Cannon Instrument CMRV-4500 - Manual (Page 69)

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CANNON ® Mini-Rotary Viscometer CMRV-4500 Instruction & Operation Manual
Version 1.1e—October, 2011 • CANNON ® Instrument Company
2139 High Tech Road • State College, PA • 16803 • USA
Adjusting temperature at the end of a profile
In the event that the CMRV instrument fails to attain the desired tempera-
ture at the conclusion of a profile, it is possible to adjust the instrument
temperature using the following procedure:
1. Wait until the profie is completed and the Temperature Correction
button is active.
2. Click in the Thermometer Temperature field and type the current
temperature (as indicated by your calibrated thermometer) to the
nearest 0.1°C in the
Thermometer Temperature field. Make certain
to use the minus (-) sign for subzero temperatures.
3. Click the Temperature Correction button to enter the temperature
reading.
NOTE If you input a temperature but do not click the Correction button, the input
temperature value will be stored in the database as the actual tempera-
ture for the test.
4. Wait for the instrument to stabilize at the new temperature for the
desired time period.
5. Continue with the Yield Stress and Viscosity test procedures.
NOTES The Temperature Correction button option is only active at the conclu-
sion of the temperature profile and prior to yield Stress or Viscosity
testing.
If the amount of the Final Temperature adjustment is greater than the
tolerances specified in the profile, the temperature probe and CMRV
cells should be recalibrated per the manual procedure.
If you do not enter a Thermometer Temperature, the final profile tem-
perature will be recorded as the actual temperature for the test(s).
Displaying a profile graph
Graphing the current profile To view a graph displaying time/temperature data from the current profile
during CMRV testing, click the
View Running Profile button from the
Instrument View window to view updated data from the current test in
graph format (X axis = time; Y axis = CMRV sample temperature). The
graph information is updated approximately every 10 minutes.
Graphing earlier profile data To view a graph of time/temperature data from a previous test (viscosity
or yield stress), just configure an analysis for the data (see chapters on
Analyses) and right-click anywhere inside the data window for the
analysis. Then click the
Display Temperature Graph popup menu
option.
Mouse-over display features After you have displayed the profile graph, you can move the mouse
cursor over any portion of the graph and the status bar at the bottom of
the
Profile Graph window will dispay the Time , Actual Temperature
and Target Temperature values for that point in the profile.