Appendix B
B–36 TA I
NSTRUMENTS
TGA 2950
set point, and not so high as to cause percent/
minute overshoot, transitions will appear largely
the same from one heating rate to the next. A
word of caution, however: always keep in mind
that the background (baseline) rate of weight
change will be accelerated at higher maximum
heating rates. This will move the background
percent/minute closer to the control point you
have selected with the resolution setting. If
noise is present in the background percent/
minute, it may fool the control algorithm into
thinking a transition is starting and result in a
premature reduction in heating rate to avoid
predicted set point overshoot. In extreme cases,
heating rate cycling can occur, particularly at
high sensitivity settings. (See Figure B.13 on
page B-61) To cure this problem reduce maxi-
mum heating rate and/or sensitivity setting.
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