Gas flow Meter calibration system is the procedure of comparing the pre-set scale or metering of a flow meter to a standard scale of measurement and altering its metering to conform to the standard. Calibration is a vital aspect of instrumentation in an extensive range of industries that require high-accuracy measurements with a minor percentage of error e.g. in Oil & Gas, Petrochemical, and manufacturing.

Flow meters are calibrated by comparing and regulating their metering to correspond with a predefined standard. Flow meter manufacturers normally calibrate their products in-house after production or send them to an independent calibration facility for adjustment.

Gas Meter Calibration System includes comparing the measurements of a flow meter in operation to that of a standard flow measurement device under the same conditions and regulating the scale of the flow meter to be in close agreement with the standard.

Flow meter recalibration comprises calibration of a flow meter which is already in use. Periodic recalibration is crucial as flow meter readings will often go ‘out of phase’ over time due to variable conditions involved in industrial processes.

The main variance between the two procedures is that flow calibration is done before the meter is sent out for use while recalibration is done after the flow meter has been in operation for a while. Software tools can also be used to confirm the accuracy of measurements after a flow meter has been calibrated.