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| Brand | Solar Light |
|---|---|
| Origin | USA |
| Model | Microtops II |
| Optical Channels | 305.5 ±0.3 nm (2.0 nm FWHM), 312.5 ±0.3 nm (2.0 nm FWHM), 320.0 ±0.3 nm (2.0 nm FWHM), 936 ±1.5 nm (10 nm FWHM, optional), 1020 ±1.5 nm (10 nm FWHM, optional) |
| Stray Light | ≤1×10⁻⁹ (305.5 nm), ≤1×10⁻⁸ (312.5/320.0 nm), ≤1×10⁻⁶ (936/1020 nm) |
| Resolution | 0.0001 µW/cm² (305 nm channel) |
| Dynamic Range | >300,000 |
| Field of View | 2.5° |
| Accuracy | ±1–2% (O₃ column), traceable to WMO standard protocols |
| Nonlinearity | ≤0.002% FS |
| Operating Environment | 0–50 °C, no precipitation |
| Interface | RS-232C serial |
| Power | 4 × AA alkaline batteries |
| Weight | 600 g |
| Dimensions | 10 × 20 × 4.3 cm |
| Data Logging | Non-volatile memory with timestamp, GPS coordinates (optional), solar zenith angle, altitude, barometric pressure, ambient temperature |
| Brand | Solar Light |
|---|---|
| Origin | USA |
| Model | Model 501 |
| Spectral Range | 320–400 nm |
| Measurement Range | 0–10 mW/cm² |
| Cosine Response Error | ≤ ±5% |
| Response Time | 1 s (optional 0.1 s) |
| Temperature Coefficient | ±1% per °C |
| Operating Temperature | −40 to +50 °C |
| Submersible Depth | up to 5 m |
| Output | 0–2.5 V (UV signal), 0–1 V (sensor temperature) |
| Power Supply | 5.5–25 VDC (signal circuit), 11–15 VDC/1 A (temperature stabilization) |
| Detector Dimensions | 14 cm H × 15 cm dia. |
| Weight | 0.9 kg (detector only) |
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