Teledyne 200AH 用户手册

 

 

This section of the manual contains information on diagnosing and repairing instrument 
performance problems. It contains information on how to use and interpret TEST and 
DIAGNOSTIC data as well as WARNING messages the instrument generates. There is 
information on how to troubleshoot the instrument subsystems. Finally there is information on 
how to perform adjustments such as DAC calibration procedures. 

This manual provides troubleshooting procedures that address problems to the board level. For 
component level troubleshooting, consult the schematics for the appropriate board in  
Appendix A-1. 

 

1.  Think of the analyzer as three sections: 

 
Section 1:  Pneumatics - Over 50% of all analyzer problems are traced to leaks in the pump, 
sample filter, instrument internal pneumatics, calibrator or external sample handling 
equipment. Suspect a leak first, and check Section 9.2. 
 
Section 2:  Electronics - data processing section. This can be readily checked out using 
Electric Test in Section 9.1.3.2. 
 
Section 3:  Optics - Optical section consisting of PMT, HVPS, Preamp, and signal 
processing. Refer to Section 9.1.3.3 on use of Optical Test. 

2.  Is the fault light on? If it stays on after your clear the warning messages, see Section 9.1.2 

3.  Compare the TEST functions to the factory values in Table 2-1, this will often provide 

important clues as to the problem. If discrepancies are noted see Table 9-1.