Teledyne 9110T Changing the External Scrubber’s DFU Filter, Zero Air Scrubber Assembly

Models: 9110T

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Model 9110T NOx Analyzer

Instrument Maintenance

If necessary, squeeze the clips for a tighter grip on the cartridge.

Figure 11-4: Zero Air Scrubber Assembly

11.3.7.1. Changing the External Scrubber’s DFU Filter

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.

Teledyne Analytical Instruments

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Page 251
Image 251
Teledyne 9110T instruction manual Changing the External Scrubber’s DFU Filter, Zero Air Scrubber Assembly