Electronics Verification
March 2016
Reference Manual
00809-0100-4772, Rev FA
157
Electronics Verification
C.3 Examples
The following examples illustrate the calculations that may be necessary for your
application. The first set of two examples is in English units. The second set of two examples
is in SI units.
C.3.1 English units
Example 1
In this application, an input frequency of 75 Hz represents a flow rate of 417.1 gpm:
Given
Q = flow rate
F = frequency: 75 Hz
K = K-factor (compensated): 10.79 (via fieldbus configuration tool)
C
x
= C
2
– C
2
= 1.66667E-02 (from Table C-1 on page 156)
Other conditions
Fluid = water
Line size = 3 in.
Line pressure = 100 psig
Operating temperature = 75 °F
Equation
Calculations
Q
75
10.79 0.0166667
×
-------------------------------------------------------=
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