User guide

24-30
Pressure Switches, component-tested with ATEX Approval
http://products.ecc.emea.honeywell.com/europe
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For overpressure monitoring in ex-applications of steam, hot water, burnable gases, liquid fuels.
Degree of Ex-protection: Ex II 2 G D EEx de IIC T6 IP65 T80
o
C
Fixed pressure hysteresis
Pressure monitor (Ex) for hot water, steam, gas, fuel (Ex-DWR)
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 • ID 0000007042 according VdTUEV MemorandumPressure 100/1,
Issue 4.83
• NG-4347AQ1411 according to DIN 3398, Part 3, Issue 11.92
• 3C028/5 according to DIN 3398, Part 4, Issue 10.86
• ATEX-approval No. PTB 02 ATEX 1121
• CE0035BN0004 according Directive 97/23/EC (Module B + D)
• SIL2 according IEC 61508
Pressure adjustment range Switching differential Max. pressure Allowable max. gas-
pressure (DIN3398P3)
Type
bar bar bar bar
0,1 ... 0,6 0,04 6 6 EX-DWR06
0,2 ... 1,6 0,06 6 6 EX-DWR1
0,2 ... 2,5 0,1 16 10 EX-DWR3
0,5 ... 6 0,2 16 10 EX-DWR6
0,5 ... 6 0,25 25 20 EX-DWR625
3 ... 16 0,5 25 20 EX-DWR16
4 ... 25 1 63 50 EX-DWR25
8 ... 40 1,3 63 50 EX-DWR40
Syphon for high temperature, steel, U-shape (for more accessories, see Accessories
for Pressure Switches / Transmitters)
U430B