Cannon-instrument TESC Instrukcja Użytkownika Pobierz pdf (Strona 29)

TESC Operator's Manual, Rev 1.0

CANNON® Calibrating the TESC System

e. In the Parameter Menus, open EZ-ZONE PM > Setup > Analog Input. The

Calibration Offset is shown in the display window.

10. When the DV2T test completes, save the test data from the DV2T to a CSV file on a USB

drive and transfer it to the PC. On the PC, use a spreadsheet to open the CSV file. In the

sample information, add the sample ID.

Note:

Because the TESC System is calibrated during manufacturing,

only small adjustments of ± .1 °C should be necessary to fine tune the

temperature setting.

If desired, the actual temperature of the sample may be determined

using a viscosity calculation tool, such as VISDISK®.

  =  +



  

 × 10



Where:

Rate of viscosity response to temperature change:

600 mPa(s) per 0.1 °C for N27C at –40 °C

2200 mPa(s) per 0.1 °C for N480B at –26 °C

11. Using the data in the spreadsheet, compare the measured viscosity at the highest torque

reading to the calibrated viscosity of the sample.

• If the measured viscosity is higher than the calibrated viscosity, then the

temperature of the sample is lower than the target temperature. Subtract 0.1 °C from

the value shown for the Calibration Offset and enter this new value into the

Watlow® configurator program. Continue to step 11.

• If the measured viscosity is lower than the calibrated viscosity, then the temperature

of the sample is higher than the target temperature. Add 0.1 °C to the value shown

for the Calibration Offset and enter this new value into the Calibration configurator

program. Continue to step 11.

• If the measured viscosity is within the tolerance range of the calibrated viscosity of

the sample, the temperature of the sample is correct. Calibration is complete, go to

step 16.

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Cannon-instrument TESC Instrukcja Użytkownika Strona 29