KROM SCHRODER DG150VC4-6WG gas/air pressure switch

TECHNICAL INFORMATION
• Monitoring of gas and air pressures (positive, negative and differential
pressures)
• EC type-tested and certified pursuant to EN 1854 and class “S”
• UL listed, FM and AGA approved
• Certified pursuant to GOST-TR
• Certified for systems up to SIL 3 and PL e
• Pressure switch with internal lock and manual reset
• Suitable for biologically produced methane (can be used on pipes with Zone
2 explosive atmospheres without isolating amplifier)
• Can be used in Zone 1 and 2 hazardous areas with an approved isolating
amplifier
• RoHS 2002/95/EC
• Special version available for NH3 and O2

APPLICATION
The gas pressure switch DG monitors extremely low pressure
differentials and triggers switch-on, switch-off or switch-over
operations if a set switching point is reached. The switching
point is adjustable via a hand wheel.
It monitors positive and negative gas pressures on various
industrial gas and air appliances, such as boiler fan monitoring
and differential pressure monitoring in firing, ventilation
and air-conditioning systems.
The TÜV-tested special-design pressure switch is used as
defined by VdTÜV Code of Practice “Druck 100/1” (Pressure
100/1) in firing installations for steam and hot-water generators
in accordance with TRD 604, Para. 3.6.4, as well as class “S”
for DG..B, DG..U and DG..I pursuant to EN 1854.