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Summary of Contents for TESTO 875-2i pro
- Page 1 875i · Thermal imager Instruction manual...
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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 ................. 8 Product description ................ -
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 875i 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 (heating, ventilation and air conditioning... -
Page 8: Technical Data
Characteristic Values Field of vision/min. Standard lens: 32° x 23°/0.1 m (0.33 ft) focusing distance Telephoto lens (testo 875-2i only, optional): 9° x 7° / 0.5 m (1.64 ft) Thermal sensitivity <50 mK at 30 °C (86 °F) (NETD) Geometric resolution Standard lens: 3.3 mrad... - Page 9 -30 - 100 °C (-22 - 212 °F) Measuring range 2: 0 - 350 °C (32 - 662 °F) Measuring range 3 (optional, testo 875-2i only): 350 - 550 °C (662 - 1022 °F) Accuracy Measuring range 1@ -20 - 100°C (-4 - 212°F): ±2 °C (±3.6 °F)
- Page 10 Standard measurement (1-point), 2-point functions measurement, Cold-/Hotspot, solar (manual entry of the radiation intensity) Also with testo 875-2i: isotherm, min./max. on area, Display of humidity image via manual entry of the ambient humidity / temperature (real-time display with optional radio humidity probe)
- Page 11 Laser measuring spot marking Not available in USA, Japan, China. Characteristic Values Classification of the 635 nm, Class 2 laser Audio functions (testo 875i-2 only) Characteristic Values Sound via headset (included in delivery) recording/playback Recording period max. 30 s per image...
- Page 12 3 Specifications 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, not condensing 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...
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Page 13: Product Description
4 Product description Product description 4.1. Overview Product components 1 Display. 2 Control keys: Functions Switch the imager on/off. [OK] 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"] Call up a function. -
Page 14: Basic Properties
Do not use desktop tripods, danger of tilting! 5 Right interface terminal: Radio module compartment. 6 2 LEDs: For illumination for the visual image (testo 875-2i only). 7 Digital camera lens: For recording visual images 8 Laser (not available in all countries): For aiming at the measuring field. -
Page 15: First Steps
5 First steps File formats and file names The images are saved according to the following pattern: XX_YYYYY.ZZZ for infrared image without attached real image, infrared image with attached real image, for real image. YYYYY: 5-digit consecutive number ZZZ (file extension): for infrared image without/with attached real image, for real image, .jpg. - Page 16 5 First steps Perform basic settings > Remove the protective film from the display. The start screen appears on the display. 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.
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Page 17: Getting To Know The Product
> To remove the memory card: Press on the memory card to release the lock. Inserting a radio module (accessory, testo 875-2i only) Using a radio module (accessory) the instrument can be connected with a radio humidity probe. The radio module must be connected before switching on the instrument in order for the instrument to be identified. - Page 18 > To remove the radio module: push radio module down slightly and remove. Attaching headset (testo 875-2i only) 1. Open the cover on the left side of the thermal imager. 2. Insert stereo jack of the headset into the headset slot (1).
- Page 19 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).
- Page 20 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 32. > Switch instrument off before changing the lens. >...
- Page 21 5 First steps 8. Press function key [Apply]. Restart instrument The information appears. 9. Press The instrument switches off. > To switch on the instrument: Press 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.
- Page 22 Laser Switch on laser for homing in on the measuring surface (hold button down). Light (testo 875-2i Switch on/off LEDs for lighting up objects for only) the digital camera. Palette Change colour palette for the infrared image.
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Page 23: Using The Product
6 Using the product Navigating in the menu 1. Press [OK] button. Menu is opened. 2. Select navigation/function: Joystick • Move 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 24 Coldspot Hotspot quick select button to activate/deactivate the respective function. Min./Max. on area (testo 875-2i only) Min./Max. on area shows the minimum and maximum temperature value within the area selection shown on the display. The area selection is neither scalable nor adjustable. If Min./Max.
- Page 25 [OK] or [Esc]. The changes are saved. Moisture (testo 875-2i only) The ambient temperature and humidity values entered manually or measured by the (optional) radio humidity probe are used to calculate the relative surface moisture for each pixel. The values are shown as a humidity image.
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Page 26: Image Gallery
With temperature differences larger than 350 K the use of the Ironbow HT palette is recommended as it enables lower temperatures to be shown with higher contrast, see Mounting/removing high-temperature filter (testo 875-2i only), page 19Palette</dg_ref_source_inline>. 6.1.2. Image gallery Show images… [OK]... - Page 27 6 Using the product The saved data is shown 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).
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Page 28: Scale
6 Using the product 6.1.3. Scale... Set scale limits You can choose between auto-scaling (continuous, 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 26). 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 31). -
Page 29: Emissivity
6 Using the product [Apply] 4. Confirm settings with the quick select button. Discard settings with [Esc]. 6.1.5. 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. - Page 30 6 Using the product Material (material temperature) Emissivity 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...
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Page 31: Palette
6 Using the product 2. Move Joystick up/down to select the desired material. The selected material is highlighted orange ( ). The corresponding emissivity is shown to the right next to the material. Joystick 3. Move to the right to switch to the setting of the emissivity (only available when selecting User defined) or to... - Page 32 The lenses adjusted to the instrument are shown. Only the lenses that are shown may be used. testo 875-2i: The high-temperature filter registered in the instrument is shown. With use of another high-temperature filter, the specified accuracy is not ensured.
- Page 33 Activate function (only with subsequent order): 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.
- Page 34 (accessory), see Inserting a radio module (accessory, testo 875-2i only), page 17. Every radio probe has a probe identification number (RFID). This is made up of the three-digit RFID number on the probe and the position of the switch in the battery compartment of the radio probe or L).
- Page 35 6 Using the product If no readings appear during the measurement: > Check the potential causes, see above. Audio settings…(testo 875-2i only) The volume of the audio playback and recording can be set. [OK] Configuration… [OK] Audio settings… | [OK].
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Page 36: Measuring
NOTICE Damage to the infrared detector by measuring high scene temperatures. > testo 875i without high-temperature filter: do not direct the thermal imager at areas > 500°C / 932°F. > testo 875-2i with high-temperature filter: do not direct the thermal imager at areas > 800°C / 1472°F. - Page 37 [Apply] quick select button to select the opened folder. Recording/playing audio comments (testo 875-2i only) It is only possible to record an audio comment for frozen images. It is possible to play audio comments with frozen and saved pictures. [Audio] 1.
- Page 38 6 Using the product • Play recording: 1. Select beginning of recording: Press again. 2. Start playback: Press 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...
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Page 39: Maintaining The Product
7 Maintaining the product Maintaining the product 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. -
Page 40: Tips And Assistance
8 Tips and assistance Tips and assistance 8.1. Questions and answers Question Possible causes/solution Backup battery 1. Confirm the message with [OK]. Message empty or not present 2. Change buffer battery, see shown. Change buffer battery page 39. Error No memory card Memory card defective or not inserted. -
Page 41: Accessories And Spare Parts
> Check possible causes, see Radio…( testo 875-2i only), page 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. - Page 42 0970 8754 en 03...
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