ACG+
Service & Troubleshooting Manual
Int. Approved
Document ref: P0149-825-00
October 2022
Page 12 of 37
Copyright © 2022 Analox Ltd. All Rights Reserved.
Commercial in Confidence
4
Maintenance
Certain elements of the ACG+ system require regular, preventative maintenance to ensure optimum
operation. Section 3.1 shows the maintenance that is required and the scheduled interval for
performing the maintenance.
Table 7 Maintenance schedule of ACG+ components
System component
Maintenance required
Maintenance interval
Oxygen sensor
Replace electrochemical cell
Approx. 2 years or as required.
Carbon monoxide sensor
Replace electrochemical cell
Approx. 2 years or as required.
VOC sensor
Clean PID lamp and
electrode stack
As required, recommended every 3
months.
Replace PID lamp or whole
PID cell
Lamp - 5,000 hours (~6 months) Cell
–
5 years or as required.
Carbon dioxide sensor
Replace sensor
6 years
Water vapour sensor
Replace water vapour sensor 2 years
Activated charcoal filter
Replace filter
1 year
PID particulate filter
Replace filter
6 months or as required (Depending on
how dirty sample is)
Sensor flow adaptor orings
Replace oring
Check yearly and replace if required
NOTE:
A ‘
RECOMMENDED SPARES AND MAINTENANCE
INTERVALS’
(P0149-955) GUIDE WILL BE PROVIDED WITH
THE ACG+, THIS INCLUDES RECOMMENDED
MAINTENANCE INTERVALS AND REPLACEMENT PART
NUMBERS. WE RECOMMEND THIS DOCUMENT IS USED TO
TRACK ANY MAINTENANCE CARRIED OUT ON THE ACG+.
4.1
Sensor & filter replacement
Before attempting to replace any filters or sensors ensure that the ACG+ is switched off and the gas supply has
been isolated and disconnected. Using a Pozi-drive screwdriver loosen the 4 enclosure lid screws and open the
lid.
