Teledyne T200 Operation Manual page 220

Instrument Maintenance
11.3.7.1. CHANGING THE EXTERNAL SCRUBBER'S DFU FILTER
218
Teledyne API – T200 NO/NO
Figure 11-4:
There is also a DFU filter on the inlet of the external zero air scrubber that is included in
several of the optional calibration valve packages.
To change this filter:
1. Disconnect the tube and fitting from one end and remove the filter from the scrubber
canister.
2. Insert a new filter and reattach the tubing.
3. Ensure that the small arrow embedded on the filter points in flow direction, i.e., to
analyzer.
Zero Air Scrubber Assembly
/NO Analyzer Operation Manual
2 X
06858E DCN7057