Teledyne 3000ZA - Trace oxygen analyzer - Manual (Page 67)

Trace Oxygen Analyzer Maintenance
Teledyne Analytical Instruments 55
Preamp
0 OK
1 Zero too high
2 Amplifier output doesn't match test input
3 Both Failed
5.5 Major Internal Components
The zirconium sensor is accessed by unlatching and swinging open
the front panel, as described earlier. Other internal components are
accessed by removing the rear panel and sliding out the entire chassis.
See Figure 5-4, below. The gas piping is illustrated in Figures 2-1 and
Figure 2-2 and the major electronic components locations are shown in
Figure 2-3, in Chapter 2.
WARNING: SEE WARNINGS ON THE TITLE PAGE OF THIS
MANUAL.
Figure 5-4: Rear Panel Removal
(Remove only those screws marked with an X)
The 3000ZA contains the following major components: