TESTO 876 Instruction Manual
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TESTO 876 Instruction Manual

Thermal imager
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testo 876 · Thermal imager
Instruction manual
GlobalTestSupply
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nd Quality Products Online at:
sales@GlobalTestSupply.co

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Summary of Contents for TESTO 876

  • Page 1 876 · Thermal imager Instruction manual GlobalTestSupply www. .com nd Quality Products Online at: sales@GlobalTestSupply.co...
  • Page 2 GlobalTestSupply www. .com nd Quality Products Online at: sales@GlobalTestSupply.co...

  • 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 3.1. Technical data .................8 Product description................12 4.1. Overview..................12 4.2. Basic properties................14 First steps ....................15 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

    > 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. GlobalTestSupply www. .com nd Quality Products Online at: sales@GlobalTestSupply.co...

  • 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: Technical Data

    3 Specifications 3.2. Technical data Infrared image output Characteristic Values Field of vision/min. Standard lens: 32° x 23°/0.1 m (0.33 ft) focusing distance optional: 9° x 7° / 0.5 m (1.64 ft) Thermal sensitivity <80mK at 30°C (86°F) (NETD) Geometric resolution Standard lens: 3.3 mrad Telephoto lens: 1 mrad Refresh rate Focus...
  • Page 9 3 Specifications Measuring Characteristic Values Temperature range -20 - 100 °C/0 - 280°C (-4 - 212 °F/32 - (can be changed) 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 Standard lens: 10 mm at 1 m...
  • Page 10 3 Specifications Audio functions Characteristic Values Sound via headset (included in delivery) recording/playback Recording period max. 30 s per image Housing Feature Values Housing material ABS and TPE Housing fronts ABS and PC (nickel plated) Power supply Characteristic Values Battery type Fast-charging, Li-ion battery can be changed on-site Operating time...
  • Page 11 Operating system Windows XP Service requirements Pack 3, Windows Vista or Windows 7 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 GlobalTestSupply www. .com nd Quality Products Online at: sales@GlobalTestSupply.co...

  • Page 12: 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 13 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 14: 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 15: 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 16 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 17: Getting To Know The Product

    5 First steps 5.2. Getting 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.
  • Page 18 5 First steps Changing lens 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 30. > Switch instrument off before changing the lens. >...
  • Page 19 5 First steps > 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 •...
  • Page 20 5 First steps 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...

  • 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 At the upper edge of the display, the relative air humidity, air temperature and dewpoint temperature are shown. [OK] Measurement [OK] Humidity | [OK]. Dewpoint dialogue is opened. The dewpoint temperature can be entered. If the image is to be evaluated using the IRSoft software, the values for the ambient temperature and ambient humidity must be entered.

  • Page 24: Image Gallery

    6 Using the product 6.1.2. Image gallery Show images… [OK] Image gallery [OK] Show images… | [OK]. 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).

  • Page 25: Scale

    6 Using the product 2. Name folders: Use the Joystick to select the desired letters and confirm with[OK]. The folder name can consist of up to 8 characters. Incorrect entries can be deleted using the right [◄C] quick select button. 3.

  • Page 26: Display

    6 Using the product 6.1.4. 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.
  • Page 27 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) 0.77 Gypsum (20 °C)
  • Page 28 6 Using the product 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 as ovens or machines) are in the proximity of the object being measured should the radiation temperature of theses heat sources...

  • Page 29: Palette

    6 Using the product 7. Confirm the settings with Apply. The changes are saved. The selected emissivity ( ) is shown at the bottom right in the display in measurement view. 6.1.6. Palette Change colour palette for the infrared image You can choose between 4 existing palettes.
  • Page 30 6 Using the product 3. Confirm the selection with [OK]. The selected setting is highlighted orange ( ). 4. Move Joystick up/down to change the setting. 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.
  • Page 31 6 Using the product > Press [OK] to activate ( ) or deactivate ( ) the function. With the option activated, the length of time until shut-down can be set. > Move Joystick to the right and press [OK]. Move Joystick up/down to change the setting.

  • Page 32: Measuring

    6 Using the product 6.2. Measuring Important framework conditions Please observe the following framework conditions in order to obtain significant measurement results. Humidity measurement: • Gently wave the separate air humidity measuring instrument to shorten the equalization period. Avoid sources of interference (e.g.
  • Page 33 6 Using the product Select the storage location (folder): 1. While an image is frozen (fixed image): Press the left [Folder] quick select button. Folder dialogue is opened. To create a new folder, see Create new folder page 24. 2. Select the desired folder with the joystick and open with [OK]. The folder name of the opened folder is displayed in the header.
  • Page 34 6 Using the product • 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. • Delete recording: >...

  • Page 35: 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 36 7 Maintaining the product 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).

  • Page 37: 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 38: 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 39 GlobalTestSupply www. .com nd Quality Products Online at: sales@GlobalTestSupply.co...
  • Page 40 0970 8760 en 01 V01.06 en-GB GlobalTestSupply www. .com nd Quality Products Online at: sales@GlobalTestSupply.co...

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