Calibrating The Ccs; Calibration Procedure; Preparing/Updating The List Of Calibration Standards - Cannon CCS-2100 Instruction & Operation Manual

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CHAPTER

Calibration procedure

NOTES

Preparing/updating the list of calibration standards

CANNON

Calibration is essential for the proper operation of the CCS. The CCS is

calibrated before it is shipped to the customer; however, the CCS should

be recalibrated after installation. Frequency of recalibration is at the

discretion of the user.

The CCS calibration procedure ensures that the mathematical constants

used in calculation of viscosity from CCS measurements accurately

reflect the unique properties of the CCS rotor/stator mechanism.

During calibration, the software uses calibration standard data from CCS

tests of viscosity standards to perform the mathematical calculations

necessary to derive three calibration constants– b0, b1 and b2. Then the

program displays the new constants and recomputes a viscosity (in cSt)

for each of the calibration standards. The resulting viscosity calculation is

compared with the known viscosity of the standard and displayed on the

computer screen.

The software allows the operator to manually change the constants if

necessary to more closely match actual and calculated viscosities.

A calibration must be performed for each temperature at which samples

will be tested.

During installation of your VISCPRO

CANNON CL standards (see table, next page) is automatically loaded

into the VISCPRO

be necessary for you to enter the viscosity data from the standard bottles

into the VISCPRO

1. Click Configure from the VISCPRO

your CCS instrument.

2. Click CCS Calibration Standards from the Configure menu

options. The CCS Calibration Standards window will appear (see

graphic, following).

3. Assemble your calibration standards and input the viscosity data (in

mPa·s) from the standard bottles for each CL standard and tempera-

ture in the appropriate fields. If you have additional standards,

including user-defined standards, you can enter these by right-

CCS-2100 with VISCPRO

Version 2.0a— November, 2010; CANNON

2139 High Tech Road • State College, PA 16803 • USA