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Introduction
General Troubleshooting
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Service and Maintenance
The CGA 351 has been designed to provide years of trouble-free
operation. However, because of the technical challenges involved in
measuring very low levels of oxygen, some difficulties may
occasionally be encountered. The procedures for resolving many of
these situations are discussed in this chapter. If the information
provided in this chapter is insufficient to solve the problem, please
contact the factory for further assistance.
If a faulty component is discovered in the CGA 351, that component
is usually replaceable on site. Contact the factory to obtain a new part,
and proceed to the appropriate section of this chapter for installation
instructions.
To ensure safe operation of the CGA 351, it must be
installed and operated as described in this manual.
In addition, be sure to follow all applicable local safety
codes and regulations for installing electrical equipment.
In addition, all procedures should be performed by
trained service personnel.
This section discusses the following general categories of problems
that may arise with the CGA 351:
•
faulty wiring
•
a faulty thermocouple
•
a faulty oxygen sensor
•
a faulty sensor furnace
•
missing sensor furnace voltage
Use this section to troubleshoot any malfunction in the CGA 351.
Refer to Figure 5-2 on page 5-25, and complete the following
sections in the sequence indicated.
Note: For information regarding component locations and/or wiring
connections in an optional enclosure, see Appendix C.
!WARNING!
December 2004
5-1
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