Description

Series 2000 Magnehelic® Differential Pressure Gages

Indicate Positive, Negative or Differential, Accurate within 1%

 

DWYER Series 2000 Magnehelic Differential Pressure 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 DWYER Series 2000 Magnehelic Differential Pressure Gage 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.

 

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
• No Power Required
• Low Cost
• Used in Isolation/ Hospital Environments and Temporary Units (no power required)

 

Features

• Easy to read gage through undistorted plastic face permits viewing from far away
• Patented design provides quick response to pressure changes means no delay in assessing critical situations
• Durable and rugged housing and high-quality components combine to provide longservice life 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.
• 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.
• 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.
• O-ring seal for cover assures pressure integrity of case.
• Samarium Cobalt magnet mounted at one end of range spring rotates helix without mechanical linkages.

 

Specifications

• 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.

 

Models & Ordering

Range – Inches of Water

Model	Description
2000-0	Differential pressure gage, range 0-0.50″ w.c., minor divisions .01, calibrated for vertical scale position.
2000-00	Differential pressure gage, range 0-0.25″ w.c., minor divisions .005, calibrated for vertical scale position.
2000-00N	Differential pressure gage, range .05-0-.2″ w.c., minor divisions .005, calibrated for vertical scale position.
2001	Differential pressure gage, range 0-1.0″ w.c., minor divisions .02.
2002	Differential pressure gage, range 0-2.0″ w.c., minor divisions .05.
2003	Differential pressure gage, range 0-3.0″ w.c., minor divisions .10.
2004	Differential pressure gage, range 0-4.0″ w.c., minor divisions .10.
2005	Differential pressure gage, range 0-5.0″ w.c., minor divisions .10.
2006	Differential pressure gage, range 0-6.0″ w.c., minor divisions .20.
2008	Differential pressure gage, range 0-8.0″ w.c., minor divisions .20.
2010	Differential pressure gage, range 0-10″ w.c., minor divisions .20.
2015	Differential pressure gage, range 0-15″ w.c., minor divisions .50.
2020	Differential pressure gage, range 0-20″ w.c., minor divisions .50.
2025	Differential pressure gage, range 0-25″ w.c., minor divisions .50.
2030	Differential pressure gage, range 0-30″ w.c., minor divisions 1.0.
2040	Differential pressure gage, range 0-40″ w.c., minor divisions 1.0.
2050	Differential pressure gage, range 0-50″ w.c., minor divisions 1.0.
2060	Differential pressure gage, range 0-60″ w.c., minor divisions 2.0.
2080	Differential pressure gage, range 0-80″ w.c., minor divisions 2.0.
2100	Differential pressure gage, range 0-100″ w.c., minor divisions 2.0.
2150	Differential pressure gage, range 0-150″ w.c., minor divisions 5.0.

 

Range – Inches of Water – Zero Center

Model	Description
2300-0	Differential pressure gage, range 0.25-0-0.25″ w.c., minor divisions .01, calibrated for vertical scale position.
2301	Differential pressure gage, range 0.5-0-0.5″ w.c., minor divisions .02.
2302	Differential pressure gage, range 1-0-1″ w.c., minor divisions .05.
2304	Differential pressure gage, range 2-0-2″ w.c., minor divisions .10.
2310	Differential pressure gage, range 5-0-5″ w.c., minor divisions .20.
2320	Differential pressure gage, range 10-0-10″ w.c., minor divisions .50.
2330	Differential pressure gage, range 15-0-15″ w.c., minor divisions 1.0.

 

Range – PSI

Model	Description
2201	Differential pressure gage, range 0-1 psi, minor divisions .02.
2202	Differential pressure gage, range 0-2 psi, minor divisions .05.
2203	Differential pressure gage, range 0-3 psi, minor divisions .10.
2204	Differential pressure gage, range 0-4 psi, minor divisions .10.
2205	Differential pressure gage, range 0-5 psi, minor divisions .10.
2210	Differential pressure gage, range 0-10 psi, minor divisions .20, MP option standard.
2215	Differential pressure gage, range 0-15 psi, minor divisions .50, MP option standard.
2220	Differential pressure gage, range 0-20 psi, minor divisions .50, MP option standard.
2230	Differential pressure gage, range 0-30 psi, minor divisions 1.0, HP option standard.

 

Dual Scale Air Velocity Units (w.c./Velocity ft/min)

Model	Description
2000-00AV	Differential pressure gage, range 0-0.25″ w.c., velocity 300-2000 FPM, calibrated for vertical scale position.
2000-0AV	Differential pressure gage, range 0-0.50″ w.c., velocity 500-2800 FPM, calibrated for vertical scale position.
2001AV	Differential pressure gage, range 0-1.0″ w.c., velocity 500-4000 FPM.
2002AV	Differential pressure gage, range 0-2.0″ w.c., velocity 1000-5600 FPM.
2010AV	Differential pressure gage, range 0-10″ w.c., velocity 2000-12500 FPM.

 

Range – MM of Water

Model	Description
2000-100MM	Differential pressure gage, range 0-100 mm w.c., minor divisions 2.0.
2000-10MM	Differential pressure gage, range 0-10 mm w.c., minor divisions .20, calibrated for vertical scale position.
2000-150MM	Differential pressure gage, range 0-150 mm w.c.
2000-15MM	Differential pressure gage, range 0-15 mm w.c.
2000-200MM	Differential pressure gage, range 0-200 mm w.c.
2000-250MM	Differential pressure gage, range 0-250 mm w.c.
2000-25MM	Differential pressure gage, range 0-25 mm w.c., minor divisions .50.
2000-300MM	Differential pressure gage, range 0-300 mm w.c.
2000-50MM	Differential pressure gage, range 0-50 mm w.c., minor divisions 1.0.
2000-6MM	Differential pressure gage, range 0-6 mm w.c., minor divisions .20, calibrated for vertical scale position.
2000-80MM	Differential pressure gage, range 0-80 mm w.c., minor divisions 2.0.

 

Range – MM of Water – Zero Center

Model	Description
2300-20MM	Differential pressure gage, range 10-0-10 mm w.c., minor divisions .50, calibrated for vertical scale position.

 

Range – CM of Water

Model	Description
2000-100CM	Differential pressure gage, range 0-100 cm w.c., minor divisions 2.0.
2000-150CM	Differential pressure gage, range 0-150 cm w.c., minor divisions 5.0.
2000-15CM	Differential pressure gage, range 0-15 cm w.c., minor divisions .50.
2000-200CM	Differential pressure gage, range 0-200 cm w.c., minor divisions 5.0.
2000-20CM	Differential pressure gage, range 0-20 cm w.c., minor divisions .50.
2000-250CM	Differential pressure gage, range 0-250 cm w.c., minor divisions 5.0.
2000-25CM	Differential pressure gage, range 0-25 cm w.c., minor divisions .50.
2000-300CM	Differential pressure gage, range 0-300 cm w.c., minor divisions 10.0.
2000-50CM	Differential pressure gage, range 0-50 cm w.c., minor divisions 1.0.
2000-80CM	Differential pressure gage, range 0-80 cm w.c., minor divisions 2.0.

 

Range CM of Water – Zero Center

Model	Description
2300-10CM	Differential pressure gage, range 5-0-5 cm w.c., minor divisions .20.
2300-30CM	Differential pressure gage, range 15-0-15 cm w.c., minor divisions 1.0.
2300-4CM	Differential pressure gage, range 2-0-2 cm w.c., minor divisions .10.

 

Range – Pascals

Model	Description
2000-100PA	Differential pressure gage, range 0-100 Pa, minor divisions 2.0, calibrated for vertical scale position.
2000-125PA	Differential pressure gage, range 0-125 Pa, minor divisions 5.0, calibrated for vertical scale position.
2000-250PA	Differential pressure gage, range 0-250 Pa, minor divisions 5.0.
2000-300PA	Differential pressure gage, range 0-300 Pa, minor divisions 10.0.
2000-30PA	Differential pressure gage, range 0-30 Pa, minor divisions 1.0, calibrated for vertical scale position.
2000-500PA	Differential pressure gage, range 0-500 Pa, minor divisions 10.0.
2000-60PA	Differential pressure gage, range 0-60 Pa, minor divisions 1.0, calibrated for vertical scale position.
2000-750PA	Differential pressure gage, range 0-750 Pa, minor divisions 25.0.

 

Range – Pascals – Zero Center

Model	Description
2300-100PA	Differential pressure gage, range 50-0-50 Pa, minor divisions 2.0, calibrated for vertical scale position.
2300-120PA	Differential pressure gage, range 60-0-60 Pa, minor divisions 2.0.
2300-250PA	Differential pressure gage, range 125-0-125 Pa, minor divisions 5.0.
2300-500PA	Differential pressure gage, range 250-0-250 Pa, minor divisions 10.0.
2300-60PA	Differential pressure gage, range 30-0-30 Pa, minor divisions 1.0, calibrated for vertical scale position.

 

Range – Kilopascals

Model	Description
2000-1.5KPA	Differential pressure gage, range 0-1.5 kPa, minor divisions .05.
2000-10KPA	Differential pressure gage, range 0-10 kPa, minor divisions .20.
2000-15KPA	Differential pressure gage, range 0-15 kPa, minor divisions .50.
2000-1KPA	Differential pressure gage, range 0-1 kPa, minor divisions .02.
2000-20KPA	Differential pressure gage, range 0-20 kPa, minor divisions .50.
2000-25KPA	Differential pressure gage, range 0-25 kPa, minor divisions .50.
2000-2KPA	Differential pressure gage, range 0-2 kPa, minor divisions .05.
2000-30KPA	Differential pressure gage, range 0-30 kPa, minor divisions 1.0.
2000-3KPA	Differential pressure gage, range 0-3 kPa, minor divisions .10.
2000-4KPA	Differential pressure gage, range 0-4 kPa, minor divisions .10.
2000-5KPA	Differential pressure gage, range 0-5 kPa, minor divisions .10.
2000-8KPA	Differential pressure gage, range 0-8 kPa, minor divisions .20.

 

Range – Kilopascals – Zero Center

Model	Description
2300-1KPA	Differential pressure gage, range 0.5-0-0.5 kPa, minor divisions .02.
2300-3KPA	Differential pressure gage, range 1.5-0-1.5 kPa, minor divisions .10.

 

Dual Scale – English/Metric

Model	Description
2000-0D	Differential pressure gage, range 0-0.5″ w.c. & 0-125 Pa.
2001D	Differential pressure gage, range 0-1.0″ w.c. & 0-250 Pa.
2002D	Differential pressure gage, range 0-2.0″ w.c. & 0-500 Pa.
2003D	Differential pressure gage, range 0-3.0″ w.c. & 0-750 Pa.
2004D	Differential pressure gage, range 0-4.0″ w.c. & 0-1.0 kPa.
2006D	Differential pressure gage, range 0-6.0″ w.c. & 0-1.5 kPa.
2008D	Differential pressure gage, range 0-8.0″ w.c. & 0-2.0 kPa.
2010D	Differential pressure gage, range 0-10″ w.c. & 0-2.5 kPa.
2015D	Differential pressure gage, range 0-15″ w.c. & 0-3.7 kPa.

 

2000-SP Set Point Indicator

Model	Description
2000-0-SP	Differential pressure gage, range 0-0.50″ w.c., with set point indicator.
2001-SP	Differential pressure gage, range 0-1″ w.c., with set point indicator.
2002-SP	Differential pressure gage, range 0-2″ w.c., with set point indicator.
2005-SP	Differential pressure gage, range 0-5″ w.c., with set point indicator.
2010-SP	Differential pressure gage, range 0-10″ w.c., with set point indicator.