Brookfield DV3T Rheometer - Manual (Page 108)

Brookfield Engineering Labs., Inc. Page 108 Manual No. M13-2100
Calibration Procedure for a Small Sample Adapter
Brookfield recommends a two step check. First, verify the calibration of the rheometer using the
standard rheometer 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 rheometer using the Small Sample
Adapter. The use of an accessory device may increase the accuracy of measurement associated
with the DV3T.
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 DV3T.
4) Allow 30 minutes for the viscosity standard, sample chamber and spindle to reach test
temperature.
5) Measure the viscosity and record the Rheometer 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 rheometer using the
standard rheometer 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 rheometer using the Thermosel. The
use of an accessory device may increase the accuracy of measurement associated with the DV3T.
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 DV3T.
4) Allow 30 minutes for the viscosity standard, sample chamber and spindle to reach test
temperature.
5) Measure the viscosity and record the Rheometer 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 rheometer using the
standard rheometer 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 rheometer using the UL or DIN
Adapters. The use of an accessory device may increase the accuracy of measurement associated
with the DV3T.