Torbal AGS100 250C PRO Manual - Manual (Page 25)

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To estimate the optimum drying parameters for an unknown sample, it is recommended you activate the Drying
Chart for the initial analysis. To enable the Drying Chart, follow the steps listed in Chapter 10.
After enabling the Drying Chart, set the following parameter values for the initial analysis:
Temperature: organic matters: 80 – 100°C, mineral matters: 140 – 160°C
Qualifying quantity: None (drying process is stopped after defined drying time)
Sampling interval: 1 second
Drying time: Set the time value long enough to dry the entire sample
By observing the progress of the drying chart, it is possible to estimate its course and determine the time needed
to dry the sample as well as analyze its moisture content.
The X axis of the chart represents 160 time intervals (for longer time intervals, the axis changes to 360, 720,
etc.).
The Y axis of the chart represents moisture values according to the chosen formula. It starts at 10% and shifts
automatically to 30%, 50%, etc.
NOTE: Remember to disable the Drying Chart before regular analysis.
The sample is dried when the slope of the drying chart begins to curve. The actual drying time should be
defined with a reserve, taking into consideration differences in the weight of successive samples. If the drying
time is too short, the results of moisture analysis will be inaccurate
.
Chapter 12: Setting Drying Parameters for Unknown Samples