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8-1 Notes on Viscosity Calibration (For all models)
Pay close attention to the liquid temperature at calibration. Be sure to enter the temperature
corrected viscosity value of the liquid at calibration. Even a standard viscosity fluid has a
viscosity change of -2%/°C to -10%/°C, and purified water, a viscosity change of -2%/°C, when
the room temperature changes.
The temperature of the standard viscosity fluid must be the same as the temperature of the
sensor plates and the temperature sensor. Allow the displayed temperature to stabilize before
calibration.
Be sure to adjust the sample surface to the center of the narrow part of the sensor plates.
Otherwise, a measurement error may occur.
In the calibration mode, the unit of viscosity for the SV-1A/1H/10A/10H is mPa
⋅
s, the unit of
viscosity for the SV-100A/100H is Pa
⋅
s. The unit of temperature is fixed to °C.
Influence caused by the sample cup
The viscometers have been calibrated with the following cups when shipped. When using
another cup, use that cup to measure viscosity only after calibrating with it.
SV-1A/SV-1H
Sample cup (Capacity: 2 mL)
SV-10A/SV-10H/SV-100A/SV-100H Sample cup (Capacity: 45 mL)
Note
Models SV-10A/SV-10H/SV-100A/SV-100H, have been calibrated with the protector
attached when shipped. Please note that the value, obtained when the viscometer is
calibrated without the protector, may be different from that upon shipment.
If water other than purified water (such as pressurized tap water) is used for simplified
calibration, or the water temperature is different from the ambient temperature, bubbles may
accumulate on the sensor plates and cause a measurement error. Allow the sample to adjust
to the ambient temperature and remove any accumulated bubbles before calibration.
If the measured viscosity of the water is 3.00 mPa
⋅
s or greater, it is contaminated and
simplified calibration can not be performed using it. Replace the water.
Summary of Contents for SV-100A
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