Fluke Ti20 user manual Understanding the Trigger

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Ti20

Users Manual

Focus Ring

Optical Channel

Ti20

THERMAL IMAGER

dag02f.eps

Figure 1-4. Focusing the Imager

Understanding the Trigger

The trigger is located in the standard trigger position for a pistol-grip device. The primary function of the trigger is to freeze a thermal image for possible storage to memory by the user. The trigger freezes an image in the following modes:

•In automatic temperature level and span adjustment mode

•In manual temperature level and span adjustment mode

•When scrolling through the menu levels (without entering a menu selection)

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Contents Ti20 Limited Warranty and Limitation of Liability Table of Contents Ti20 List of Tables Ti20 List of Figures Ti20 Introduction Getting StartedContacting Fluke Safety Information SymbolsTi20 Laser Warning LabelsStandard Accessories Unpacking the ImagerUnpacking the Imager Features and Controls Ti20Focusing the Imager Operating the ControlsTi20 Understanding the TriggerUsing the AC Power Adapter Using the AC Power AdapterUsing the Battery Charger Charging and Replacing the BatteriesInstalling or Replacing the Batteries Replacing the Battery PackAttaching the Wrist Strap Attaching the Wrist StrapConnecting the USB Cable Inputs and ConnectionsCleaning the Case CleaningMounting the Imager on a Tripod Cleaning the Lens Ti20 Basic Operation Turning the Imager On and OffUnderstanding the Home Display Imager Home Display ZonesContents of the Home display is described in Table Aiming and Activating the Laser Capturing Images Comparing Frozen Images to Stored ImagesAdjusting the Backlight Setting the Temperature Scale Setting the LevelPress Flevel to access the set Level function Using Distance to Spot Size Ratio DS Adjusting the SpanManually Activating the Calibration Flag FOV Ambient Temperature Derating and Thermal Shock Environmental ConditionsTape method EmissivityContact thermometer method Reflected Temperature Compensation Reflected Temperature CompensationTi20 Data Management and Storage Advanced Imager OperationViewing Stored Images Deleting Images Selecting a Palette Adjusting Emissivity Press FNto access the Adjust Emissivity display Adjusting Reflected Temperature Compensation Values Setting Alarm Limits Dag124f.bmp Adjusting Sleep Mode Ti20 Appendices Page Glossary Display Resolution BlackbodyCalibration Calibration SourceField of View FOV Focus Point or DistanceFull Scale Full Scale AccuracyOptical Resolution LevelMicron or µm Minimum spot sizeReflected Temperature Compensation ResolutionRelative Humidity RepeatabilityStorage Temperature Range TemperatureTemperature Coefficient or Ambient Derating Temperature ResolutionBasics of Infrared Measurement Why use non-contact infrared thermometers?How does IR work? How to assure accurate temperature measurement? What is emissivity?How to take temperature measurement? What is the distance to spot ratio?What are some uses for non-contact thermometers? Ti20 Typical Emissivity Values Table C-1. Emissivity Values for Metals Material To 14 µm Table C-1. Emissivity Values for Metals Material To14 µm Tin Unoxidized 0.3 Titanium Polished Typical Emissivity Values Ti20 Specifications ThermalOther