DWYER – Series AT-2000 ATEX/IECEx Approved Magnehelic® Differential Pressure Gages

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Series AT-2000 ATEX/IECEx Approved Magnehelic® Differential Pressure Gages

Magnehelic® Gage in Flame-Proof ATEX/IECEx Enclosure

The Series AT-2000 ATEX/IECEx Approved Magnehelic® Differential Pressure Gages combines the popular Magnehelic® line with a flameproof enclosure to extend usage to hazardous locations. This gage can indicate positive, negative or differential pressures and is accurate within 2%.

Attention: Check local safety rules and warnings on unit and manual for a correct use of the instrument in hazardous areas.

Please see Series 2000 for non-ATEX/IECEx approved.

Product Applications

  • Fan and blower pressures
  • Filter resistance
  • Air velocity
  • Furnace draft
  • Liquid levels with bubbler systems
  • Pressure in fluid amplifier or fluidic systems



  • ATEX/IECEx housing provides all the capabilities and value of the Magnehelic® in a flame and explosion proof enclosure
  • Quick response to pressure changes means no delay in assessing critical situations
  • Durable and rugged housing and high-quality components combined provides longservice life and minimized down-time
  • High impact strength and high temperature rated for applications where hazardous environments exist
  • Increased response time at low pressures with LD port configuration



Service: Air and non-combustible, compatible gases.
Wetted Materials:  Consult factory.
Magnehelic® Housing: Die cast aluminum case & bezel with acrylic cover; Exterior finish is coated gray to withstand 168 hour salt spray corrosion test.
Housing Material: Aluminum.
Finishing: Texture epoxy coat RAL7015.
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: See pressure limit chart on catalog page.
Temperature Limits: 20 to 140°F (-6.67 to 60°C); Low temperature option: -20°F (-28.8°C) (Note: Product temperature limits are less than case limits).
Mounting Orientation: Diaphragm in vertical position.
Enclosure Rating: IP66.
Process Connections: 1/8″ NPT female brass (SS optional).
Weight: 10.5 lb (4.8 kg).
ATEX Certificate: EPT 19 ATEX 3192 X.
Agency Approvals: ATEX Compliant: CE 0477 EX II 2G Ex db IIC T5, T6 Gb -60°C ≤Ta ≤+50°C (T6) -60°C ≤Ta ≤+60°C (T5) II 2D Ex tb IIIC T75 °C Db IECEx Compliant: Ex db IIC T5, T6 Gb -60°C ≤Ta ≤+50°C (T6) -60°C ≤Ta ≤+60°C (T5) Ex tb IIIC T75°C Db.





Additional information

Weight 1 kg
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