MS Detector Maintenance
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_________________________________________________________ API Source Maintenance
_______________________ Finnigan LTQ Hardware Manual _____________________
4-19
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Reinstalling the Ion Source Interface
To reinstall the ion source interface proceed as follows:
1. Orient the ion source interface as shown if Figure 4-3.
2. Carefully insert the ion source interface into the vacuum manifold until it
seats in the Q00 ion guide.
Go on to the next topic: Reinstalling the Ion Max Ion Source.
Reinstalling the Ion Max Ion Source
Reinstall the Ion Max ion source as follows:
1. Carefully align the two guide pin holes on the rear of the source housing
with the ion source housing guide pins on the mass spectrometer, and
carefully press the ion source housing onto the ion source mount. See
Figure 4-8 and Figure 4-9.
a.
Rotate the ion source housing locking levers 90 degrees to lock the
ion source housing onto the ion source mount assembly.
2. Reinstall the source drain tube as follows:
a.
Connect the 1-in. ID Tygon tubing (P/N 00301-22922) to the ion
source housing drain fitting.
b. Attach the free end of the hose to a waste container. Ideally, the waste
container should be vented to a fume exhaust system.
Go on to the next topic: Starting Up the System.
Caution. Prevent solvent waste from backing up into the ion source and
mass spectrometer. Always ensure that liquid in the drain tube is able to
drain to a waste container and that the outlet of the drain tube is above the
level of liquid in the waste container.
Caution. Do not vent the Ion Max ion source drain tube (or any vent tubing
connected to the waste container) to the same fume exhaust system to which
you have connected the forepumps. The analyzer optics can become
contaminated if the Ion Max ion source drain tube and the (blue) forepump
exhaust tubing are connected to the same fume exhaust system.
Your laboratory must be equipped with at least two fume exhaust systems.
Route the (blue) forepump exhaust tubing to a dedicated fume exhaust
system. Route the drain tube from the Ion Max ion source to a waste
container. Vent the waste container to a dedicated fume exhaust system.
