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TSI 4146 Primary Calibrator

SKU: 500201


The Model 4146 primary calibrator has a range of 0.01 to 20 L/min (liters per minute). This small, portable, battery-operated unit is lightweight and easy to use. Volumetric flow rate is displayed continuously so adjustments to pump flow can be made in real-time.

This primary calibrator is accurate to 2% of reading.

Features and Benefits:

  1. Provides continuous real-time volumetric flow rate readings, so pump adjustment and calibration is fast and easy
  2. Battery powered, compact and lightweight
  3. Field portable—use the same primary calibrator for adjustment, calibration and periodic checks
  4. Comes with a NIST traceable calibration certificate
  5. Kits come complete and are ready to use
  6. 2 Year Warranty


  • Flow Meter
  • Soft carrying case
  • Battery pack
  • (6) AA Alkaline batteries
  • Connectors
  • Tubing
  • Dampening chamber module
  • Battery pack lugs
  • 2-year warranty
  • User guide
  • NIST certificate of calibration
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