A&D SV-10A Manual de instrucciones descargar pdf (Pagina 46)

8-2 Calibration Procedure (For all models)

Note

As to the correction value used for one-point calibration and two-point calibration, enter the

product of the absolute viscosity value and the density of the standard viscosity fluid. For

details, refer to "5-5-2 At Calibration".

After calibration, check the values, comparing the product described above with the

displayed value.

Kinetic viscosity = From this, Viscosity × Density =

Example 1: To calibrate the viscometer using a standard viscosity fluid:

Using the calculation sheet, calculate the value used for calibration.

(1) Check the kinetic viscosity and the viscosity at the temperature when the calibration is

performed.

Here, 1011 mm

/s for the kinetic viscosity and 889 mPa⋅s for the viscosity at 20°C

as an example.

(2) Substitute the values above to obtain the value for .

≅781

781 mPa⋅s is obtained as a correction value used for calibration.

Example 2: To calibrate using a standard viscosity fluid with known values of viscosity and density.

In this example, a standard viscosity fluid with a viscosity of 889 mPa⋅s at 20°C is

used.

(1) Check the viscosity value and the density of the standard viscosity fluid at the

temperature when the calibration is performed..

Here, 889 mPa⋅s for the viscosity and 0.878 for the density at 20°C as an example.

(2) Substitute the values above to obtain the value for Viscosity × Density.

889 × 0.878 ≅ 781

781 mPa⋅s is obtained as a correction value used for calibration.

889

1011

Viscosity

Density

Viscosity

Kinetic viscosity is obtained.

Viscosity

Kinetic viscosity

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A&D SV-10A Manual de instrucciones Pagina 46