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SR05-D1A3 Class C pyranometer with Modbus RS-485 and 0-1 V output
SR05-D1A3 is a spectrally flat Class C pyranometer for hemispherical solar radiation measurement, featuring Modbus over RS-485 and a 0-1 V analog output for easy integration in meteorological networks and PV systems.
The SR05-D1A3 from Hukx is a spectrally flat Class C pyranometer compliant with ISO 9060:2018, built to measure hemispherical solar radiation in W/m2 with an attractive balance of cost, accuracy and integration flexibility.
This version combines Modbus over RS-485 communication with a 0 to 1 V analog output, making it easy to connect to agro-meteorological networks and commercial-scale PV monitoring systems.
The SR05 series is intended for installations that require rugged and affordable instrumentation without sacrificing compliance. Its thermopile sensor, single dome and protective anodized aluminum housing provide dependable long-term solar measurement performance.
Key benefits include simple installation, industry-standard digital and analog outputs, and optional ball leveling with tube mount for easier field setup and service.
SR05-D1A3 is a strong choice for general solar radiation measurement, agro-meteorological networks, plane-of-array irradiance measurement and reflected radiation monitoring in PV performance assessment under IEC 61724-1.
| Measured quantity | Hemispherical solar radiation |
| ISO 9060:2018 classification | Spectrally flat Class C |
| Compliance | IEC 61724-1:2021 Class B system |
| ISO 9060:1990 | Second class pyranometer |
| WMO performance level | Moderate quality pyranometer |
| Calibration uncertainty | < 2.4 % (k = 2) |
| Calibration traceability | To WRR |
| Spectral range | 285 to 3000 x 10⁻⁹ m |
| Operating temperature range | -40 to +80 °C |
| Heating | No |
| Tilt sensor | No |
| Standard cable length | 3 m |
| Operating voltage range | 5 to 30 VDC |
| Leveling | Optional ball leveling, with or without tube mount |
| Output | Modbus over RS-485 and 0-1 V analog |
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