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7.1
Adjusting the measuring cell with water
Settings in the menu
- Calib. Mode:
Adjusting
- Ensure that the measuring cell and sample tube are clean.
- Fill the clean measuring cell with the accompanying density standard or dis-
tilled water and ensure that no air bubbles are allowed to enter.
- Press and hold the
The instrument adjusts automatically (duration: approx. 1 minute). After adjust-
ment is completed, the measured deviation from the theoretical value and
Execute? (
) appears.
No
Measured deviation < 0.001
- Press the
or
key.
Execute? (
) appears.
Yes
- Press the ok/meas. key to confirm.
The adjustment is confirmed.
Measured deviation ≥ 0.001
- Check whether the measuring cell is dirty and if there are air bubbles.
Measuring cell is clean and contains no air bubbles:
- Press the
or
key.
Execute? (
) appears.
Yes
- Press the ok/meas. key.
Measuring cell is dirty and/or contains air bubbles:
- Execute? (
) is confirmed by pressing the ok/meas. button.
No
- Clean the cell if necessary and readjust.
7.2
Adjusting the measuring cell with a density standard
If a different density range is to be used, the measuring cell can be adjusted
using a density standard of your choice (e.g. toluene from the NIST, National
Institute of Standards and Technology) instead of distilled water.
Setting in the menu
- Calib. Mode:
- Enter the following density standard values into the menu:
Density
Density of the density standard (g/cm
Temp
Reference temperature
α
1000 Temperature-compensation coefficient of the density standard
x
Adjusting
- Ensure that the measuring cell and sample tube are clean.
- Fill the clean measuring cell with the density standard (e.g. Toluene) ensuring
that no bubbles are allowed to enter.
- Press and hold the
The instrument adjusts automatically (duration: approx. 1 minute). After adjust-
ment is completed, the measured deviation from the theoretical value and
Execute? (
) appears.
No
METTLER TOLEDO Densito 30P
off
key until
CALIB (Water)
on
3
key until
CALIB (Water)
Adjustment (cal)
appears in the display.
) at the reference temperature
1000
•
appears in the display.
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