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    Series 477B Handheld Digital Manometer

    Handheld Digital Manometer Precise Air Pressure Measurement, ±0.1% F.S. Accuracy
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    Series 477B Handheld Digital Manometer

    Precise Air Pressure Measurement, ±0.1% F.S. Accuracy

    The SERIES 477B Handheld Digital Manometers are versatile, hand-held, battery operated manometers available in several basic ranges from 0-20 in w.c. up to 100 psi. All models measure either positive, negative or differential pressures with ±0.10% of full scale accuracy. You can select from up to seven common English and metric pressure units so conversions are not necessary. A memory function allows storage of up to 40 readings for later recall and a backlight provides auxiliary lighting for hard-to-see locations. Also standard are a hold feature plus both visual and audible overpressure alarms.

    Product Applications

    • Lab calibration of other pressure instruments
    • Air velocity/air flow measurements in commercial buildings
    More Information
    Model Chart
    EXAMPLE 477B 1 AT Series 477B-1-NIST Handheld Digital Manometer, range 0-20.00" w.c., with NIST calibration.
    SERIES 477B     Handheld Digital Manometer
    RANGE   1
    2
    3
    4
    5
    6
    7    		   0-20.00" w.c.
    0-40.00" w.c.
    0-200.0" w.c.
    0-10.00 psi
    0-30.00 psi
    0-50.00 psi
    0-100.0 psi
    OPTIONS     COC
    FC
    NIST
    Certificate of Calibration
    Factory Calibration Certificate
    NIST Certificate of Calibration
      
    Service: Air and compatible gases.
    Wetted Parts: Consult factory.
    Accuracy: ±0.10% of full scale from 60 to 78F° (15.6 to 25.6°C); ±1% of full scale from 32 to 60 and 78 to 104°F (0 to 15 .6 and 25.6 to 40°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).
    Storage Temperature Limits: -4 to 176°F (-20 to 80°C).
    Display: 4-digit LCD (.425" H x .234" W digits).
    Resolution: See chart on catalog page.
    Power Requirements: 9 volt alkaline battery. Battery included but not connected.
    Connections: Two barbed connections for use with 1/8" (3.18 mm) or 3/16" (4.76 mm) I.D. tubing for 477B-1, 477B-2, 477B-3, 477B-4 and 477B-5 only. Two compression fittings for use with 1/8" (3.18 mm) I.D. x 1/4" (6.35 mm) O.D. tubing for 477B-6 and 477B-7 only.
    Weight: 10.2 oz. (289 g).
    Agency Approvals: CE.
    • Precise 0.1% FS accuracy provides four times better accuracy than most standard manometer/gages
    • Aluminum housing protects instrument against damage
    • 40 readings in internal memory reduces time to record data