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MVI56E-AFC / MVI69E-AFC ♦ Enhanced Liquid and Gas Flow Computer
Configuring Meter Factors
ControlLogix® and CompactLogix™
Setup and Configuration Guide
ProSoft Technology, Inc.
Page 97 of 151
15 Configuring Meter Factors
Meters may begin to wear out over time and the actual measured volume (the "gross
volume") will tend to drift from the nominal measured volume (the "indicated volume").
The factor that corrects "indicated" to "gross" is called the "meter factor", and is a
number very close to 1.
The procedure that is periodically performed to determine a (new) meter factor is called
"proving". A pulse type meter is "proved" periodically to ensure that the meter performs
as expected over a period of time.
A prover passes a known volume of product through the meter and compares the
volume indicated by the meter against the fixed volume of the prover (measured with a
high degree of precision). If the meter indicates the measured volume to be exactly the
same as the known prover volume, the Meter Factor is said to be equal to 1.00000
(
Meter Factor = Prover Volume/Metered Volume
).
Summary of Contents for MVI56E-AFC
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