Dwyer AT22000 Magnehelic Differential Pressure Gauge

Dwyer AT22000 Magnehelic Differential Pressure Gauge is now available in a flameproof enclosure with the new ATEX/IECEx approved AT22000 Series. This gauge can indicate positive, negative, or differential pressures and is accurate within 2%.

Known for quality, reliability, and accuracy, Dwyer designs and manufactures a full-line of Controllers, Data Loggers, Gages, Manometers, Monitors, Remote Displays, Switches, Transmitters, and Accessories to measure monitor and control pressure, air velocity, flow, fan pressure, duct, and more.

Dwyer’s wide selection extends to Gages, Transmitters, Switches, Data Loggers, and Monitors for Differential Pressure. Dwyer manufactures a range of dial and digital gages to reliably measure and display pressure difference, between two pressure sources using gas or liquid in a process flow.

Pressure, flow, and piston-type gages are all found within this category. Clean design, small size, and low cost with enough accuracy for all but the most demanding applications, these gages are the best around. Gages are indicators for the difference between two pressures or simply a single pressure.

Known for quality, reliability, and accuracy, Dwyer designs and manufactures a full-line of Controllers, Data Loggers, Gages, Manometers, Monitors, Remote Displays, Switches, Transmitters, and Accessories to measure monitor and control pressure, air velocity, flow, fan pressure, duct, and more.

Dwyer’s wide selection extends to Gages, Transmitters, Switches, Data Loggers, and Monitors for Differential Pressure. Dwyer manufactures a range of dial and digital gages to reliably measure and display pressure difference, between two pressure sources using gas or liquid in a process flow.

Pressure, flow, and piston-type gages are all found within this category. Clean design, small size, and low cost with enough accuracy for all but the most demanding applications, these gages are the best around. Gages are indicators for the difference between two pressures or simply a single pressure.

Dwyer AT22000 Magnehelic Features

  • ATEX housing provides all the capabilities and value of the Magnehelic® in a flame & explosion-proof enclosure
  • Quick response to pressure changes means no delay in assessing critical situations
  • Durable and rugged housing and high-quality components combined provide long-service life and minimized down-time
  • High impact strength and high temperature rated for applications where hazardous environments exist

Application

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

Dwyer AT22000 Magnehelic Specification

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.
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.
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. IP65 with option OPV, overpressure relief valve.
Housing material Aluminum.
Finishing Texture epoxy coat RAL7038.
Pressure Connections 1/8″ NPT female brass (SS optional). In presence of acetylene it is necessary to use SS.
Weight 8.6 lb (3.9 kg).
ATEX Certificate BVI 14ATEX0072.
Agency Approvals ATEX Compliant CE 1370 Ex II 2G Ex d IIC T6 Gb / II 2D Ex tb IIIC T85°C Db, -60°C=Tamb=+60°C IECEx Compliant: Ex d IIC T6 Gb / Ex tb IIIC T85°C Db

Download Data Sheet: Series AT22000 Magnehelic® Differential Pressure Gage

Reference: dwyer-inst.com

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