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Magnehelic

Differential Pressure Gage

High and Medium Pressure

Specifications — Installation and Operating Instructions

Bulletin A-27-HP-MP

DWYER INSTRUMENTS, INC.

Phone: 219/879-8000 www.dwyer-inst.com

P.O. BOX 373 • MICHIGAN CITY, INDIANA 46361, U.S.A. Fax: 219/872-9057 e-mail: [email protected]

SPECIFICATIONS

HP MODEL

For maximum internal pressures to 80 psig on one or both sides

of diaphragm in all standard Magnehelic

ranges. Cover is clear

cast acrylic machined to finish dimensions.

MP MODEL

For maximum internal pressures to 35 psig on one or both sides

of diaphragm in all standard Magnehelic

ranges. Cover is clear

molded polycarbonate.

BOTH MODELS

Accuracy: Plus or minus 2 percent of full scale, at 70 degrees

fahrenheit.

Ambient Temperature Range: 20 degrees to 140 degrees

fahrenheit.

Leak check, no bubbles while immersed in water, for 1 minute

using air at rated maximum internal pressure.

Bezel, die cast aluminum.

Case, impregnated die cast aluminum.

Mounting: Same as standard model gage, except for size of hole

in panel for flush mounting. See Bulletin A-27. Will not fit into

portable carrying case.

Connections: 1/8˝ NPT high and low pressure taps, duplicated,

one pair side and one pair back.

Accessories: Mounting ring, bezel snap ring, (2) 1/8˝ N.P.T. pipe

plugs, (2) l/8˝ NPT x 1/4˝ compression fittings, (4) 6-32 x 2˝ RH

machine screws.

Weight: 2 Ibs. 4 oz.

CAUTION: For use with air or compatible gases only. For

repetitive over-ranging or high cycle rates, refer to factory.

A-27-HP-MP:A-27-HP-MP 7/16/10 9:45 AM Page 1

Summary of Contents

Page 1 - High and Medium Pressure

Magnehelic®Differential Pressure GageHigh and Medium PressureSpecifications — Installation and Operating Instructions Bulletin A-27-HP-MPDWYER INSTRUM

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