On/Off Status; Vacuum Service Switch - Thermo Scientific TSQ Series Hardware Manual

3
System Shutdown, Startup, and Reset
Turning Off Selected Mass Spectrometer Components
• Place the Electronics service switch in the Service Mode position. The Electronics service
• Place the Vacuum service switch on the TSQ Quantum Access in the Service Mode position.
• Place the Main Power circuit breaker switch in the Off (O) position. Placing the Main Power
Table 2
Table 2. On/Off status of mass spectrometer components, voltages, and gas flows (Sheet 1 of 2)
Mass spectrometer component
Electron multiplier
Conversion dynode
Mass analyzer RF voltage
Mass analyzer dc offset voltage
Q00 and Q0 ion optics RF voltage
Q00 and Q0 ion optics dc offset
voltage
Tube lens or S-lens
Ion transfer tube heater
Ion transfer tube dc offset
APCI corona discharge needle
APCI vaporizer
ESI needle
Sheath gas
Auxiliary gas
Argon collision gas
Vent valve
Turbomolecular pump
Forepump
Vent Delay PCB
Embedded computer
Turbomolecular pump controller
54 TSQ Series Hardware Manual
switch turns off all components in the mass spectrometer other than the +24 V power supply,
forepump, turbomolecular pump, Vent Delay PCB, and fans.
The Vacuum service switch turns off all vacuum system components, including the +24 V
power supply, forepump, turbomolecular pump, Vent Delay PCB, and fans.
circuit breaker switch in the Off (O) position removes all power to the mass spectrometer,
including the vacuum system.
summarizes the on/off status of mass spectrometer components, voltages, and gas flows.
Standby
Off
Off
Off
Off
Off
Off
On
On
On
Off
Off
Off
Off
Off
Off
Closed
On
On
On
On
On
Electronics
Off
service
switch in
Service Mode
position
Off Off
Off Off
Off Off
Off Off
Off Off
Off Off
Off Off
Off Off
Off Off
Off Off
Off Off
Off Off
Off Off
Off Off
Off Off
Closed Closed
On On
On On
On On
On Off
On On
Vacuum service MS
switch (TSQ Main Power
Quantum Access) circuit breaker
in Service Mode switch in Off
position position
Off Off
Off Off
Off Off
Off Off
Off Off
Off Off
Off Off
Off Off
Off Off
Off Off
Off Off
Off Off
Off Off
Off Off
Off Off
Open Open
(after 2 to 4 min) (after 2 to 4 min)
Off Off
Off Off
Off Off
On Off
Off Off
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