Microswitch 250 Vac; capacity 2 A inductive, 3 A resistiveCertificates: TV.DWFS (SDBFS).12-281 according VdTUEV Memorandum Pressure 100, Issue 7.2006 and DIN EN 12952-11 and DIN EN 12953-9:2007ID 0000035004 according DIN EN 764-7:2002 and DIN EN 13611:2008CE-0085CL0343 according to DIN EN 1854, Issue 07.200601 202 931-B-11-0003 according Directive 97/23 ECIBExU12ATEX1040 according ATEX 2014/34/EUIECEx IBE 14.0077SIL2 according IEC 61508-02Fixed pressure hysteresisPressure adjustment range: 0.2...1.6barSwitching differential: 0.06barMax. pressure: 6barShipping Weight : 2 Kg
