From metrological testing to reference comparison, so measurement performance can be checked
Comparison with a SIERRA piston prover
Comparison with a FLUKE MOLBOX1 laminar flow standard
Purpose
Flow readings are checked through metrological testing and comparison with reference systems. On-site photographs record the test; the specific performance is as stated in the datasheet and calibration records of the corresponding model.
Key points
Gas, flow units and standard conditions are aligned, and the comparison is made once the gas path and readings are stable, providing a basis for verifying flow measurement.