KROM SCHRODER DG150B-3 gas pressure switch

KROM SCHRODER DG150B-3 GAS PRESSURE SWICH

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.

NOTE:

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