2000 Series Magnehelic Differential Pressure Gauge - Dwyer
Specifications |
0 – 30Pa | 0 – 400Pa | 0 – 2.5KPa | 0 – 30KPa |
0 – 60Pa | 0 – 500Pa | 0 – 3.0KPa | -15~0~15Pa |
0 – 100Pa | 0 – 600Pa | 0 – 5.0KPa | -30~0~30Pa |
0 – 125Pa | 0 – 750Pa | 0 – 8.0KPa | -60~0~60Pa |
0 – 200Pa | 0 – 800Pa | 0 – 10KPa | -125~0~125Pa |
0 – 250Pa | 0 – 1KPa | 0 – 15KPa | -250~0~250Pa |
0 – 300Pa | 0 – 2KPa | 0 – 25KPa | -500~0~500Pa |
customizable | -1~0~1KPa | -3~0~3KPa | -5~0~5KPa |
-2~0~2KPa | -4~0~4KPa | -10~0~10KPa |

The 2000 Series Magnehelic® differential pressure gauges are available in 81 ranges with 2% accuracy. It adopts a wear-free movement with a simple and reliable structure, which can quickly and sensitively indicate the small positive pressure, negative pressure or differential pressure of the gas. It also has the functions of shockproof and overpressure protection. Magnehelic® differential pressure gauges are economical in price and easy to use, avoiding the problems of liquid evaporation, freezing and the need for horizontal correction of liquid differential pressure gauges during measurement.

2000 series Magnehelic® differential pressure gauges are widely used in monitoring fan outlet static pressure, filter resistance, measuring wind speed, ventilation status, measuring differential pressure on both sides of orifice plate, and also used in blowing liquid level measurement systems to monitor liquid level, monitor Gas, air mixing control ratio, monitoring in medical equipment and devices, and breathing pressure etc.
Note: It can be used for hydrogen, but the Buna-N nitrile rubber diaphragm must be selected when ordering, and the working pressure is 35psi.


Service: Air and non-combustible, compatible gases. (Natural Gas option available.)
Weight: 1 lb 2 oz (510 g); MP & HP 2 lb 2 oz (963 g)
Housing: Die cast aluminum case and bezel, with acrylic cover, Exterior finish is coated gray to withstand 168 hour salt spray corrosion test.
Pressure Limits: -20 in Hg. to 15 psig.† (-0.677 bar to 1.034 bar); MP option; 35 psig (2.41 bar), HP option; 80 psig (5.52 bar).
Overpressure: Relief plug opens at approximately 25 psig (1.72 bar), standard gages only. See Overpressure Protection note on Catalog page.
Temperature Limits: 20 to 140°F (-6.67 to 60°C). -20°F (-28°C) with low temperature option.
Mounting Orientation: Diaphragm in vertical position. Consult factory for other position orientations.
Process Connections: 1/8" female NPT duplicate high and low pressure taps - one pair side and one pair back.
Weight: 1 lb 2 oz (510 g); MP & HP 2 lb 2 oz (963 g).
Standard Accessories: Two 1/8" NPT plugs for duplicate pressure taps, two 1/8" pipe thread to rubber tubing adapters and three flush mounting adapterswith screws. (Mounting and snap ring retainer substituted for three adapters in MP & HP gage accessories.)
Note: For applications with high cycle rate within gage total pressure rating, next higher rating is recommended. See Options Page.
Agency Approval: Meets the technical requirements of EU Directive 2011/65/EU (RoHS II). Note: -SP models not RoHS approved.
Accuracy: ±2% of FS (±3% on -0, -100PA, -125PA, -10MM and ±4% on -00, -60PA, -6MM ranges), throughout range at 70°F (21.1°C).
Note: May be used with hydrogen. Order a Buna-N diaphragm. Pressures must be less than 35 psi.
Size: 4" (101.6 mm) diameter dial face