TA Instruments TGA 2050 - Page 75

TA I NSTRUMENTS TGA 2050 3–15
Setting Up
Accessories
If your experiment requires external accessories,
ensure that they are turned on, and make any
necessary adjustments before you start your
experiment. Make sure that the system can
achieve the conditions of all segments in the
method.
This section describes how to use the following
accessories with the TGA 2050:
 Air cool option
 Purge gas
 TA Instruments Gas Switching Accessory.
The TGA can also be used with other acces-
sories, such as vacuum, FTIR, gas chromato-
graphs, mass spectrometers, and evolved gas
analyzers. Consult the appropriate local instru-
ment manufacturer for further information.
Using a
Purge Gas
You can control the sample atmosphere during
TGA experiments by connecting a purge gas to
the system. Purge gas is distributed separately
to two parts of the TGA: the furnace and the
balance chamber.
The balance purge maintains a positive pressure
in the balance chamber to prevent decomposi-
tion products from contaminating the sensitive
balance mechanism. The balance purge flows
from the balance chamber via two routes: down
Running an Experiment