Discovery TGA™ Getting Started Guide
Page 61
3
Reposition the bail/pan on the sample tray in its original pan position; this may be done with the tray on
or off the instrument. The tab on the bail should align with the groove in the tray so that the sample pan
can be picked up by the sample hang-down wire. Check that the bail wire is perpendicular (90°) to the
bail base. This avoids failing to connect with the hang-down wire hook or interference with the punch
during the pan punching process.
4
Replace the sample tray on the Autosampler, if removed.
Starting an Experiment
Before you start the experiment, ensure that the Discovery TGA is connected with the controller and you
have entered all necessary information through the instrument control software.
Start the experiment by selecting
Start
on the instrument control software or touching the
START
button
on the instrument user interface. When you start the instrument, the system automatically loads the sample
pan and closes the furnace if necessary, and then runs the experiment to completion.
If multiple runs are in the sequence, the procedure repeats for the next run until the run sequence com-
pletes.
Stopping an Experiment
If you need to discontinue the experiment, you can stop it at any point by selecting
Stop
through the
instrument control software or by touching the
STOP
button on instrument user interface.
NOTE
“Shutting Down the Discovery TGA” on page 55
for information on shutting down the
instrument.
Removing or Reinstalling a Wire-wound or EGA Furnace
To remove or reinstall the furnace, you will have to remove the furnace arm from its connection inside the
slot on the front of the instrument cabinet.
Furnace Removal
To remove the Wire-wound or EGA furnace use the following procedure.
1
Press the
FURNACE
button on the user interface to open the furnace completely.
2
Locate the two mounting screws on each side of the furnace arm connection, found in the slot on the
front of the instrument. Using the ball driver supplied in your TGA Accessory Kit, loosen these four
screws no more than one full turn. To reach the upper left mounting screw, insert the ball driver between
the water and air connections on the left side of the furnace housing.
3
Unplug and remove the furnace arm/base from the instrument cabinet.
4
Unplug the
AIR COOL
line from the bottom of the furnace arm/base and the purge line from the side
of the furnace.
NOTE
: When you remove the
AIR COOL
line, do not let it slip back into the instrument cabinet.
Place a drip pan to the left of the instrument to catch the coolant that will leak from the hose connections
when the furnace is removed.
