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8. INSTRUMENT MAINTENANCE
Predictive diagnostic functions including data acquisition, failure warnings and alarms
built into the analyzer allow the user to determine when repairs are necessary without
performing unnecessary, preventative maintenance procedures. There is, however, a
minimal number of simple procedures that, when performed regularly, will ensure that
the analyzer continues to operate accurately and reliably over its lifetime. Repair and
troubleshooting procedures are covered in Section 8 and Section 9 of this manual.
8.1. MAINTENANCE SCHEDULE
Table 8-1 shows a typical maintenance schedule for the analyzer. Please note that in
certain environments (i.e. dusty, very high ambient pollutant levels) some maintenance
procedures may need to be performed more often than shown.
NOTE
A span and zero calibration check must be performed following some of the
maintenance procedures listed below.
See Sections 6.3, 6.6 and 6.9 for instructions on performing checks.
CAUTION
Risk of electrical shock. Disconnect power before performing any
operations that require entry into the interior of the analyzer.
NOTE
The operations outlined in this Section must be performed by qualified
maintenance personnel only.
NOTE
The front panel of the analyzer is hinged at the bottom and may be opened to gain
access to various components mounted on the panel itself or located near the front of
the instrument (such as the particulate filter).
A locking screw located at the top center of the panel and two fasteners located in the
upper right and left corners of the panel serve to lock it shut.
07266B DCN6485