
Lascar ElectronicsEL-USB-1-LCD
This automatic solar radiation measurement system accurately observes direct, diffuse and total solar radiation at the same time. It measures direct and diffuse radiation in the 280 to 3000nm spectral range and can also measure sunshine duration directly.
It is widely used in photovoltaic monitoring, meteorological radiation observation, agricultural and forestry research and many other fields.
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| Property | Value |
|---|---|
| Spectral range — direct radiation | 280-3000nm |
| Spectral range — diffuse radiation | 400-1100nm |
| Spectral range — total solar radiation (optional) | 300-3200nm |
| Measuring range | 0-2000W/m2 |
| Output | 0-20mV or customized (RS485…) |
| Sensitivity | 7-14μV*W-1*m2 |
| Internal resistance — direct radiation | Approx. 100Ω |
| Internal resistance — diffuse radiation | Approx. 350Ω |
| Internal resistance — total radiation | Approx. 350Ω |
| Non-linearity (direct, diffuse and total) | <±2% |
| Response time — direct radiation | ≤25s (99%) |
| Response time — diffuse and total radiation | ≤20s (99%) |
| Stability — direct radiation | ±1%/year |
| Stability — diffuse and total radiation | ±2%/year |
| Temperature effect | ±1% (-10℃-+40℃) |
| Radiometer operating temperature | -40℃-+70℃, 0-100%RH |
| Tracking system motor | Stepper motor |
| Tracking accuracy | <±0.3° (4h) |
| Torque | 12Mm |
| Power | 3W |
| Tracking | Automatic two-dimensional angle tracking |
| Power supply | DC12V, AC220V or other |
| Speed | 50°/s |
| Horizontal angle (azimuth) | 0-200° |
| Vertical angle (declination) | -15-+90° |
| Ingress protection | IP65 |
| Tracker operating temperature | -40℃-+70℃, 0-100%RH |
| Communication interface | RS232, RS485, USB |
| Storage conditions | 10℃-60℃@20%-90%RH |
| Weight (unpacked) | 6.5kg (sensors included) |
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