Dwyer Instruments SERIES 2-5000 Catalog Page

LOW PRESSURE PORT

[7.14]

[36.51]

SERIES 2-5000

MINIHELIC® II DIFFERENTIAL PRESSURE GAGE

Combining High Accuracy, Compactness, Dependability, and Low Cost

PRESSURE

Ø2-19/32

1-7/16

9/32

[65.88]

2-3/8

[60.33]

Ø3-1/16

[77.79]

[25.40]

2-21/64 [59.18]

SURFACE

MOUNT HOLES

Ø7/16 [11.11] HOLE IN PANEL FOR SURFACE MOUNT

(2) Ø5/32 HOLES IN PANEL FOR SURFACE MOUNT

HIGH PRESSURE PORT Ø7/16 [11.11] HOLE IN PANEL FOR SURFACE MOUNT

Combining clean design, small size and low cost with enough accuracy for all but the most demanding applications our Series 2-5000 Minihelic

II Differential Pressure

Gage offers the latest in design features for a dial type differential pressure gage. It is

our most compact gage but is easy to read and can safely operate at total pressures up to 30 psig.

FEATURES/BENEFITS

• Removable lens and rear-housing provides easy, cost-effective servicing

• Accuracy and value provides an excellent solution for OEM and user applications

• Durable housing materials make it well-suited for rough environments and total high pressure

APPLICATIONS

• Room positive pressure sensing

• Cabinet air-purging

• Medical respiratory equipment

• Air samplers

• Electronic air cooling systems

DifferentialPressureGages

• Laminarowhoods

• Localindicationonlterstatus

• Face velocity on fume hood

• Duct pressures

SPECIFICATIONS Service: Air and compatible gases. Wetted Materials: Consult factory. Housing:

Glassllednylon;polycarbonatelens.

Accuracy: ±5% of FS at 70°F (21.1°C). Pressure Limits: 30 psig (2.067 bar) continuous to either pressure connection. Temperature Limits: 20 to 120°F (-6.67 to 48.9°C).

2-1/16˝(52.39mm)diameterdialface.

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

position orientations.

Process Connections:

Barbed,for3/16˝IDtubing(standard);1/8˝maleNPT

(optional). Weight: 6 oz (170.1 g). Agency Approvals: Meets the technical requirements of EU Directive 2011/65/EU

(RoHS II). Caution: For use only with air or compatible non-corrosive gases.

DWYER INSTRUMENTS, INC. | 26

SERIES 2-5000

MINIHELIC® II DIFFERENTIAL PRESSURE GAGE

Combining High Accuracy, Compactness, Dependability, and Low Cost

PRESSURE

Housing is molded from strong mineral and glass lled

nylon.

Pointer stops of molded rubber prevent pointer over-travel without damage.

Full view lens is removable and molded of acrylic.

Aluminum scale litho -printed black on white, enhances

readability.

Red tipped aluminum pointer, rigidly mounted to helix is easy to see.

Wishbone assembly provides mounting for helix, helix bearings, and pointer shaft.

Jewel bearings provide virtually friction-free helix motion.

Helix is free to rotate in jewel bearings. It aligns with

magnetic eld of magnet to transmit pressure indications

to poi nte r.

Zero adjustment screw, loc ated behind the removable lens, eliminates tampering.

MODEL CHART

Model 2-5000-0 2-5001 2-5002 2-5003 2-5005 2-5010 2-5020 2-5040 2-5060 2-5100

Model 2-5205 0-5

Range, Inches of Water Model

0-0.5 0-1.0 0-2.0

0-3.0

0-5.0 0-10 0-20 0-40

0-60

0-100

Range, PSI

2-5000-25MM 2-5000-50MM 2-5000-100MM

Model 2-5000-125PA 2-5000-250PA 2-5000-500PA

Model 2-5000-1KPA 2-5000-3KPA

Range, MM of Water

0-25 0-50 0-100

Range, Pascals

0-125 0-250 0-500

Range, kPa

0-1

0-3

SURFACE MOUNTING

Range spring calibration clamp xes live length of

spring for proper gage calibration and is factory set and sealed.

Silicone rubber diaphragm allows accurate response to a broad range of temperatures and at extremely low pressure. Incorporates blow out area for overpressure protection.

Diaphragm support plates of lightweight aluminum on each side of the diaphragm minimize position or at titude

sensitivity and help dene pressure area.

Flat leaf range spring reacts to pressure on the diaphragm. Live length is adjustable for calibration. Small amplitude of motion minimizes inaccuracies and assures long life.

Low pressure tap connects to rear chamber.

Coil spring link provides a resilient connection between

the diaphragm and the range spring.

Ceramic magnet mounted on a molded bracket at the end of the range spring rotates the helix without direct mechanical linkage.

High pressure tap connects with the front chamber through passageway in the plastic case and a sealing ring molded into the edge of the diaphragm.

Differential Pressure Gages

Optional surface mounting with back mounting plate allows for quick installation to any surface. Process connections are barbed and point downwards. Add -BB for bottom barbed surface mount option.

OPTIONS To order add sufx: Description

-NPT 1/8˝ male NPT connections Example: 2-5001-NPT

-BB Bottom barbed surface mount Example: 2-5001-BB

-NIST NIST traceable calibration certicate Example: 2-5001-NIST

-FC Factory calibration certicate Example: 2-5001-FC

ACCESSORIES Model Description A-302F-A

A-434 A-489 A-497 A-609 A-480

303 SS static pressure tip with mounting ange; for 3/16˝ ID rubber or plastic tubing; 4˝ insertion depth; includes

mounting screws Portable kit

4˝ straight static pressure tip with ange

Surface mounting bracket

Air lter kit

Plastic static pressure tip

PANEL MOUNTING

Mounting hardware is supplied with the

Minihelic

a single hole, 2-5/8˝ (67 mm) in diameter. Panel thickness up to 1/2˝ (13 mm) can be

accommodated with the hardware supplied. If necessary, surface mounting of the gage can be accomplished by means of two 4-40 screws into the tapped mounting bracket stud holes in the rear of the gage. Surface mounting requires clearance holes in the panel for the two pressure taps.

Process Tubing Options: See page 455 (Gage Tubing Accessories)

II gage for panel mounting through

DWYER INSTRUMENTS, INC. |