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Table 5.1- Preventative Maintenance Calendar
Model 200AU-NOy Option Manual Addendum
02808 Rev. E
Item
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maintenance Interval
Zero/Span Calibration
Annually or after maintenance or
repairs
Zero/Span Checks
Daily
Particulate Filter
Weekly as needed
Ozone Flow
Check every year and replace
o’ring and orifice in reaction cell
OzoneDryer Filter-DFU
Replace every year
Sample Flow
Check every 2 months
Converter
Check efficiency every 2 months
Pneumatic Lines
Check every 3 months
Factory Calibration
Calibrate each year or after
repairs
Leak Check
Check every 6 months
Replace bypass flow
orifices
Every year / as needed
Rebuildy bypass pump
Every year