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          DWYER 數字壓力計 477AV-3

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          DWYER 數字壓力計 477AV-3

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          DWYER 數字壓力計 477AV-3

          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.

          ModelDescription

          477AV-0Digital manometer, range 0-10.00" w.c., air velocity/flow modes.

          477AV-00Digital manometer, range 0-4.00" w.c., air velocity/flow modes.

          477AV-000Digital manometer, range 0-1.00" w.c., air velocity/flow modes.

          477AV-1Digital manometer, range 0-20.00" w.c., air velocity/flow modes.

          477AV-2Digital manometer, range 0-40.00" w.c., air velocity/flow modes.

          477AV-3Digital manometer, range 0-200.00" w.c., air velocity/flow modes.

          477AV-4Digital manometer, range 0-10.00 psi, air velocity/flow modes.

          477AV-5Digital manometer, range 0-20.00 psi, air velocity/flow modes.

          477AV-6Digital manometer, range 0-30.00 psi, air velocity/flow modes.

          477AV-7Digital manometer, range 0-100.00 psi, air velocity/flow modes.

          477AV-8Digital manometer, range 0-150.00 psi, air velocity/flow modes.

          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.

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