Maintenance

The sensor makes a determination of soiling ratio by comparing outputs from two collocated PV reference cells. To get a good representative measurement, periodically check the reference cells and clean them when needed. Typically, the cleaning schedule can be every 6 to 12 months. However, Campbell Scientific suggests cleaning both the soiled and reference cells whenever the solar plant is cleaned. This resets the soiling ratio.

The DustVue 10 has a clock that should be set on every site visit or at least once every six months. The Dashboard page displays the current time and the clock can be set on this page. The clock can also be set using Modbus. It is a good practice to program the SCADA system to set the clock at a fixed interval.