Lightwave Communications LDT-5525 manual Appendix C AD590 and LM335 Sensor Calibration

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TABLE OF CONTENTS

Appendix C AD590 and LM335 Sensor Calibration

AD590 Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

LM335 Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

One Point Calibration Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Two Point Calibration Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

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Contents User’s Guide Page Table of Contents Appendix a Steinhart-Hart Equation Appendix C AD590 and LM335 Sensor Calibration Iv LDT-5525 List of Figures Vi LDT-5525 General Safety Considerations Safety Information and the ManualSafety Marking Symbols Safety SymbolsWarranty Claims for Shipping Damage When you contact us, please have the following information Comments, Suggestions, and ProblemsXii LDT-5525 Product Overview Introduction and SpecificationsDescription Model Number Available Options and AccessoriesOutput1 SpecificationsUser Calibration General Specifications LDT-5525 Rack Mounting AC Power ConsiderationsOperation Introduction to the LDT-5525 Front Panel Power-Up SequenceAdjustments Sensor CAL Output Back Panel Controls and Connections Sensor Select SwitchBack Panel TEC Connector TEC ConnectorTEC Grounding Considerations Warm-Up and Environmental Considerations General Operating ProceduresTemperature Mode Operation External Safety Switch Operation Resistance Mode OperationBooster Operation General Operating Procedures LDT-5525 Calibration Overview Maintenance and TroubleshootingWarm Up Recommended EquipmentEnvironmental Conditions Thermistor Calibration Calibration AdjustmentsAD590 Sensor Calibration LM335 Sensor Calibration ITE Current Calibration Symptom Causes and Corrective Actions TroubleshootingTemperature, based on C1 and C2 Table A.1 Comparison of Curve Fitting Equations STEINHART-HART EquationThermistor R/T Curves Computer Program REM Print Using H$ I, TI, RI LDT-5525 Thermistor Range Sensing Current Thermistor SelectionTable B.2 10K Thermistor Temperature Range Selecting the Sensing Current Temperature ResolutionSelecting and Using Thermistors Thermistor Range AD590 Sensor AD590 and LM335 Sensor CalibrationFigure C.1 AD590 Nonlinearity LM335 Sensor0607 Two Point Calibration Method One Point Calibration MethodC1n = U + V * C1 and C2n = V * C2 LDT-5525