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Photovoltaic systems

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

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

  • 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 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 imager

  • 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 free of charge

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 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