Cleaning The Closed Source; Mass Filter - Ametek FlarePro User Manual

Cleaning the Enclosed Source
The enclosed source can be fully disassembled and cleansed of
deposits. However, only the removable ion volume will usually need
cleaning since this is where most sample ionization occurs. If the
entire source assembly is covered with deposits, it must be
disassembled and thoroughly cleaned. Refer to "Cleaning the
Resource" in this chapter for instructions on cleaning the Source.
However, it is often more advantageous to replace the source with a
new one. Contact AMETEK to order a new source.

Mass Filter

Deposits can form at the entrance to the mass filter rods when they
are operated at high pressures or over a long period of time.
•
Deposits can sometimes be seen as discolorations on the metal.
In some atmospheres, the rods might be coated with an invisible
layer that will keep the mass filter from operating properly. This
will result in a loss of sensitivity over the full range of the
spectrum. If the peaks disappear at high scan speeds, an
insulating layer may have developed on the surface of the rods.
•
Unless the nature of these discolorations can be identified
exactly, the only sure way of removing them is with a fine
abrasive.
•
The entire analyzer head assembly must be disassembled to
clean the rods.
The source cannot be disassembled without damaging the filament.
Be prepared to install a new filament if you disassemble the source
for cleaning or any other purpose.
AMETEK recommends returning the assembly to the factory
where the rods can be cleaned properly.
Maintenance and Troubleshooting | 4-15