34
Time 1 and 2
Each the Temperature 1 and 2 setting
can have a set period of time. Time 1 or
2 is the time during which the sample
will be dried at each temperature before
advancing to the next temperature.
Once the time for the last temperature
has elapsed, the test will terminate
unless a slope endpoint has been turned
On. If Temperature 2 is set, then at the
end of Time 1, the analyzer will ramp to
Temperature 2.
To set or change Time 1 or 2:
§
Press the
Time 1
or
Time 2
soft key to
display the Time 1 or Time 2 screen.
§
Use the numeric keys type in the desired
temperature, then press the
Enter
key.
The display will return to the Tempera-
ture 1 or 2 screen.
Slope
The slope function provides an auto-
matic endpoint for the test. The slope
function consists of two variables:
window of time and percent of initial
weight (%IW) change. During the test,
the weight change of the sample is con-
tinuously monitored within a moving
window of time. When the loss of
weight within the window is less than
the initial weight percentage set, the
slope criteria has been met. The final
weight is taken and calculation is
performed to end the test. This slope
is referred to as “actual slope” because
the endpoint is actually achieved.
Time
W
e
i
g
h
t
% of I.W.
Window of time
End of test (Endpoint)
W
