Teledyne t320u Manuale Utente

 

253 

This contains a variety of methods for identifying the source of performance problems 
with the analyzer.  Also included in this are procedures that are used in repairing the 
instrument.   

 

Risk of electrical shock.  Some operations need to be carried out with the 

Exercise caution to avoid electrical shocks and electrostatic or mechanical 

Do not drop tools into the analyzer or leave those after your procedures.   
Do not shorten or touch electric connections with metallic tools while operating 

Use common sense when operating inside a running analyzer. 

The T300/T300M Carbon Monoxide Analyzer has been designed so that problems can 
be rapidly detected, evaluated and repaired.  During operation, it continuously performs 
diagnostic tests and provides the ability to evaluate its key operating parameters without 
disturbing monitoring operations. 

A systematic approach to troubleshooting will generally consist of the following five 
steps: 

1. Note 

any 

WARNING MESSAGES and take corrective action as necessary. 

2.  Examine the values of all TEST functions and compare them to factory values.  Note 

any major deviations from the factory values and take corrective action. 

3.  Use the internal electronic status LEDs to determine whether the electronic 

communication channels are operating properly.  

  Verify that the DC power supplies are operating properly by checking the 

voltage test points on the relay PCA. 

  Note that the analyzer’s DC power wiring is color-coded and these colors match 

the color of the corresponding test points on the relay PCA. 

06864B DCN6314