Cannon Instrument TESC - Manual (Page 30)

TESC Operator's Manual, Rev 1.0
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Calibrating the TESC System CANNON®
12. Load and run the 1 hour DV2T temperature calibration program:
a. From the DV2T Main Menu, select Load Test > Viscosity Tests > USB 1> Calibration
> CalibTemp1hr-dv2t.dvt .
b. Click Run .
13. Wait for the DV2T test to complete.
14. Repeat steps 8 through 14 as needed. Step 12 only needs to be performed one time.
15. Record the offset value. You will need to enter it into each TESC temperature control
program prior to running it.
16. Press the red EZ button on the Watlow® controller to halt the test. Set Watlow® to
+25.0 °C. When at temperature, raise viscometer.
17. Remove and clean spindle.
18. Remove and clean test tube.
Brookfield® DV2T temperature probe offset adjustment
Use the following procedure to adjust the probe offset.
Note: Generated reports saved or printed from the DV2T do not
indicate the offset.
1. Calibrate the Watlow® controller.
2. The temperature probe offset is the difference between the temperature displayed by the
DV2T and the temperature displayed by the Watlow® controller.
3. Enter the offset value in the appropriate screen on DV2T and assign an appropriate label,
such as “N27C at –40 °C.”
4. Record instrument Id, DV2T serial number, probe offset label, and offset value.