RayTek FA, FR Replacing the Fiber Optic Cable, Removing the Fiber Optic Cable

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Maintenance

10.4 Replacing the Fiber Optic Cable

FA fiber cable assemblies are not field ʺreplaceableʺ without blackbody recalibration! As such, spare FA fiber cable assemblies are not available!

If the fiber optic cable ever needs to be removed or replaced, it can be removed from both the optical head and electronics enclosure without demounting them from their brackets.

Please be aware of the following when removing or installing cables:

Make sure cable connectors at the sensing head and electronics enclosure are clean before removing and/or replacing the fiber optic cable.

Replacement fiber optic cables of the same length can be recalibrated in the field by using the supplied Fiber Replacement Calibration software. Replacement fiber optic cables of different lengths require recalibration at the factory, or at a factory‐authorized service center. Contact your sales representative for details.

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 connected to the sensing head and electronics enclosure. Cables are shipped with protective end caps. Always save these caps for use whenever the fiber optic cable must be disconnected. Any contamination to the fiber optic cable ends will degrade performance. To replace the fiber optic cable, you will need to disconnect it from both the optical head and the electronics enclosure. The following instructions will guide you through the process.

10.4.1 Removing the Fiber Optic Cable

10.4.1.1 Removing the Fiber Optic Cable from the Optical Head

Complete the following steps to disconnect the fiber optic cable from the optical head:

1.Thoroughly clean the area around the optical head.

2.Insert a 1.3 mm (0.050”) hex wrench into the optical head’s hex screw and turn counter clockwise until the cable is loose.

3.Draw the fiber optic cable out of the optical head.

4.Important – If you plan to reconnect the same cable, immediately cover the end with a slip‐on end cap to prevent contamination. Do not use any adhesive tape over the cable end.

Marathon Series FA/FR

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Contents Marathon FA/FR Series Page Contacts Fluke Service CenterWorldwide Headquarters European Headquarters France United KingdomWarranty Table of Contents Milliamp Output Relay Outputs Trigger Fiber Calibration Page Safety Instructions Safety InstructionsMarathon Series FA/FR Product Description Product DescriptionTheory of Operation for 2‐Color Sensors ModelsPartially Obscured Targets Targets Smaller Than Field of ViewLow or Changing Emissivities Technical Data Technical DataMeasurement Specifications FA ModelsGeneral Specifications Electrical Specifications Dimensions of Optical HeadFA Models DimensionsAdjustable Mounting Bracket for Optical Head Standard Focus Optical SpecificationsClose Focus Close Focus Spot Size Charts for FA modelsStandard Focus Spot Size Charts for FR models Scope of Delivery Close Focus Spot Size Charts for FR modelsSensor Location Sensor LocationSensor Placement 2‐Color Mode Sensor Placement 1‐Color ModeViewing Angles Sensor Placement in 2‐Color ModeAcceptable Sensor Viewing Angles Installation InstallationMounting the Sensor Fiber Optic Cable AimingConfiguring the Sensor Cable Installing the Electronics HousingRemoving the Terminal Block Power Supply Connecting to a PCRS232/485 Interface Converter Multidrop Installation 2‐Wire Multidrop Installation 4‐WireWiring for 2‐Wire Sensor Setup Connecting to Terminal BlockInstalling of Multiple Sensors in a Network WiringAddressing Operation OperationControl Panel Operation Modes Mode Selector Button Sequence FA ModelsTemperature Display Emissivity 1‐ColorSlope 2‐Color 4 2C/1C Switch Peak Hold PKHAveraging AVG Overview to Hold Functions Valley Hold VALSetpoints DeadbandHold Functions Inputs and Outputs Ambient Background Temperature Compensation FA ModelsMilliamp Output Relay OutputsFactory Defaults Factory DefaultsCooling Platform for Electronics Housing OptionsOptions Accessories AccessoriesAccessories selection OverviewProtection Tube Air Purge CollarFlexible Fitting System Fitting SystemAvailable RS232/485 Interface Converters Order number ModelDimension of Industrial Power Supply Industrial Power SupplyProgramming Guide Command StructureProgramming Guide Remote versus Manual ConsiderationsPoll Mode Burst ModeTransfer Modes = + n ⋅15000 Response Time in Setup ModeCommand List Command ListXUFR1A Command Examples Command ExamplesMaintenance MaintenanceTroubleshooting Minor Problems TroubleshootingError Codes in 1‐Color Mode FA models Error Codes in 2‐Color Mode FR modelsFail‐Safe Operation Examples of failsafe conditions Current Output Values in accordance to an ErrorCleaning the Lens Replacing the Fiber Optic Cable Removing the Fiber Optic CableRemoving the Fiber Optic Cable from the Optical Head Put cable out Attaching the Fiber Optic Cable to the Optical Head Mounting the Fiber Optic CableFiber Calibration Dialog for the Calibration of the Fiber Cable Appendix AppendixDetermination of Emissivity Typical Emissivity ValuesMarathon Series FA/FR55 Typical Emissivity Values MetalsTypical Emissivity Values Non‐Metals Typical Slopes How to determine slope?Typical Percentage of Allowed Signal Reduction FR1A Models Signal Reduction FR ModelsAttenuation Influence on Accuracy Maximum ErrorInstrument Calibration Marathon