Teledyne 7320 - NDIR analyzer - Manual (Page 77)

Infrared Gas Analyzer Maintenance 5
5-5 Teledyne Analytical Instruments
Figure 5-3: Cell Assembly
WARNING: HAZARDOUS VOLTAGES EXIST ON CERTAIN
COMPONENTS INTERNALLY WHICH MAY PER-
SIST FOR A TIME EVEN AFTER THE POWER IS
TURNED OFF AND DISCONNECTED.
Figure 5-2: Cell Assembly
5.6 Troubleshooting
5.7 General
This section contains information on the assembly and the electronic sections
of the Model 7320 Infrared Analyzer. The sample-handling sections of the
system are statistically low failure items and only require the maintenance as
pertinent to sample system operation (plugging, flowrates, leaks, etc.). Flow
system “failures” are usually of the nature that are easily resolved by
personnel familiar with basic mechanics of the Model 7320 flow system or
sample system.
The electronic sections are more complex, requiring the assistance of
personnel trained in electronics in the event of failure. The electronics
sections of the analyzers include advanced solid-state and digital circuitry
which requires a thorough understanding of circuit theory and
troubleshooting techniques.