3
System Shutdown, Startup, and Reset
Shutting Down the System Completely
Thermo Scientific
TSQ Quantum XLS and TSQ Quantum GC User Guide
53
When you choose Control > Standby, the TSQ Quantum XLS or TSQ Quantum GC
system turns off the electron multiplier, the conversion dynode, the ion source filament
and lenses (but not the heater), and the mass analyzer and ion optics rf voltages. See
for the On/Off status of mass spectrometer components when the
mass spectrometer is in standby mode. The System LED on the front panel of the mass
spectrometer illuminates yellow when the system is in standby.
3. Leave the mass spectrometer power on.
4. Leave the GC power on with column flow.
5. Leave the autosampler power on.
6. Leave the data system power on.
Shutting Down the System Completely
Shut down the TSQ Quantum XLS or TSQ Quantum GC system completely only if it is to
be unused for an extended period or if it must be shut down for a maintenance or service
procedure. For a short period of time, such as overnight or over weekends, you can place the
system in standby mode. See
“Placing the System in Standby Mode.”
Y
To shut down the TSQ Quantum XLS or TSQ Quantum GC system completely
1. Cool the GC, transfer line, and ion source:
• GC oven
30
o
C
• Injector
off
• Transfer line
off
• Ion source
30
o
C
2. From the TSQ EZ Tune window, choose
Control > Standby
(or click the
On/Standby
button) to put the mass spectrometer in standby
.
3.
Place the electronics service switch, located on the right-side power panel, in the Service
Mode
.
Note
If you do not plan to change the column or perform maintenance on the gas
chromatograph, you do not have to lower the injector temperature.