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Meter Calibration (Continued)
Temperature Correction
If the testing conditions are such that the temperature of the liquid differs by more than a few degrees between the
meter and the prover, it is advisable to apply temperature correction to the prover readings. Thermowells must be
installed into the system and temperature readings must be taken during test runs at the meter and in the prover.
Corrections are made by the use of API Volume Correction Factor Tables.
Calibration Adjustment
One complete turn of the adjuster barrel is equal to 1 gallon in 100 gallons or 1% of delivered 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.
Page 15
Volume on Prover minus Volume on Meter Counter
Volume on Meter Counter
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TCS900003, Rev.6
04/26/2016
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Troubleshooting
