Cannon Instrument miniAV-X - Manual (Page 39)

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CANNON ® miniAV-X Automatic Viscometer with VISCPRO ® Instruction & Operation Manual
Version 1.0b— March, 2012; CANNON ® Instrument Company
2139 High Tech Road • State College, PA 16803 • USA
The miniAV-X Calibration window
9. Use the spin controls to select the desired Bulb for calibration.
Selecting samples 10. Select (or deselect) the specific sample entries you desire to use for
calibration from the displayed list by clicking on them. To select a
range of samples, highlight the first sample and click on the last
sample while simultaneously pressing the
S key. To select
several individual samples for calculation, hold down the C key
and click on each of the desired samples.
NOTE You must select at least two entries or the software will not recalculate
the constants.
11. When the desired samples have been selected, click on Calculate
New Constants . The new constant(s) for that bulb, C and E , will be
displayed in their respective fields at the bottom of the window.
You may evaluate the accuracy of the new calibration constants by
comparing the known viscosity for the standard with the calculated
viscosity for each standard selected for the new calibration. This
difference is displayed as a percentage in the last column (
% Diff ) of
the updated sample list box.
Comparing current/new data The Show Calibration Data button is a toggle that will permit you to
compare current and new calibration data and constant information. Press
the
Show Calibration Data button once to view the current calibration
information. Note that the button name will change to Display Sample
Data . Press the button again to display the new calibration parameters.
When/if you are satisfied with calculation results, click on Update Tube
to save calibration values for the current configuration.