مرجع داخلي:
PVmet-75
RainWise PVMet™ weather stations are configured by solar weather experts to your exact needs and arrive fully assembled. The PVMet 75 is the basic, ready-to-deploy model, measuring global irradiance, back-of-panel temperature and ambient air temperature, with Modbus RTU communication (Modbus TCP optional).
RainWise PVMet™ 75 Solar Monitoring Station
Leading Features:
• Basic, ready-to-deploy model
• Global irradiance
• Back-of-panel temperature
• Ambient air temperature
• Modbus RTU (Modbus TCP optional)
• Arrives fully assembled
Technical Specifications
| Model | PVMet 75 |
| Power | |
| Power Requirements | 10 to 30VDC at less than 50mA |
| Operating Environment | |
| Temperature | -40°C to 60°C (-40 to 140°F) |
| Relative Humidity | 0-100% Condensing |
| Irradiance Sensor | |
| Range | 0-1750 W/m² |
| Accuracy | +/-5% |
| Cosine Response | 45° +/-1%; 75° +/-5% |
| Operational Temperature | -25 to 55°C (-13 to 131°F) |
| Resolution | 1W/m² |
| Ambient Air Temperature Sensor | |
| Range | -40 to 80°C (-40 to 176°F) |
| Accuracy | +/- 0.4°C (0.72°F) |
| Thermal Time Constant | 30 sec. |
| Resolution | 0.1 °C |
| Back of Module (BOM) Temperature Sensors | |
| Range | -40 to 80°C (-40 to 176°F) |
| Accuracy | +/- 0.3°C (0.54°F) |
| Thermal Time Constant | 270 sec. |
| Cable Length | 7.62m (25 ft) |
| Resolution | 0.1 °C |
| RS-485/422 Serial Port | |
| Mode | 2-wire half duplex |
| Connector | 4-position screw terminal |
| Max Speed | 9600 bps |
| Max. Modbus Poll Rate | 100 ms. |
| Termination | 120 ohms (internal jumper enable) |
| Protocol | Modbus RTU, SunSpec Compliant (TCP option available) |