Datasheet Content
TEST & DATA
SERIES 477AV
HANDHELD DIGITAL MANOMETER
Measures Pressure, Flow and Velocity; ±0.5% Accuracy
2-13/16 [71.44]
1-1/16
[26.99]
41/64
[16.27]
BARBED FOR
1/8 OR 3/16
ID TUBING
5-57/64
[149.68]
VIDEO ON
LINE
29/32
[23.02]
The Series 477AV Handheld Digital Manometer is now available with pressure, flow, SPECIFICATIONS
and velocity measurements along with a number of other convenient features. The Service: Air and compatible gases. Units of Pressure: in w.c., ft w.c., in Hg,
built-in air velocity and flow calculations provide accuracy and conserve time and error Wetted Materials: Consult factory. psi, oz/in2, mm w.c., cm w.c., mm Hg,
associated with manual calculations. Also featured on this unit are adjustable zero and Accuracy: ±0.5% FS, 60 to 78°F (15.6 mbar, Pa, kPa, hPa.
span values for calibrating in the field, as well as a damping feature to compensate for to 25.6°C); ±1.5% FS from 32 to 60°F Units of Velocity: fpm, fps, mph, m/h,
the fluctuating of readings. and 78 to 104°F (0 to 15.6°C and 25.6 m/s, k/h, knot.
to 40.0°C). Units of Flow: cfm, m3/h, m3/s.
FEATURES/BENEFITS Pressure Hysteresis: ±0.1% FS. Power Requirements: 9 V alkaline
• Calculates and displays air velocity and volumetric air flow Pressure Limits: See chart. battery, installed non-functional, user
• Rugged aluminum case protects instrument from damage during transport/use Temperature Limits: 0 to 140°F (-17.8 replaceable.
• 9 selectable English and metric engineering units to 60°C). Weight: 10.2 oz (289 g).
• Large, easy to read display with backlight for use in dark areas Compensated Temperature Limits: 32 Process Connections: Two barbed
• Stores up to 40 readings with minimum, maximum and average statistics to 104°F (0 to 40°C). connections for use with 1/8˝ (3.18
Storage Temperature Limits: -4 to mm) or 3/16˝ (4.76 mm) ID tubing. Two
Manometers,
APPLICATIONS 176°F (-20 to 80°C). compression fittings for use with 1/8˝
• Air flow monitoring Display: 0.42˝ (10.6 mm) 4 digit LCD. (3.18 mm) ID x 1/4˝ (6.35 mm) OD tubing
Portable
• Duct static pressure Resolution: See chart. for 477AV-7 and 477AV-8 only.
Agency Approvals: CE.
MODEL CHART
Velocity Range Available Pressure Units
Pressure in mm mm cm Maximum
Model Range fpm m/s psi in Hg kPa w.c. Hg mbar w.c. Pa ft w.c. oz/in2 hPa w.c. Pressure
477AV-000 0 to 1.000 in w.c. 4004 20.34 - 0.0736 0.2491 1.000 1.868 2.491 25.40 249.1 0.0833 0.5780 2.491 2.540 5 psig
477AV-00 0 to 4.000 in w.c. 8009 40.69 0.1445 0.2942 0.996 4.000 7.473 9.96 101.6 996 0.3333 2.312 9.964 10.16 5 psig
477AV-0 0 to 10.00 in w.c. 1.266k 64.33 0.3613 0.7355 2.491 10.00 18.68 24.91 254.0 2491 0.8333 5.780 24.91 25.40 5 psig
477AV-1 0 to 20.00 in w.c. 1.791k 90.97 0.7225 1.471 4.982 20.00 37.36 49.82 508.0 4982 1.667 11.56 49.82 50.80 10 psig
477AV-2 0 to 40.00 in w.c. 25.33k 128.7 1.445 2.942 9.96 40.00 74.73 99.6 1016 9964 3.333 23.12 99.64 101.6 10 psig
477AV-3 0 to 200.0 in w.c. 56.63k 287.7 7.225 14.71 49.82 200.0 373.6 498.2 5080 - 16.67 115.6 498.2 508.0 30 psig
477AV-4 0 to 10.00 psi 66.62k 338.4 10.00 20.36 68.95 276.8 517.1 689.5 7031 - 13.07 160.0 689.5 703.1 30 psig
477AV-5 0 to 20.00 psi 94.22k 478.6 20.00 40.72 137.9 553.6 1034 1379 - - 46.13 320.0 1379 1406 60 psig
477AV-6 0 to 30.00 psi 115.4k 586.2 30.00 61.08 206.9 830.4 1551 2069 - - 69.20 480.0 2068 2109 60 psig
477AV-7 0 to 100.0 psi 210.7k 1070 100.0 203.6 689.5 2768 5171 6895 - - 230.7 1600 6895 7031 150 psig
477AV-8 0 to 150.0 psi 258.0k 1311 150.0 305.4 1034 4152 7757 - - - 346.0 2400 - - 200 psig
OPTIONS
To order add suffix: Description
-NIST NIST traceable calibration certificate
Example: 477AV-1-NIST
ACCESSORIES
Model Description
A-402A Carrying case; tough gray nylon pouch protects any Series
477AV Manometer; double zippered for quick and easy
access, with a belt loop that snaps closed; 7-1/2˝H x 3˝W x
2-1/4˝D (191 x 76 x 57 mm)
UHH-C1 Soft carrying case A-402A UHH-C1 A-47X-BOOT
A-47X-BOOT Protective magnetic rubber boot (manometer not included)
DWYER INSTRUMENTS, INC. | dwyer-inst.com 171
TestData_2021.indb 171 7/15/20 2:11 PM
