Honeywell Apex - Maintenance and Parts Replacement

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MAN0604_Issue 09_02-2013 Apex
2110M8030
5. MAINTENANCE
5.2 MAINTENANCE PROCEDURES /PARTS REPLACEMENT
The following sections describe how to carry out the tasks listed in the maintenance schedule
and how to replace parts suggested by Fault Diagnosis in Chapter 4. It tells how to change the
followingitems:
• Certied Sensor Filter
• Certied Sensor Cartridge
• Certied Sensor
• Transmitter Unit Front Panel Assembly
• CSA Transmitter Unit User Interface Cover Assembly
5.2.1 Changing the Certied Sensor Filter
TheCertiedSensorlterislocatedinthesensorcaporaccessoryattachedtotheendofthesensor
body.Thisprocedureallowstheltertobesafelychangedwiththeunitpowered-up.
Note: Beforestartingtheprocedurecheckthatthenewlteristhecorrecttypefortheapplication.
Threeltertypesareavailable:Mesh,HydrophobicandCarbon(seeChapter 2 and
Appendix C).
Toreplacetheltercarryoutthefollowingprocedure:
(1) RemovetheCertiedSensorcaporaccessoryfromthesensorbody.
Rotate the cap or accessory in an anticlockwise direction by 1/4 turn to release the bayonet
ttingandpulloff.
(2) Removetheexistinglter.
Thelterisheldinplaceinthecapbyitsthreelugs.Carefullyprisethelterfreefromthelug
location points in the cap or accessory.
Sensor body
Filter
lug location
Filter
Sensor cap
or
accessory
Lug
(3 off)