Fluid Components International GF90_GF92 - Manual (Page 46)

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GF Series Flow Meter Models GF90/GF92 42 Doc. No. 06EN003229 Rev. H
Figure 27. Correction Factor
Application of the correction equation will be illustrated in the following example. Through analysis
of the process flow stream it is determined that the flow rate must be multiplied by 1.056 to output the
desired value.
The correction equation takes the following form:
mnew = 0 + (1.056 x mo) + (0 x mo 2 )+ (0 x mo 3 )
Therefore mnew = 1.056 x mo
Where
F1 = 0
F2 = 1.056
F3 = 0
F4 = 0
A more complicated situation would be where the multiplication factor varies with flow rate.
Figure 28 shows the variation of desired flow rate versus the measured flow rate.
Is the
correction
equation
enabled?
Apply correction
equation
Corrected flow rate
Apply other
corrections (see
Aux. Input)
Yes
C00247-2
Manipulate
analog outputs
and relays
Measured flow
rate
No
Measured Flow Rate
Desired
Flow Rate
0
10
20
30
40
50
0 20 40 60
C00248-1
Figure 28. Desired Flow Rate Versus Measured Flow Rate