Series 477AV Handheld Digital Manometer

Handheld Digital Manometer Measures Pressure, Flow and Velocity; ±0.5% Accuracy

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Description

Measures Pressure, Flow and Velocity; ±0.5% Accuracy

The SERIES 477AV Handheld Digital Manometer is now available with pressure, flow, and velocity measurements along with a number of other convenient features. The built-in air velocity and flow calculations provide accuracy and conserve time and error associated with manual calculations. Also featured on this unit are adjustable zero and span values for calibrating in the field, as well as a damping feature to compensate for the fluctuating of readings.

Product Applications

Air flow monitoring, when used with a Dwyer® Pitot tube
Duct static pressure

More Information

Model Chart

EXAMPLE	477AV	2	NIST	477AV-2-NIST, 477AV Differential Pressure Manometer w/ AV and Flow, 40” w.c./10 kPa Range, NIST Calibrated
RANGE		000 00 0 1 2 3 4 5 6 7 8		1” w.c. / 0.249 kPa 4” w.c. / 0.995 kPa 10” w.c. / 2.49 kPa 20” w.c. / 5 kPa 40” w.c. / 10 kPa 200” w.c. / 50 kPa 10 psi / 70 kPa 20 psi / 140 kPa 30 psi / 200 kPa 100 psi / 700 kPa 150 psi / 1000 kPa
OPTIONS			COC FC NIST	Certificate of Calibration Factory Calibration Certificate NIST Traceable Calibration Certificate

Specifications

Service: Air and compatible gases.
Wetted Materials: Consult factory.
Accuracy: ±0.5% FS, 60 to 78°F (15.6 to 25.6°C); ±1.5% FS from 32 to 60°F and 78 to 104°F (0 to 15.6°C and 25.6 to 40.0°C).
Pressure Hysteresis: ±0.1% of full scale.
Pressure Limits: See chart on catalog 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 chart on catalog page.
Units of Pressure: in w.c., ft. w.c., in Hg, psi, oz/in², mm w.c., cm w.c., mm Hg, mbar, Pa, kPa, hPa.
Units of Velocity: fpm, fps, mph, m/h, m/s, k/h, knot.
Units of Flow: cfm, m3/h, m3/s.
Power Requirements: 9 V Alkaline battery, installed non-functional, user replaceable.
Weight: 10.2 oz (289 g).
Process Connections: Two barbed connections for use with 1/8" (3.18 mm) or 3/16" (4.76 mm) ID tubing. Two compression fittings for use with 1/8" (3.18 mm) ID x 1/4" (6.35 mm) OD tubing for 477AV-7 and 477AV-8 only.
Agency Approvals: CE.

Features

Calculates and displays air velocity and volumetric air flow
Rugged aluminum case protects instrument from damage during transport/use
9 selectable English and metric engineering units
Large, easy to read display with backlight for use in dark areas
Stores up to 40 readings with minimum, maximum and average statistics

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