Agilent Technologies 8255 Nitrogen, User Manual, Page: 63 / 118

Maintenance
5
SCD and NCD User Manual 63
Maintenance Schedule
To maintain optimum performance of the Agilent 8355 SCD and
8255 NCD, routinely replace the ozone trap, oil coalescing filter,
and vacuum pump oil. Refer to
Table 7 for the expected life
span of each item.
Table 7 Recommended Edwards RV5 vacuum pump maintenance
schedule
Component Operating life
*
*
The operating life is based on the total time logged during operation of the detector with
the burner and the ozone generator On.
Chemical trap (converts O
3
to O
2
) ~ 6 months
Oil coalescing filter ~ 3 months
Oil odor filter ~ 3 months if needed
Pump oil
†
†
Pump oil can be purchased from a supplier or directly from Agilent: SAE 10W-30,
Multiviscosity Synthetic Motor Oil such as, MOBIL 1 or AMSOIL.
~ 3 months
Oil level Check weekly