Meter Proving for Gateway3 Sites

A meter prover is used as the verification of flow meter uncertainty. This is undertaken in order to establish:

• The K Factor – or the pulses per unit volume
• The meter factor – used to correct accuracy for ambient conditions
• The linearity over the calibrated flow range
• The repeatability for the system

A meter factor is achieved by dividing the prover test volume by the indicated volume of the meter. Once the factor is ascertained it can be used as a volume correction for net standard volume of the delivery or receipt of liquids.