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4.3
Measuring
▪
In order to avoid contamination and damage of the prism as well as sample carry-
over, clean the prism immediately after the measurement.
Make sure that the sample does not come in contact with the housing of the
refractometer. Any sample material on the housing should be removed
immediately.
Measuring samples
REQUIREMENT
▪
Switch on the device.
PROCEDURE
1. Pour about 0.4 ml distilled water onto the measuring prism.
The prism must be completely covered.
The sample must not contain any bubbles.
2. Close the lid of the device.
3. Wait for 5 seconds after pouring the water onto the prism.
4. Press the READ button once.
After 1 second, the measured value is displayed in the currently selected
✓
measurement scale.
To obtain the measured value of the same sample in the second measurement
scale change the scale. Afterwards measure the sample once more.
5. Carefully clean the measuring prism with a soft, dry cloth.
When cleaning, use a solvent suitable for the sample material for cleaning. For
details see
chapter 5.3 Recommended sample-specific
RESULT
The measurement has been carried out.
Instruction Manual DR201-95
|
Version 3.1 © A.KRÜSS Optronic 2022
agents.
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Page 16 of 30
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