Dwyer Series Water Differential Pressure Gauge 10inches High Accuracy

Original USA Dwyer Series-2000 Magnehelic Differential Pressure Gauge Dwyer 2010 0-10inches Of Water High Accuracy Magnehelic Gage

Product Description

Indicate Positive, Negative or Differential, Accurate within 2%

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. It’s inexpensive, too.

The Magnehelic® gage 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 and pressures in fluid amplifier or fluidic systems. It also checks gas-air ratio controls and automatic valves, and monitors blood and respiratory pressures in medical care equipment.

Note: May be used with Hydrogen. Order a Buna-N diaphragm. Pressures must be less than 35 psi.

Please see SERIES AT22000 for ATEX approved.

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

Models

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% of FS (±3% on -0, -100PA, -125PA, -10MM and ±4% 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).

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).

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:

RoHS. (Note: -SP models not RoHS approved.)

 

 

 

†For applications with high cycle rate within gage total pressure rating, next higher rating is recommended. See Options Page.

 

*Low temperature models available as special option.

Features

• 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 or 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.
• 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 long-service life and minimized down-time

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
  A single case size is used for most models of Magnehelic® gages. They can be flush
  or surface mounted with standard hardware supplied. Although calibrated for vertical
  position, many ranges above 1″ may be used at any angle by simply re-zeroing.
  However, for maximum accuracy, they must be calibrated in the same position in
  which they are used. 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.

Apps

Air Velocity and Flow Calculator