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 Dwyer
Magnehelic
Select the Magnehelic gage for high accuracy--guaranteed within
2% of full scale--and for the wide choice of 81 models available
to suit your needs precisely. Using Dwyer’s simple, frictionless
Magnehelic gage movement, it quickly indicates low air or non-corrosive
gas pressures--either positive, negative (vacuum) or differential.
The design resists shock, vibration and over-pressures. No manometer
fluid to evaporate, freeze or cause toxic or leveling problems.
The Magnehelic is the industry standard to measure:
fan and blower pressures
filter resistance
air velocity
furnace draft
pressure drop across orifice plates
liquid levels with bubbler systems
pressures in fluid amplifier or fluidic systems
The Magnehelic also checks gas-air ratio controls and automatic
valves, and monitors blood and respiratory pressures in medical
care equipment.
Specifications Magnehelic
| usage |
air and noncombustibles gasses (natural gass
option available) |
| housing |
die cast aluminium case and bezel, with acrylic cover
exterior finish is coated gray to withstand 168 hour salt
spray corrosion test |
| accuracy |
±2% of full scale (±3% on -0, -100 Pa, 10MM
and ±4% op -00, -60 Pa, -6MM ranges), throughout
range at 21,1°C |
| pressure ranges |
0..60/100/125/250/300/500/750 Pa, -30..30 Pa, -60..60
Pa, -125..125 Pa, -250..250 Pa |
| overpressure |
relief plug opens at approx. 1.72 kPa, standard gages
only |
| temperature range |
-6,67 tot 60°C |
| dimensions |
101,6 mm (4”) diameter display |
| mounting |
Diaphragm in vertical position. |
| weight |
MP: 510 gr, HP: 963 gr |
| Applications |
| Factory standard for calibration of pressure measurement
instruments |
| Precise and reliable measurement of extremely small pressure
differences |
| Continuous display of (extremely small) pressure differences |
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Dwyer Magnehelic (691kB)