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MAGNEHELIC® DIFFERENTIAL PRESSURE GAGES

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SERIES 2000

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SERIES 2000

ndicate Positive, Negative or Differential, Accurate within 1%

Select the SERIES 2000 Magnehelic® Gage for a versatile low differential

pressure gauge 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.

Note: May be used with Hydrogen. Order a Buna-N diaphragm. Pressures must be

less than 35 psi.

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.

Note : For applications with high cycle rate within gage total pressure rating, next higher rating

is recommended. See Options Page.

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. 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 which functions as a relief valve by unseating and venting the gage interior when over pressure reaches approximately 25 psig (1.7 bar). To provide a free path for pressure relief, there are four spacer pads which maintain 0.023" clearance when gage is surface mounted. Do not obstruct the gap created by these pads. The blowout plug is not used on models above 180" of water pressure, medium or high pressure models, or on gages which require an elastomer other than silicone for the diaphragm. The blowout plug should not be used as a system overpressure control. High supply pressures may still cause the gage to fail due to over pressurization, resulting in property damage or serious injury. Good engineering practices should be utilized to prevent your 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 spring rotates helix without mechanical linkages

Options

ASF Adjustable Signal Flag
HP High Pressure Option
LT Low Temperatures to -20°F
MP Med. Pressure Option
SP Setpoint Indicator
Scale Overlays Red, Green, Yellow, Mirrored or Combination, Specify Locations
Mounting and Orientation
A single case size is used for most models of Magnehelic® gages. They can be flush or surface mounted with standard hardware supplied. Standard gages are calibrated in the vertical position, and should be used in that position for maximum stated accuracy. Ranges above 17.5 in w.c. may be used at any angle, and should stay within specified accuracy, by simply re-zeroing. Ranges below 17.5 in w.c. should be ordered using the –TA tilt angle option with the angle specified. These characteristics make Magnehelic® gages ideal for both stationary and portable applications. A 4-9/16" hole is required for flush panel mounting. Complete mounting and connection fittings, plus instructions, are furnished with each instrument.
AHU1 Furnished with attached surface mounting plate
AHU2 Furnished with attached surface mounting plate and including A-481 installer kit (2 plastic static pressure tips and 7´of PVC tubing)
CB Chrome bezel option: A chrome plated aluminum bezel for an aesthetically pleasing finish when mounting on metal surfaces such as control panels.
FC Factory calibration certificate
NIST NIST traceable calibration certificate
SB Stainless steel bezel option: 304 stainless steel electro polished Ra 16 finished bezel
SS Corrosion resistant brushed 304 stainless steel bezel

Models & Ordering

Model	Description
2000-0	Differential pressure gage, range 0-0.50" w.c., minor divisions .01, calibrated for vertical scale position.
2000-0-SP	Differential pressure gage, range 0-0.50" w.c., with set point indicator.
2000-00	Differential pressure gage, range 0-0.25" w.c., minor divisions .005, calibrated for vertical scale position.
2000-00AV	Differential pressure gage, range 0-0.25" w.c., velocity 300-2000 FPM, calibrated for vertical scale position.
2000-00N	Differential pressure gage, range .05-0-.2" w.c., minor divisions .005, 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.
2000-0D	Differential pressure gage, range 0-0.5" w.c. & 0-125 Pa.
2000-1.5KPA	Differential pressure gage, range 0-1.5 kPa, minor divisions .05.
2000-100CM	Differential pressure gage, range 0-100 cm w.c., minor divisions 2.0.
2000-100MM	Differential pressure gage, range 0-100 mm w.c., minor divisions 2.0.
2000-100PA	Differential pressure gage, range 0-100 Pa, minor divisions 2.0, calibrated for vertical scale position.
2000-10KPA	Differential pressure gage, range 0-10 kPa, minor divisions .20.
2000-10MM	Differential pressure gage, range 0-10 mm w.c., minor divisions .20, calibrated for vertical scale position.
2000-125PA	Differential pressure gage, range 0-125 Pa, minor divisions 5.0, calibrated for vertical scale position.
2000-150CM	Differential pressure gage, range 0-150 cm w.c., minor divisions 5.0.
2000-150MM	Differential pressure gage, range 0-150 mm w.c.
2000-15CM	Differential pressure gage, range 0-15 cm w.c., minor divisions .50.
2000-15KPA	Differential pressure gage, range 0-15 kPa, minor divisions .50.
2000-15MM	Differential pressure gage, range 0-15 mm w.c.
2000-1KPA	Differential pressure gage, range 0-1 kPa, minor divisions .02.
2000-200CM	Differential pressure gage, range 0-200 cm w.c., minor divisions 5.0.
2000-200MM	Differential pressure gage, range 0-200 mm w.c.
2000-20CM	Differential pressure gage, range 0-20 cm w.c., minor divisions .50.
2000-20KPA	Differential pressure gage, range 0-20 kPa, minor divisions .50.
2000-250CM	Differential pressure gage, range 0-250 cm w.c., minor divisions 5.0.
2000-250MM	Differential pressure gage, range 0-250 mm w.c.
2000-250PA	Differential pressure gage, range 0-250 Pa, minor divisions 5.0.
2000-25CM	Differential pressure gage, range 0-25 cm w.c., minor divisions .50.
2000-25KPA	Differential pressure gage, range 0-25 kPa, minor divisions .50.
2000-25MM	Differential pressure gage, range 0-25 mm w.c., minor divisions .50.
2000-2KPA	Differential pressure gage, range 0-2 kPa, minor divisions .05.
2000-300CM	Differential pressure gage, range 0-300 cm w.c., minor divisions 10.0.
2000-300MM	Differential pressure gage, range 0-300 mm w.c.
2000-300PA	Differential pressure gage, range 0-300 Pa, minor divisions 10.0.
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.
2000-500PA	Differential pressure gage, range 0-500 Pa, minor divisions 10.0.
2000-50CM	Differential pressure gage, range 0-50 cm w.c., minor divisions 1.0.
2000-50MM	Differential pressure gage, range 0-50 mm w.c., minor divisions 1.0.
2000-5KPA	Differential pressure gage, range 0-5 kPa, minor divisions .10.
2000-60PA	Differential pressure gage, range 0-60 Pa, minor divisions 2.0, calibrated for vertical scale position.
2000-6MM	Differential pressure gage, range 0-6 mm w.c., minor divisions .20, calibrated for vertical scale position.
2000-750PA	Differential pressure gage, range 0-750 Pa, minor divisions 25.0.
2000-80CM	Differential pressure gage, range 0-80 cm w.c., minor divisions 2.0.
2000-80MM	Differential pressure gage, range 0-80 mm w.c., minor divisions 2.0.
2000-8KPA	Differential pressure gage, range 0-8 kPa, minor divisions .20.
2001	Differential pressure gage, range 0-1.0" w.c., minor divisions .02.
2001-SP	Differential pressure gage, range 0-1" w.c., with set point indicator.
2001AV	Differential pressure gage, range 0-1.0" w.c., velocity 500-4000 FPM.
2001D	Differential pressure gage, range 0-1.0" w.c. & 0-250 Pa.
2002	Differential pressure gage, range 0-2.0" w.c., minor divisions .05.
2002-SP	Differential pressure gage, range 0-2" w.c., with set point indicator.
2002AV	Differential pressure gage, range 0-2.0" w.c., velocity 1000-5600 FPM.
2002D	Differential pressure gage, range 0-2.0" w.c. & 0-500 Pa.
2003	Differential pressure gage, range 0-3.0" w.c., minor divisions .10.
2003D	Differential pressure gage, range 0-3.0" w.c. & 0-750 Pa.
2004	Differential pressure gage, range 0-4.0" w.c., minor divisions .10.
2004D	Differential pressure gage, range 0-4.0" w.c. & 0-1.0 kPa.
2005	Differential pressure gage, range 0-5.0" w.c., minor divisions .10.
2005-SP	Differential pressure gage, range 0-5" w.c., with set point indicator.
2006	Differential pressure gage, range 0-6.0" w.c., minor divisions .20.
2006D	Differential pressure gage, range 0-6.0" w.c. & 0-1.5 kPa.
2008	Differential pressure gage, range 0-8.0" w.c., minor divisions .20.
2008D	Differential pressure gage, range 0-8.0" w.c. & 0-2.0 kPa.
2010	Differential pressure gage, range 0-10" w.c., minor divisions .20.
2010-SP	Differential pressure gage, range 0-10" w.c., with set point indicator.
2010AV	Differential pressure gage, range 0-10" w.c., velocity 2000-12500 FPM.
2010D	Differential pressure gage, range 0-10" w.c. & 0-2.5 kPa.
2015	Differential pressure gage, range 0-15" w.c., minor divisions .50.
2015D	Differential pressure gage, range 0-15" w.c. & 0-3.7 kPa.
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.
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.
2300-0	Differential pressure gage, range 0.25-0-0.25" w.c., minor divisions .01, calibrated for vertical scale position.
2300-100PA	Differential pressure gage, range 50-0-50 Pa, minor divisions 2.0, calibrated for vertical scale position.
2300-10CM	Differential pressure gage, range 5-0-5 cm w.c., minor divisions .20.
2300-120PA	Differential pressure gage, range 60-0-60 Pa, minor divisions 2.0.
2300-1KPA	Differential pressure gage, range 0.5-0-0.5 kPa, minor divisions .02.
2300-20MM	Differential pressure gage, range 10-0-10 mm w.c., minor divisions .50, calibrated for vertical scale position.
2300-250PA	Differential pressure gage, range 125-0-125 Pa, minor divisions 5.0.
2300-30CM	Differential pressure gage, range 15-0-15 cm w.c., minor divisions 1.0.
2300-3KPA	Differential pressure gage, range 1.5-0-1.5 kPa, minor divisions .10.
2300-4CM	Differential pressure gage, range 2-0-2 cm w.c., minor divisions .10.
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 2.0, 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.

MODEL CHART SERIES 2000 (CLICK HERE!)

CATALOG SERIES 2000 (CLICK HERE!)

Accessories SERIES 2000 (CLICK HERE!)

SERIES 2000 - Catalog

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