RayTek MI Miniature Infrared Sensor Maintenance, Troubleshooting Minor Problems

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Maintenance

9 Maintenance

Our sales representatives and customer service are always at your disposal for questions regarding application assistance, calibration, repair, and solutions to specific problems. Please contact your local sales representative if you need assistance. In many cases, problems can be solved over the telephone. If you need to return equipment for servicing, calibration, or repair, please contact our Service Department before shipping. Phone numbers are listed at the beginning of this document.

9.1 Troubleshooting Minor Problems

 

Symptom

 

 

Probable Cause

 

 

Solution

 

No output

 

No power to instrument

 

 

Check the power supply

 

Erroneous

 

 

Faulty sensor cable

 

Verify cable continuity

 

temperature

 

 

 

 

 

 

 

 

 

 

 

Erroneous

 

 

Field of view obstruction

 

 

Remove the obstruction

 

temperature

 

 

 

 

 

 

 

 

 

 

 

 

Erroneous

 

 

Window lens

 

 

Clean the lens

 

temperature

 

 

 

 

 

 

 

 

 

 

 

 

Erroneous

 

 

Wrong emissivity

 

 

Correct the setting

 

temperature

 

 

 

 

 

 

 

 

 

 

 

 

Temperature

 

 

Wrong signal processing

 

 

Correct Peak/Valley Hold or Average

 

fluctuates

 

 

 

 

settings

 

 

 

 

 

 

 

Temperature

 

 

No ground for the head

 

Check wiring / grounding

 

fluctuates

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 6: Troubleshooting

60

MI

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Contents Operating Instructions Declaration of Conformity for the European Community Contacts EuropeRaytek GmbH Raytek Corporation United Kingdom FranceWarranty Table of Contents Onnecting to the PC VIA RS232 Output for the Target Temperature Ommand S ET Safety Instructions Safety InstructionsOperating Instructions Description DescriptionMeasurement Specifications Technical DataTechnical Data Temperature Resolution Temperature CoefficientEmissivity TransmissionTechnical Data Optical Specifications Optical Resolution DSOutputs Technical Data Electrical SpecificationsPower Supply Technical Data Environmental Specifications Technical Data Dimensions Dimensions of Sensing HeadDimensions of Electronic Box Scope of DeliveryBasics Measurement of Infrared TemperatureBasics Atmospheric Quality Ambient TemperatureBasics Emissivity of Target Object Basics Electrical Interference Installation InstallationPositioning Distance to ObjectWiring Sensor Head CableCable for Power Supply and Outputs Cable PreparationConnecting of Cables to the Electronic Box Installation Outputs Signal Outputs and Power SupplySignal Output Wiring of the Signal Output mA orHead Ambient Temp. / Alarm Output Wiring the Output for Head Ambient TemperatureInstallation Thermocouple Output Wiring the Thermocouple J Compensation CableWiring the Thermocouple K Compensation Cable Installation Inputs FTC Overview to the FTC InputsEmissivity Setting analog controlled Ratio between Analog Input Voltage and Emissivity ExampleEmissivity Setting digital controlled Digital Selection of Emissivity with FTC InputsAmbient Background Temperature Compensation Principle of Ambient Background Temperature Compensation Wiring of FTC3 as External Input Trigger and Hold FunctionFTC3 for Holding the Output Temperature Installation Connecting to the PC via RS232 Connecting the RS232 cableInstallation Installing of Multiple Sensors via RS485 Wiring the RS485 InterfaceAddressing through Buttons Addressing through SoftwareInstallation Control Panel OperationOperation Operation Setting the Output Jumper Operation Setting of Modes Mode Range Available ModesOperation Post Processing AveragingOperation Peak Hold Valley Hold Advanced Peak Hold Advanced Valley Hold with Averaging Advanced Valley HoldAdvanced Peak Hold with Averaging Operation Factory Defaults Options OptionsOverview AccessoriesAccessories Standard Mounting Accessories Accessories Adjustable Mounting Bracket Adjustable Mounting Bracket XxxmiacabAccessories Fixed Mounting Bracket Fixed Mounting Bracket XxxmiacfbAccessories Air Purging Jacket Air Purging Jacket XxxmiacajMounting the Air Purge Jacket Accessories Air Cooling System Air Cooling SystemAir Flow Accessories Air Cooling System T‐Adapter Dimensions of Air Cooling System Accessories Right Angle Mirror Right Angle Mirror * with Air PurgingAccessories Box Lid Box Lid with View Port for Post InstallationsAccessories Protective Window Protective Window XxxmiacpwMaintenance MaintenanceTroubleshooting Minor Problems TroubleshootingMaintenance Fail‐Safe Operation Error Codes for the OutputsError Codes LCD Display Error Codes via RS232/485Error Codes via RS232/485 Error Codes for the LCD Display Maintenance Sensing Head Exchange Maintenance Software SoftwareProgramming Guide Programming GuideProgramming Guide Transfer Modes SettingsReturn from the burst mode to the poll mode Programming Guide General Command Structure Requesting a parameter Poll ModeSetting a parameter Poll Mode Device response formatDevice Information Error messageDevice Information Programming Guide Device Setup Temperature CalculationEmissivity Setting and Alarm Set points Selection of the emissivity settingTable for Emissivity and Set Points Dynamic Data Post ProcessingOutput for the Target Temperature Alarm OutputFactory default values Programming Guide Device ControlChanging the Sensing Head Calibration Data Lock ModeMode Setting for the Digital Input FTC3 Setting the command ES = D Programming Guide Multiple Units RS485 Multidrop Mode Changing an addressProgramming Guide Command Set LCDDescription LT ‐40 to 600C ‐40 to 1112F = number, X = uppercase letter Command Set Determination of Emissivity AppendixAppendix Appendix Appendix Typical Emissivity Values Metals Tab Typical Emissivity Values for Metals NON -METALS Tab Typical Emissivity Values for Non‐MetalsIndex Index