How to shut down a Xevo TQ-S - WKB29694

OBJECTIVE or GOAL

Shut down a Xevo triple quad or single quad for a period of time.

ENVIRONMENT

• SQ Detector
• SQ Detector 2
• TQ Detector
• Xevo TQ MS
• Xevo TQD
• Xevo TQ-GC
• Xevo TQ-S
• Xevo TQ-S micro
• Xevo TQ-XS
• Xevo TQ Absolute

PROCEDURE

1. Put the Xevo or SQD in full Standby mode. To do this, go to the Tune page and select the green Operate button in the bottom-right corner of the tune page. It should then turn red.
2. Turn off all gasses.
3. Take a screen capture of the vacuum view to record the vacuum before venting.
   • To do this, go to the Tune page and select the red and green circle icon  that represents the vacuum gage.
   • Press CTRL+ALT+Print Screen or use the Windows Snipping Tool, paste into Word Pad, and save.
4. Vent the instrument. On the Tune page go to Vacuum > Vent from the menus.
5. Stop the flow on the LC or UPLC system. Turn of the lamps on the optical detectors (PDA, TUV, ELSD, etc). Remove samples from the sample compartment.
6. Once the system has vented, close MassLynx.
7. Power-off the Xevo or SQD using the power button on the front, upper-left corner of the instrument. (You may also choose to unplug the instrument after it has been powered off.
8. Power-off the LC, and then power-off the PC.

ADDITIONAL INFORMATION

If the Nitrogen source is a tank, Dewar or constant building supply such as an external Liquid N2 tank, we recommend that the the Nitrogen supply be left on at a pressure of 100 PSI. However, if the Nitrogen is supplied by a generator, it is understandable that the supply must be turned off. This is OK.

If you are following this article for a Xevo Tof/Qtof system, these instruments do not have a power button on the front. They can only be powered off using the electronics toggle switch on the back. In this case, leave the vacuum override (top) toggle switch in the UP position. Move the electronics (bottom) toggle switch to the down position. To move the toggle switch, you must pull it out slightly before it will toggle. It is designed such that you cannot just push it down or up. For more complete instructions please reference article "How do I power off my Xevo G2-XS Qtof"

See How to Start Up or pump down a Waters triple quad - WKB5462.