User`s guide

Operation
179
To shut down the ATD or TD:
1. Stop the running method by pressing the Stop button.
2. Wait until the sample tube has been unloaded to the
carousel or unload the tube from the TD.
3. Open the GC column door to cool down the column.
4. Switch off the power to the ATD/TD. This will stop the
flow of carrier gas to the transfer line and the column if
there is a direct connection.
5. Switch off any external accessories.
CAUTION
Before attempting to disconnect the TD/ATD from the GC,
read and strictly follow the next set of instructions to protect
the GC column and specific detectors.
The TD/ATD is the sole supplier of carrier gas to the GC!
a) Ensure that both the GC oven/detectors are cool.
b) If an MS is used, the GC-MS transfer line (if used) and the
Ion Source are cool. Filament is OFF.
c) All TD/ATD zones (trap, heated valve, transfer line) are
cool.