Cannon Instrument CMRV-5000 - Manual (Page 39)

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CANNON ® Mini-Rotary Viscometer CMRV-5000 Instruction & Operation Manual
Version 1.0b—August, 2011; CANNON ® Instrument Company
2139 High Tech Road • State College, PA • 16803 • USA
Temperature °C field. Then click the Accept button to store the
temperature calibration offset to the current instrument configura-
tion.
6. Click the Calibrate button again to reset the timer and check the
calibration for that temperature. If the reference temperature varies
from the displayed temperature, repeat steps 5 & 6.
NOTE Make certain to use the "-" key when entering a temperature below 0°.
7. Repeat steps 4 through 6 for each desired calibration temperature.
Then click to exit the Temperature Probe Calibration window.
NOTES Make certain to SAVE the instrument following a successful calibration
(File/Save Instrument). You should also print an archive copy of calibra-
tion data (click Configure/MRV/Print Instrument Settings). A partial
calibration session may enable you to run some profiles as long as the
coldest calibration offset is 5° lower than the lowest profile temperature.
Manual restoration of voltage and offset data
If the VISCPRO database is corrupted, or if temperature calibration
data is lost for any other reason, voltage and temperature offset
values may be manually restored without recalibrating the instru-
ment. Existing data can be viewed by clicking Service/MRV/
Temperature Probe Calibration. When the user is logged into
VISCPRO as a Manager, the Temperature Probe Calibration
window displays additional security-protected controls for manual
adjustment/restoration of voltage and offset values obtained during
the probe calibration.
To manually adjust temperature offsets or voltage reference values,
log into the VISCPRO software as a Manager. Then open the probe
calibration window (Service/MRV/Temperature Probe Calibra-
tion). The Reference Supply Voltages and offset fields will now be
editable. Use your printed copy of the most current instrument
settings to determine appropriate values and input the values in the
indicated fields. Click OK when the values have been entered
correctly. Then click the Accept Manually Entered Offsets and
Voltages button.