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    Photovoltaic Systems

    Sunny outlook for your business.
    Thermal imaging cameras from Testo.

    Reliable and Efficient Operation of Photovoltaic Systems

    With the energy transition underway, the number of photovoltaic systems on the rooftops of private homes and commercial buildings is increasing rapidly. Like all electronic components, solar cells, modules, and other system electronics require regular inspection, especially since they are exposed to outdoor conditions.

    Factors such as installation errors, severe weather, and natural aging can lead to defects in modules and components, such as inverters, that reduce energy output. Infrared thermography enables quick, precise, and reliable detection of issues within PV systems, allowing for timely maintenance and optimised performance.

    Detect thermal anomalies on photovoltaic systems quickly, safely and reliably

    • Occurs when an inactive cell continues to be supplied with power by the active cells, e.g. due to lightning or hail.

    • The cell then converts this energy into heat.

    • The resultant “hotspots” could even destroy the module.

    • Overheated cells can be identified very easily with the thermal imaging cameras

    testo 883 product recommendation

    testo 883 thermal imaging camera

    • Reliable fault diagnosis thanks to high image quality with resolution up to 640 x 480 pixels and NETD < 40 mK

    • Correct alignment and viewing angle thanks to manual focus and interchangeable telephoto lens

    • High functionality through simple operation and solar mode

    testo 883 brochure

    Checklist for testing PV systems with a thermal imaging camera

    • When to check

    • What needs to be checked

    • Environmental and measurement conditions

    • Positioning of the imager

    • Error patterns and causes

    Practical guide

    Thermography for Photovoltaic Systems

    Useful information about the thermographic inspection of solar panel systems of all sizes.

    Download now for FREE

    Error patterns and causes

    Tips & tricks for measurements and avoiding errors

    Selecting the right thermal imager

    And lots more besides ...

    How does a thermal imager help?

    Shooting from a long distance with telephoto lens

    Thermal imagers and more for solar systems

    testo 883-1

    To the product

    testo 883-1 thermal imager kit:

    • high image quality with resolution up to 640 x 480 pixels and NETD < 40 mK

    • manual focus and interchangeable telephoto lens

    • Simple operation and solar mode

    testo 890 thermal imaging camera:

    • high image quality with resolution up to 1280 x 960 pixels and NETD < 40 mK

    • Three lenses included: standard, 25° and telephoto lens

    • Panoramic image assistant for combining individual images

    testo 770-3

    To the product

    TRMS clamp meter testo 770-3:

    • Easy to operate thanks to the fully retractable pincer arm

    • Automatic detection of AC/DC, resistance, continuity, diode and capacitance

    • Wireless transmission of measured values to the testo 883 clamp meter

    testo Thermography App

    Smart as thermography can be

    - Stream thermal images live from the imager to smartphones or tablets

    - Analyze thermal images quickly while on site

    - Add measuring points or comments

    - Create reports quickly and send them by e-mail

    To Google Play
    To the App Store

    Report wizard

    Send e-mail

    Share thermal images

    Thermal image analysis

    Second Screen