AT2-2000 – Explosion-proof ATEX/IECEx Exd Magnehelic® differential pressure gage

Quick Overview

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• Well known Dwyer® Magnehelic® gage now available from Comhas as single instrument Atex/IECEX
• Indicate positive, negative or differential pressure
• Zero center ranges

 

Description

AT2-2000 specifications

Service: air and compatible clean and dry gases.
Wetted parts: consult factory.
Magnehelic® housing: die cast alluminium case and bezel with acrilic cover.
Temperature limits:
Magnehelic®: -6.67 to 60°C (20 to 140°F). Low temperature option to -28.8°C (-20°F).
Case: -60 to 60°C* (-76 to 140°F).
Pressure limits: -20” 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 on Magnehelic® opens at approximately 25 psig (1.72 bar), standard gages only.
Accuracy: ±2% of full scale
±3% on -0, -100 Pa, -125 Pa, -10 mm
±4% on -00, -60 Pa, -6 mm ranges, throughout range at 70°F (21.1°C).
Mounting orientation: diaphragm in vertical position. Consult factory for other position orientations.
Housing material: alluminium (stainless steel optional).
Finishing: texture epoxy coat RAL7038 (only aluminium enclosure).
Process connections: 1/8” female NPT brass (stainless steel optional).
In case of acetylene presence it is requested to use stainless steel.
Dimensions: see drawing below.
Weight: 3.9 Kg ab.

* The operating ambient temperature it is always defined by the limits of measuring elements or options selected.
** For applications with high cycle rate within gage total pressure rating, next higher rating is recommended. See medium and high options.

CAUTION FOR USE ONLY WITH AIR OR COMPATIBLE GASES!
CONTACT FACTORY FOR USE WITH GASES, OTHER THAN AIR AND NITROGEN.

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