Meter Calibration (Continued) - TCS 700-30 Installation, Operation & Maintenence Manual

Meter Calibration (Continued)

Temperature Correction
If the conditions of testing are such that there will be a change of more than a few degrees in the tempera-
ture of the liquids between the time it passes through the meter and the time the prover is read, it will be
advisable to make a temperature correction to the prover readings. To do this, it is necessary to install
thermowells; to take readings of the temperature of the liquids in the meter and in the prover; and to take
the degrees API of the liquid. Corrections can then be easily made by the use of the National Standard
API Tables.
Calibration Adjustment
One complete turn of the adjuster barrel is equal to 1 gallon in 100 gallons or 1% of de-
livered volume. The adjuster body will show divisions of 1%, while the adjuster barrel
has divisions of 0.02%.
For volumes other than 100 gallons, the following formula may be used to calculate the
Adjuster percent to increase or decrease prover volume.
Volume on Prover minus Volume on Meter Counter
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Volume on Meter Counter