Brookfield DV2T Viscometer - Manual (Page 75)

Brookfield Engineering Labs., Inc. Page 75 Manual No. M13-167-B0614
Calibration Procedure for a Small Sample Adapter
Brookfield recommends a two step check. First, verify the calibration of the viscometer
using the standard viscometer spindles (LV #1-3, RV #2-6, HA #2-6 and HB #2-6 or
cone/plate spindles) as detailed in this appendix. Second, verify the calibration of the
viscometer using the Small Sample Adapter. The use of an accessory device may
increase the accuracy of measurement associated with the DV2T.
When a Small Sample Adapter is used, the water jacket is connected to the water bath
and the water is stabilized at the proper temperature:
1) Put the proper amount of viscosity standard fluid into the sample chamber. The
amount varies with each spindle/chamber combination (refer to the Small Sample
Adapter instruction manual).
2) Place the sample chamber into the water jacket.
3) Put the spindle into the test fluid and attach the extension link, coupling nut and
free hanging spindle (or directly attach the solid shaft spindle) to the DV2T.
4) Allow 30 minutes for the viscosity standard, sample chamber and spindle to
reach test temperature.
5) Measure the viscosity and record the Viscometer reading. Note: The spindle must
rotate at least five (5) times before readings are taken.
Calibration Procedure for a Thermosel System
Brookfield recommends a two step check. First verify the calibration of the viscometer
using the standard viscometer spindles (LV #1-3, RV #2-6, HA #2-6 and HB #2-6 or
cone/plate spindles) as detailed in this appendix. Second verify the calibration of the
viscometer using the Thermosel. The use of an accessory device may increase the
accuracy of measurement associated with the DV2T.
When a Thermosel System is used, the controller stabilizes the Thermo Container at
the test temperature.
1) Put the proper amount of HT viscosity standard fluid into the HT-2 sample
chamber. The amount varies with the spindle used (refer to the Thermosel
instruction manual).
2) Place the sample chamber into the Thermo Container.
3) Put the spindle into the test fluid and attach the extension link, coupling nut and
free hanging spindle (or directly attach the solid shaft spindle) to the DV2T.
4) Allow 30 minutes for the viscosity standard, sample chamber and spindle to
reach test temperature.
5) Measure the viscosity and record the Viscometer reading. Note: The spindle must
rotate at least five (5) times before readings are taken.
Calibration Procedure using UL or DIN Adapters
Brookfield recommends a two step check. First, verify the calibration of the viscometer
using the standard viscometer spindles (LV #1-3, RV #2-6, HA #2-6 and HB #2-6 or
cone/plate spindles) as detailed in this appendix. Second, verify the calibration of the
viscometer using the UL or DIN Adapters. The use of an accessory device may increase
the accuracy of measurement associated with the DV2T.