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testo 876 · Thermal imager

Instruction manual

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Summary of Contents for 876

Page 1: ...testo 876 Thermal imager Instruction manual ...

Page 2: ...2 ...

Page 3: ...erview 11 4 2 Basic properties 13 5 First steps 14 5 1 Commissioning 14 5 2 Getting to know the product 16 6 Using the product 21 6 1 Menu functions 21 6 1 1 Measuring functions 21 6 1 2 Image gallery 24 6 1 3 Scale 25 6 1 4 Display 26 6 1 5 Emissivity 26 6 1 6 Palette 29 6 1 7 Configuration 29 6 2 Measuring 33 7 Maintaining the product 36 8 Tips and assistance 38 8 1 Questions and answers 38 8 2 ...

Page 4: ...e product Warnings Always pay attention to information that is marked by the following warnings with warning pictograms Implement the specified precautionary measures Representation Explanation NOTICE indicates circumstances that may lead to damage to the products Symbols and writing standards Represen tation Explanation Note Basic or further information 1 2 Action more steps the sequence must be ...

Page 5: ...asurements 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 ...

Page 6: ...station Caution Rechargeable battery may be hot During longer breaks remove the battery from the instrument to avoid exhaustive discharge 2 3 Protecting the environment Dispose of faulty rechargeable batteries spent batteries in accordance with the valid legal specifications At the end of its useful life send the product to the separate collection for electric and electronic devices observe local ...

Page 7: ...ction processes Basic properties 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 integrated digital camera dynamic motorfocus 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 regula...

Page 8: ...es Image display 3 5 LCD with 320 x 240 pixels Foldable by 90 and rotable by 180 Display options Infrared image real image infrared and real image Video output USB 2 0 Video stream 9 Hz Colour palettes 4 options Measuring Characteristic Values Temperature range can be changed 20 100 C 0 280 C 4 212 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 ...

Page 9: ... 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 9 x 7 Aperture 1 0 Audio functions Characteristic Values Sound recording playback via headset included in delivery Recording period max 30 s per image Housing Feature Val...

Page 10: ...ing temperature 15 40 C 5 113 F Storage temperature 30 60 C 22 140 F Air humidity 20 80 RH not condensing Enclosure rating of the housing IP54 Interface terminals closed battery connected lens mounted Physical features Characteristic Values Weight 900 g including battery Dimensions 210 x 85 x 97mm 8 27 x 3 35 x 3 82 Tripod mounting Yes with adapter included in delivery Vibration 2 G Standards test...

Page 11: ... images 3 Lens infrared camera to record thermographic images Exchangeable lens 4 Rotating ring Manual focussing for manual focussing 5 Lens lock ring 6 Metric thread To fasten a tripod Do not use table tripods danger of pipping over 7 Motor focus switch to switch the motor ficus on off 8 Battery compartment with battery shaft buffer battery shaft memory card shaft 9 Wrist strap 10 Fixing ring for...

Page 12: ...status LED Status LED off no mains unit connected flashes mains unit connected and rech batt is being charged lights mains unit connected and rech batt charging completed 13 Left right speed dialling key xy Call up function The display shows which function is assigned to the speed dialling key 14 Display foldable by 90 and rotable by 180 When the camera is switched on the display remains active ev...

Page 13: ...may be required 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 IV for infrared image with attached re...

Page 14: ...rt 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 The arrows show that the setting can be changed 3 Move Joystick up down ...

Page 15: ...wer socket The camera starts automatically The rech batt can be recharged with the camera switched on or off This does by no means influence the time required to charge the battery Charging of the rech batt is started The charge status is indicated by the status LED 3 LED flashes Charging in process LED lights Battery charged charging process finished 4 Charge the rech batt completely then disconn...

Page 16: ...tting to know the product Adjusting the hand strap 1 Open the velcro fastening 2 Loosen the strap 3 Match the hand strap by loosening or fastening the strap Insert the memory card SDHC cards SD High Capacity are not supported 1 Open the rech batt cover on the underside of the camera 2 Push the memory card SD card into the card slot 1 To remove the memory card Press on the memory card to release th...

Page 17: ...g up 1 Turn lens lock ring anticlockwise to the stop approx 2 cm 2 Remove lens 3 Insert the new lens thereby take care to align the white markings on lens and instrument to each other 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 Turn the lens ring clockwise to the stop place the lens in the container and close it Swit...

Page 18: ...tor focus Slide the Motor focus switch towards the hand strap Move the Motor focus controller until the image is correctly focussed Recording freeze save an image Press Trigger The image is frozen still If the image is to be saved press the speed selection key Folder to set the desired memory location see Create new folder page 25 The IR image or the IR real image is displayed Infrared image is sa...

Page 19: ...he 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 image or infrared real image 1 Palette Change colour palette for the infrared image Emissivity Set emissivity and reflected temperature Scale Set scale limits Adjustment Perform manual zero point cali...

Page 20: ...u items that are marked with an arrow Move Joystick to the right Move Joystick to the left to return to the previous menu level Press OK to select the function 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 ...

Page 21: ...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 OK Measurement Cold Hotspot OK Select left or right Coldspot or Hotspot quick select button to a...

Page 22: ...wer limit value temperature range or upper limit value The selected option has an orange border 3 Move Joystick up down to change the colour or 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 Moisture The ambient temperature and humidity values entered manually are use...

Page 23: ... be selected The sun s radiation intensity measured with an external instrument can be entered for documentation purposes This value is saved with the IR image If this function is enabled the shortcut buttons are permanently assigned the functions Intensity and Hotspot The radiation intensity value is shown at the top of the display 1 OK Measurement functions OK Solar OK The Solar dialogue box is ...

Page 24: ...as preview images image overview The image saved last is shown directly behind the folders Optional 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 folder you must change back into Single Image 2 Navigate In page scroll Move Joystick up down to change between the pages In...

Page 25: ...ck 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 6 1 3 Scale Set scale limits You can choose between auto scaling continuous automatic adjustment to the...

Page 26: ...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 down to select the desired option The selected option has an orange border 3 Activate or deactivate option with OK 4 Confirm settings wit...

Page 27: ...ials These values can be used as orientation with the user defined settings 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 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 ...

Page 28: ...hermometer 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 The designation of the materials in the selection list is configured during commissioning of the thermal imager in the language s...

Page 29: ...ment view 6 1 6 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 select the desired option 3 Confirm the selection with OK 6 1 7 Configuration Time date Time and date can be set Time and date format are automatically set based on the selected instrument lan...

Page 30: ... With use of another high temperature filter the specified accuracy is not ensured OK Configuration OK Optics OK Using the Protection glass option you can set whether an infrared protection glass is used or not Ensure the correct setting to prevent corruption of the measurement results Press OK to activate or deactivate the Protection glass option With the option activated the protection glass sym...

Page 31: ... the email sent to you Activate deactivate function OK Configuration OK SuperResolution OK When you save an image an information window with the image file name is displayed If SuperResolution is activated SuperResolution is also displayed after the file name Power save options Options can be set to extend the rechargeable battery running time 1 OK Configuration OK Power save options OK The Power ...

Page 32: ...ttings The volume of the audio playback and recording can be set 1 OK Configuration OK Audio settings OK The Audio settings dialogue is opened 2 Move Joystick up down to select the desired option The selected option has an orange border 3 Move Joystick left right to change the setting 4 Confirm the settings with Apply Format The memory card can be formatted During the formatting all saved data on ...

Page 33: ... significant measurement results Humidity measurement Pivot the separate humidity measuring instrument slightly to shorten the adjustment time Avoid sources of interference e g breathed air Building thermography investigating the building shell Considerable temperature difference between inside and outside required ideal 15 C 27 F Consistent weather conditions no intensive sunlight no precipitatio...

Page 34: ...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 25 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 Recording playing audio comments It is onl...

Page 35: ...nge audio comment 1 Selection position from which the recording should be overwritten Begin playback with and stop at the desired point 2 Use to overwrite the recording as of the desired point Delete recording Press The complete recording is deleted Exit Audio dialogue Press ESC ...

Page 36: ...slot 3 Pull the rech batt completely out of the batty shaft 4 Slide the rech batt completely into the battery shaft until it clicks into place The camera starts automatically Clean thermal imager If the 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 infrar...

Page 37: ... 1 Open the rech batt cover on the underside of the camera 2 Pull the battery holder together with the buffer battery out of the battery shaft 3 Remove the exhausted battery from the holder and insert new battery type CR 1632 NOTICE Incorrectly inserted batteries can damage the product When inserting the batteries observe the polarity label on inside of cover 4 Push the battery holder into the bat...

Page 38: ... Insert new memory card Error No lens wrong lens is shown 1 Switch off thermal imager 2 Check lens 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 1 Switch off thermal ima...

Page 39: ...ripod 0554 8804 Mains unit 0554 8808 SD card 0554 8803 USB cable 0449 0047 Adhesive emission tape 0554 0051 Automotive charging adapter 0554 8817 Retrofit telephoto lens Testo Service ISO calibration certificate for thermal imager Calibration points 0 C 25 C 50 C in measuring range 20 C 100 C Calibration points at 0 C 100 C 200 C in measuring range 0 C 280 C Freely selectable calibration points in...

Page 40: ...0970 8760 en 03 V01 30 en GB ...

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