Display Resolution, Drift, EMI/RFI Noise | RayTek ThermoView Ti30

Display Resolution

The level of precision to which a temperature value can be displayed, usually expressed in degrees or tenths of degrees.

Drift

The change in instrument indication over a long period of time, not caused by external influences on the device (per the ASTM standard test method E 1256-88).

EMC

Electro-Magnetic Compatibility is the resistance to electrical signal disturbances within IR thermometers.

Emissivity

Emissivity is the ratio of infrared energy radiated by an object at a given temperature and spectral band to the energy emitted by a perfect radiator (blackbody) at the same temperature and spectral band. The emissivity of a perfect blackbody is unity (1.00).

EMI/RFI Noise

Electro-Magnetic Interference/Radio Frequency Interference (EMI and RFI) may cause disturbances to electrical signals within IR thermometers. EMI and RFI noise is most commonly caused by devices by switching motors (air conditioners, power tools, refrigeration systems, etc.).

°F (Fahrenheit)

Temperature scale where θF (θC υ 1.8) 32 θR 459.67 .

Far Field

A measured distance substantially greater than the focus distance of the instrument; typically greater than 10 times the focus distance.

Field of View (FOV)

The region, at the target, measured by the IR thermometer. Typically presented by giving the spot diameter as a function of distance from the instrument. Also presented as the angular size of the spot at the focus point.

See Optical Resolution.

July 1, 2003

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RayTek ThermoView Ti30 user manual Display Resolution, Drift, EMI/RFI Noise, Far Field, Field of View FOV

Contents

User’s Manual ThermoView Ti30 Contents Qualitative and Quantitative Temperature Measurements Appendix B Infrared Theory Q&A Glossary Warranty Information Customer Service Contact Information Introduction Netd Quick Specifications Table Unpacking Your New Imager First, the Batteries Removing the Battery Pack Battery Packs Normal Charge Cycle Charging the Rechargeable Battery Pack Docking Station LED Indicators Attaching the Wrist Strap Getting Started Displaying Images Turning the Unit On Information Screen Normal Mode Keypad Settings and Controls ThermoView Imager Settings Switches icons not shown Laser On/Off Toggle Button ThermoView Imager Settings Switches Laser Aperture and Optical Channel Japanese Palette Switch LCD Backlight Illumination SwitchMeasurement Mode Switch Centigrade/Fahrenheit Toggle Button Focus Wheel Gain and Level ThumbwheelsAutomatic Semi Automatic Level point Location of the Focus Wheel Trigger Main Loop Man Machine Interface Flow Charts Image Recording Procedure Emissivity Adjustment Procedure July 1 Version Recording an Image Quick Image Fix Procedure Array Recalibration Procedure Retrieving an Image Retrieve Mode Downloading and Looking at Images Installing the Software Hooking Up the Docking Station Connecting the Docking Station to Your Computer Connecting the USB Connector to the USB Port InsideIR Main Screen at Program Launch Sync button Downloading Images Download Data Screen Saving Images Contents of Images Folder Setting the Imager Clock July 1 Version Looking at Your Downloaded Images Field USB Port Viewing Thumbnail Images Viewing a Single Image Obtaining the Best Image Importance of Focusing Selecting the Color Palette Selecting the Measurement Mode LevelGain Min Level Gain Max Level Gain Tip Distance to Target Spot Ratio Qualitative and Quantitative Temperature Measurements DS ratio D / S = Optical DiagramField-of-View Environmental Conditions Ambient Temperatures Emissivity Reflected Temperature Compensation Reflected Temperature Compensation File Management Organizing Your Data Uploading Data to Your ThermoView Ti30 Imager Uploading Data to the Imager Editing Data Before Upload RTC OFF Scale Limits Analyzing Your DataSingle Image Screen Sample Image at Original Scale Limits Isotherms Sample Image at Original Isotherm Setting Additional Image Analysis Tools Temperature Table Tab Profile Tab Temperature Table Profile Tab Histogram Tab New Folder Menu Bar Exit ThermoView Imager InfoFahrenheit Celsius Export Image Export Temperature TableCreate Report Histogram Contents Copy Profile ChartCascade Tile Horizontal Thermographic Report Reporting Your Findings Appendix a Technical Reference Imager Accuracy Chart Typical Emissivity Values Imager Reading Error vs Source DS Aluminum Unoxidized Ni-Cu Gob How does IR work? Why use noncontact infrared thermometers?Appendix B Infrared Theory Q&A Emissivity How to assure accurate temperature measurement? Field-of-view Distance to spot ratio What are the most popular applications? How to take temperature measurement? Glossary Blackbody Background TemperatureCalibration Calibration Source Drift Display ResolutionEMI/RFI Noise Far Field Full Scale Focus Point or DistanceFull Scale Accuracy Gray Body Loop LaserMicron or µm Minimum spot size Non-Gray Body Optical ResolutionOptical Pyrometer Pyroelectric Detector Resolution Reflected Temperature CompensationRelative Humidity Repeatability Temperature Storage Temperature RangeTemperature Coefficient or Ambient Derating Spectral Response Thermal Shock Temperature ResolutionTime Constant Transfer Standard