Once the test has commenced, the door is automatically
locked for the entire period of the test and the extraction fan is automatically
started. Average test times range from 20 minutes for 6mm samples to
45 minutes for a 40mm sample. During the test, the integral dot matrix
display shows the asphalt sample weight to a display accuracy of 0.1g,
the present weight loss (both in grams and as a %), the rate of change
of sample weight and also the duration of the test. This unique display
gives an immediate indication of the progress of the test. The binder
content, percentage weight loss and calibration factor are measured
to 0.01%.
At the end of the test, which is signalled by an audible
alarm, the display changes to clearly show the binder content of the
sample, the door is unlocked and the results are printed. A choice of
printouts is available; either as a final end of test analysis or as
a continuous print-out showing results every minute including a final
end of test analysis. Additional printouts can be requested at the end
of the test for permanent records of test documentation.
The final printed test results include the furnace
set temperature, sample weight, final weight, weight loss in grams and
percentage weight loss, calibration factor, test run time, the time
and date.
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