Seaward has released a new diagnostic testing device — the PV200/210 test instrument.
Combining IV curve analysis with electrical testing and using push button operation, the battery-operated multi-function PV200/210 performs all the electrical commissioning tests required by IEC 62446. These include open circuit voltage, short circuit current, maximum power point voltage, current and power, and insulation resistance.
Along with electrical tests, the instrument can also perform IV curve measurements in accordance with IEC 61829 to determine if the measured curve deviates from the expected profile, highlighting the need for any additional analysis or fault finding. The fill factor of PV systems can also be evaluated.
For detailed analysis, measured data can be instantly transferred from the test instrument to the accompanying PV mobile android app using wireless connectivity (NFC) to generate a high-definition color display of IV and power curves for individual PV modules or strings. In this way, accurate visual comparison of curve shapes can be used for immediate identification of potential problems such as shading, defective cells or bad electrical connections. The data can also be immediately exported to the head office for further analysis and investigation.
The wireless connection between the PV200/210 and the Solar Survey 200R meter also enables real-time irradiance to be displayed and measured at the same time as electrical testing is performed. The irradiance and temperature data transferred by PVMobile can be used to convert the measured electrical data to STC for direct comparison with the manufacturers’ published data stored in the PVMobile database. Complete IV curve and electrical test data can be stored in onboard memory and downloaded to PC in CSV format via USB connection for full system data tracking and test records.
When integrated with the optional SolarCert software program, the downloaded data can be quickly and easily organized using a layered tree structure showing the string, combiner box and inverter. In addition, professional inspections and test reports can be made, including IEC 62446 measurements and IV curve plots.
News item from Seaward