MAGNEHELIC® DIFFERENTIAL PRESSURE GAGES

Indicate Positive, Negative or Differential,Accurate within 1%

RUBBER PRESSURE RELIEF PLUG

WILL UNSEAT ITSELF WHEN GAGE

IS OVERPRESSURIZED

[3] 6-32 X 3/16 [4.76] DEEP

HOLES EQUALLY SPACED ON

A Ø4-1/8 [104.78] BOLT CIRCLE

FOR PANEL MOUNTING

1/8 FEMALE NPT

HIGH PRESSURE

CONNECTION

1-3/4

[44.45]

1/2

[12.70]

1/8 FEMALE NPT LOW

PRESSURE CONNECTION

11/16

[17.46]

15/32 [11.91]

1-11/16 [42.86]

Ø4-1/2

[114.3]

1-1/4 [31.75]

17/32

[13.49]

.025 [.64] SPACE CREATED BY 3 SPACER

PADS WHEN SURFACE MOUNTED.

DO NOT OBSTRUCT. PROVIDES PATH

FOR RELIEF OF OVERPRESSURE.

1/8 FEMALE

NPT HIGH

PRESSURE

CONNECTION

1/8 FEMALE

NPT LOW

PRESSURE

CONNECTION

7/16 [11.11]

Ø4-3/4

[120.65]

1/8 FEMALE NPT

HIGH PRESSURE

CONNECTION

1-3/4

[44.45]

1/2

[12.70]

1/8 FEMALE

NPT LOW

PRESSURE

CONNECTION

11/16

[17.46]

17/32

[13.49]

ø4-3/4 [120.65]

PANEL CUTOUT

ø5

[127]

ø4-47/64

[120.27]

3/16

[4.76]

2-17/32

[64.29]

15/32

[11.91]

ø4-1/2

[114.3]

1-1/4

[31.75]

ø5-1/2

[139.70]

MOUNTING RING

Select the

Series 2000 Magnehelic® Differential Pressure Gages for a versatile low

differential pressure gage with a wide choice of 81 models and 27 options to choose

from. Using Dwyer’s simple, frictionless Magnehelic® gage movement, it quickly

indicates air or non-corrosive gas pressures--either positive, negative (vacuum) or

differential. The design resists shock, vibration, over-pressures and is weatherproof

to IP67.

Select the –HA High Accuracy Magnehelic® gage option for an accuracy within 1%

of full-scale. Also included with the –HA option at no extra cost are a mirrored scale

overlay and a 6 point calibration certificate.

BENEFITS/FEATURES

• Easy to read gage through undistorted plastic face permits viewing from far away

• Patented design provides quick response to pressure changes means no delay in

assessing critical situations

• Durable and rugged housing and high-quality components combine to provide long-

service life and minimized down-time

• High accuracy option is twice as accurate as the standard Magnehelic® gage

APPLICATIONS

• Filter monitoring

• Air velocity with Dwyer® pitot tube

• Blower vacuum monitoring

• Fan pressure indication

• Duct, room or building pressures

• Clean room positive pressure indication

u

Over Protection Note: See page 21 (Series 2000)

A-432

A-605

SERIES 2000

VVIID

DEEO

O OONN

High Accuracy Magnehelic® gage

Shown with optional -SS bezel

Standard Magnehelic® gage

DWYER INSTRUMENTS, LLC | dwyer-inst.com

20

SPECIFICATIONS

Service: Air and non-combustible, compatible gases (natural gas option available).

Note: May be used with hydrogen. Order a Buna-N diaphragm. Pressures must be

less than 35 psi.

Wetted Materials: Consult factory.

Housing: Die cast aluminum case and bezel, with acrylic cover. Exterior finish is

coated gray to withstand 168 hour salt spray corrosion test.

Accuracy: ±2% (-HA model ±1) of FS (±3% (-HA ±1.5%) on -0, -100PA, -125PA,

-10MM and ±4% (-HA ±2%) on -00, -60PA, -6MM ranges), throughout range at 70°F

(21.1°C).

Pressure Limits: -20 in Hg to 15 psig (-0.677 to 1.034 bar); MP option: 35 psig

(2.41 bar); HP option: 80 psig (5.52 bar).

Enclosure Rating: IP67.

Overpressure: Relief plug opens at approximately 25 psig (1.72 bar), standard

gages only.u

Temperature Limits: 20 to 140°F* (-6.67 to 60°C). -20°F (-28°C) with low

temperature option.

Size: 4˝ (101.6 mm) diameter dial face.

Mounting Orientation: Diaphragm in vertical position. Consult factory for other

position orientations.

Process Connections: 1/8˝ female NPT duplicate high and low pressure taps - one

pair side and one pair back.

Weight: 1 lb 2 oz (510 g), MP & HP 2 lb 2 oz (963 g).

Standard Accessories: Two 1/8˝ NPT plugs for duplicate pressure taps, two

1/8˝ pipe thread to rubber tubing adaptor, and three flush mounting adapters with

screws. (Mounting and snap ring retainer substituted for three adapters in MP & HP

gage accessories.)

Compliance: Meets the technical requirements of EU Directive 2011/65/EU (RoHS

II).

Note: -SP models not RoHS approved.

*Low temperature models available as special options.

Note: For applications with high cycle rate within gage total pressure rating, next

higher rating is recommended. See Medium and High pressure options.

CALIBRATION SERVICES AVAILABLE

ACCESSORIES

Model Description

A-432

A-605

A-605B

A-605C

Portable kit; combine carrying case with any Magnehelic® gage of

standard range, except high pressure connection. Includes 9 ft (2.7 m) of

3/16˝ ID rubber tubing, standhang bracket and terminal tube with holder

Air filter gage accessory kit; adapts any standard Magnehelic® gage for

use as an air filter gage. Includes aluminum surface mounting bracket

with screws, two 5 ft (1.5 m) lengths of 1/4˝ aluminum tubing, two static

pressure tips and two molded plastic vent valves, integral compression

fittings on both tips and valves

Air filter gage accessory kit; air filter kit with two plastic open/close valves,

two 4˝ steel static tips, plastic tubing and mounting flange

Air filter gage accessory kit; air filter kit with two plastic open/close valves,

two plastic static tips, plastic tubing and mounting flange

USA: California Proposition 65

WARNING: This product can expose you to chemicals including Lead, which is known to the State

of California to cause cancer and birth defects or other reproductive harm. For more information go

to www.P65Warnings.ca.gov.

YEAR LIMITED

WARRANTY