Teledyne Tablet Accessory T803 Manual De Usuario

Maintenance Schedule & Procedures 

Teledyne API T803 CO2/O2 Analyzer Operation Manual 

10.2. PREDICTIVE DIAGNOSTICS 

The Test Functions can be used to predict failures by looking at how their values 
change over time.  Initially it may be useful to compare the state of these Test 
Functions to the values recorded on the printed record of the final calibration 
performed on your instrument at the factory.  Table 10-3 can be used as a basis 
for taking action as these values change with time.  The internal data acquisition 
system (DAS) is a convenient way to record and track these changes.  Use 
APICOM to download and review this data from a remote location. 

  

CO

2

 Zero Cal 

O

2

 Zero Cal 

Increasing 

  Pneumatic Leaks – instrument & sample system 

Increasing > 1” 

  Pneumatic Leak between sample inlet and Sample Cell
  Change in sampling manifold 

Sample 

Decreasing > 1” 

  Dirty particulate filter 
  Pneumatic obstruction between sample inlet and 

sensor 

  Obstruction in sampling manifold 

Increasing 

 Pneumatic Leaks 
 Contaminated zero gas 

Zero Cal 

Decreasing 

 Contaminated zero gas 

Increasing 

  Pneumatic Leaks – instrument & sample system 
  Calibration system deteriorating 

Span Cal 

Decreasing 

  Calibration system deteriorating 

 

10.3. MAINTENANCE PROCEDURES 

The following procedures are to be performed periodically as part of the standard 
maintenance of the T803. 

10.3.1. REPLACING THE SAMPLE PARTICULATE FILTER 

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

07276B DCN6418