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    Photovoltaic systems

    Fast and reliable fault detection.
    With thermal imagers from Testo.

    Products

    Reliable and efficient operation of photovoltaic systems.

    Due to the energy transition, the number of photovoltaic systems on the roofs of private homes and commercial buildings is increasing rapidly. Like all electronic components, solar cells and modules as well as other electronic components must be checked regularly, especially since they are located outdoors.

    Installation errors, severe weather and aging can cause defects in modules and components such as inverters that reduce energy output. Infrared thermography offers the possibility to locate problems on PV systems quickly, precisely and reliably.

    Detect thermal anomalies on photovoltaic systems quickly, safely and reliably

    go to thermal imagers

    • A hotspot effect 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 imager

    testo 883 product recommendation

    testo 883 thermal imager

    • 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

    Download

    Checklist for testing PV systems with a thermal imager

    • When to check

    • What needs to be checked

    • Environmental and measurement conditions

    • Positioning of the imager

    • Error patterns and causes

    Download now free of charge
    Practical guide

    Thermography for photovoltaic systems

    What you need to know about thermographic inspection of small and large solar systems.

    Download now for free

    Error patterns and causes

    Tips & tricks for measuring and avoiding errors

    Choosing the right thermal imager

    And much more ...

    How does a thermal imager help?

    Shooting from a long distance with telephoto lens

    go to thermal imagers

    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

    To the product

    testo 890 thermal imager

    • 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