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44
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
2
/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
2
1011
Viscosity
Density
Viscosity
2
Kinetic viscosity is obtained.
Viscosity
2
Kinetic viscosity
Summary of Contents for SV-100A
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