Contaminants on solar module glass are one of the major problems rapidly impacting photovoltaic (PV) power plants, reducing power generation efficiency and cost-effectiveness. Dust contamination can significantly reduce PV power generation, estimated at least 5% annually.

ES-DC2 Dust Monitoring System for Solar Panel utilizes module-to-module extreme value data analysis (IEC 61724 contamination measurement method) technology, making it easy to install in new or existing PV arrays and integrate into the power plant management system. The monitoring sensor is installed on two PV panel samples in the field (one panel is naturally dusted, and the other is regularly cleaned). By continuously measuring the power loss caused by contaminants on the glass, the amount of reduced sunlight reaching the solar module is calculated.

By measuring the proportion of contaminants (SR), this is converted into a real-time loss of power generation. This allows maintenance personnel to know when contamination reaches a critical point and when it is necessary to initiate a cleaning procedure. The product requires no maintenance; it is cleaned in the same way as surrounding modules.

Product Parameters	Parameter Description	Remark
Measured parameters	Contamination ratio, cleanliness ratio
Measured range	Pollution rate 50-100%
Measurement accuracy of pollution ratio	Dual sensor value 50~80%	Measurement accuracy ±5%，Processed by internal sophisticated algorithms
	Measurement range 90~100%
	Measurement range 80~90%
Estabilidad	Better than full range by 1% (per year)
Backplane Temperature Sensor	Measurement range: -50~150°C	Accuracy: 0.3°C
Output Method	RS485 Modbus(wired); 4G/Bluetooth (wireless)
Control methods	normally open/normally closed, cyclic control, time control, manual control
Operating voltage	DC12~24V
Current range	70~200mA @DC12V
Consumo de energía	3W @ DC12V
Temperatura de funcionamiento	-40°C ~ +60°C
Nivel de protección	IP65
Peso	4Kg	Net weight
Dimensiones	500×400×200mm	Net size
Sensor cable length	20m
Calibrate photovoltaic panels	2pcs
Monitoring probe	with dual-channel sensor data acquisition
Threshold alarm	upper limit, lower limit, and linkage with secondary equipment.
Component temperature	PT100 Class A platinum resistance thermometer
The observation timeframe	threshold meets the monitoring requirements.

ES-DC2 Dust Monitoring System for Solar Panel (Comparison Method)

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