ACG+
Service & Troubleshooting Manual
Int. Approved
Document ref: P0149-825-00
October 2022
Page 22 of 37
Copyright © 2022 Analox Ltd. All Rights Reserved.
Commercial in Confidence
4.1.4
VOC maintenance
Maintenance of the VOC sensor can be done by the following methods, clean or replace the lamp, or
replace the electrode stack. Cleaning the lamp should be performed as required if the sensitivity of the
sensor reduces over time. Replacement of the PID lamp should be performed after 5000 hours of use.
Replacement of the electrode stack should be performed only if the sensor has been damaged by
contamination.
The lamp and electrode stack are both part of the PID component of the sensor. The cleaning and
replacement processes are documented below.
1]
Remove the flow adaptor from the sensor inlet.
2]
Remove the sensor housing from the MEC and then remove the sensor from the
housing by twisting the PCB on the rear of the sensor, remove the PCB from the sensor
