3
System Shutdown, Startup, and Reset
Turning Off Selected Mass Spectrometer Components
Thermo Scientific
TSQ Quantum XLS and TSQ Quantum GC User Guide
61
Table 4.
On/Off status of mass spectrometer components and voltages (Sheet 1 of 2)
Mass spectrometer component
Standby
Off
Electronics
service switch in
Service Mode
position
Vacuum service
switch in
Service Mode
position
MS Main power
circuit breaker
switch in Off
position
Electron multiplier
Off
Off
Off
Off
Off
Conversion dynode
Off
Off
Off
Off
Off
Mass analyzer rf voltage
Off
Off
Off
Off
Off
Mass analyzer dc offset voltage
Off
Off
Off
Off
Off
Q0 ion optics rf voltage
Off
Off
Off
Off
Off
Q0 ion optics dc offset voltage
Off
Off
Off
Off
Off
Ion source filament
Off
Off
Off
Off
Off
Ion source heater
On
On
Off
Off
Off
Ion source lenses
Off
Off
Off
Off
Off
Argon collision gas
Off
Off
Off
Off
Off
Vent valve
Closed
Closed
Closed
Open
(after 2 to 4 min)
Open
(after 2 to 4 min)
Turbomolecular pump
On
On
On
Off
Off
Forepump
On
On
On
Off
Off
Vent Delay PCB
On
On
On
On
Off
Embedded computer
On
On
Off
On
Off
Turbomolecular pump controller
On
On
On
Off
Off
Power supply, electron multiplier
and conversion dynode
Off
Off
Off
On
Off
Power supply, 8 kV
Off
Off
Off
On
Off
PS1 power supply, +24 V
On
On
On
Off
Off
PS2 power supply, +5, ±15,
±24 V dc
On
On
Off
Off
Off
PS3 power supply, +36,
-28 V dc
On
On
Off
Off
Off
Fan, turbomolecular pump
On
On
On
Off
Off
Fan, above manifold
On
On
On
Off
Off
Fan, center wall
On
On
On
Off
Off
Convectron gauge, foreline
On
On
On
On
Off
Convectron gauge, collision cell
On
On
Off
On
Off