
System Maintenance
Step 7:
Remove the detector inlet from the cleaning adapter and place it on a clean sur-
face.
Step 8:
Allow the inlet to completely dry before re-installing.
8.6.4 Other maintenance tasks
You can access instructional videos for these processes from the Help menu 4.2.6
8.6.4.1 Inspecting and replacing O-rings
The singular detector flow-path is sealed using several silicon O-rings. Periodically, it is import-
ant to check the integrity of these O-rings to ensure there are no abrasions or tears which
could introduce air leaks. Air leaks can negatively impact system performance.
With the system powered off and fully cooled down, remove the thermal desorber, sensing
element and then the detector inlet. Visually inspect each O-ring for damage. Replace any
damaged O-rings. Re-install the inlet and sensing element, leaving the thermal desorber
removed.
8.6.4.2 Checking the system for leaks
Following the O-ring check and replacement, verify that there are no air-leaks. Use the silicon
endcap of the inlet tool to create a face seal against the singular flow-path of the detector.
This is done by firmly pressing the silicon end-cap into the concave area of the detector inlet.
As airflow through the system drops, it is displayed on the device. The flow rate should reach
0 ccm during this process. By monitoring and checking that the flow rate on the device drops
to 0, you can ensure that air is not entering the system through a leak, which would neg-
atively impact performance during operation.
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4226044 (Rev. C) © 2020 FLIR Systems, Inc.