TSI Mass Flowmeter 5230-2 TSI Mass Flowmeter 5230-2

TSI Gas Mass Flowmeter (Plus Kit) 5230-2

The TSI Mass Flow Multi-Meter 5230-2 provides a bi-directional flow rate measurement with an increased 1.5% of reading accuracy across a wide flow range. Integrated temperature and pressure sensors compensate flow measurements to provide mass flow readings independent of temperature or pressure.

Key Features

  • SKU: 5230-2
  • Range: 0 to ± 30 Std L/min
  • Accuracy: 1.5% of reading
  • Calibration: Air, O2, N2
  • Includes Standard Accessory Kit
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Please note - Product designs and specifications are subject to change without notice. The user is responsible for determining the suitability of this product. We offer distribution of TSI products to the UK and Ireland.

In addition to temperature and absolute pressure measurements, a built-in totalizer measurement enables users to make volume measurements as a running total. All 5200 Series models come with a standard accessory kit (see full list below). The 5230 model includes a tabletop stand.


5220 models include integrated humidity and differential pressure sensors. The humidity sensor provides relative humidity readings and its measurements are used to compensate the flow measurement for humidity effects. The added pressure sensor enables users to measure the pressure differential of flows at the flow meter or at any point in the line. In addition to the totalizer, these models can make precise volume measurements through the use of flow or pressure triggers. 5230 models also include a built-in data logger that can save synchronized measurement data directly to the flow meter.


View up to four readings simultaneously from the color touchscreen display. Quickly and easily configure measurements and device settings directly from the flow meter. Connect and operate the gas flow meter through your PC with FLO-Sight software to take advantage of advanced data display and device settings options.


TSI Flow Meters are lightweight, compact, and can measure across a wide dynamic operating range. The 5000 Series Flow Meter also incorporates configurable tube end adapters, touchscreen control, and multiple mounting options. Whether measuring gas flows in a laboratory, manufacturing, or service setting, the 5000 Series Flow Meter can adapt to fit your unique application.


5000 Series Flow Meters utilize a proprietary platinum film sensor with proven performance that’s been relied upon for more than 35 years. The TSI flow sensor design is optimized for applications where high accuracy, fast response, and low pressure drop are performance musts. Fast sensor response ensures accuracy in fluctuating flows and is ideal for closed-loop control systems and integrated volume measurements. The low pressure drop of TSI flow meters minimizes flow circuit back pressure and its impact on the system.


  • 3/8 inch and 1/4 inch inlet filters
  • AC adaptor with universal plug set
  • USB-C to USB-A power/communications cable
  • USB hub cable
  • 3/8 inch, 1/4 inch, and 10mm tube ends
  • 3/8 inch and 1/4 inch tubing (4 inch pieces)


  • Temperature, pressure and humidity compensated mass flow rate
  • 4 millisecond bi-directional flow response
  • Increased accuracy (± 1.5% of reading)
  • Low pressure drop minimizes back pressure
  • Wide dynamic operating range (1000:1 turndown ratio)
  • Other measurements include humidity, differential pressure, volume (with triggers), temperature, absolute pressure, and totalizer
  • 2.8-inch color touchscreen operation
  • Display four measurement parameters simultaneously
  • Log data for any parameter
  • Configurable tube end connectors
  • USB power and data communications
  • Tabletop stand included
  • 16 Point NIST-traceable Calibration Certificate included
  • Includes basic FLO-Sight™ PC software



Our 5000 Series Flow Meters Base Models provide:

  • Flow and Totalizer Measurements
  • Temperature and Absolute Pressure Measurements
Base Models Air, N2 Air, O2, N2 Air, CO2, N2 O2 CO2
±30 L/min


5200-2 5200-3 5200-6 5200-7
±300 L/min 5300-1 5300-2 5300-3 5300-4 5300-5


Our 5000 Series Flow Meters Advanced Models provide all the features the Base Models include, as well as:

  • Volume Measurements (displayed on the touchscreen)
  • Differential Pressure Measurements
  • Data Logging
Advanced Models Air, N2 Air, O2, N2 Air, CO2, N2 O2 CO2
±30 L/min


5210-2 5210-3 5210 5210-7
±300 L/min 5310-1 5310-2 5310 5310-4 5310-5


Our 5000 Series Flow Meters Humidity Models provide all the features the Advanced Models include, as well as:

  • Relative Humidity Measurements
  • Humidity Compensation of the Air Flow Measurement
Humidity Models Air, N2 Air, O2, N2 Air, CO2, N2 O2 CO2
±30 L/min   5220-2      
±300 L/min   5320-2      


Our 5000 Series Flow Meters High Accuracy Models provide all the features the Humidity Models include, as well as:

  • Higher Accuracy (1.5% of reading)
  • Tabletop Stand Accessory
High Accuracy Models Air, N2 Air, O2, N2 Air, CO2, N2 O2 CO2
±30 L/min   5230-2      
±300 L/min   5330-2      


Our 5000 Series Flow Meters Wide Accuracy Models provide all the features the Base Models include, as well as:

  • Wide Accuracy Specification (3%)
Wide Accuracy Models Air, N2 Air, O2, N2 Air, CO2, N2 O2 CO2
±30 L/min   5203-2      
±300 L/min   5303-2