RADWAG MAX 60 Moisture Analyzer - Manual (Page 69)

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Press ENTER key to return to the
main window. The moisture
analyzer is ready to start testing
procedure with programmed drying
parameters.
The upper bar of the display
indicates name of the selected
drying program and its number from
the library of drying programs. On
the left side of the display there are
pictograms indicating pre-set values
of drying parameters (i.e. drying
mode, temperature, finish mode,
etc.).
The next steps of the drying process are the same as in case of drying process
using a shortened menu (see point 9.3. of this user manual).
12. SAMPLE PREPARATION FOR A DRYING PROCESS
This section of the user manual presents data on obtaining optimum
measurement results from drying a sample to be tested. It lists the principles of
selecting drying parameters in relation to a material to be tested.
12.1. Principles of humidity content determination in a moisture
analyzer
Measurement of moisture content in a tested sample is carried out by
determining loss of mass in a sample by its heating (humidity evaporation from
a sample).
RADWAG moisture analyzer comprises two components: a precision balance
and a drying chamber. Compared to standard moisture content determining
methods, the measurements with application of RADWAG moisture analyzer is
much quicker and does not require additional mathematical calculations (a
result of moisture content is previewed on an ongoing basis during product
testing process).
Independently on moisture content determining method, the measurement
accuracy is highly influenced by means of sample preparation and selection of
testing parameters, such as:
•
Sample size
•
Sample type
•
Drying temperature
•
Drying time
In practice, the measurement accuracy is not as important as the speed of
obtaining measurement result (control over technological process). Thus,