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General| Resolution | 160 x 120 pixels |
|---|---|
| Field of view | 32° x 23° |
| Temperature range | -20 °C to +280 °C |
| Storage | SD card |
| Battery life | 4 hours |
| Image refresh rate | 9 Hz |
| Weight | 500 g |
| Operating temperature | -15 °C to +50 °C |
| Protection class | IP54 |
| Thermal sensitivity | < 80 mK @ 30 °C |
| Display | 3.5" LCD 320 x 240 pixels |
| Spectral range | 8 to 14 µm |
| Detector type | Uncooled microbolometer |
Information about the document, including use instructions and warnings.
Instructions and guidelines for the safe operation of the thermal imager.
Guidelines for environmentally responsible disposal of batteries and the product.
Description of typical application areas and available versions of the testo 875.
Detailed technical specifications for infrared/visual output, image presentation, and measuring capabilities.
Overview of product components, control keys, and their respective functions.
Information on voltage supply, file formats, and naming conventions for saved images.
Steps for initial setup, including battery connection and basic configuration settings.
Instructions for memory card insertion, accessory mounting, and lens changing.
Details on 1-point measurement and Cold-/Hotspot functions for temperature analysis.
How to display, delete, and organize saved images and folders.
Instructions for setting scale limits for auto-scaling or manual temperature scaling.
Customizing the presentation by showing/hiding elements like crosshairs and temperature scales.
Explanation of emissivity and how to set it, including typical material values.
How to change the color palette for the infrared image display.
Setting time/date, country preferences, optics, power-save modes, and formatting.
Important framework conditions and settings for achieving accurate thermal measurements.
Procedures for safely changing the rechargeable and buffer batteries.
Instructions for cleaning the thermal imager's housing and lens/protection glass.
Procedure for changing the buffer battery while preserving instrument settings.
Troubleshooting guide for common messages, their causes, and solutions.
List of available accessories and spare parts with corresponding article numbers.
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