MXMF.Users.Handbook.V2.20.doc
LIT:MXUHB April 2003
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5. Automatic determination of heating temperature by RsTemp
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Advanced Usage/ B. Data Analysis/3.
RsTemp
RsTemp is a “Heating temperature determination software”, which determines optimum heating
temperature for measurement of moisture content using MX-50 and MF-50.
(OTS program: Optimal Temperature Search Program.)
The graph shown above displays an example in which Sodium Tartrate Dihydrate is measured with
RsTemp.
Horizontal axis represents elapsed time. Moisture content is measured according to automatic
increase of temperature every 5minutes, by 20C:
0-5min.: 100C, 5-10min.: 120c, 10-15min.:140C, 15-20min.: 160C, 20-25min.: 180C, 25-30min.: 200C.
Curve displayed in red shows change of moisture content, its value described with the vertical axis at the
left. Change of inclination could be seen in change of heating temperature.
Curve displayed in green
plots inclination of moisture content curve (red) by 1minute (%/min.), its value described with the vertical
axis at the right. In other words, the green curve shows the results of primary derivative of red curve
(function) by time (t)=dM (t)/dt. (temperature T remains unchanged between each heating temperature
zone).
Measured and calculated results are displayed in tables, below the graph. From the top column to
bottom:
Temperature
Heating temperature, automatically set.
Moisture (%)
Moisture content rate
Rate (%/min.)
Change of moisture content per 1min.
Judgment
shows results of determining optimum heating temperature for moisture content measurement, its
ranking given in alphabetical order (A,B,C,D,E,F).
Temperature judged A would be the temperature most
suitable for measurement of moisture content.
Moisture(%)
Time(min)