User guide
24-15
Pressure Switches, component tested
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Pressure Switches, component tested
For overpressure monitoring of fuel gases.
Fixed pressure hysteresis
Pressure monitor for fuel gases (DGM)
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
Media temp. -25 ... 60
o
C
Media temp. limit temperatures up to 85
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 -25 ... 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 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 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 • 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)
• SIL2 according IEC 61508
Pressure adjustment range Switching differential Max. pressure Sensing element material
Type
bar mbar bar
0,015 ... 0,06 6 0,8 Copper + Brass
DGM306A
0,02 ... 0,1 7 0,8 Copper + Brass
DGM310A
0,04 ... 0,25 10 0,8 Copper + Brass
DGM325A
0,1 ... 0,6 25 2 Copper + Brass
DGM06A
0,2 ... 1,6 40 3 Copper + Brass
DGM1A
0,015 ... 0,06 8 5 1.4104 + 1.4571
DGM506
0,04 ... 0,16 12 5 1.4104 + 1.4571
DGM516
0,1 ... 0,25 20 5 1.4104 + 1.4571
DGM525
Syphon for high temperature, steel, U-shape (for more accessories, see Accessories
for Pressure Switches / Transmitters)
U430B