BYK CAP 1000+ - Appendix B: Cone Calibration Procedure

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Appendix B
CONE CALIBRATION
A special feature of the CAP Series Viscometers allows the user to perform a cone
calibrationusingViscosityStandardFluids.Thiseldcalibrationwillaccommodate
any wear on the tip of the cone which may result from contact with the plate.
NOTE: A cone calibration should be performed when: 1) using a new cone for
thersttime,2)switchingbetweentwoconesofthesamenumberand3)
vericationofcalibrationprovidesdataoutsideoftheacceptablerange.
RefertoAppendixA(TableA1)andchoosethecalibrationuidforthespindlebeing
calibrated.
1. Turn on the CAP1000+ Viscometer.
2. Attach solvent trap to coupling shaft.
3. Attach spindle.
4. Place appropriate amount of sample (Refer to Appendix A (Table A1)) onto the
center of the Viscometer plate directly below the spindle.
5. Pull down the handle, locking it into the lowest position, placing the spindle in
contact with the plate.
6. Lower the solvent trap.
NOTE: The solvent trap must be utilized when calibrating to ensure proper
temperature control.
7. Select the spindle to be calibrated by using the SPINDLE key.
8. Select YES for CALIBRATE and press ENTER.
9. Enter the appropriate values for temperature (°C) and viscosity (cP) prompted by
the screen.
NOTE: Viscosity values are always entered in units of CENTIPOISE (cP) no matter
what units have been selected as unit of measure for normal operation.
100cP=1P;1cP=1mPa•s;1000cP=1Pa•s
NOTE: TheViscometertemperaturecontrolmustbeidenticaltothespecied
temperature for the viscosity standard when executing the calibration.
Normally calibration will be at 25°C for “L” Series CAP Viscometers and
60°C for “H” Series CAP Viscometers.
10.Allowatleast30minutesforthermalequilibriumoftheplate,calibrationuidand
spindle.
11. Press the RUN key to start the calibration.
NOTE: The calibration process may be cancelled at any time prior to pressing RUN
to calibrate, by pressing the ESCAPE key.
When calibration is complete, spindle rotation will stop and the “CALIBRATION
COMPLETE” screen is displayed. Press ENTER to continue.