Product Description

DWAM1 Fema Maximum pressure monitor of ‘special construction’ (DA)

Maximum pressure monitor with selfmonitoring sensor
for steam and hot water
Kind of pressure: overpressure, relative
Pressure connection: internal thread G1/4, external thread G1/2
Electrical connection: Plug DIN EN 175301
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.: -20…70C
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: -20…70C
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
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 Ex-ia
-576: (only DWAM) Normally closed contact with resistance combination for maximum pressure monitoring. Gold-plated contacts. Housing with surface protection (chemical version), IP65, degree of protection Ex-ia
-577: (only DWAM) Normally closed contact with reclosing lock-out and resistance combination for maximum pressure monitoring. Housing with surface protection (chemical version), IP65, degree of protection Ex-ia
Certificates: TUEV-DW-04-132 for DWAM …according VdTUEV Memorandum Pressure 100, Issue 07.2006, DIN EN 12952-11, Issue 09.2007 and DIN EN 12953-9, Issue 09.2007
01 202 931-B-11-0001 according Directive 97/23 EC
SIL2 according IEC 61508-2

Fixed pressure hysteresis
Pressure adjustment range: 0,2…1,6bar
Adjustable switching differential: no
Switching differential: 0,05bar
Max. pressure: 5bar