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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