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4000 Series Flow Meters

Thermal mass flow meters designed for gas flow measurement

The TSI 4000 Series was designed for ultra-low pressure loss to minimize flow circuit back pressure and its impact on the system. The meters include digital and analog outputs for flow rate, absolute pressure, and temperature. Volume measurements can be made through the RS232 digital interface.

Model Selection Guide

Flow Meter Model  Range Connection Tube Size Calibration
4040* 0-300 L/min 22 mm ISO Air, O2, N2
4045* 0-300 L/min 3/4" tube Air, O2, N2
40401 0-300 L/min 22mm ISO Air
4043* 0-200 L/min 1/2" tube Air, O2, N2
41401 0.01-20 L/min 1/4" tube Air
4140* 0.01-20 L/min 1/4" tube Air, O2, N2
4143 0.01-20 L/min 3/8" tube Air, O2, N2
41403 0.01-20 L/min 1/4" tube N2O, Air, O2, N2
41433 0.01-20 L/min 3/8" tube N2O, Air, O2, N2

 

Features and Benefits

  • Accuracy of 2% of reading (not full scale)
  • High turndown ratio
  • Multi-gas, user-selectable
  • 4 ms response to changes in flow
  • Ultra-low pressure drop
  • RS 232 interface for digital outputs and configurable device options
  • Voltage output of flow rate
  • Measure flow rate, temperature, and pressure (display unit only) in one instrument
  • Built-in temperature and pressure compensation
  • NIST-traceable calibration certificate included with purchase

Applications

Researchers, engineers, designers, and scientists use TSI digital flow meters in applications such as:

  • Laboratory
  • Research & development (R&D)
  • Product development
  • Quality assurance
  • Product testing
  • Metrology
  • Medical and hospital
  • Environmental
  • OEM
  • Manufacturing and quality assurance
  • Field Service

Mass Flow Meter 4040

$1095.00 USD

Range: 0-300 L/min. Calibration: Air, O2, N2. Connection: 22 mm ISO.

Mass Flow Meter 40401

$1045.00 USD

Range: 0-300 L/min. Calibration: Air only. Connection: 22 mm ISO.

Mass Flow Meter 4043

$1095.00 USD

Range: 0-200 L/min. Calibration: Air, O2, N2. Connections: 1/2 inch tube.

Mass Flow Meter 4045

$1095.00 USD

Range: 0-300 L/min. Calibration: Air, O2, N2. Connections: 3/4 inch tube.

Mass Flow Meter 4140

$1025.00 USD

Range: 0.01-20 L/min. Calibration: Air, O2, N2. Connections: 1/4 inch tube.

Mass Flow Meter 41401

$975.00 USD

Range: 0.01-20 L/min. Calibration: Air. Connections: 1/4 inch tube.

Mass Flow Meter 41403

$1105.00 USD

Range: 0.01-20 L/min. Calibration: N2O, Air, O2, N2. Connections: 1/4 inch tube.

Mass Flow Meter 4143

$1025.00 USD

Range: 0.01-20 L/min. Calibration: Air, O2, N2. Connections: 3/8 inch tube.

Mass Flow Meter 41433

$1105.00 USD

Range: 0.01-20 L/min. Calibration: N2O, Air, O2, N2. Connections: 3/8 inch tube.

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