CRS 202900 Betriebshandbuch - Seite 9

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Operation and Maintenance

The Advanced Filter System has two visual indicators, one for oxygen and one for moisture. When the
green indicator changes to gray, indicating oxygen contamination, or the blue indicator changes to light
brown, indicating water contamination, the filter cartridge should be changed.
To exchange the spent cartridge, first turn off the gas supply upstream of the filter. Shut down any
instruments downstream of the filter. The check valves in the manifold will interrupt the gas supply when
the cartridge is removed and protect the gas lines from the atmosphere.
Unscrew the clamping screw. This pushes the cartridge off the manifold spools. Only after the screw is
completely disengaged is it possible to remove the filter from the manifold.
Mount the replacement cartridge as instructed in the section "Setup".
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CRS Advanced Filter System