Brookfield DV-II+ Programmable Viscometer Manual de usuario descargar pdf (Pagina 54)

Brookfield Engineering Labs., Inc. Page 54 Manual No. M/97-164-F1102

Appendix E - Calibration Procedures

The accuracy of the DV-II+ is verified using viscosity standard fluids which are available from

Brookfield Engineering Laboratories or your local Brookfield 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 E1 (Silicone Oils) and Table E2 (Mineral Oils).

Container size: For Viscosity Standards < 30,000 cP, use a 600 ml Low Form Griffin Beaker

having a working volume of 500 ml.

For Viscosity Standards

≥ 30,000 cP, use the fluid container.

Inside Diameter: 3.25"(8.25cm)

Height: 4.75"(12.1cm)

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

Temperature: As stated on the fluid standard label: (

+/-) 0.1°C

Conditions: The DV-I+ 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 page 34 for

more information on the guard leg).

Normal 25°C Standard Fluids High Temperature Standard Fluids

Viscosity (cP) Viscosity (cP) 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 **25

°C, 93.3°C, 149°C

1,000 Refer to Brookfield catalog for

more information.

Table E1

MINERAL OIL VISCOSITY STANDARD FLUIDS

BEL Part No. Viscosity (cP) 25°C

B31 31

B210 210

B750 750

B1400 1,400

B2000 2,000

B11000 11,000

B20000 20,000

B80000 80,000

B200000 200,000

B420000 420,000

Table E2

1 2 ... 49 50 51 52 53 54 55 56 57 58 59 ... 74 75

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