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Manual Soiling Sensor with Modbus Output
SEVEN Soiling Sensor is designed to measure the loss of energy production due to soiling caused by environmental factors on photovoltaic panels. The Soiling Sensor is used to know the production losses due to soiling. If soiling ratio read from the sensor is 10%, it means that there is 10% energy loss in the facility (PV Soiling = Energy Loss)
The measured Soiling Ratio is transferred to dataloggers and receiver units via a 2-wire RS485 bus with Modbus RTU protocol, and it is SunSpec compliant.
TECHNICAL DATA
| Item Code | 3S-SMS-MB-M |
| Soiling Ratio | 0% – 100% |
| Resolution | 0,1% |
| Uncertainty | ≤1% |
| Irradiance | 0…1600 W/m² |
| Followed Standard | IEC61724-1 (Annex C) |
| Data Output | RS485 up to 38400 Baud |
| Communication Protocol | Modbus RTU |
| Output Rate | 1/s |
| Operating Temperature Range | -40°C to +85°C |
| Operating Humidity Range | 0 to 100% |
| Power Supply | 12 to 30 V DC |
| Power Consumption | 20 mA @ 24 V DC |
| Electrical Connection | 3 m LIYYC11Y PUR Cable, UV and weather resistant |
| Galvanic Isolation | 1000 V between power supply and RS485 Bus |
| IP Rating | IP 65 |
| Dimensions | 244 mm x 108 mm x 42 mm (W x L x H) |
| Weight | 500 g |
| Calibration | Each sensor is calibrated under Class AAA Sun Similator as per IEC 60904-2 by using a reference cell calibrated by ISFH-Germany |
| Test | Each sensor is tested under natural sunlight by using a calibrated reference cell from Fraunhofer ISE, Germany.) |