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Maintenance Schedule & Procedures M400E Ozone Analyzer Operator’s Manual
12.2. MAINTENANCE SCHEDULE
Table 12-2 shows a typical maintenance schedule for the M400E. 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 (see CAL CHECK REQ’D Column of Table 9-1) must be performed
following some of the maintenance procedures listed below.
To perform a CHECK of the instrument’s Zero or Span Calibration follow the same steps as
described in Section 9.3
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.
Alternately, use the Auto cal feature described in Section9.4 with the with the
CALIBRATE ATTRIBUTE SET TO OFF.
CAUTION
Electrical Shock Hazard
RISK OF ELECTRICAL SHOCK. DISCONNECT POWER BEFORE PERFORMING ANY OF
THE FOLLOWING OPERATIONS THAT REQUIRE ENTRY INTO THE INTERIOR OF THE
ANALYZER.
CAUTION
Qualified Personnel
THE OPERATIONS OUTLINED IN THIS CHAPTER ARE TO BE PERFORMED BY
QUALIFIED MAINTENANCE PERSONNEL ONLY.
220 04315 Rev. C1