3
System Shutdown, Startup, and Reset
Starting Up the System after a Complete Shutdown
56 TSQ Quantum XLS Series User Guide Thermo Scientific
Figure 32. Front panel LEDs of the TSQ Quantum XLS mass spectrometer
If you have an autosampler, go to Starting Up the Autosampler. If you do not have an
autosampler, go to Setting Up Conditions for Operation.
Starting Up the Autosampler
To start the autosampler, place the main power switch on the autosampler in the On position.
If necessary, configure the autosampler.
For procedures for placing sample vials, preparing solvent and waste bottles, installing
syringes, and so on, refer to the manual that came with the autosampler.
Setting Up Conditions for Operation
Y To set up your TSQ Quantum XLS Series mass spectrometer for operation
1. Before you begin data acquisition with your TSQ Quantum XLS Series system, allow the
system to pump down for at least one hour. Operation of the system with excessive air
and water in the vacuum manifold can cause reduced sensitivity, tuning problems, and
reduced lifetime of the electron multiplier.
2. Ensure that the argon pressure is within the operational limits (argon: 135 ±70 kPa
[20 ±10 psig]).
3. In the TSQ EZ Tune window, choose View > Instrument Status. Look at the Status
view. Check that the pressure measured by the ion gauge is below about 3 × 10
–
6
Torr
with the collision gas turned off.
Communication
Vacuum
Power
System
Scan
Note Air in the argon line must be purged or given sufficient time to be purged for
normal mass spectrometer performance.
Note You do not need to calibrate and tune the mass spectrometer each time you
restart the TSQ Quantum XLS Series system. To tune and calibrate the mass
spectrometer, see Chapter 4, “Tuning and Calibrating.”
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