HPQ2-IP SP101009.102 – 10 October 2012
MKS Instruments, Spectra Products
33
7.12 Cleaning the Source
The ion source may be cleaned as a complete assembly as described below.
Equipment required:
Isopropyl alcohol
Ultra-sonic bath
Clean glass beaker
Drying oven or heat gun
Using an ultra-sonic bath can loosen some of the screws in the ion source carefully
examine any used isopropyl alcohol before throwing it away in case there are some
screws in the beaker.
1. Remove the ion source from the analyser as described on Page 33.
2. Place the ion source in the beaker and fill with sufficient isopropyl alcohol (ipa) to
fully immerse the ion source. Place in the ultra-sonic bath for 10 to 15 minutes.
3. Replace the ipa and place in the ultra-sonic bath for a further 10-15 minutes.
4. Remove the ion source and rise with clean ipa and place in a drying cupboard for
at least an hour to dry off all ipa residue. If a drying cupboard is not available use a
heat gun to dry the ion source.
5. Check that all the screws in the ion source assembly are tight.
6. Re-fit the ion source by following the instructions on Page 35.
If after two washes there are still deposits on the ion source it should be returned to
an MKS service facility to be cleaned.