Teledyne t320u Manual Do Utilizador

Teledyne API – Model T300/T300M CO Analyzer 

Troubleshooting and Service 

This contains procedures that might need to be performed on rare occasions when a 
major component of the analyzer requires repair or replacement. 

12.6.1. REPAIRING SAMPLE FLOW CONTROL ASSEMBLY 

The critical flow orifice is housed in the flow control assembly (Teledyne API P/N 
001760400) located on the top of the optical bench.  A sintered filter protects the jewel 
orifice so it is unusual for the orifice to need replacing, but if it does, or the filter needs 
replacement please use the following procedure (see the Spare Parts list in Appendix B 
for part numbers and kits): 

1.  Turn off power to the analyzer. 
2.  Locate the assembly attached to the sample pump.  See Figure 3-6. 
3.  Disconnect the pneumatic connection from the flow assembly and the assembly 

from the pump. 

4.  Remove the fitting and the components as shown in the exploded view below.   
5.  Replace the o-rings (P/N OR0000001) and the sintered filter (P/N FL0000001). 
6.  If replacing the critical flow orifice itself (P/N 000941000), make sure that the side 

with the colored window (usually red) is facing upstream to the flow gas flow. 

7.  Apply new Teflon

®

 tape to the male connector threads. 

8.  Re-assemble in reverse order.   
9.  After reconnecting the power and pneumatic lines, flow check the instrument as 

described in Section 11.3.4. 

 

 

06864B DCN6314