Brookfield DV-I Prime Manual de usuario descargar pdf (Pagina 55)

Brookeld Engineering Laboratories, Inc. Page 55 Manual No. M/07-022-D0613

Appendix E - Calibration Check Procedures

For more help go to

www.brookeldengineering.com and download the video.

Brookeld’s accuracy statement for viscometers used with standard spindles is +/-1% of Full Scale

Range. When measuring viscosity with a specic spindle rotating at a dened speed, the maximum

viscosity that can be measured is dened as Full Scale Range. For digital viscometers this value is

easily determined by pressing the “AUTORANGE” key. The display will show the Full Scale Range

viscosity in cP or mPa.s and the torque value will show 100%. Multiply the Full Scale Range viscosity

by 1% to determine the accuracy of any future measurement made with that spindle/speed combination.

When using the following accessory devices with your viscometer, the accuracy is +/-2%. Dimensional

tolerances in the accessory device allow for increase from +/-1% to +/-2%.

• Small Sample Adapter

• Thermosel

• UL Adapter

• DIN Adapter

• Spiral Adapter

The accuracy of the DV-I PRIME is veried using viscosity standard uids, which are available from

Brookeld Engineering Laboratories or your local Brookeld agent. Viscosity standards are Newtonian,

and therefore, have the same viscosity regardless of spindle speed (or shear rate). Viscosity standards,

calibrated at 25°C, are shown in Table E-1 (Silicone Oils) and Table E-2 (Mineral Oils).

Container size: For Viscosity Standards < 30,000 cP, use a 600 mL Low Form Grifn Beaker

having a working volume of 500 mL.

Inside Diameter: 3.25”(8.25cm)

Height: 4.75”(12.1cm)

For Viscosity Standards ≥ 30,000 cP, use the uid container.

Note: Container may be larger, but may not be smaller.

Temperature: As stated on the uid standard label: (

+/-) 0.1°C

Conditions: The DV-I

PRIME should be set according to the operating instructions. The

water bath must be stabilized at test temperature. Viscometers with the letters

“LV” or “RV” in the model designation must have the guard leg attached,

see Appendix F for more information on the guard leg).

Normal 25ºC Standard Fluids

Viscosity (cP) Viscosity (cP)

High Temperature Standard Fluids

Three Viscosity/Temperatures**

5 5,000 HT-30,000

10 12,500 HT-60,000

50 30,000 HT-100,000

100 60,000

500 100,000 **25ºC, 93.3ºC, 149ºC

1,000 Refer to Brookeld catalog for more information

Table E-1

1 2 ... 50 51 52 53 54 55 56 57 58 59 60 ... 70 71

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Brookfield DV-I Prime Manual de usuario Pagina 55

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