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    Series 490A Wet/Wet Handheld Digital Manometer

    Wet/Wet Handheld Digital Manometer Liquid & Gas Pressure Measurement, ±0.5% FS Accuracy
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    Series 490A Wet/Wet Handheld Digital Manometer

    Liquid & Gas Pressure Measurement, ±0.5% FS Accuracy

    The SERIES 490A Digital Manometers are versatile, hand-held, battery operated manometers available in several basic ranges for positive or positive differential pressure measurement and can tolerate most liquid media compatible with 316LSS. A new feature added to the Series 490A is a field adjustable damping, which allows the user to choose the level of display averaging rate corresponding to the fluctuation level common in many applications.

    Product Applications

    • Chiller to coils for freeze protection
    • HEPA filters to determine when a filter needs to be changed
    • Measure pressure drop across pumps
    • Valves to determine valve position
    More Information
    Model Chart
    EXAMPLE 490A 1 AT Series 490A-1-AT Wet/Wet Handheld Digital Manometer, range 0-15.00 psi, with aluminum tag.
    SERIES 490A     Wet/Wet Handheld Digital Manometer
    RANGE   1
    2
    3
    4
    5
    6    		   0-15.00 psi
    0-30.00 psi
    0-50.00 psi
    0-100.0 psi
    0-500.0 psi
    0-200.0 psi
    OPTIONS     AT
    COC
    FC
    NIST
    ST
    3V    		 Aluminum Tag
    Certificate of Calibration
    Factory Calibration Certificate
    NIST Traceable Calibration Certificate
    Stainless Steel Tag
    3-Way Valve with Bleed Screw (100 psi max
    Service: Compatible gases & liquids.
    Wetted Materials: Without valve: 316L SS; Additional wetted parts with 3-way valve option: Buna-N, silicone grease, PTFE, brass 360, copper, reinforced acetal copolymer. 
    Accuracy: ±0.5% FS from 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°C).
    Pressure Hysteresis: ±0.1% FS.
    Pressure Limits: See chart on catalog page.
    Temperature Limits: 32 to 140°F (0 to 60°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.
    Power Requirements: 9 V alkaline battery, installed non-functional, user replaceable.
    Process Connections: Two 1/8" (3.18 mm) female NPT.
    Weight: 14.1 oz (400 g).
    Agency Approvals: CE.
    • Up to 0.5% accuracy
    • Seven user-selectable English and metric units
    • Stores up to 40 readings for later recall
    • Backlight for use in dim areas