MPP Power

16-bit measurement for Voltage and Current
2 software selectable Voltage ranges 6 V and 25 V (voltage operation can be adjusted)
Current measurement down to 500nA and up to 10A in 4 decadic measurement
25 W continuous operation (higher ratings are possible but require larger cooling aggregates and therefore space)
Resistor setting is 12-bit (16-bit on request) and ranges from 500 mOhm to 200k (can be adjusted, if required)
PT100 or PT1000 inputs
Irradiation sensor inputs for calibrated reference cells
Pyranometer inputs possible
Connectors as defined by customer
Setup is built into an electrical enclosure on Din Rails – Outdoor options are available including climate control for moisture and temperature handling over the year
Access to system via Network, VPN is possible
Cameras are recommended in module to sky direction for weather and sun documentation and looking on the modules allowing to protocol other artefacts like dust, insects, snails, snow, icing – this is often helpful, as the reference cells are not exactly at the same positions as the modules

Parallel tracking on all channels
Channel based configuration
Output to CSV and InfluxDB-Database
Other network based systems can be attached to MQTT
Tracking is software based
Autoranging / Divide and conquer (Step from large resistor values in 10k, 1k, 100R steps to reach MPP. Recommended for outdoor degredation studies as the MPP is approached each cycle)
Constant current / voltage
Perturb and Observe
IV scan in 4th Quadrant
Others and own approaches are possible
Values that can be acquired: Voc (@ Rmax), Isc(@ Rmin), Impp, Vmpp, Pmpp, FF, Efficiency (if reference cell or pyranometer is used), Temperature