Measurement (Meas); Procedure For Proper Measurement; Filling The Measuring Cell Using The Built-In Sample Pump - Mettler Toledo Densito 30P Bedienungsanleitung

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Measurement (meas)

6.1

Procedure for proper measurement

- Test the instrument for accuracy with the accompanying density standard or
distilled water before beginning any measurements (see Chapter 4.3).
- Ensure that the measuring cell is clean before each measurement. Insufficient
cleaning leads to remaining residue in the measuring cell and, therefore, in-
correct results.
- Check the sample for chemical resistance of the instrument materials.
• Sample tube:
• Measuring cell:
• Measuring cell holder:
• Sample pump:
- Ensure that the samples to be measured:
• are liquid enough to be sucked up or injected;
• can be dissolved with a solvent suitable for cleaning the measuring cell;
• are homogeneous (no emulsions or suspended particles, no air bubbles);
• have reached ambient temperature in the measuring cell.
For samples which are 20 °C colder than the ambient temperature:
- Heat the sample before beginning the sampling procedure.
Note
The unit display flashes when the difference in temperature between the sample
and the ambient air is greater than ± 5 °C.
For samples of high viscosity (> 2000 mPa
- Use an external syringe to fill the measuring cell.
6.2

Filling the measuring cell using the built-in sample pump

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- Ensure that the sample tube is in the sample.
- Press the fill button (12) slowly to fill the measuring cell.
- Ensure that there are no air bubbles in the measuring cell.
METTLER TOLEDO Densito 30P
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Measurement (meas)
PTFE (polytetrafluorethylene)
Borosilicate glass
PPS (polyphenylene sulphide)
PP (polypropylene)
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