Brookfield DV2T Viscometer User Manual

Page 75

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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.

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