TESTO 876 Instruction Manual
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TESTO 876 Instruction Manual

Thermal imager
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testo 876 · Thermal imager
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  • Page 1 876 · Thermal imager Instruction manual...

  • Page 3: Table Of Contents

    1 Contents Contents Contents ....................3 Safety and the environment..............4 2.1. About this document ................4 2.2. Ensure safety...................5 2.3. Protecting the environment..............6 Specifications ..................7 3.1. Use ....................7 3.2. Technical data .................7 Product description................11 4.1. Overview..................11 4.2. Basic properties................13 First steps ....................14 5.1.

  • Page 4: Safety And The Environment

    2 Safety and the environment Safety and the environment 2.1. About this document > Please read this documentation through carefully and familiarize yourself with the product 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.

  • Page 5: Ensure Safety

    > 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.

  • Page 6: 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 regulations) or return the product to Testo for disposal.

  • Page 7: Specifications

    3 Specifications Specifications 3.1. The testo 876 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: • Building inspection: Energetic assessment of buildings, inspection of heating, ventilation and air conditioning systems.
  • Page 8 3 Specifications Characteristic Values Refresh rate Focus manual + motorized Detector type FPA 160 x 120 pixels, a.Si Spectral range 8 - 14 μm Visual image output Characteristic Values Field of vision/min. 33.2° x 25.2° / 0.4m (1.31ft.) focusing distance Image size 640 x 480 pixels Refresh rate...
  • Page 9 3 Specifications Characteristic Values Standard measurement (1-point), Cold-/ Measuring functions Hotspot, Display of the surface moisture distribution via manual entry of the ambient humidity/temperature, solar (manual entry of the radiation intensity), isotherm, min./max. on area Image storage Characteristic Values File format .bmt Export options in .bmp, .jpg, .csv Removable memory...
  • Page 10 900 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 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...

  • Page 11: Product Description

    4 Product description Product description 4.1. Overview Product components [Motor focus controller]: for motorized focussing. [Trigger]: for recording (freezing/saving) images. 2 Lens digital camera: to record visual images 3 Lens infrared camera: to record thermographic images. Exchangeable lens. Rotating ring Manual focussing: for manual focussing.

  • Page 12: Key Functions

    4 Product description 11 Control keys: Functions Switch the camera on/off [OK] Joystick • Press [OK]: Open menu, confirm selection/setting. • [OK] move up / down / right / left = Joystick-function: Select functions, navigate [Esc] Cancel action. 12 Interface terminal USB-interface, mains socket to connect the supplied mains unit, headset socket, status LED Status-LED: off (no mains unit connected), flashes (mains unit connected and rech.

  • Page 13: Basic Properties

    4 Product description 4.2. 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 40 °C).

  • Page 14: First Steps

    5 First steps First steps 5.1. Commissioning Contact the rechargeable battery The rech. batt. is included separately and must be inserted. > Slide the rech. batt. completely into the battery shaft, until it clicks into place. The camera starts automatically. Perform basic settings >...
  • Page 15 5 First steps Initial charging of rechargeable battery The camera is delivered with a partially charged battery. Completely charge the battery before use. > Connect the country-specific adapter required for the existing mains to the mains unit. 1. Open the cover of the interface terminal on the camera (1). 2.

  • Page 16: Getting To Know The Product

    5 First steps Rechargeable battery care: • Do not fully exhaust rechargeable batteries. • Store rechargeable batteries only in charged condition and at low temperatures, but not below 0°C (best storage conditions with a charge level of 50-80%, at an ambient temperature of 10-20°C, recharge completely before use).
  • Page 17 5 First steps 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 Protection glass option, Optics..., page 30. If this option is set incorrectly, the stated measuring accuracy is not guaranteed.
  • Page 18 5 First steps Manually focusing the image NOTICE Possible damage to the auto mechanism! > Only use Rotating ring with the motor focus switched off. > Slide [Motor focus switch] towards the lens (position: > Turn Rotating ring of the lens until the image is in focus. Focussing with the motor focus >...
  • Page 19 5 First steps • Real image is shown: Real image is saved. > Save image: Press [Trigger] once again, alternatively: Press [OK]. discard the 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.
  • Page 20 5 First steps 2. Select navigation/function: • Move Joystick up or down to select the menu item. • Press [OK] to confirm the selection. Or for menu items that are marked with an arrow (►): Move Joystick to the right. •...

  • Page 21: Using The Product

    6 Using the product Using the product 6.1. Menu functions 6.1.1. Measuring functions 1-point measurement 1-point measurement is the standard measuring function. If this is activated ( ), all available options can be selected via the quick select buttons. > [OK] Measurement [OK]...
  • Page 22 6 Using the product With saved images, Min./Max on area must be activated for the respective opened image. > [OK] Measurement Min./Max. on area | [OK]. Isotherm Isotherm shows temperatures in a selectable temperature range in a uniform colour. If Isotherm is activated ( ), the quick select...
  • Page 23 6 Using the product The values for relative humidity and ambient temperature are shown at the top of the display. [OK] Measurement [OK] Humidity | [OK]. Humidity dialogue box is opened. The values for the ambient temperature and humidity can be entered. 2.

  • Page 24: Image Gallery

    6 Using the product Depending on the scene temperature, the measuring range may be undershot or exceeded. In this case, shown instead of the readings. > If this occurs, change the measuring range. 6.1.2. Image gallery Show images… [OK] Image gallery [OK] Show images…...

  • Page 25: Scale

    6 Using the product Delete image 1. In single image: Select image (orange border) or select and open image. 2. Press Delete to delete the selected or open image. A confirmation request appears as to whether the image should really be deleted. 3.

  • Page 26: Display

    6 Using the product 2. Move Joystick left/right to select the desired option: Auto- scaling ( ), min. value ( ), temperature range ( ) or max. value ( ) The selected option has an orange border ( ). 3. With the selection of min. value, temperature range or max. value: Move Joystick up/down to change the value(s).
  • Page 27 6 Using the product 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.
  • Page 28 6 Using the product Material (material temperature) Emissivity 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.

  • Page 29: Palette

    6 Using the product 3. 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 ( ). 4. Confirm the selection with [OK]. The selected number is highlighted orange ( ).
  • Page 30 6 Using the product 5. Confirm the entry with [OK]. 6. Confirm the settings with Apply. Country settings… Instrument language and temperature unit can be set. [OK] Configuration… | [OK].| Country settings… | [OK]. Country settings dialogue is opened. 2. Move Joystick up/down to select the desired option.
  • Page 31 Activate function: You will receive an envelope with an access code (identification code), which you should enter on the website www.testo.com/upgrade. When all necessary data has been entered, an activation code is generated and can be used to activate the function via the IRSoft PC software. Please observe the installation requirements and steps on the website or in the email sent to you.
  • Page 32 6 Using the product Switch off LCD Power off imager: The selected option can be activated or deactivated. > Press [OK] to activate ( ) or deactivate ( ) the function. With the option activated, the length of time until shut-down can be set.

  • Page 33: Measuring

    6 Using the product 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! >...
  • Page 34 6 Using the product To obtain precise readings, the emissivity and reflected temperature must be set correctly, see Set emissivity/reflected temperature, page 28. 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.
  • Page 35 6 Using the product 3. Stop playback: Press > Continue playback: Press again. • Change 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. •...

  • Page 36: Maintaining The Product

    7 Maintaining the product Maintaining the product Changing the rechargeable 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. Unlock the battery compartment cover. 2.
  • Page 37 7 Maintaining the product Changing the 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 rech. batt. cover on the underside of the camera. 2.

  • Page 38: Tips And Assistance

    8 Tips and assistance Tips and assistance 8.1. Questions and answers Question Possible causes/solution Message Backup battery 1. Confirm the message with [OK]. empty or not present 2. Change buffer battery, see shown. Changing the buffer battery, page Error No memory card Memory card defective or not inserted.

  • Page 39: Accessories And Spare Parts

    8 Tips and assistance 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 8.2. Accessories and spare parts Description Article no.
  • Page 40 0970 8760 en 03 V01.30 en-GB...

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