RayTek MI Miniature Infrared Sensor operating instructions Basics Electrical Interference

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Basics

4.5 Electrical Interference

To minimize electrical or electromagnetic interference or “noise” be aware of the following:

Mount the unit as far away as possible from potential sources of electrical interference such as motorized equipment producing large step load changes.

Use shielded wire for all input and output connections.

Make sure the shield wires are earth grounded at one point.

Sensor head shield braid should make direct contact around the cable circumference.

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Contents Operating Instructions Declaration of Conformity for the European Community Europe ContactsRaytek 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 DescriptionTechnical Data Technical DataMeasurement Specifications Temperature Coefficient Temperature ResolutionEmissivity TransmissionOptical Resolution DS Technical Data Optical SpecificationsTechnical Data Electrical Specifications Power SupplyOutputs Technical Data Environmental Specifications Dimensions of Sensing Head Technical Data DimensionsScope of Delivery Dimensions of Electronic BoxMeasurement of Infrared Temperature BasicsBasics Ambient Temperature Basics Emissivity of Target ObjectAtmospheric Quality Basics Electrical Interference Installation InstallationPositioning Distance to ObjectSensor Head Cable WiringCable Preparation Cable for Power Supply and OutputsConnecting of Cables to the Electronic Box Signal Outputs and Power Supply Installation OutputsWiring of the Signal Output mA or Signal OutputWiring the Output for Head Ambient Temperature Head Ambient Temp. / Alarm OutputInstallation Wiring the Thermocouple J Compensation Cable Wiring the Thermocouple K Compensation CableThermocouple Output Overview to the FTC Inputs Installation Inputs FTCRatio between Analog Input Voltage and Emissivity Example Emissivity Setting analog controlledDigital Selection of Emissivity with FTC Inputs Emissivity Setting digital controlledAmbient Background Temperature Compensation Principle of Ambient Background Temperature Compensation Trigger and Hold Function Wiring of FTC3 as External InputFTC3 for Holding the Output Temperature Connecting the RS232 cable Installation Connecting to the PC via RS232Wiring the RS485 Interface Installation Installing of Multiple Sensors via RS485Addressing through Software Addressing through ButtonsInstallation Operation OperationControl Panel Operation Setting the Output Jumper Operation Setting of Modes Available Modes Mode RangeAveraging Operation Post ProcessingOperation Peak Hold Valley Hold Advanced Peak Hold Advanced Valley Hold Advanced Peak Hold with AveragingAdvanced Valley Hold with Averaging Operation Factory Defaults Options OptionsAccessories AccessoriesOverview Standard Mounting Accessories Adjustable Mounting Bracket Xxxmiacab Accessories Adjustable Mounting BracketFixed Mounting Bracket Xxxmiacfb Accessories Fixed Mounting BracketAir Purging Jacket Xxxmiacaj Accessories Air Purging JacketMounting the Air Purge Jacket Air Cooling System Accessories Air Cooling SystemAir Flow Accessories Air Cooling System T‐Adapter Dimensions of Air Cooling System Right Angle Mirror * with Air Purging Accessories Right Angle MirrorBox Lid with View Port for Post Installations Accessories Box LidProtective Window Xxxmiacpw Accessories Protective WindowMaintenance MaintenanceTroubleshooting Minor Problems TroubleshootingError Codes for the Outputs Maintenance Fail‐Safe OperationError Codes via RS232/485 Error Codes via RS232/485 Error Codes for the LCD DisplayError Codes LCD Display Maintenance Sensing Head Exchange Maintenance Software SoftwareProgramming Guide Programming GuideSettings Return from the burst mode to the poll modeProgramming Guide Transfer Modes Requesting a parameter Poll Mode Programming Guide General Command StructureSetting a parameter Poll Mode Device response formatError message Device InformationDevice Information Temperature Calculation Programming Guide Device SetupEmissivity Setting and Alarm Set points Selection of the emissivity settingTable for Emissivity and Set Points Post Processing Dynamic DataAlarm Output Output for the Target TemperatureFactory default values Programming Guide Device ControlLock Mode Mode Setting for the Digital Input FTC3Changing the Sensing Head Calibration Data Setting the command ES = D Changing an address Programming Guide Multiple Units RS485 Multidrop ModeLCD Programming Guide Command SetDescription LT ‐40 to 600C ‐40 to 1112F = number, X = uppercase letter Command Set Appendix AppendixDetermination of Emissivity Appendix Appendix Typical Emissivity Values Metals Tab Typical Emissivity Values for Metals Tab Typical Emissivity Values for Non‐Metals NON -METALSIndex Index