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3
Advanced Troubleshooting
Replacing Components of the Ion Source
222
TSQ 9000 Hardware Manual
Thermo Scientific
2. Click
Yes
to continue the shutdown process. The high voltages, heaters, and
turbomolecular pump power off. Once the turbomolecular pump reaches 50% speed, or
five minutes elapses, the foreline pump powers off and you may vent the system.
3. Reach around the left side to the back of the instrument and push down on the power
switch to power-off the instrument.
4. Open the front door of the TSQ 9000 mass spectrometer.
5. Open the front door of the instrument.
6. Twist the vent valve knob one and a half times in a counter-clockwise direction to open
the vent.
7. Wait five minutes for venting to complete.
Note
The amber vacuum light on the front of the instrument starts blinking rapidly,
indicating the mechanical pump has powered off after a five minute period with the
turbomolecular pump off (such as when the instrument is shut down), or due to a
sustained vacuum fault lasting five minutes. When the turbomolecular pump spins down
below 50% speed due to the shut down process, the vacuum light turns off.
Figure 216.
Venting the TSQ 9000 Mass Spectrometer
Vent Valve Knob
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.
Summary of Contents for TSQ 9000
Page 1: ...TSQ 9000 Mass Spectrometer Hardware Manual 1R120618 0003 Revision C December 2018 ...
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