Analytik Jena PlasmaQuant PQ 9000, Operating Manual

Page: 47 / 76

Maintenance and care
PlasmaQuant PQ 9000 Edition 05/2014 45
8.1 Maintenance intervals
The following maintenance tasks must be performed:
Maintenance item Action Reason, frequency
Base device
Wash solution bottle Check filling level,
replenish
Daily
Waste bottle Check filling level, empty Daily
Sampling
compartment
Remove contamination Daily
Check pump hoses for
flexibility and tightness
Daily,
replace hoses if necessary
Plasma
compartment
Replace windows for beam
entry and exit in the plasma
compartment
− If streaks and burnt-in residues are
visible
− If losses in energy occur
Rear air filter Check for soiling Monthly,
replace if necessary
Gas connectors Check for leaks − After renewing connections
− If the manometer indicates a
distinct pressure loss
− If the plasma fails to ignite or is
accompanied by loud noise
Torch and nebulizer
Torch Remove and clean
− If visible soiling can be seen
(particularly a metallic film or if the
quartz glass appears very milky and
white)
Intervals may vary largely in dependence
on the investigated sample material
(from daily to annually).
Nebulizer Clean
− If reproducibility deteriorates
significantly or a drift is observed
− In dependence on the investigated
sample material (e.g., samples with
a high salt content or with
suspended sediments)
Inside glass body of
the holder
Replace − If cracked
Automatic sampler
Surfaces Clean Daily
Collection tray Remove residue liquid from
tray
If there are residues in the tray
Sample hose/
cannulae
Check that they are free of
sediment build-up
Daily
Sediments can falsify measurement
results
Wash cup Clean Weekly
Pump hose Check for flexibility and
tightness
Daily,
replace if necessary