3
System Shutdown, Startup, and Reset
Starting Up the System after a Complete Shutdown
58
TSQ Quantum XLS and TSQ Quantum GC User Guide
Thermo Scientific
Figure 30.
Front panel LEDs of the mass spectrometer
If you have an autosampler, go to
. If you do not have an
autosampler, go to
Setting Up Conditions for Operation
.
Starting Up the Autosampler
Y
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 or TSQ Quantum GC mass spectrometer for operation
1. Before you begin data acquisition with your TSQ Quantum XLS 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
(2
×
10
-5
Torr with H
2
carrier gas) 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 TSQ Quantum XLS mass spectrometer performance.
Note
You do not need to calibrate and tune the mass spectrometer each time you
restart the TSQ Quantum XLS or TSQ Quantum GC system. To tune and calibrate
the mass spectrometer, see
