12
5.4 Preliminary test
Leave temperature unit (Celsius), measurement unit (g/cm
3
) and mode (Field) as initial value.
Sample in pure water using the syringe.
•
After the measuring cell is filled with sample liquid,
make sure there is no air bubble in the cell. Even a
small bubble would deviate the results. If any
bubbles are found, repeat sampling from the
beginning.
•
Always use the supplied sampling nozzle.
Example:
⇐
Density at current temperature
The display changes as above, and after confirming it is in the automatic stability sense mode, press
[Meas.] key. When the display density is stabilized, the value will automatically change reversed as
shown below. Read the data at this point as well as the temperature degree.
Example:
⇐
The reading changes to reverse display when the value is stabilized.
Look up to the pure water density table (appendix 1). If the results agree within
±
0.001g/cm3, you can
go for sample measurement.
Note!
If the results and theoretical value differ more than
±
0.001g/cm
3
,
recalibrate the measuring cell.
