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RayTek MARATHON FA - Replacing the Fiber Optic Cable; Removing the Fiber Optic Cable; Removing the Fiber Optic Cable from the Optical Head

RayTek MARATHON FA
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Maintenance
MarathonSeriesFA/FR 49
10.4ReplacingtheFiberOpticCable
FA fibercable assembliesare not fieldʺreplaceableʺwithout blackbodyrecalibration!
Assuch,spareFAfibercableassembliesarenotavailable!
Ifthefiberopticcableeverneedstoberemovedorreplaced,itcanberemovedfromboththeoptical
headandelectronicsenclosurewithoutdemountingthemfromtheir
brackets.
Pleasebeawareofthefollowingwhenremovingorinstallingcables:
• Make sure cable connectors at the sensing head and electronics enclosure are clean before
removingand/orreplacingthefiberopticcable.
• Replacementfiberopticcablesofthesamelengthcanberecalibratedinthefieldbyusingthe
suppliedFiberReplacementCalibrationsoftware.Replacementfiberopticcablesofdifferent
lengthsrequirerecalibrationatthefactory,oratafactory‐authorizedservicecenter.Contact
yoursalesrepresentativefordetails.
Always clean the area around the fiber optic cable connectors before disconnecting. If any
contaminants get into the open connectors,
the sensor’s accuracy will be compromised. After
removing the cable, or before installing a new cable, the ends must be protected at all times until
connectedtothesensingheadandelectronicsenclosure.Cablesareshippedwithprotectiveendcaps.
Always save these caps for use whenever the fiber optic cable
must be disconnected. Any
contaminationtothefiberopticcableendswilldegradeperformance.Toreplacethefiberopticcable,
youwillneedtodisconnectitfromboththeopticalheadandtheelectronicsenclosure.Thefollowing
instructionswillguideyouthroughtheprocess.
10.4.1RemovingtheFiberOpticCable
10.4.1.1RemovingtheFiberOpticCablefromtheOpticalHead
Completethefollowingstepstodisconnectthefiberopticcablefromtheopticalhead:
1. Thoroughlycleantheareaaroundtheopticalhead.
2. Insert a 1.3 mm (0.050”) hex wrench into the optical head’s hex screw and turn counter
clockwise
untilthecableisloose.
3. Drawthefiberopticcableoutoftheopticalhead.
4. Important–Ifyouplantoreconnectthesamecable,immediatelycovertheendwithaslip‐on
endcaptopreventcontamination.Donotuseanyadhesivetapeoverthecableend.

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