Torbal ATS120 - Manual (Page 20)

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Instruction Manual – ATS / BTS Moisture Analyzers
11.2. Setting trial parameters and performing trial-and-error analysis
1.
Press the MENU key, then use the arrow keys to select “Drying Settings” and press ENTER
2. Use the arrow keys to select parameters and input trail values based on the following
recommendations.
Drying Temperature: Organic substances: 80 - 120
0
C
Inorganic substances: 140 - 160 0 C
Mode: Time Mode
Calculation: m0-m/m0*100%
Samples quantity: 0
Sampling Interval: 1sec
Drying Time:
Estimate based on
physical properties of
the sample i.e. 20 to
30min for substances
high in moisture.
3.
Perform a trial analysis with the above recommended settings as well the Drying Chart feature enabled.
Warning: Never leave the analyzer unattended while performing trial analysis.
11.3. Interpreting the Trial Analysis, making adjustments, and finalizing the settings
Drying Time
can be derived by observerving the Drying Chart on the analyzer’s display while the trial analysis is
in progress. The sample is dried when the slope of the drying chart flattens. The actual drying time should be
defined with a reserve, taking into consideration differences in the weight of successive samples.
Drying temperature can be derived by carefully observing the sample inside of the drying chamber while the trial analysis
is in progress.
Through the chamber peek glass observer the sample to make sure it is not burning or discoloring.
If discoloration occurs or if the sample begins to produce smoke terminate the analysis by pressing STOP. Signs of
combustion indicate that the current temperature is too high. Lower the temperature and perform the analysis again using
a fresh sample.
If it is obvious that drying is taking too long and moisture in not evaporating quickly enough, terminate the drying,
increase the temperature, and perform analysis again using a fresh sample.