FlexCal High Precision Portable Gas Flow Calibrator

The new FlexCal

High precision portable gas flow calibrator


Mesa Labs latest standardized and volumetric primary standard offers easy to use calibrations at very wide flow ranges, and highest accuracy.

The FlexCal advantages:

  •     USB port
  •     Gas flow range from 5 Nml/min to 50 Nl/min
  •     Quick start function
  •     Graphical LCD Display
  •     Operator selectable units and time interval


FlexCal offers a standardized accuracy of 0.5% for gas flow ranges up to 50 Nl/min, but is small, easy to transport and suitable for the most demanding applications.
When you use Mesa Labs FlexCal, you're relying on the highest precision with absolute reliability; you don't need soap solutions or highly toxic mercury.
With a FlexCal gas flow calibrator, you can focus on your real work. The FlexCal guarantees a fast and reliable measurement.

  •     Reliable - over 20 years of proven DryCal® technology
  •     Exactly - Certified: ISO17025; NVLAP Accredited, ANSI Z-540, NIST Manual150
  •     Flexible - Transportable, digital interface for automated measurement
  •     Convenient - press a key and have it measure automatically
  •     Safe - no mercury or other liquids required

Flow ranges:

Low: 5 - 500 Nml/min
Meduim: 50 Nml/min- 5 Nl/min
High: 0.5 - 50 Nl/min



Measurement uncertainty: 0.5% of measured value

Units selectable by the user:

Volumetric : mL/min, L/min, cc/min, cf/min
Standardized : smL/min, sL/min, scc/min, scf/min
Temperature °C °F
Pressure mmHg, PSI, kPa
Temperature and pressure sensor are in the gas flow


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This Instruments are manufactured and calibrated by a company accredited to the ISO 17025, ANSI Z540, and NIST Handbook 150 standards. Traceability to the International System of Units (SI) and NIST is verified by accreditation to the ISO/IEC 17025 by NVLAP under Code 200661-0