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Pressure monitor for hot water, steam, gas, fuel (DWR)

Pressure monitor for hot water, steam, gas, fuel (DWR)
For overpressure monitoring of steam, hot water, burnable gases, liquid fuels.
Kind of pressure overpressure, relative
Pressure connection internal thread G1/4, external thread G1/2
Electrical connection Plug DIN 43650
Protection class IP54
Housing material rugged housing of seawater resistant aluminium die casting GD Al Si 12
Sensing element material 1.4104 + 1.4571
Media temp. -25 ... 70 oC
Media temp. limit temperatures up to 85 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 -25 ... 70 oC
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 5 A inductive, 8 A resistive
Mechanical lock/reset with special function possible
Optional functions add the type numbers below to the listed type numbers for extra functionality as described
-213: gold-plated contacts, switching capacity: max. 24 Vdc, 100 mA, min. 5 Vdc, 2 mA. And others not available with adjustable switching difference.
-301: terminal connection housing, IP65
-513: Gold-plated contacts, single-pole switch-over. Switching differential permanent. IP65. Switching capacity: max. 24 Vdc, 100 mA, min. 5 Vdc, 2 mA, suitable isolating switching amplifier, degree of protection EEx-i
-574: Normally closed contact with resistance combination for minimum pressure monitoring. Gold-plated contacts. Housing with surface protection (chemical version), IP65
-575: Normally closed contact with reclosing lock-out resistance combination for minimum pressure monitoring. Housing with surface protection (chemical version), IP65
-576: Normally closed contact with resistance combination for maximum pressure monitoring. Gold-plated contacts. Housing with surface protection (chemical version), IP65
-577: Normally closed contact with reclosing lock-out and resistance combination for maximum pressure monitoring. Housing with surface protection (chemical version), IP65
Certificates
ID 0000007042 according VdTUEV Memorandum Pressure 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
CE0035BN004 according Directive 97/23/EC (Module B + D)
SIL2 according IEC 61508
applcertmarkdinge23
applcertmarkdvgwge23
applcertmarktuvge51
applcertmarksilge51
Fixed pressure hysteresis
Pressure adjustment rangeAdjustable switching differentialSwitching differentialMax. pressureAllowable max. gas-pressure (DIN3398P3)Type
barbarbarbarbar 
0.1 ... 0.60.0466DWR06  PDF
0.2 ... 1.60.0666DWR1  PDF
0.2 ... 2.50.11610DWR3  PDF
0.5 ... 60.21610DWR6  PDF
0.5 ... 60.252520DWR625  PDF
3 ... 160.52520DWR16  PDF
4 ... 2516350DWR25  PDF
8 ... 401.36350DWR40  PDF
Adjustable pressure hysteresis
Pressure adjustment rangeAdjustable switching differentialSwitching differentialMax. pressureAllowable max. gas-pressure (DIN3398P3)Type
barbarbarbarbar 
0.1 ... 0.60.08 ... 0.566DWR06-203  PDF
0.2 ... 1.60.15 ... 0.666DWR1-203  PDF
0.2 ... 2.50.17 ... 1.21610DWR3-203  PDF
0.5 ... 60.3 ... 1.41610DWR6-203  PDF
0.5 ... 60.4 ... 2.52520DWR625-203  PDF
3 ... 160.75 ... 3.152520DWR16-203  PDF
4 ... 251.3 ... 66350DWR25-203  PDF
8 ... 402.3 ... 6.66350DWR40-203  PDF
DescriptionAdditional Product Type
Syphon for high temperature, steel, U-shape (for more accessories, see Accessories for Pressure Switches / Transmitters)U430B