Cleaning The Burner Head - PerkinElmer aanalyst 200 User Manual

Cleaning the Burner Head

Quick cleaning procedure
1. Extinguish the flame, allow the burner head to cool, shut down the gases at source, and bleed
the gas supply lines.
2. Open the atomizer compartment door.
3. Remove the burner head.
4. Carefully work along and through the burner head slot with the cleaning tool provided. Do
not nick the edges of the slot.
NOTE: The cleaning tool resembles a strip of thin metal sheet. Do not use other tools to clean inside the
burner slot since they may have burrs that could nick the slot.
5. Rinse the burner head well with deionized water and make sure that all scrapings are removed
from inside and outside the burner head.
6. Blow the burner head dry with clean compressed air.
Wear safety glasses when doing this.
7. Reinstall the burner head.
8. Close the atomizer compartment door.
Complete cleaning procedure
If the quick cleaning procedure, above, fails to remove deposits or if you wish to clean the burner
head more thoroughly, see Cleaning the Burner Chamber on page 9-13.
Checking the slot width
Over time, the burner slot becomes wider due to abrasion. The level of abrasion depends on the
types of solutions you are aspirating. A burner slot that is too wide causes unstable flame
conditions and, in the worst case, may cause a flashback of the flame. For this reason you should
check the width of the burner slot at regular intervals.
A set of feeler gauges is required to check the slot width. The table below specifies the correct
slot width and the feeler gauge required for checking.
AAnalyst 200 User's Guide
9-19