GE DigitalFlow GC868 Programming Manual page 46

Entering Multiple K Factors
Programming Site Data
MULTK
In the option, you can enter velocity or Reynolds Correction
values into a K-Factor table. You can thus "curve fit" velocity or
Reynolds calibration multiple data points (from several different data
sources or flow variables) to the flow rate reported by the GC868.
[F4]
1. Press to enter the Multiple K Factors option.
[F1] = NO
2. Press to disable or
factors.
•
NO
If you press , the GC868 returns to the
YES
3. If you press , the program asks for the Custom type of data.
[F1]
Press to select velocity data, or
a. If you select a Reynolds table, the meter asks for the Kinematic
Viscosity. Enter the appropriate value, and press
[F1] = NO
4. Press to retain the current K-factor table and return to the
ADVAN
window, or press
Note: If velocity vs. K-factor data was not provided with the Model
GC868, the K-factor table can not be edited.
a. Enter the Number of K-factors to be entered into the table.
[ENT]
Press . (The meter will only accept values from 2 to 20.)
IMPORTANT:
When editing the K-factor table, the velocities must
be entered in increasing order.
b. Enter the Velocity (or Reynolds) Value for K-factor number "x".
[ENT]
Press . (The meter will only accept values from –30,000 to
+30,000 ft/sec.)
c. Enter the K-factor corresponding to velocity or Reynolds
number "x". Press
d. Repeat steps b and c until all of the data points have been
entered.
The GC868 returns to the
[F2] = YES
to enable Multiple K-
ADVAN
[F2]
to select Reynolds data.
[F2] = YES
to Edit The K-factor Table.
[ENT]
.
ADVAN
window.
April 2008
window.
[ENT]
.
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