Fluke IRR1 Solar Irradiance Meter w/Temp Probe
If you’re surveying, installing, executing maintenance or checking performance of solar panels or a photovoltaic system, the Fluke IRR1-SOL Irradiance Meter gives you the four critical measurements needed all in one easy-to-use tool.
Make instantaneous measurements to determine the watt per square meter solar irradiation, required by IEC 62446-1 standard. Measure temperature by either placing the meter directly on the panel or by connecting the external probe. Find cardinal direction with the compass, and verify inclination of a roof or panel with the tilt function.
* PTIA 2021 Test & Measurement Award Winner *
To find the expected production at a site, determine your 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.
Once your 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. Even when installed correctly, a photovoltaic system may not be producing the expected electrical output. In order to produce the expected output the system needs to receive the correct amount of irradiance energy to generate the DC voltage that is fed into the inverter.
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.
- Solar Irradiance Meter
- External Temperature Probe with Suction Cup
- Carrying Case with Shoulder Strap
- 4 x AA Alkaline Batteries
- User Manual
What's included with the Fluke IRR1-SOL
- Measure solar irradiance, ambient and PV module temperature, array orientation and tilt angles
- Make instantaneous measurements to determine the watts per square meter solar irradiation, required by IEC 62446-1 standard
- High precision mono-crystalline solar sensor - instantaneous irradiance measurements up to 1400 W/m²
- Two options for temperature measurement - use the built-in temperature sensor or the external suction mount temperature probe to measure ambient and panel temperature
- Integrated compass - measure and document roof or site orientation
- Inclination sensor - know roof and PV panel tilt when surveying, installing, or adjusting the installation
- High contrast LCD with large numbers for easy readability in direct sunlight
- Includes convenient carry case with shoulder strap
Fluke IRR1-SOL Specifications
| Irradiance | |
| Measuring Range | 0 to 1400 W/m² |
| Resolution | 1 W/m² |
| Measurement Accuracy | ±(5% + 5 digits) |
| Temperature Measurement | |
| Measuring Range | -22 to 212°F (-30 to 100°C) |
| Resolution | 0.2°F (0.1°C)/1°F at >100°F (-17.22 at >37.77°C) |
| Measuring Accuracy | ±2°F (±1°C) at 14 to 167°F (-10 to 75°C) ±4°F (±2°C) at -22 to 14°F (-30 to -10°C) and 167 to 212°F (75 to 100°C) |
| Inclination Angle | |
| Measuring Range | -90 to 90° |
| Resolution | 1° |
| Measuring Accuracy | ±7° |
| General Specifications | |
| Operating Temperature | Meter: -4 to 122°F (-20 to 50°C); humidity <80%, non-condensing External probe: -22 to 212°F (-30 to 100°C) |
| Storage Temperature | -22 to 140°F (-30 to 60°C); humidity <80% |
| Altitude | 0 to 6561.68' (0 to 2000 m) |
| Electromagnetic Compatibility (EMC) | USA (FCC): 47 CFR 15 subpart B. This product is considered an exempt device per clause 15.103 |
| IP Protection | IP40 |
| Batteries | 4 x AA alkaline batteries |
| Battery Life (Typical) | 50 hours (>9000 readings) |
| Auto Power Off | 30 minutes |
| Dimensions | 5.90 x 3.14 x 1.37" (150 x 80 x 35 mm) |
| Weight | 0.5 lbs (231 g) |
Weight: 3 lbs.