Teledyne t320u Manuale Utente

Maintenance Schedule & Procedures 

Teledyne API – Model T300/T300M CO Analyzer 

The following procedures are to be performed periodically as part of the standard 
maintenance of the T300. 

11.3.1. REPLACING THE SAMPLE PARTICULATE FILTER 

The particulate filter should be inspected often for signs of plugging or contamination.  
We recommend that the filter and the wetted surfaces of the filter housing are handled as 
little as possible when you change the filter.  Do not touch any part of the housing, filter 
element, PTFE retaining ring, glass cover and the o-ring.   

To change the filter: 

1.  Turn OFF the analyzer to prevent drawing debris into the instrument. 
2.  Open the T300 Analyzer’s hinged front panel and unscrew the knurled retaining ring 

on the filter assembly.   

 

3.  Carefully remove the retaining ring, PTFE o-ring, glass filter cover and filter element. 
4.  Replace the filter, being careful that the element is fully seated and centered in the 

bottom of the holder.   

5.  Re-install the PTFE o-ring (with the notches up), the glass cover, then screw on the 

retaining ring and hand tighten.  Inspect the seal between the edge of filter and the 
o-ring to assure a proper seal. 

6.  Re-start the Analyzer. 

 

06864B DCN6314