Manual EDM 180
Revision 1.0 29.03.2010 Page 65/61
12 Maintenance and cleaning
It is recommended to annually execute following points!
12.1 Sample air duct inside the optical chamber of the spectrometer 187
Switch off the device. Demount sample pipe as well as the glass bottle and then blow the sample air duct
with oil-free and clean compressed air with an maximum pressure of 3Bars upwards down. NEVER
bottom-up!
With screwed bottle use max. 1bar for cleaning!
After cleaning rescrew the bottle accurately in order to avoid leaks.
12.2 Fly screen on the sample pipe 182
In order to not constrict the particles please make sure the fly screen is free from pollution. Should the fly
screen be polluted, please sparge it with compressed air.
Never pull something through the sampling pipe and never blow through with compressed
air!
12.3 Change dust filter
Once a year the BQ filter (dust filter) which contains the whole sucked in dust, should be changed. This is
be done at the annual inspection.
12.4 Internal rinsing air filter
In order to protect the laser optics from pollution and also for the self-test of the device, particle-free air is
being generated by an internal fine filter. This filter is only to be changed by trained service staff, however
the life expectancy even at continuous operation is several years. Should the message "CHECK NOZZLE
AND AIR INLET" appear more than once, although the sample inlet is free and having no over pressure,
this is a sign of a failure at the rinsing air supply. For this case please ask your local dealer or the
manufacturer.
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