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Differential pressure gage | range 30-0-30 Pa | minor divisions 1.0 | calibrated for vertical scale position.
Series 2000 Magnehelic® Differential Pressure Gages
Indicate Positive, Negative or Differential, Accurate within 1%
No Power Required
Low Cost
Used in Isolation/ Hospital Environments and Temporary Units (no power required)
Select the Series 2000 Magnehelic® Gage for a versatile low differential pressure gage with a wide choice of 81 models and 27 options to choose from. Using Dwyer’s simple, frictionless Magnehelic® gage movement, it quickly indicates air or noncorrosive gas pressures--either positive, negative (vacuum) or differential. The design resists shock, vibration, over-pressures and is weatherproof to IP67. Select the -HA High Accuracy Magnehelic® Gage option for an accuracy within 1% of full scale, located below in the Product Configurator. Also included with the –HA option at no extra cost are a mirrored scale overlay and a 6 point calibration certificate.
NIST CALIBRATION available in Product Configurator.
Note: May be used with Hydrogen. Order a Buna-N diaphragm. Pressures must be less than 35 psi.
California Residents: Click Here for Proposition 65 WARNING.
Product Applications
Filter Monitoring
Air Velocity with Dwyer Pitot Tube
Blower Vacuum Monitoring
Fan Pressure Indication
Duct, Room or Building Pressures
Clean Room Positive Pressure Indication
Easy to read gage through undistorted plastic face permits viewing from far away
Patented design provides quick response to pressure changes means no delay inassessing critical situations
Durable and rugged housing and high-quality components combine to provide longservicelife and minimized down-time
High accuracy option is twice as accurate as the standard Magnehelic® gage.
Bezel provides flange for flush mounting in panel.
Clear plastic face is highly resistant to breakage. Provides undistorted viewing of pointer and scale.
Precision litho-printed scale is accurate and easy to read.
Red tipped pointer of heat treated aluminum tubing is easy to see. It is rigidly mounted on the helix shaft.
Pointer stops of molded rubber prevent pointer over-travel without damage.
"Wishbone" assembly provides mounting for helix, helix bearings and pointer shaft.
Jeweled bearings are shock-resistant mounted; provide virtually friction-free motion for helix. Motion damped with high viscosity silicone fluid.
Zero adjustment screw is conveniently located in the plastic cover, and is accessible without removing the cover. O-ring seal provides pressure tightness.
Helix is precision made from an alloy of high magnetic permeability. Mounted in jeweled bearings, it turns freely, following the magnetic field to move the pointer across the scale.
Calibrated range spring is flat spring steel. Small amplitude of motion assures consistency and long life. It reacts to pressure on diaphragm. Live length adjustable for calibration.
Silicone rubber diaphragm with integrally molded O-ring is supported by front and rear plates. It is locked and sealed in position with a sealing plate and retaining ring. Diaphragm motion is restricted to prevent damage due to overpressures.
Die cast aluminum case is precision made and iridite-dipped to withstand 168 hour salt spray corrosion test. Exterior finished in baked dark gray hammerloid. One case size is used for all standard pressure options, and for both surface and flush mounting.
OVERPRESSURE PROTECTION Blowout plug is comprised of a rubber plug on the rear whichfunctions as a relief valve by unseating and venting the gageinterior when over pressure reaches approximately 25 psig (1.7bar). To provide a free path for pressure relief, there are fourspacer pads which maintain 0.023" clearance when gage issurface mounted. Do not obstruct the gap created by these pads.The blowout plug is not used on models above 180" of waterpressure, medium or high pressure models, or on gages whichrequire an elastomer other than silicone for the diaphragm.The blowout plug should not be used as a system overpressurecontrol. High supply pressures may still cause the gage to fail dueto over pressurization, resulting in property damage or seriousinjury. Good engineering practices should be utilized to preventyour system from exceeding the ratings of any component.
O-ring seal for cover assures pressure integrity of case.
Samarium Cobalt magnet mounted at one end of range springrotates helix without mechanical linkages.
Specifications
Series
2000 Magnehelic® Differential Pressure Gages
Category/Type
Pressure
Type
Differential Pressure
Series
2000 Magnehelic® Differential Pressure Gages
Service
Air and non-combustible; compatible gases (natural gas option available). Note: May be used with hydrogen. Order a Buna-N diaphragm. Pressures must be less than 35 psi.
Wetted Materials
Consult factory.
Housing
Die cast aluminum case and bezel; with acrylic cover; Exterior finish is coated gray to withstand 168 hour salt spray corrosion test.
Accuracy
±2% (-HA model ±1) of FS (±3% (-HA ±1.5%) on -0; -100PA; -125PA; -10MM and ±4% (-HA ±2%) on -00; -60PA; -6MM ranges); throughout range at 70°F (21.1°C).
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).
Enclosure Rating
IP67.
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.
Size
4" (101.6 mm) diameter dial face.
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.)
Agency Approval
Meets the technical requirements of EU Directive 2011/65/EU (RoHS II). Note: -SP models not RoHS approved.
Note: For applications with high cycle rate within gage total pressure rating; next higher rating is recommended. See Options Page.
Mengchuan Instrument Co., Ltd. is located in Liushi Town, Yueqing City, Wenzhou, Zhejiang Province, surrounded by the beautiful world natural and cultural heritage - Yandang Mountain! It is mainly engaged in 2000 differential pressure gauge, red oil differential pressure gauge, pressure differential... Mengchuan Instrument Co., Ltd. is located in Liushi Town, Yueqing City, Wenzhou, Zhejiang Province, surrounded by the beautiful world natural and cultural heritage - Yandang Mountain! It is mainly engaged in 2000 differential pressure gauge, red oil differential pressure gauge, pressure differential...
