RayTek ThermoView Ti30 user manual Environmental Conditions, Ambient Temperatures

Page 48

Figure 30. Field of View

Tip: When accuracy is critical make sure that the target is at least twice as large as the spot size.

Environmental Conditions

Watch for environmental conditions in the working area. Steam, dust, smoke, etc.,

can prevent accurate measurement by obstructing the path between the target and the unit's optics. Noise, electromagnetic fields, or vibration are other conditions that can interfere with temperature measurements, and should be considered before starting temperature measurements.

Tip: If interfering factors can not be mitigated try to change your position relative to the source of interference, or pick a time when interfering factors are not present or at a smaller level.

Ambient Temperatures

The imager’s operating temperature range is 0 to 50θ (32 to 122θF). Its calibration is maintained within this range. The unit will not perform in terms of the accuracy and repeatability if used outside the stated operating temperature range. Also, if the imager is

exposed to abrupt ambient temperature differences of 10θC (18θF) or more, allow it to adjust to the new ambient temperature for at least 20 minutes.

Tip: When inspecting equipment in a plant, plan the sequence of locations to be inspected so the ambient temperature changes are gradual.

July 1, 2003

- 48 -

Version 1.0

i

Tel: (01943) 602001- WWW.ISSLTD.CO.UK - Fax: (01943) 816796

i

Image 48
Contents ThermoView Ti30 User’s ManualContents Qualitative and Quantitative Temperature Measurements Appendix B Infrared Theory Q&A Glossary Warranty Information Customer Service Contact Information Introduction Quick Specifications Table NetdUnpacking Your New Imager Removing the Battery Pack First, the BatteriesBattery Packs Charging the Rechargeable Battery Pack Normal Charge CycleDocking Station LED Indicators Getting Started Attaching the Wrist StrapTurning the Unit On Displaying ImagesInformation Screen Normal Mode Settings and Controls KeypadThermoView Imager Settings Switches icons not shown ThermoView Imager Settings Switches Laser On/Off Toggle ButtonJapanese Laser Aperture and Optical ChannelLCD Backlight Illumination Switch Palette SwitchMeasurement Mode Switch Centigrade/Fahrenheit Toggle ButtonGain and Level Thumbwheels Focus WheelAutomatic Semi Automatic Level pointTrigger Location of the Focus WheelMan Machine Interface Flow Charts Main LoopImage Recording Procedure Emissivity Adjustment Procedure July 1 Version Quick Image Fix Procedure Array Recalibration Procedure Recording an ImageRetrieve Mode Retrieving an ImageInstalling the Software Downloading and Looking at ImagesConnecting the Docking Station to Your Computer Hooking Up the Docking StationConnecting the USB Connector to the USB Port InsideIR Main Screen at Program Launch Downloading Images Sync buttonSaving Images Download Data ScreenSetting the Imager Clock Contents of Images FolderJuly 1 Version Field USB Port Looking at Your Downloaded ImagesViewing Thumbnail Images Viewing a Single Image Importance of Focusing Obtaining the Best ImageSelecting the Measurement Mode Selecting the Color PaletteLevelGain Min Level  Gain Max Level  Gain Tip Qualitative and Quantitative Temperature Measurements Distance to Target Spot RatioOptical Diagram Field-of-ViewDS ratio D / S = Ambient Temperatures Environmental ConditionsReflected Temperature Compensation EmissivityReflected Temperature Compensation Organizing Your Data File ManagementUploading Data to the Imager Uploading Data to Your ThermoView Ti30 ImagerEditing Data Before Upload RTC OFF Analyzing Your Data Single Image ScreenScale Limits Sample Image at Original Scale Limits Sample Image at Original Isotherm Setting IsothermsTemperature Table Tab Additional Image Analysis ToolsTemperature Table Profile TabHistogram Tab Profile TabMenu Bar New FolderThermoView Imager Info ExitFahrenheit CelsiusExport Temperature Table Export ImageCreate Report HistogramCopy Profile Chart ContentsCascade Tile HorizontalReporting Your Findings Thermographic ReportImager Accuracy Chart Appendix a Technical ReferenceImager Reading Error vs Source DS Typical Emissivity ValuesAluminum Unoxidized Ni-Cu Gob Why use noncontact infrared thermometers? Appendix B Infrared Theory Q&AHow does IR work? How to assure accurate temperature measurement? EmissivityDistance to spot ratio Field-of-viewHow to take temperature measurement? What are the most popular applications?Glossary Background Temperature BlackbodyCalibration Calibration SourceDisplay Resolution DriftEMI/RFI Noise Far FieldFocus Point or Distance Full ScaleFull Scale Accuracy Gray BodyLaser LoopMicron or µm Minimum spot sizeOptical Resolution Non-Gray BodyOptical Pyrometer Pyroelectric DetectorReflected Temperature Compensation ResolutionRelative Humidity RepeatabilityStorage Temperature Range TemperatureTemperature Coefficient or Ambient Derating Spectral ResponseTemperature Resolution Thermal ShockTime Constant Transfer Standard