Daily Operation
'JOOJHBO-52
_______________________________________________ Things to Do After Operating the LTQ
_______________________ Finnigan LTQ Hardware Manual _____________________
3-11
5IFSNP
&-&$530/$03103"5*0/
ii. Carefully align the gas inlet on the ion sweep cone with the sweep
gas supply port in the API cone seal. Firmly press the ion sweep
cone into position.
iii. If necessary to achieve a proper ion sweep cone installation, you
might adjust the set screws around the perimeter of the ion sweep
cone.
f.
Reinstall the Ion Max ion source as described in the topic
Reinstalling the Ion Max Ion Source on page 4-19.
Go on to the next topic: Purging the Oil in the Rotary-Vane Pump.
Purging the Oil in the Rotary-Vane Pump
You need to purge (decontaminate) the oil in the rotary-vane pump on a daily
basis to remove water and other dissolved chemicals from the pump oil. Water
and other chemicals in the rotary-vane pump can cause corrosion and
decrease the lifetime of the pump. A good time to purge the oil is at the end of
the working day after you flush the API probe, ion sweep cone, and ion
transfer capillary.
To purge the oil in the rotary-vane pump, proceed as follows:
1. Turn off the flow of liquid from the LC (or other sample introduction
device) to the API source. To turn off the flow of liquid from the LC to the
API source, do the following:
a.
Choose
Start > Programs > Xcalibur > LTQ Tune
to open the
LTQ Tune Plus window.
Figure 3-2. Ion sweep cone, showing the gas inlet
Gas
Inlet
