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Lightwave Communications manual Table Of Contents, iv LDT-5525

Models: LDT-5525

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Lightwave Communications manual Table Of Contents, iv LDT-5525

Contents

Temperature Controller LDT-5525 User’s Guide700199040701 Page TABLE OF CONTENTS Chapter 1 Introduction and SpecificationsChapter 2 Operation Chapter 3 Maintenance and Troubleshooting Appendix A Steinhart-Hart EquationAppendix B Sensing Current and Thermistor Selection AD590 Sensor LM335 Sensor One Point Calibration Method Appendix C AD590 and LM335 Sensor CalibrationTABLE OF CONTENTS Two Point Calibration MethodTABLE OF CONTENTS iv LDT-5525LIST OF FIGURES LIST OF FIGURESLIST OF FIGURES vi LDT-5525SAFETY AND WARRANTY INFORMATION Safety Information and the ManualGeneral Safety Considerations SAFETY SYMBOLS Safety Marking SymbolsWARRANTY LimitationsReturning an Instrument Claims for Shipping Damage WA R R A N T Yx LDT-5525 Comments, Suggestions, and Problems We look forward to serving you even better in the future WA R R A N T Yxii LDT-5525 INTRODUCTION AND SPECIFICATIONS Product OverviewC H A P T E R Available Options and Accessories INTR ODUCTION AND SP ECIFI CATIONSSpecifications Temperature ControlOutput1 User Calibration Measurement DisplayGeneral 6 LDT-5525 SpecificationsINTR ODUCTION AND SP ECIFI CATIONS C H A P T E RRack Mounting AC Power ConsiderationsOPERATION C H A P T E RPower-Up Sequence Introduction to the LDT-5525 Front PanelFigure 2.1 LDT-5525 Front Panel Adjustments DisplayParameters Parameter Setup SENSOR CALControl Mode Error IndicatorsOutput SENSOR SELECT Switch Back Panel Controls and ConnectionsAnalog Output TEC Connector Table 2.1 SENSOR SELECT Switch PositionsBack Panel Controls and Connections TEC Grounding ConsiderationsO P E R A T I O N 14 LDT-5525General Operating Procedures Temperature Mode OperationWarm-Up and Environmental Considerations Resistance Mode Operation External Safety Switch OperationBooster Operation 18 LDT-5525 General Operating ProceduresO P E R A T I O N C H A P T E RMAINTENANCE AND TROUBLESHOOTING Calibration OverviewC H A P T E R Warm Up Recommended EquipmentEnvironmental Conditions SPECIFICATIONCalibration Adjustments Thermistor CalibrationAD590 Sensor Calibration LM335 Sensor Calibration ITE Current Calibration Troubleshooting SymptomCauses and Corrective Actions Unable to adjust output or STEINHART-HART EQUATION A P P E N D I X A1/T = A + B * ln R Equation Computer Program 30 LDT-5525 LDT-5525 32 LDT-5525 C H A P T E R ASENSING CURRENT AND THERMISTOR SELECTION Thermistor RangeA P P E N D I X B Table B.2 10K Thermistor Temperature Range TEMPERATURE RANGESENSING CURRENT Selecting the Sensing Current Temperature ResolutionSelecting and Using Thermistors Table B.3 10K Thermistor Voltage vs. Resolutiongenerally a good choice for most laser diode applications where high stability is required near room temperatures. Similarly, 10 K thermistors are often a good choice for detector cooling applications where you want to operate at temperatures from -30 oC to room temperature AD590 AND LM335 SENSOR CALIBRATION AD590 SensorA P P E N D I X C LM335 Sensor Tn = v / 10mV / K - 273.15 - where Tn is in oC One Point Calibration Method Two Point Calibration Method40 LDT-5525 C1n = U + V * C1 and C2n = V * C2 LDT-552542 LDT-5525 C H A P T E R C