OZONE ANALYZER BMT 965 Manual, Rev. 01/2024
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37
14 Maintenance
Maintenance is limited to a regular check of the sample gas input filter. The pure white material
easily displays any dirt (except if it is white). A tool is provided to open the filter holder.
In case the filter insert has been found to be dirty, it should be replaced (spares are supplied). It is
in the responsibility of the user to define the interval of this check, which of course depends on
the properties of the complete ozone system. It is a good idea to also observe the cuvette dirty
value during evaluation.
In case of excessive dirt (e.g., Dirty Warning or Dirty Alarm as described on page 33), the cuvette
should be cleaned. We recommend to send in the analyser to the manufacturer or representatives
(see chapter Troubleshooting).
Caution: The cuvette must not be flushed with fluids, namely water, for cleaning, as this could
damage the pressure sensor.
The UV lamp is the only part of the instrument which undergoes wear. Life expectancy of the lamp
is several years. When Lamp Low Warning is activated (see page 32) replacement of the lamp
should be planned for the next 4 to 8 weeks. Replacement by the user is possible but we do not
recommend it. The instrument should rather be sent back to us for replacement of the UV lamp
and for recalibration with the new lamp.
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