AT22000系列 防爆微差壓表-德威爾Dwyer
The popular SERIES AT22000 Magnehelic® Differential Pressure Gage is now available in a flame-proof ATEX enclosure with the new ATEX approved AT22000 Series. 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 area.
Please see SERIES 2000 for non-ATEX approved.
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. See overpressure protection note on Magnehelic® Gage catalog page.
Temperature Limits: 20 to 140°F (-6.67 to 60°C); Low temperature option: -20°F (-28.8°C); Case: -76 to 140°F (-60 to 60°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 Approved Product from Comhas with ECN: BVI 14ATEX0072.
Agency Approvals: CE 1370 II2 GD Ex d IIC Gb T6; -60°C ≤ Ta ≤ +60°C Ex tb IIIC Db T 85°C.
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