PerkinElmer AAnalyst 700, User Manual

Page: 86 / 194

System Maintenance
4 -4
0993-5255
Maintenance checklist
Maintenance checklists for the spectrometer system are presented below.
Maintenance checklists for the burner system are presented in the
Burner System
User’s Guide and for the graphite furnace, cooling system, and the furnace
autosampler in the Graphite Furnace User’s Guide.
General preventative maintenance procedures
Instrument
and work area For safety reasons, and to avoid contaminating new samples, you should
make sure that the instrument and the work area are always absolutely clean.
This is especially important when you are working with toxic substances and
when you are measuring trace amounts of any elements.
Wipe up spills immediately before they can cause further contamination or
damage.
Before you leave the instrument standing idle for any period of time, make
sure that all the components are clean.
Fume
ventilation Make sure that the main fume ventilation system functions correctly. Always
switch it on when you are using the instrument.
Environmen-
tal conditions Make sure that the environmental conditions are as described in Chapter 6,
Laboratory Requirements .
Acetylene
cylinder Always change to a new acetylene cylinder when the cylinder pressure falls
to below 600 kPa (6 bar; 87 psig) (
more information: page 4-14 ).
Spectrometer, maintenance checklist
External
surfaces Wipe over the surfaces with a lint-free cloth moistened with a dilute solution
of laboratory detergent.
The surfaces are resistant to dilute acids and alkalis, and to a lesser extent to
strong acids and alkalis and organic solvents.
Air filters Fit new filters yearly or more often in a dusty environment
(
procedure: page 4-10 ).
Atomizer
compartment
windows,
lamp end
windows
These windows do not normally require cleaning but if they become marked,
e.g., with fingerprints, you can clean them (
procedure: page 4-5 ).