Gas Flow Calibrations
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The WGFS uses critical venturis and critical nozzles that have been calibrated in the PVTt standards as working standards or reference flow meters to calibrate customer flow meters. The uncertainty of the WGFS is 0.1% at flows less than 2000 L/min and 0.12% at flows larger than 2000 L/min. Pressure regulators provide CFV pressures up to 700 kPa. The gas source for the WGFS can be dried air from our compressor, nitrogen from a dewar (<150 L/min), or other gases from compressed gas cylinders (<100 L/min).
To read more about the principles
of operation and uncertainties of our gas flow standards and see sample calibration
reports see our Technical
Notes and Publications.
Turnaround time for a single
flow meter is approximately 4 weeks:
However, please contact Gina Kline to schedule the calibration of your instrument(s).
To have your flow meters calibrated:
Gina Kline |
John
D. Wright |
Aaron
Johnson |