Fluid Components International GF03 - Manual (Page 32)

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Model GF03 Flow Meter 2 8 Doc. No. 06EN003352 Rev. B
Application fo 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:
m
new
= 0 + (1.056 x m
o
) + (0 x m
o
2 )+ (0 x m
o
3 )
Therefore m
new
= 1.056 x m
o
Where F
1
= 0
F
2
= 1.056
F
3
= 0
F
4
= 0
A more complicated situation would be where the multiplication factor varies with flow rate.
Figure 21 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 21 - Desired Flow Rate versus Measured Flow Rate
Figure 20 - Correction Factor