Maintenance Schedule & Procedures; Maintenance Schedule - Teledyne 300E Instruction Manual

Model 300E Carbon Monoxide Analyzer
Instruction Manual
9. MAINTENANCE SCHEDULE & PROCEDURES
Predictive diagnostic functions including failure warnings and alarms built into the
analyzer's firmware allow the user to determine when repairs are necessary without
performing painstaking preventative maintenance procedures. There are, however,
a minimal number of simple procedures that when performed regularly will ensure
that the analyzer continues to operate accurately and reliably over its the lifetime.
Repairs and troubleshooting are covered in Section 10 of this manual.

9.1. Maintenance Schedule

Table 9–1 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.
A Span and Zero Calibration Check (see CAL CHECK REQ'D Column of Table 0-1) must be
performed following certain of the maintenance procedure listed below. A check involves
applying zero and span gas to the analyzer and noting the result,
but not changing the instrument's offset and slope factors.
To perform a CHECK of the instrument's Zero or Span Calibration follow the same steps as
described in Sections 7.2 and 7.3, however, DO NOT press the ENTR key at the end of each
operation.
Pressing the ENTR key resets the stored values for OFFSET and SLOPE and alters the
instruments Calibration.
When performing a CHECK ZERO, press the EXIT key to end the procedure.
Alternately, use the Auto cal feature described in Section 7.4 with the with the CALIBRATE
attribute set to OFF.
P/N 04288 Rev: A
Risk of electrical shock. Disconnect power before performing any of the
following operations that require entry into the interior of the analyzer.
The operations outlined in this chapter are to be performed by qualified
maintenance personnel only.
MAINTENANCE SCHEDULE & PROCEDURES
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CAUTION
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