Testo 875 Infrared Camera User Manual - Enviro
Contents
1. y Changing lens testo 875 2 only Only lenses that were adjusted to the respective thermal imager can be used The serial number on the lens must match the serial number of the instrument see Optics page 29 gt Switch instrument off before changing the lens gt To keep the lens from falling out Hold the instrument with the lens pointing up 1 Turn lens lock ring anticlockwise to the stop approx 2 cm 17 5 First steps 18 Remove lens 3 Insert new lens taking care to align the white markings on the lens and the instrument with one another 4 Turn the lens lock ring clockwise to the stop Always store lenses not in use in the container designed for this in the case gt Turn the lens ring clockwise to the stop place the lens in the container and close it Switch the imager on off 1 Remove protection cap from the lens 2 Press The start screen appears on the display The type designation of the imager and the firmware version are shown The measurement view is opened after the warm up period The imager performs an automatic zeroing approx every 60 sec This can be recognized by means of a click The image is frozen briefly when this occurs gt To switch off Press 0 The display goes out and the imager is switched off Manually focusing the image gt Turn Rotating ring of the lens until the image is in focus Record freeze save im2. xxx is shown instead of the reading Reading cannot be calculated gt Check parameter settings for plausibility If we could not answer your question please contact your dealer or Testo Customer Service For contact details see the rear side of this document or the web page www testo com service contact 8 Tips and assistance Accessories and spare parts Description Article no Lens protection glass 0554 8805 Sun Shield 0554 8806 SoftCase 0554 8814 Rech batt 0554 8802 Desktop charging station 0554 8801 Tripod 0554 8804 Mains unit 0554 8808 SD card 0554 8803 USB cable 0449 0047 ISO calibration certificate for thermal imager 0520 0489 e Calibration points 0 C 25 C 50 C in measuring range 20 C 100 C 0520 0490 e Calibration points at 0 C 100 C 200 C in measuring range 0 C to 280 C For further accessories and spare parts please refer to the product catalogues and brochures or look up our website www testo com 35 0970 8750 en 01 VO1 00 en GB
3. 2 Confirm with OK or cancel process with Esc Factory reset The instrument settings can be reset to the factory settings Time date and country settings are not reset Please note After a factory reset the numbering of images begins anew When saving images images that have already been saved and have the same number are overwritten gt Transfer all saved images onto a PC before performing a reset to prevent possible overwriting 1 OK Configuration OK Factory settings OK A confirmation request appears as to whether the instrument should really be reset to the factory settings 2 Confirm reset with OK or cancel process with Esc Measuring Important framework conditions Please observe the following framework conditions in order to obtain significant measurement results Humidity measurement testo 875 2 only e Gently wave the separate dewpoint measuring instrument to shorten the equalization period Avoid sources of interference e g breathed air Building thermography investigating the building shell e Considerable temperature difference between inside and outside required ideal gt 15 C gt 27 F e Consistent weather conditions no intensive sunlight no precipitation no strong wind To ensure the highest level of accuracy the imager requires an equalization period of 5 minutes after being switched on 6 Using the product Important settings Before re
4. E testo 875 Thermal imager Instruction manual 1 Contents Contents Contents oaa eea aasa aean eaaa eaaa a anateua aare 3 Safety and the envirOnMeNt nnnnnccccnnniccnnnnnnnnnncnnnn errar rre 4 2 1 Aboutthis document iia a tad 4 22 ensure SY ecaeD 5 2 3 Protecting the environment susirasi iinei lana li yan sana 6 ee NT D a REH HHHH 7 Ji US andas 7 3 2 Technical data iii a e ek n EW B R 8 Product descriptiON ccoo iria dni i 12 Ai Oe MIWiiiaica i oe Be aa 12 4 2 Basic Propecia di t 13 EISESTOOS 0 a a Pe 14 51 COMMISSION IN Qi ta a dida 14 5 2 Getting to know the pirfOdUC i4j allkl kalas deraa ieii 16 Using the PROUO dui td 21 Gets Menu funcions iio ica areas n Buk e WUR S GA 21 6 1 1 Measuring functions 6 1 2 Image gallery 6 1 3 Scale 6 1 4 Display 6 1 5 Emissivity 6 1 6 Palette G7 CONQUE il 28 6 2 MEASUMING coria aia aida 30 Maintaining the product kK KEllllu Ek kk kake ek kk kk k KAKA KK KA KA KAKA 32 WPS ANG ASSIS CANCE i ki asec 2 aise seca fase he nana senda kad pan d na kak dela k an k k k 34 8 1 Questions and ANSWETS 00 0 0 eee ee nono nono cnn nan n cr kk kk kk kK KA 34 8 2 Accessories and Spare parts l l kk ek 35 2 Safety and the environment Safety and the environment About this document Use gt Please read this documentation through carefully and familiarize yourself with the prod
5. 77 Gypsum 20 C 0 90 Glass 90 C 0 94 Rubber hard 23 C 0 94 Rubber soft grey 23 C 0 89 Wood 70 C 0 94 Cork 20 0 70 Radiator black anodised 50 C 0 98 Copper slightly tarnished 20 C 0 04 Copper oxidized 130 C 0 76 Plastics PE PP PVC 20 C 0 94 Brass oxidized 200 C 0 61 Paper 20 C 0 97 Porcelain 20 C 0 92 Black paint matt 80 C 0 97 Steel heat treated surface 200 C 0 52 Steel oxidized 200 0 79 Clay burnt 70 C 0 91 Transformer paint 70 C 0 94 Brick mortar plaster 20 C 0 93 Reflected temperature Using this offset factor the reflection is calculated out due to the low emissivity and the accuracy of the temperature measurement with infrared instruments is improved In most cases the reflected temperature is identical to the ambient air temperature Only when objects with strong emissions with much higher temperatures such 26 6 Using the product as ovens or machines are in the proximity of the object being measured should the radiation temperature of theses heat sources be determined and used e g using a globe thermometer The reflected temperature has only little effect on objects with high emissivity Set emissivity reflected temperature You can choose between a user defined emissivity and 8 materials with recorded emissivities The reflected temperature can be set individually 1 The designation of the materials in the selection l
6. can be entered for informational purposes evaluation by means of IRSoft software 2 Move Joystick up down to select the desired option The selected option has an orange border 3 Confirm the selection with OK The selected number is highlighted orange 4 Move Joystick up down to set the desired value Move Joystick right left to change between the numbers 5 Confirm the entry with OK 6 Confirm the settings with Apply Measuring range The measuring range can be set to adapt to the respective area of application 1 OK Measurement OK Measurement range 2 Select the desired temperature range and confirm with OK e Depending on the scene temperature the measuring range 1 may be undershot or exceeded In this case or is shown instead of the readings gt If this occurs change the measuring range 6 1 2 6 Using the product Image gallery Show images 1 OK Image gallery OK Show images OK The Folder dialogue is opened The folder name of the opened folder is displayed in the header ROOT designates the base folder top level The saved data is shown as preview images image overview The image saved last is shown directly behind the folders Optional gt Press the right Page scroll quick select button to change to page scroll In page scroll you can navigate in groups of 3 x 3 images folders page by page To select open an image f
7. image with attached real image VI for real image YYYYY 5 digit consecutive number ZZZ file extension BMT for infrared image without with attached real image BMP for real image 13 5 First steps 14 First steps Commissioning Connect rechargeable battery The imager is delivered with a rechargeable battery that is inserted in the rechargeable battery slot but not connected gt Push the battery all the way into the rechargeable battery slot until this is flush with the bottom of the handle e thermal imager starts automatically Perform basic settings gt Remove the protective film from the display The start screen appears on the display The Landeseinstellungen Country settings dialogue is opened Instrument language Language and temperature unit Unit can be set 1 Move Joystick up down to select the desired option The selected option has an orange border 2 Confirm the selection with OK The selected setting is highlighted orange 1 The arrows show that the setting can be changed Move Joystick up down to change the setting Confirm the entry with OK Confirm the settings with bernehmen Apply oa a Fw Press 0 to switch off the thermal imager 5 First steps Initial charging of rechargeable battery The thermal imager is delivered with a partially charged battery Completely charge the battery before use gt Connect the country specific adapter
8. not condensing Enclosure rating of IP54 Interface terminals closed battery the housing connected lens mounted Physical features Characteristic Values Weight 900 g including battery Dimensions 152 x 108 x 262 mm 5 98 x 4 17 x 10 31 Tripod mounting Yes with adapter included in delivery Housing ABS Protection class IP 54 Vibration max 2G 3 Specifications PC software Characteristic Values System Operating system Windows XP Service requirements Pack 2 or Windows Vista USB 2 0 interface Standards tests warranty Characteristic Values EU Directive 2004 108 EC Vibration IEC 60068 2 6 Warranty 2 years warranty conditions see website www testo com warranty 11 4 Product description 12 Product description Overview Product components 1 Display 2 Control keys Key Functions 0 Switch the imager on off OK and Joystick Press OK Open menu confirm selection setting Move OK up down right left Joystick function Select functions navigate Esc Cancel action Left right xy quick select button Call up a function The function assigned to the quick select button at any one time is shown in the display 3 Instrument rechargeable battery lock release button 4 2 4 Product description 4 Metric thread For fastening the included tripod adapter Do not use deskt
9. overheating immediately remove the rechargeable battery from the measuring instrument charging station Caution Rechargeable battery may be hot 2 3 Protecting the environment gt Dispose of faulty rechargeable batteries spent batteries in accordance with the valid legal specifications gt At the end of its useful life send the product to the separate collection for electric and electronic devices observe local regulations or return the product to Testo for disposal 3 Specifications Specifications Use The testo 875 is a handy and robust thermal imager It opens the door to contactless determination and illustration of the temperature distribution on surfaces for you Typical areas of application are e Building inspection heating ventilation and air conditioning trade company technicians engineering offices experts Energy evaluation of buildings e Preventative maintenance servicing Mechanical and electrical inspection of systems and machines Production monitoring quality assurance Monitoring production processes The testo 875 is available in several versions which are tailored to various usage requirements e testo 875 1 High quality wide angle lens 32 x 23 detector 160 x 120 manual focus 2 GB SD card for approx 1000 images minimum focus distance 10 cm e testo 875 2 High quality wide angle lens 32 x 23 detector 160 x 120 manual focus 2 GB SD card for approx 1000 images minimu
10. required for the existing mains to the mains unit 1 Open the cover on the left side of the thermal imager 1 2 Connect the mains unit to the mains socket 6 2 875 eS testo Ed 3 Connect the mains plug to a mains socket The thermal imager starts automatically e When charging the rechargeable battery the imager can 1 remain switched on or be switched off This has no effect on the length of the charging process The charging of the rechargeable battery begins The charge status is indicated on the status LED LED flashes Charging in process LED lights up Battery charged charging process finished 4 Charge the rechargeable battery completely then disconnect the instrument from the mains unit After the initial charging of the battery the thermal imager is ready for operation Charging the battery is also possible using a desktop charging station accessory 15 5 First steps 5 2 16 Getting to know the product Insert the memory card 1 Open the cover on the left side of the thermal imager 2 Insert memory card SD card into the card slot SD 1 gt To remove the memory card Press on the memory card to release the lock Mount remove infrared protection glass Installation 1 Attach the protection glass fastened to the red mounting ring to the lens and turn the mounting ring clockwise to the stop 2 Remove the red mounting ring
11. temperatures greater than 500 C during operation This may lead to serious damage to the detector The manufacturer accepts no warranty for this type of damage to the detector gt The objects to be measured or the measurement environment may also pose risks Note the safety regulations valid in your area when performing the measurements Do not store the product together with solvents Do not use any desiccants Carry out only the maintenance and repair work on this instrument that is described in the documentation Follow the prescribed steps exactly Use only original spare parts from Testo Improper use of rechargeable batteries can lead to destruction or injuries by means of current surges fire or escaping chemicals The following instructions must be observed to avoid such hazards Only use in accordance with the directions in the instruction manual e Do not short take apart or modify Do not expose to heavy impacts water fire or temperatures above 60 C Do not store in the proximity of metal objects Do not use leaky or damaged rechargeable batteries In the event of contact with battery acid Thoroughly wash affected area with water and consult a doctor if necessary Only charge in the instrument or the recommended charging station Immediately stop the charging process if this is not completed in the given time 2 Safety and the environment Inthe event of improper function or signs of
12. 212 F 32 536 F Accuracy 2 C 3 6 F or 2 of reading whichever is the greater Reproducibility 1 C 1 8 F or 1 whichever is the greater Measuring point minimum diameter Standard lens 10 mm at 1m Telephoto lens 3 mm at 1m On time time to image 30s Measuring functions Standard measurement 1 point Cold Hotspot testo 875 2 Display of the surface moisture distribution via manual entry of the dewpoint Compensation for manual reflected temperature Setting emissivity 0 01 1 00 Image storage Characteristic Values File format bmt Export options in bmp jpg csv Removable memory SD card Memory capacity Scope of delivery 2 GB approx 1000 images Lens Characteristic Values Standard lens 32 x 23 Telephoto lens testo 9 x 7 875 2 optional Aperture 1 0 Power supply 3 Specifications Characteristic Values Battery type Fast charging Li ion battery can be changed on site Operating time approx 4 h at 20 30 C 68 86 F Charging option In instrument in charging station optional Mains operation Yes with mains unit 0554 8808 Mains unit output 5V 4 A voltage Ambient conditions Characteristic Values Operating 15 40 C 5 113 F temperature Storage 30 60 C 22 140 F temperature Air humidity 20 80 RH
13. Changing the battery To prevent losing the instrument settings Only change the rechargeable battery when a buffer battery is inserted in the instrument or the mains unit is connected 1 Press lock release button The rechargeable battery is released and sticks out a little from the rechargeable battery slot The locking function keeps the battery from falling out 2 Completely remove the battery from the rechargeable battery slot 3 Insert a new battery into the rechargeable battery slot until this is flush with the bottom of the handle The thermal imager starts automatically Clean thermal imager gt Ifthe housing of the thermal imager is dirty clean it with a damp cloth Do not use any aggressive cleaning agents or solvents Weak household cleaning agents and soap suds may be used Cleaning lens infrared protection glass gt Large dust particles can be removed with a clean optical cleaning brush available in specialized photography shops gt Use a lens cleaning cloth for slight contamination Do not use rubbing alcohol Change buffer battery To prevent losing the instrument settings Only change the buffer battery when a charged rechargeable battery is inserted or the mains unit is connected 1 Open the cover on the left side of the thermal imager 2 Remove battery holder including buffer battery from the battery slot 7 Maintaining the product 3 Remove empty battery from the holder and ins
14. age 1 Press Trigger The image is frozen fixed image If the image is to be saved the desired storage location can be set using the left Folder quick select button see Select the storage location folder page 31 testo 875 1 Infrared image is shown Infrared image is saved testo 875 2 Infrared image or infrared real image is shown Infrared image is saved real image is saved in the same file as an attachment to the infrared image e Real image is shown Real image is saved 5 First steps 2 Save image Press Trigger again or Press OK or Discard image Press ESC Getting to know the quick select buttons The quick select buttons can be assigned functions that are required often so that you can call them up directly Factory settings e Left quick select button Scale Right quick select button Palette testo 875 1 or Image type testo 875 2 Changing assignment of the quick select buttons 1 Move Joystick left or right to open the Configure key function list for the left or right quick select button 2 Move Joystick up down to select the desired function Function Description Image type Change display mode Infrared image real testo 875 2 only image or infrared real image h Palette Change colour palette for the infrared image Emissivity Set emissivity and reflected temperature Scale Set scale limits Adjustment Perform manual zero point
15. calibration 3 Press OK to activate the selected function 1 Real image and infrared lens have a different angle of view due to the spacial separation The image areas therefore do not correspond completely parallax error 19 5 First steps Navigating in the menu 1 Press OK button The Menu is opened 2 Select navigation function e Move Joystick up or down to select the menu item e Press OK to confirm the selection Or for menu items that are marked with an arrow Move Joystick to the right e Move Joystick to the left to return to the previous menu level e Press OK to select the function e Press ESC to cancel the process and change to Measuring Mode Depending on the selected menu item press OK to perform a setting or open a submenu dialogue see Menu functions page 21 20 6 1 6 1 1 6 Using the product Using the product Menu functions Measuring functions 1 point measurement The 1 point measurement is the standard measuring function If this is activated 1 all available options can be selected via the quick select buttons gt OK Measurement OK 1 point measurement OK testo 875 2 only If the 1 point measurement is activated the crosshairs can be moved using the Joystick on frozen and saved images to read off the individual temperatures With saved images the 1 point measurement must be activated via the menu for the respective opened ima
16. cording an image check whether the protection glass option is set correctly to prevent corruption of the measurement results see Optics page 29 Before saving an image ensure that it is focused correctly in focus see Manually focusing the image page 18 Images that are not in focus cannot be corrected retroactively To obtain precise readings the emissivity and reflected temperature must be set correctly see Set emissivity reflected temperature page 27 A subsequent adjustment is possible via the PC software as required With an activated auto scaling the colour scale is continuously adapted to the min max values of the current measurement image The colour that is to be assigned to a specific temperature thereby changes constantly To be able to compare multiple images by means of the colouring the scaling must be manually set to fixed values see Scale page 24 or must be subsequently adjusted to uniform values using the PC software Select the storage location folder 1 While an image is frozen fixed image Press the left Folder quick select button The Folder dialogue is opened To create a new folder see Create new folder page 23 2 Select the desired folder with the joystick and open with OK The folder name of the opened folder is displayed in the header 3 Press left Apply quick select button to select the opened folder 31 7 Maintaining the product 32 Maintaining the product
17. down to select the desired option The selected option has an orange border d 3 Activate Y or deactivate bo option with OK 4 Confirm settings with the Apply quick select button or Discard settings with Esc Emissivity Emissivity The emissivity describes the capability of a body to emit electromagnetic radiation This is material specific and must be adapted for correct measurement results Non metals paper ceramic gypsum wood paints and coatings plastics and food have high emissivity which means that the surface temperature can be easily measured using infrared Because of their low or non uniform emissivity bright metals and metal oxides are only somewhat suited for infrared measurement You must anticipate highly inaccurate measurements A remedy for this is coatings that increase the emissivity e g paint or emission adhesive art no 0554 0051 which must be applied to the object being measured The following table gives typical emissivities of important materials These values can be used as orientation with the user defined settings 25 6 Using the product Material material temperature Emissivity Aluminium bright rolled 170 C 0 04 Cotton 20 C 0 77 Concrete 25 C 0 93 Ice smooth 0 C 0 97 Iron emery ground 20 C 0 24 Iron with casting skin 100 C 0 80 Iron with rolling skin 20 C 0
18. elect the desired option 3 Confirm the selection with OK Configuration Time date Time and date can be set Time and date format are automatically set based on the selected instrument language 1 OK Configuration OK Time date OK The Set time date dialogue is opened 2 Move Joystick up down to select the desired option The selected option has an orange border Lo 3 Confirm the selection with OK The selected number is highlighted orange H 4 Move Joystick up down to set the value Move Joystick right left to change between the numbers 5 Confirm the entry with OK 6 Confirm the settings with Apply Country settings Instrument language and temperature unit can be set 1 OK Configuration OK Country settings OK The Country settings dialogue is opened 2 Move Joystick up down to select the desired option The selected option has an orange border J 3 Confirm the selection with OK The selected setting is highlighted orange 0 4 Move Joystick up down to change the setting 6 Using the product 5 Confirm the entry with OK 6 Confirm the settings with Apply Optics The lenses adjusted to the instrument are shown Only the lenses that are shown may be used gt OK Configuration OK Optics OK Using the Protection glass option you can set whether an infrared protection glass is used or not Ensure the cor
19. ert new battery type CR 1632 Incorrectly inserted batteries can lead to damage of the product gt When inserting the batteries observe the polarity label on the battery holder 4 Insert battery holder into the battery slot 33 8 Tips and assistance 34 Tips and assistance Questions and answers Question Possible causes solution Message Backup battery empty or not present is shown 1 Confirm the message with OK 2 Change buffer battery see Change buffer battery page 32 Error No memory card inserted is shown Memory card defective or not inserted 1 Confirm the message with OK 2 Check or insert memory card Error Memory card full is shown Insufficient memory present Confirm the message with OK Insert new memory card Error No lens wrong lens is shown Switch off thermal imager Check lens V N gt JN gt Change lens if necessary Message Charging not possible is shown Ambient temperature is outside the permissible range for charging the battery 1 Confirm the message with OK 2 Keep to the permissible ambient temperature Error Permissible instrument temperature exceeded is shown Switch off thermal imager N Let instrument cool off and keep to the permissible ambient temperature Or is shown instead of the reading Reading is outside of the measuring range gt Change measuring range
20. from the protection glass Removal 1 Attach the red mounting ring to the protection glass 2 Turn the mounting ring anticlockwise and remove the protection glass After mounting removing the protection glass activate or deactivate the Protection glass option Optics page 29 If this option is set incorrectly the stated measuring accuracy is not guaranteed Mount tripod adapter Using the included tripod adapter the imager can be fastened to the testo tripod accessory or to a commercially available standard tripod With the tripod adapter mounted the battery cannot be changed 1 Place the tripod adapter on the lower end of the handle and screw on using the included Allen key ISO 2936 size 4 2 Slide thermal imager into the fastening plate of the testo tripod and lock or fasten it to the commercially available standard tripod screw type fastening 5 First steps Mount Sun Shield The Sun Shield increases the readability of the display with a high exposure to light gt Set the Sun Shield on the thermal imager from above 1 and pull both sides of the Sun Shield down around the display 2 Mounting Softcase d The Softcase combines the functions of instrument protection Sun Shield and carrying function strap 1 Set the Softcase on the imager from above 1 and pull both sides of the Softcase down around the display 2 2 Guide Velcro strip through the two plates 3 and close 4
21. ge Cold Hotspot Cold Hotspot shows the minimum and maximum temperature point on the display If Cold Hotspot is activated 7 the quick select buttons with the Coldspot and Hotspot functions can be permanently assigned and can no longer be changed With frozen images the crosshairs can be moved and the min max point is visible The min max point is not saved With saved images Cold Hotspot must be activated for the respective opened image gt OK Measurement Cold Hotspot OK gt Select left or right Coldspot or Hotspot quick select button to activate deactivate the respective function 21 6 Using the product 22 Humidity testo 875 2 only The surface humidity is calculated using the manually entered dewpoint temperature and the measured surface temperatures In the display the areas that are at risk of developing mould are shown using a special colour palette Colour Surface moisture Assessment green 0 64 noncritical yellow 65 80 potentially critical orange red gt 80 Critical If this function is activated 7 the quick select buttons are permanently assigned the Dewpoint and Emissivity functions The dewpoint temperature is shown at the upper edge of the display 1 OK Measurement OK Humidity OK The Dewpoint dialogue is opened The dewpoint temperature can be entered In addition the values for ambient temperature and ambient humidity
22. ist is configured during commissioning of the thermal imager in the language selected by the user A translation does not occur in the event of subsequent changeover of the language in the instrument Using the PC software other materials can be imported into the instrument from an existing list The language for the materials here depends on the operating system language of the PC OK Emissivity OK The Emissivity dialogue is opened Move Joystick up down to select the desired material The selected material is highlighted orange D The corresponding emissivity is shown to the right next to the material Move Joystick to the right to switch to the setting of the emissivity only available when selecting User defined or to Reflected temp The selected option has an orange border D Confirm the selection with OK The selected number is highlighted orange E Move Joystick up down to set the desired value Move Joystick right left to change between the numbers Confirm the entry with OK Confirm the settings with Apply The changes are saved The selected emissivity is shown at the bottom right in the display in measurement view 27 6 Using the product 6 1 6 6 1 7 28 Palette Change colour palette for the infrared image You can choose between 4 existing palettes The currently activated option is marked with a tick 1 OK Palette OK 2 Move Joystick up down to s
23. m focus distance 10 cm integrated digital camera exchangeable lens display of surface moisture distribution Export control Thermal imagers may be subject to the export restrictions of the European Union Please observe the national regulations for export control when exporting 3 Specifications 3 2 Technical data Infrared image output Characteristic Values Field of vision min focusing distance Standard lens 32 x 23 0 1 m 0 33 ft testo 875 2 only optional Telephoto lens 9 x 7 0 5 m 1 64 ft Thermal sensitivity NETD lt 110 mK at 30 C 86 F Geometric resolution Standard lens 3 3 mrad Telephoto lens 1 mrad Refresh rate 9 Hz Focus manual Detector type FPA 160 x 120 pixels a Si Spectral range 8 14 um Visual image output testo 875 2 only Characteristic Values Field of vision min focusing distance 33 x 25 0 4 m 1 31 ft Image size 640 x 480 pixels Refresh rate 8 to 15 Hz Image presentation Characteristic Values Image display 3 5 LCD with 320 x 240 pixels Display options testo 875 1 Infrared image testo 875 2 Infrared image real image infrared and real image Video output USB 2 0 Video stream 9 Hz Colour palettes 4 options Measuring 3 Specifications Characteristic Values Temperature range can be changed 20 100 C 0 280 C 4
24. older you must change back into Single Image Navigate In page scroll Move Joystick up down to change between the pages In single image Move Joystick up down left right to select a preview image a folder orange border Open selected folder with OK In single image Press OK to open selected preview image Press Gallery to return to the image overview Delete image 1 3 In single image Select image orange border or select and open image Press Delete to delete the selected or open image A confirmation request appears as to whether the image should really be deleted Confirm with OK or cancel process with Esc Create new folder 1 In the Folder dialogue Select New Folder with the joystick and confirm with OK The Folder name dialogue is opened Name folders Use the Joystick to select the desired letters and confirm with OK 23 6 Using the product 6 1 3 24 The folder name can consist of up to 8 characters Incorrect entries can be deleted using the right 4C quick select button 3 Press left Create Folder quick select button to create the folder Erase all 1 OK Image gallery OK Erase all OK A confirmation request appears as to whether all files on the memory card should be deleted Folders are not deleted 2 Confirm erase with OK or cancel process with Esc Scale Set scale limits You can choose between auto scaling c
25. ontinuous automatic adjustment to the current min max values and manual scaling The scale limits can be set within the activated measuring range see Measuring range page 22 All temperatures that undershoot or exceed the limit value are shown in the colour of the limit value depending on the selected colour palette see Palette page 28 Temperature ranges that are not relevant can thus be hidden 1 OK Scale OK The Set scale dialogue is opened 2 Move Joystick left right to select the desired option Auto scaling Ci min value 1 temperature range or max value 1 The selected option has an orange border Lo 3 With the selection of min value temperature range or max value Move Joystick up down to change the value s Changes are applied immediately so that the effects on the display of the infrared image can be checked directly 4 Close dialogue with OK or Esc The changes are saved 6 1 4 6 1 5 6 Using the product Display Select display options The presentation can be adapted by means of showing hiding the following elements Crosshairs temperature scale and quick select buttons Hidden function keys can be shown again by pressing a quick select button The first press of the button shows the function keys again To trigger a function the button must be pressed again 1 OK Display OK The Display options dialogue is opened 2 Move Joystick up
26. op tripods danger of tilting 5 Right interface terminal Not assigned Digital camera lens For recording visual images testo 875 2 only 7 Infrared camera lens For recording thermography images Exchangeable lens testo 875 2 only 8 Rotating ring Manual focusing For focusing manually 9 Lens lock ring 10 Trigger For recording freezing saving images 11 Left interface terminal Memory card slot USB interface Mains socket for connecting the included mains unit Buffer battery slot 12 Status LED off no mains unit connected flashes mains unit connected and rechargeable battery charging lights up mains unit connected and battery charging process completed Basic properties Voltage supply The power is supplied to the instrument via an exchangeable rechargeable battery or via the included mains unit With an attached mains unit the power is supplied automatically via the mains unit and the instrument s rechargeable battery is charged only at ambient temperatures from 0 to 45 C Charging the battery is also possible using a desktop charging station accessory The instrument is equipped with a buffer battery type CR 1632 to maintain the system data during an interruption in the power supply e g when the battery is changed File formats and file names The images are saved according to the following pattern XX_YYYYY ZZZ XX IR for infrared image without attached real image IV for infrared
27. rect setting to prevent corruption of the measurement results gt Press OK to activate or deactivate n the Protection glass option With the option activated the protection glass symbol 2 is shown in the bottom right of the display Power save options Options can be set to extend the rechargeable battery running time 1 OK Configuration OK Power save options OK The Power save options dialogue is opened 2 Move Joystick up down to select the desired option The selected option has an orange border LJ 3 Confirm the selection with OK LCD backlight The selected setting is highlighted orange and can be changed O gt Move Joystick up down to change the setting Confirm the entry with OK Switch off LCD or Power off imager The selected option can be activated or deactivated gt Press OK to activate zS or deactivate QO the function With the option activated the length of time until shut down can be set gt Move Joystick to the right and press OK Move Joystick up down to change the setting Confirm the entry with OK 4 Confirm the settings with Apply 29 6 Using the product 6 2 30 Format The memory card can be formatted During the formatting all saved data on the SD card is lost 1 OK Configuration OK Format OK A confirmation request appears as to whether the memory card should really be formatted
28. uct before putting it to use Pay particular attention to the safety instructions and warning advice in order to prevent injuries and damage to the products gt Keep this document to hand so that you can refer to it when necessary gt Hand this documentation on to any subsequent users of the product Warnings Always pay attention to information that is marked by the following warnings with warning pictograms Implement the specified precautionary measures Representation Explanation indicates circumstances that may lead to 7 damage to the products Symbols and writing standards Represen Explanation tation i Note Basic or further information Action more steps the sequence must be followed Action a step or an optional step ays Result of an action Menu Elements of the instrument the instrument displays or the program interface OK Control keys of the instrument or buttons of the program interface sall Functions paths within a menu ek Example entries 2 2 2 Safety and the environment Ensure safety gt Only operate the product properly for its intended purpose and within the parameters specified in the technical data Do not use any force Do not operate the instrument if there are signs of damage at the housing mains unit or feed lines The thermal imager must not be directed at the sun or other sources of intense radiation e g objects with
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