Preparing The Lc/Ms System For Maintenance - Thermo Scientific Surveyor MSQ Plus Hardware Manual

5
Routine and Preventive Maintenance
Maintaining the Source Block Assembly

Preparing the LC/MS System for Maintenance

80 Surveyor MSQ Plus Hardware Manual
To prepare your LC/MS system for maintenance
1. Turn off the flow from the LC pump.
2. If the cone wash is in use, turn it off.
3. Turn off the nitrogen gas, the ion optics, and the probe heater by doing one of the
following:
• In the Per Method Parameters table of the Tune window, click the Nitrogen Gas
On/Off toggle button to Off.
• Or open the Information View - Status page of Xcalibur. Right-click the Surveyor
MSQ listing to open a shortcut menu and choose Turn Device Off from the shortcut
menu.
4. If the Surveyor MSQ Plus MS detector is under vacuum, vent it. Right-click the
Server icon and choose Vent from the shortcut menu.
Venting the Surveyor MSQ Plus MS detector turns off the turbomolecular pump. It does
not turn off the Edwards forepump.
5. Wait 2 or more minutes before proceeding so that the system has time to vent.
CAUTION It takes approximately 2 minutes for the vacuum rotor to decelerate after
you choose Vent. To avoid damaging the vacuum pump, allow time for this
deceleration process before you turn off the power to the vacuum pump.
6. Turn off the Edwards forepump by doing one of the following:
• Turn off the power to the Surveyor MSQ Plus MS detector by placing its
MAINS ON/OFF switch to the Off position.
• Flip the power switch on the Edwards forepump to the Off position.
CAUTION Wait for the source block and probe heater to cool before performing any
maintenance.
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