Table 9 – Maintenance Schedule
Perform precision check (Automated)
Perform precision check (Manual)
(This task is performed to ensure a high data capture rate)
Perform precision check (pre-check) prior to commencing any
service tasks or making any changes to the system as found in
its current state. This task is necessary to validate any
previously captured data.
Check particulate filter, replace if full/dirty
Check sample inlet system for moisture or foreign materials.
Clean if necessary
Check chassis fan filter and clean if necessary
Check date and time is correct
Check instrument status light
External vacuum pump check (vacuum source)
Perform O3 span calibration (if required)
Perform precision check (post-check) once all service tasks
have been completed. This task is necessary to establish a
valid start point to begin capturing new data.
Perform O3 span calibration
Check the zero air scrubbers, replace if saturated (IZS) option
Check Ozone scrubber, replace if inefficient.
Perform multipoint precision check
Calibrate analog outputs (only if used)
Check the flow, if incorrect clean or replace the orifice
* Suggested intervals for maintenance procedure are a guide only and may vary with sampling intensity
and/or environmental conditions. Refer to your local regulatory standard for your personalised
maintenance schedule.