475 Mk III Digital Differential Manometer

$235.95 -- Digital differential pressure electronic zeroing, large display, Accuracy ą 0.5%

Purchase 475 Mk III Digital Differential Manometer

The DwyerŽ Series 475 Mark III Handheld Digital Manometer is ideal for field calibration, monitoring or trouble shooting HVAC systems, clean rooms or a wide range of other low pressure pneumatic systems. This handy instrument measures positive, negative or differential pressures of air and natural gases in ranges from 1 in. w.c. (0.249 kPa) to 150 psid (10.34 bar). The Series 475-FM is approved and is intrinsically safe for hazardous locations, Class 1, Div.1, Group A, B,C, D, T4.

The meter's simple operation and easy to read digital display make it an indispensable test instrument for the plant engineer, industrial hygienist and HVAC technician. When used with a DwyerŽ Pitot tube, the Series 475 Mark III can also be used as an air velocity gage.

The Series 475-FM Mark III is housed in a durable extruded aluminum case with its solid state circuitry mounted on a tough fiberglass epoxy circuit board. To meet the most demanding applications and to provide stability of instrument reading, the 1" w.c. range is compensated for position sensitivity through use of a unique patented dual sensor system.

A standard 9 volt battery provides up to 100 hours of operation. Dual push pads on the front panel control on-off, auto zero, and pressure unit selection. No setup or leveling. The large 0.42" LCD display is easy to read, minimizing data collection errors. Units include a "low battery" indicator. The pressure sensor used is a highly stable silicon piezoresistive device. Standard connections are dual sized for 1/8" or 3/16" I.D. vinyl or rubber tubing. Complete instructions are conveniently printed on rear of housing.

Features of Dwyer 475 Mk III Digital Manometer Pressure Gauge

New Low Range Option 0-1.000 in. w.c.
Measures Positive, Negative and Differential Pressures
Rugged, Extruded Aluminum Case
Lightweight, Fast and Easy to Use
Selectable English/Metric Units (inches w.c. / kPa or bar)
FM Approved

Specifications of the Dwyer 475 Handheld Differential Pressure Gage

Service: Air and compatible combustible gases.
Wetted Materials: Consult factory.
Accuracy: ą0.5% F.S., 60 to 78°F (15.6 to 25.6°C); ą1.5% F.S. from 32 to 60°F and 78 to 104°F (0 to 15.6°C and 25.6 to 40°C).
Pressure Hysteresis: ą0.1% of full scale.
Pressure Limits: See Ordering page.
Temperature Limits: 0 to 140°F (-17.8 to 60°C).
Compensated Temperature Limits: 32 to 104°F (0 to 40°C).
Storage Temperature Limits: -4 to 176°F (-20 to 80°C).
Display: 0.42" (10.6 mm) 4-digit LCD.
Resolution: See modle/range chart below.
Power Requirements: 9 volt alkaline battery. Battery not connected.

Weight: 10.8 oz. (306 g).
Connections: Two barbed connections for use with 1/8" (3.18 mm) or 3/16" (4.76 mm) I.D. tubing. Two compression fittings for use with 1/8" (3.18 mm) I.D. x 1/4" (6.35 mm) O.D. tubing for 475-7-FM & 475-8-FM only.
Agency Approvals: FM, CE.
Warranty 1 year

The 475 Digital Manometer Series Models and Ranges:

475-000-FM: 0-1.000" w.c. (.2491 kPa), max. press. 5 psig.
475-00-FM: 0-4.000" w.c. (0.996 kPa), max. press. 5 psig.
475-0-FM: 0-10.00" w.c. (2.491 kPa), max. press. 5 psig.
475-1-FM: 0-20.00" w.c. (4.982 kPa), max. press. 10 psig.
475-2-FM: 0-40.00" w.c. (9.96 kPa), max. press. 10 psig.
475-3-FM: 0-200.0" w.c. (49.82 kPa), max. press. 30 psig.
475-4-FM: 0-10.00 psi (.6895 bar), max. press. 30 psig.
475-5-FM: 0-20.00 psi (1.379 bar), max. press. 60 psig.
475-6-FM: 0-30.00 psi (2.069 bar), max. press. 60 psig.
475-7-FM: 0-100.0 psi (6.895 bar), max. press. 150 psig.
475-8-FM: 0-150.0 psi (10.34 bar), max. press. 200 psig.

Order Accessories below:

Purchase 475 Mk III Digital Differential Manometer

SKU: 475
Choose Measuring Range: 475-000-FM: 0-1.000" w.c. (.2491 kPa); 475-00-FM: 0-4.000" w.c. (0.996 kPa); 475-0-FM: 0-10.00" w.c. (2.491 kPa); 475-1-FM: 0-20.00" w.c. (4.982 kPa); 475-2-FM: 0-40.00" w.c. (9.96 kPa); 475-3-FM: 0-200.0" w.c. (49.82 kPa); 475-4-FM: 0-10.00 psi (.6895 bar); 475-5-FM: 0-20.00 psi (1.379 bar); 475-6-FM: 0-30.00 psi (2.069 bar); 475-7-FM: 0-100.0 psi (6.895 bar); 475-8-FM: 0-150.0 psi (10.34 bar)

Other products in the category Pressure Meters / Digital Differential Manometers:

475-1T-FM-AV Air Velocity Kit -- Convenient all-in-one Air Velocity Kit is small, light and easy to use. No set-up or leveling needed. Digital manometer reads from 0-19.99 in. w.c. with ą0.5% F.S. accuracy and minor divisions to 0.01. Large 1/2" LCD readout is easy to see in poorly lighted . . .

477-1T-FM-AV Air Velocity Kit -- Convenient all-in-one Air Velocity Kit is small, light and easy to use. No set-up or leveling needed. Digital manometer reads from 0-20 in. w.c. with ą0.5% F.S. accuracy. The Series 477 stores up to 20 readings in memory for later reference, instantly . . .

477A Dwyer Digital Manometer -- 477A Manometer User Manual           The Popular New Dwyer Digital Manometer Series 477A is available with 0.1% full scale accuracy. The 477A contains a highly accurate differential pressure sensor . . .

477-FM Dwyer Digital Manometer -- 477 Manometer User Manual      Series 477 Handheld Digital Manometers are packed with features you need to make low pressure measurement and recording faster, easier and more accurate than ever. First, you can instantly select . . .

477-USB Dwyer Digital Manometer w/ USB Interface -- 477 Manometer User Manual      Series 477-USB Handheld Digital Manometers are packed with features you need to make low pressure measurement and recording faster, easier and more accurate than ever. First, you can instantly . . .

478A Digital Differential Manometer -- The Series 478A Dwyer Manometer can be used to measure positive, negative, or differential pressures. The unit features selectable units, auto zero, hold and a Min/Max function. Press the Hold key to freeze the current pressure measurement on the display. . . .

HM28 Hand-Held Digital Manometer -- HM28 Manometer User Manual      The DwyerŽ LoveŽ HM28 Handheld Digital Manometer is a precision instrument designed to measure a wide range of pressures to a very high accuracy. The unit incorporates a variety of . . .

HM35 Absolute Pressure Manometer Data Logger -- HM35 Manometer User Manual           The High Precision Series HM35 Digital Manometer is designed to reliably measure and log pressure measurements for critical applications. This family of manometer . . .

HM35 Differential Pressure Meter Datalogger -- HM35 Manometer User Manual           The High Precision Series HM35 Digital Manometer is designed to reliably measure and log pressure measurements for critical applications. This family of manometer . . .

HM35 Gauge Pressure Manometer Data Logger -- HM35 Manometer User Manual           The High Precision Series HM35 Digital Manometer is designed to reliably measure and log pressure measurements for critical applications. This family of manometer . . .

Accessories

A-201 Tubing for Portable Digital Manometers

A-303 Portable Static Pressure Tip

A-402A Zippered Carry Case for Digital Manometers