Cannon Instrument CAV-2000 - Manual (Page 17)

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CANNON ® Automatic Viscometer Models CAV-2100 and CAV-2200 with VISCPRO ® Instruction & Operation Manual
Version 2g — May, 2009; CANNON ® Instrument Company
2139 High Tech Road • State College, PA 16803 • USA
5. Verify that the tube serial number (Tube S/N) is correct. If it is not,
input the correct serial number in the text box. Each tube should have
a unique serial number!
6. Verify that the calibration values (C and E) for each bulb are avail-
able. If calibration data is not available, the default values are C=1
and E=0.
NOTE For first-time installation, make
certain that the factory-prepared
Configuration file has been
copied to the VISCPRO II
directory per instructions.
7. Compare calibration values
to any existing archives of
the calibration constants for
each bulb of Tube 1. The values, which cannot be edited from the
Tray Settings: Tube and Bath window, should be identical.
8. Write down the tube and bulb number for any incorrect values. We
will change these values later, using the Tube Settings: Calibration
window.
9. Click on the tube tab for Tube 2 and repeat steps 7-8 above. When
you are done, click OK to close the Tray Settings: Tube and Bath
window.
Manually changing tube calibration constants
If you discovered any errors in the values of the calibration constants (see
previous section), follow the directions in this section to manually correct
them using calibration information previously obtained for your unit. If
the calibration values are correct, instrument setup is complete.
NOTE This procedure for manually entering/changing calibration constants
bypasses the normal calibration procedure. To ensure the most accurate
viscosity readings, CANNON
® Instrument Company recommends that the
instrument be calibrated per the calibration procedure outlined in Chapter
3.
1. Click Configure from the VISCPRO ® menu bar.
2. Select your instrument from the list of available instruments.
3. Select Calibration from the list of configuration options. The
Calibration window will appear (see next page).
The Calibration window provides controls for calibrating each tube
associated with your instrument. You can click on the tube spin controls
to display current tube constants and valid check standard data
available for calibration of each tube.
Sample calibration data