Aeroqual Dust Sentry / AQS User Guide
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6 Service & Maintenance
Routine service and maintenance is required to ensure the monitor performs optimally.
The frequency of some service activities such as filter changes will depend upon local environmental
conditions Environments with higher particle concentrations, for example, will require more frequent
filter changes.
Other service activities such as flow checks and pump replacements can be scheduled at routine
intervals and other service activities such as module replacements are performed only when required.
Recommended service frequencies for each service activity are given in Section 6.1.
Further detail on each of the service activities can be found on the Aeroqual training website:
training.aeroqual.com
(The training website requires a login, please email
It is very important to keep service records. The Journal is used for this purpose. See Section 4.3 for
a discussion of use of the Journal for service record keeping.
For some of the service activities described a video is also available on
YouTube
. If a video
is available, a web-link will be provided next to this symbol.
Safety requirements
Replacement of any part should only be carried out by qualified personnel using only parts
from the manufacturer
Surfaces marked with a "Caution, Hot Surface" and an internationally recognised symbol may
get hot and deliver burns
If installed, the 80180 Particle Monitor is a Class 1 laser product and is not considered
dangerous if used correctly. It should not be powered up with the cover removed.
6.1 Service frequency guidelines
The frequency of some of the service activities described above can depend upon environmental
conditions and also upon data quality objectives. Some service activities are required at fixed
frequencies (
scheduled maintenance
), and some are performed only as required (
unscheduled
maintenance).
Service intervals will vary depending on site conditions. For instance, particulate matter levels will
impact the frequency of filter changes
– high PM levels = more frequent filter changes
It is important to change the filter when it gets dirty. Once the local site conditions are understood, a
filter change schedule can be developed for that site.
Figure 6-1 Filters should be changed before they get too dirty. The frequency of filter changes will
depend upon local site conditions.
Data quality objectives will also influence the service frequencies for some operations. In monitoring
situations where data quality objectives are high, for example where monitoring is performed for
compliance or where a high amount of scrutiny will be placed on the data, service frequencies may be
higher.
It is recommended that the monitor engineer, over time, develops an appropriate servicing schedule
for a particular site.