Brand: Sonel
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Simple and compact
IRM-1, small, but indispensable for testing PV systems. By measuring solar radiation values, as well as panel and ambient temperatures, it provides the necessary data to convert the results into STC conditions. A built-in recorder with a memory of 5000 records enables the instrument to be used as a tool in the PV plant design process, as well as to diagnose panel shading problems.
Features
Measured parameters
Tightness and durability
The meter performs well in harsh environmental conditions. Protection against the ingress of dust and water is provided by the housing rated at IP65. This is especially important for measurements on photovoltaic systems, which are outdoor installations.
Communication and software
Measurement data from the IRM-1 can be transferred to a computer via the USB port. In addition, the device has a built-in wireless LoRa interface (Long Range) for automatic data exchange with the master meter – even over long distances.
Specifications
Parameter | Measurement range | Display range | Resolution | Accuracy |
---|---|---|---|---|
Irradiance | ||||
Measurement in W/m2 | 100 W/m2 …1400 W/m2 | 0 W/m2 …1400 W/m2 | 1 W/m2 | ±(5% m.v. + 2 digits) |
Measurement in BTU/ft2 h | 32 BTU/ft2h…444 BTU/ft2h | 0 BTU/ft2h…444 BTU/ft2h | 1 BTU/ft2h | ±(5% m.v. + 2 digits) |
PV and ambient temperature | ||||
Measurement in °C | -20.0°C…100.0°C | -20.0°C…100.0°C | 0.1°C | ±(1% m.v. + 5 digits) |
Measurement in °F | -4.0°F…212.0°F | 4.0°F…212.0°F | 0.1°F | ±(1% m.v. + 5 digits) |
Inclination angle | -90°…+90° | -90°…+90° | 1° | ±2° |
Position direction - compass | 0°…360° | 0°…360° | 1° | ±5° |
"m.v." – measured value
Specifications
Sonel offers a wide range of electrical measurement devices and specialized instruments which are applicable throughout the electrical power industry including residential, commercial and industrial.