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TSI 4046 and 4146

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Personal sampling pumps must be calibrated before and after each use and routinely checked during use. Flow calibrators are used to adjust and measure the flow rate of air sampling instruments.

TSI offers the Model 4146 and Model 4046 primary calibrators. These portable, battery-operated units are lightweight and easy to use. Volumetric flow rate is displayed continuously so adjustments to pump flow can be made in real-time. These primary calibrators are accurate to +/- 2 % of reading.

Product Features

  • 2 model types
  • Document downloads

Instrument product options

1. Select a model (2 available)

Continue to select accessories

2. Select accessories

3. Select a calibration



  • Provides continuous real-time volumetric flow rate readings, so pump adjustment and calibration is fast and easy
  • Battery powered, compact and lightweight
  • Field portable-use the same primary calibrator for adjustment, calibration and periodic flow checks
  • Comes with a NIST traceable calibration certificate
  • Kits come complete and are ready to use


MODEL 4146:

Flow measurement range      0.01 to 20 lpm

Accuracy      ± 2 % or 0.005 std lpm whichever is the greater

Size      12.7 cm x 5 cm x 3.2 cm

Weight      1.0 kg

Warm up time      1 minute

MODEL 4046:

Flow measurement range      2.5 to 300 lpm

Accuracy      ± 2 % or 0.05 std lpm whichever is the greater

Size      18.3 cm x 6.4 cm x 5.3 cm

Weight      1.1 kg

Warm up time      1 minute



TSI 4046 and 4146 calibrator data sheet

  • Technical Document
  • PDF file
  • 193 KB

TSI 4046 and 4146 calibrator user manual

  • Technical Document
  • PDF file
  • 712 KB
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