How the TGA 8000 Autosampler Works . 87
How the TGA 8000 Autosampler Works
The TGA 8000 autosampler is computer controlled and fully automated. The sample tray can
hold up to 48 crucibles. Carousel positions are labeled 1 through 48 for easy sample
identification. New samples can be added to the carousel to replace samples that have been
analyzed by simply pausing the play list and manually controlling the autosampler through
the Autosampler Control dialog box. Once the autosampler is in the Safe position (all the
way to the right), you can lift off the sample ring that holds the crucibles.
You can use the stainless steel sample pan liners (P/N N5376749) in the crucibles to keep
them from getting dirty. Simply throw away the liner after use.
Autosampler Work Cycle
When you begin a sample run by starting a play list, the autosampler performs a typical work
cycle, which includes the following steps:
NOTE: When running samples with an autosampler, the status of the Antistatic Device should be
Auto Enabled and the Upper Fan should be Off.
1.
Before the start of the run, the furnace is in the Cooling position or the Lowered
position. The autosampler is in the Safe position.
2.
Start the play list. Your play list may have an explicit Load Sample command or, if
using a Sample Group, the entry Sample List implies Load Sample. Upon reaching
this line in the list, the autosampler tray turns to position the selected tray location
properly.
3.
The autosampler swings to the Load position.
4.
The tray turns so that the crucible handle engages the hook in the hangdown wire.
5.
The antistatic device turns on.
6.
The furnace rises almost all the way up. It stays at that position for about 15
seconds while the antistatic device deionizes the joint area.
7.
The antistatic device turns off and the furnace finishes traveling up to engage the
joint.
8.
The method runs.
9.
Your play list may contain an explicit Return Sample command. If using a Sample
Group, the Sample List entry has an implied Return Sample command.
10.
At the end of the run, the antistatic device comes back on as the furnace goes to the
Lowered position.
11.
The antistatic device turns off as the furnace goes to the Cooling position.
12.
The autosampler swings to the Load position with the selected location underneath
the crucible.
13.
The tray rises so the crucible goes into the selected location.
14.
The tray turns so the crucible hook comes off of the hangdown wire.
Содержание TGA 8000
Страница 1: ...TGA 8000 Installation and Hardware Guide THERMAL ANALYSIS...
Страница 5: ...5 Safety and Regulatory Information...
Страница 19: ...19 Prepare the Laboratory...
Страница 25: ...25 Installing the TGA 8000...
Страница 55: ...55 TGA 8000 Hardware Maintenance...
Страница 68: ...68 TGA 8000 Installation and Hardware Guide...
Страница 85: ...85 TGA 8000 Autosampler...
