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    Flow Controllers & Meters

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    MB–Series: Portable Gas Mass Flow Meters

    MB–Series Portable Gas Mass Flow Meters measure mass flow and volumetric flow rates anywhere you need for 98+ gases, making them ideal for on-the-go process calibration, verification, and validation.
    • Portable & durable. Built to be carried around, with a battery lifetime of up to 18 hours and drop-resistance.
    • Versatile & accurate. Real-time measurements with NIST-traceable accuracy to ±0.5% of reading or ±0.1% of full scale for 98+ gases and 20 custom-defined mixtures.
    • Fast, multivariate data. Millisecond-response times immediately upon powering up, to display flow, pressure, and temperature readings in real-time, in your choice of engineering units.

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    Accessories included with purchase
    • Micro-USB to USB cable for power and serial communication
    • USB to wall adapter converter with four interchangeable prong configurations
    • FlowVision software (free download)

    Device specs and customization options

    Quick Specs
    MB–Series performance (most products)
    • Available full scale ranges: 0.5 SCCM to 5,000 SLPM
    • Flow measurement range: 0.01% – 100% of full scale
    • Standard accuracy calibration, NIST-traceable: ±0.6% of reading or ±0.1% of full scale, whichever is greater
    • Optional high-accuracy calibration, NIST-traceable: ±0.5% of reading or ±0.1% of full scale, whichever is greater
    • Repeatability: ±(0.1% of reading + 0.02% of full scale)
    • Typical measurement response time: <10 ms
    • Warm-up time: <1 s
    MB-Series operating conditions
    • Compatible gases: 98+ preloaded selectable gas calibrations, including custom gas mixes
    • Operating temperature: –10°C to +60°C
    • Full scale operating pressure: 160 PSIA
    • Max differential pressure: 75 PSID
    • Proof pressure: 200 PSIA
    • User selectable reference conditions (defaults): 25°C & 1 ATM (STP) and 0°C & 1 ATM (NTP)
    See the full gas list here
    Device Ranges & Full Specs

    Devices are custom ranged from 0.5 SCCM full scale to 5,000 SLPM full scale with measurement ranges of 0.01% to 100% of full scale.

    For a comprehensive device guide, read the mass flow meter operating manual.

    Device Features and Customization Options
    Features
    • Multi-variable process measurements: Simultaneously measure volumetric flow, mass flow, gas pressure, and gas temperature.
    • User changeable units of measurement: Change the unit of measurement for pressure, flow, or temperature from our extensive list of engineering units.
    • Gas selectability: Select your process gas from any of the 98+ preloaded NIST-traceable gas calibrations in our gas list.
    • Gas Select COMPOSER™: Define up to 20 custom gas mixtures of up to 5 constituent gases using our Gas Select Composer™ firmware.
    • Monochrome backlit LCD with integrated touchpad: Easily read measurements using the backlit display and control configurations with the user-friendly integrated touchpad.
    • User adjustable standard temperature and pressure (STP) conditions: Quickly change reference conditions without need for recalibration.
    • Optional integrated dual flow totalizers: Totalize mass or volumetric flow every 1 ms for precise tracking of total flow over time.
    Build and performance options
    • Communications protocol: Serial over micro-USB
    • Displays: Backlit monochrome or color
    • Process connections: NPT, SAE, AN, BSPP/G, compression, or VCR/VCO fittings
    • Wetted materials: 316L stainless steel; FFKM standard, FKM, or EPDM as needed for some gases
    • Calibration: High-accuracy or custom calibration points
    Visit the device customization page
    Optional Accessories
    Accessories | Sold separately
    • Process port fittings and filters
    Visit the accessories page

    Not exactly what you’re looking for?

    • Explore other gas mass flow meter options, including high pressure, low pressure drop, anti-corrosive, and non-portable devices.
    • Check out our other flow or pressure measurement and control solutions.
    • Our expert team of applications engineers is available to provide additional information, discuss your application, or answer any questions you may have.

    Contact an applications engineer

    Learn about diverse flow measurement and calibration applications in our knowledge base
    Photo of MBQ-Series portable gas flow meter
    Learn More
    BrochureManualMB-Series low flow device specsMB-Series mid flow device specsMB-Series high flow device specs
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