Fluke Ti20 user manual Setting the Temperature Scale, Setting the Level

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Basic Operation 2

Setting the Temperature Scale

Setting the Temperature Scale

The Imager displays temperatures using either the Celsius or Fahrenheit temperature scales. The default temperature scale is Celsius.

1.Press G(MENU) five times from the Home display to access the temperature scale function.

2.Press H(TEMPSCALE) to toggle the temperature scale between Fahrenheit and Celsius.

Setting the Level

In Manual mode, you can define Level and Span values manually. Manual mode allows you to bring both MIN and MAX values to the desired cut-off levels and to adjust the temperature interval to a minimum to maximizing color resolution. Manual mode provides the best possible image definition as to the specific inspection situation at hand, both from a thermal resolution and temperature level standpoint.

Level is the median point of a given temperature scale. For example, if the unit is currently in Automatic mode, and there is a given thermal scene with MIN and MAX temperature limits, the moment you switch the unit to Manual mode, the Level value is set by the Imager according to the following formula:

Max Span + Min Span

Level =

2

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1.Press G(MENU) one time from the Home display to access the set Mode menu.

2.Press F(MANUAL to manually set Level and Span mode or H(AUTO) to have the Imager automatically set Level and Span.

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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 Symbols Safety InformationLaser Warning Labels Ti20Unpacking the Imager Standard AccessoriesUnpacking the Imager Ti20 Features and ControlsOperating the Controls Focusing the ImagerUnderstanding the Trigger Ti20Using the AC Power Adapter Using the AC Power AdapterCharging and Replacing the Batteries Using the Battery ChargerReplacing the Battery Pack Installing or Replacing the BatteriesAttaching the Wrist Strap Attaching the Wrist StrapInputs and Connections Connecting the USB CableCleaning the Case CleaningMounting the Imager on a Tripod Cleaning the Lens Ti20 Turning the Imager On and Off Basic OperationImager Home Display Zones Understanding the Home DisplayContents of the Home display is described in Table Aiming and Activating the Laser Comparing Frozen Images to Stored Images Capturing ImagesAdjusting the Backlight Setting the Level Setting the Temperature ScalePress Flevel to access the set Level function Using Distance to Spot Size Ratio DS Adjusting the SpanManually Activating the Calibration Flag FOV Environmental Conditions Ambient Temperature Derating and Thermal ShockTape 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 Calibration Source Display ResolutionBlackbody CalibrationFull Scale Accuracy Field of View FOVFocus Point or Distance Full ScaleMinimum spot size Optical ResolutionLevel Micron or µmRepeatability Reflected Temperature CompensationResolution Relative HumidityTemperature Resolution Storage Temperature RangeTemperature Temperature Coefficient or Ambient DeratingBasics of Infrared Measurement Why use non-contact infrared thermometers?How does IR work? What is emissivity? How to assure accurate temperature measurement?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 Thermal SpecificationsOther