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Dwyer 2005D Magnehelic Differential Pressure Gauge

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Dwyer 2005D Magnehelic Differential Pressure Gauge

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MOQ : 12 Pieces

Dwyer 2005D Magnehelic Differential Pressure Gauge Specification

Display
Analog Dial

Bourdon Tube
Not Applicable (Diaphragm Mechanism)

Thread
1/8 NPT Female

Seal Material
Buna-N Rubber

Sensor Type
Mechanical (Diaphragm) Differential Pressure

Grade
Industrial

Outer Size
4 inches (approx.)

Material
Die-cast Aluminum Case, Acrylic Lens, Buna-N Diaphragm

Dial Material
Acrylic

Pointer Material
Precision Balanced Aluminum

Processing Type
Precision Calibrated

Diameter
115 mm (4.5 inch nominal dial)

Glass Size
Approximated to 4 inches

Mount Type
Surface or Flush Mounting

Scale Range
0-0.5 inches w.c. (Water Column)

Accuracy
2% of Full Scale

Finishing
Textured Black Finish

Measure Pressure Of
Air and Non-corrosive Gases

Accessories
2 Pressure Taps, Mounting Screws, Instruction Sheet

Dwyer 2005D Magnehelic Differential Pressure Gauge Trade Information

Minimum Order Quantity
12 Pieces

Payment Terms
Cash on Delivery (COD), Telegraphic Transfer (T/T), Paypal, Cash Against Delivery (CAD), Cash in Advance (CID), Cheque, Cash Advance (CA)

Sample Policy
Sample costs shipping and taxes has to be paid by the buyer

Main Export Market(s)
Asia, Australia, Eastern Europe, Middle East, Central America, Africa, South America, Western Europe, North America

Main Domestic Market
All India

About Dwyer 2005D Magnehelic Differential Pressure Gauge

Dwyer 2005D Magnehelic Differential Pressure Gauge

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.

Product Highlights

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.

Range 0-5.0 in H2O
0-1.25 kPa

Versatile Performance for Air and Gas Monitoring

The Dwyer 2005D Magnehelic Gauge is designed for use across a range of industries, including HVAC, pharmaceuticals, and clean room monitoring. Its mechanical diaphragm sensor enables accurate measurement of differential air pressure within a scale range of 0-0.5 inches w.c. This industrial-grade instrument ensures reliable performance and meets RoHS compliance standards, ensuring safety and sustainability.

Robust Build and Flexible Installation

Constructed from die-cast aluminum with a textured black finish, the 2005D is engineered to endure demanding environments. Its IP54 rating provides dust and splash resistance, while dual connection locations (side and back) allow seamless integration into surface or flush mounting setups. The external zero adjustment screw offers easy calibration for precise pressure measurement.

FAQs of Dwyer 2005D Magnehelic Differential Pressure Gauge:

Q: How do I install the Dwyer 2005D Magnehelic Differential Pressure Gauge?

A: The gauge can be installed using the provided mounting screws on either a surface or flush-mounted setup. Side and back 1/8 NPT female ports offer flexible piping connections. Review the included instruction sheet for detailed installation steps.

Q: What types of media can the 2005D Magnehelic Pressure Gauge measure?

A: This gauge is intended for measuring the differential pressure of air and non-corrosive gases only. It is not suitable for liquids or aggressive, corrosive gases.

Q: When should I use the external zero adjustment screw?

A: You should use the external zero adjustment screw to calibrate the gauge when the system is at zero pressure to ensure ongoing measurement accuracy. Periodic calibration is recommended, especially after installation or maintenance.

Q: Where is the Dwyer 2005D typically used?

A: The 2005D is commonly used in HVAC applications for monitoring air filter conditions, in laboratory or clean room environments to maintain air pressure differentials, and generally for any process that requires precise differential air pressure monitoring.

Q: What are the main benefits of using this Magnehelic Gauge?

A: Key benefits include accurate low differential pressure measurement (2% of full scale), robust durability from the die-cast aluminum case, IP54 dust and splash resistance, and straightforward installation and maintenance with clear analog display and external adjustments.

Q: How does the overpressure protection feature work?

A: The gauge is protected against accidental overpressure up to its maximum rated pressure of 15 psi. This helps prevent damage during pressure surges, enhancing the reliability and lifespan of the instrument.

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