User guide

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Pressure Switches, component-tested with ATEX Approval
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Pressure Switches, component-tested with ATEX Approval
For overpressure monitoring in Ex-applications of fuel gases. Degree of Ex-protection: Ex II 2 G D EEx
de IIC T6 IP65 T80
o
C.
Pressure monitor (Ex) for burnable gas (Ex-DGM)
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 ... 60
o
C
Media temp. limit temperatures up to 80
o
C 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 ... 60
o
C
Ambient temp. limit at temperatures below 0
o
C, 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 3398, Part 3 and 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 5 bar
Pressure adjustment range Switching differential Type
mbar mbar
15 ... 60 10 EX-DGM506
40 ... 160 12 EX-DGM516
100 ... 250 20 EX-DGM525
Syphon for high temperature, steel, U-shape (for more accessories, see Accessories
for Pressure Switches / Transmitters)
U430B