Date & Time; Identification; Measurement (Meas); Procedure For Proper Measurement - Mettler Toledo Densito 30PX Bedienungsanleitung

5.11 Date & Time
The settings for date and time can be edited here. The date is displayed in the
format year/month/day (e.g. 2003/03/04 for March 4, 2003). Both date and
time are included in the data transfer to a printer or computer.
5.12

Identification

An identification consisting of 10 letters and numbers (instrument name, user,
etc.) may be entered here. This identification will be included in the data transfer
to a printer or computer.
6

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.
METTLER TOLEDO Densito 30PX
Menu (menu) / Measurement (meas)
PTFE (polytetrafluorethylene)
Borosilicate glass
PPS (polyphenylene sulphide)
PP (polypropylene)
s):
•
13