Powering Off The Tsq 9000 Instrument - Thermo Scientific TSQ 9000 Hardware Manual

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2. Click the Yes button to continue the shutdown process. The heaters and the
turbomolecular pump power off. Then the foreline pump powers off.
3. Reach around the left side of the instrument and push down on the power switch to
power-off the instrument.
4. If you are using hydrogen, unscrew the hydrogen safety screw on the front door.
.
Figure 72. Powering Off the TSQ 9000 Instrument
Top Cover Panel
Hydrogen Safety Screws
5. Open the front door of the instrument.
6. Look behind the right side of the vacuum interlock shield and twist the vent valve knob
one and a half times in a counter-clockwise direction to open the vent.
7. Wait five minutes for the TSQ 9000 instrument to vent.
CAUTION - INSTRUMENT DAMAGE Do not proceed until the instrument is vented or
pieces of the column or ferrule might blow into the instrument. To ensure that the
instrument is vented, check how much the glass cover compresses the top cover o-ring in
the manifold. Once the o-ring surface touching the glass is about 1 mm, it is safe to open
the instrument and remove the column.
Vacuum Interlock Shield
Vent Valve Knob
1
Performing Routine Maintenance
Replacing the Electron Multiplier
Power Switch
Hydrogen Safety Screws
TSQ 9000 Hardware Manual 81