The Fluke IRR1-SOL Irradiance Meter can make the critical measurements needed for installing, testing, maintaining, and reporting on solar panels or photovoltaic systems with one, easy-to-use tool.

The IRR1-SOL Irradiance Meter has been designed from the ground up to simplify the installation, commissioning, and troubleshooting of photovoltaic arrays, measuring irradiance, temperature, inclination and direction of the solar array in a single handheld tool. With a rugged, compact design, a protective carrying case, and an easy-to-read, high-contrast LCD screen to read measurements in direct sunlight, the IRR1-SOL can go anywhere. The simple user interface, instantaneous solar irradiation measurements and built-in temperature sensor make it easy to meet the IEC 61446 and IEC 62446 requirements for testing, documenting, and maintaining photovoltaic systems. Additionally, the integrated compass and inclination sensor allows users to quickly measure and document roof and site orientation, pitch, and panel tilt while surveying, installing, or adjusting an installation.

Whether working on a roof-mounted system or on a large field installation, the IRR1-SOL is the single-handed solution that every solar installer and technician needs in their tool bag. Use the IRR1-SOL for:

1. Photovoltaic system design and surveying
To find the expected production at a site, determine the solar resource while taking shading into account. The solar resource is measured in peak sun hours: the number of hours per day with 1,000 watts generated per square meter of solar array. Location, time of day, season, and weather conditions all influence peak sun hours. Use the Fluke IRR1-SOL to determine the actual solar irradiance (Watts/m²) and shading at the site to develop a baseline.

2, Measuring
Once the system is installed, make sure it is operating as designed by measuring its electrical characteristics and the actual power output of the array. The performance of a photovoltaic array is based on its current-voltage (IV) curve. Use the IRR1-SOL to obtain the amount of solar irradiance necessary to calculate the IV curve of the power output.

3. Comparing and diagnosing
Even when installed correctly, a photovoltaic system may not be producing the expected electrical production. For the photovoltaic system to produce the expected output, it is important to ensure that the system is receiving the right amount of irradiance energy to generate DC voltage fed into the inverter.

Includes:

1 - IRR1-SOL Solar Irradiance Meter
1 - 80PR-IRR External Temperature Probe with Suction Cup
1 - C250 Carrying Case with Shoulder Strap
4 - AA Alkaline Batteries
1 - User Manual