HomeEnvironmentalAir Particles and Velocity Instruments › TSI Model 4000 Series Mass Flowmeters for Gases

TSI Series Mass Flowmeters for Gases

Models 4000 Series

TSI thermal mass flowmeters incorporate a proprietary platinum film sensor design for measuring gas flows in applications demanding fast response and high accuracy over a wide flow range. TSI flowmeters have turn-down ratios greater than 1000:1 due to our thermal flow sensing technology and extensive gas calibration process. The TSI 4000 Series was designed for ultra-low pressure loss to minimize any undesirable effects the flowmeter can have on the readings when installed in-circuit.


  4 millisecond flow response
  High accuracy 2% of reading
  High turndown ratio
  Low pressure drop
  Convenient analog output of flow rate
  Versatile digital output of flow rate, volume, pressure, temperature
  Built-in temperature and pressure compensation
  NIST-traceable calibration certificate included at no additional cost

RS232 Interface For Digital Outputs and Configurable Device Options

  Set analog output zero and scaling
  Specify start/stop trigger levels for volume measurement
  Set update rate for LCD display
  Set sampling rate for analog and digital outputs
  Select gas calibration
  Select either standard or volumetric flow measurement
  Set display units for Model 4140/4143 to L/min or cm3/min
  Compute volume


  Medical - Ventilators, Anesthesia and CPAP
  Aerosol Science


  Product Development
  Field Service
  Quality Assurance

Data Sheet

This range includes models 4140, 4143, 4040, 4043, 4045, 41211, 41212, 41216, 41221, 41222, 41226, 40211, 40212, 40241, 40242 and 40246.

Please note - Product designs and specifications are subject to change without notice. The user is responsible for determining the suitability of this product.

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4000 Series Mass Flowmeters for Gases


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