Sun Photometer
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| Brand | FPI |
|---|---|
| Origin | Zhejiang, China |
| Manufacturer Type | OEM Manufacturer |
| Country of Origin | China |
| Model | CE318 |
| Pricing | Available Upon Request |
| Brand | Fengtu |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Authorized Distributor |
| Country of Manufacture | China |
| Model | FT-GD1 |
| Price | USD 10,800 (FOB) |
| Brand | OAI |
|---|---|
| Origin | USA |
| Model | TriSOL Solar Power Meter |
| Measurement Unit | suns (1 sun = 1000 W/m² at AM1.5G, 25°C) |
| Calibration Traceability | NIST-accredited per ISO/IEC 17025, traceable to NREL |
| Reference Cell Standard | IEC 60904-2 |
| Temperature Input | Dual-channel — Type-K thermocouple & RTD (100 Ω Pt) |
| Data Interface | USB 2.0 |
| Power Supply | AC adapter or rechargeable Li-ion battery |
| Temperature Display | °C / °F selectable |
| Readout Modes | Continuous & peak-hold |
| Peak Averaging | User-configurable window |
| Compliance | GLP-compliant data logging, FDA 21 CFR Part 11–ready software architecture |
| Brand | Solar Light |
|---|---|
| Origin | USA |
| Model | Microtops II |
| Optical Channels | 340, 380, 440, 500, 675, 870, 936, 1020 nm (user-selectable 5-channel configuration) |
| Spectral Bandwidth (FWHM) | 2–10 nm depending on channel |
| Stray Light Rejection | ≤1×10⁻⁶ (λ < 650 nm), ≤1×10⁻⁵ (λ < 1.2 µm) |
| Dynamic Range | >300,000 |
| Radiometric Resolution | 0.1 W/m² |
| Field of View | 2.5° |
| Accuracy | ±1–2% |
| Nonlinearity | ≤0.002% FS |
| Operating Temperature | 0–50 °C, no precipitation |
| Power | 4×AA alkaline batteries |
| Weight | 600 g |
| Dimensions | 10 × 20 × 4.3 cm |
| Interface | RS-232C |
| Data Storage | Non-volatile memory with timestamp, GPS coordinates (optional), solar zenith angle, altitude, pressure, temperature |
| Software | MICROTOPS Organizer (Windows-based data retrieval and archiving) |
| Brand | Tianhe (Shandong Tianhe Instrument Co., Ltd.) |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | OEM/ODM Manufacturer |
| Model | TH-GD1 |
| Spectral Range | 280–3000 nm |
| Filter Channels | 10 discrete bands (340, 380, 440, 500, 670, 870, 940, 1020, 1640 nm + UV-A broadband 280–300 nm) |
| FWHM | 2 nm @ 340 nm |
| Field of View | ≤1.3° (full angle) |
| Tracking Accuracy | <0.1° (active sun-sensor mode) |
| Data Resolution | 1 s minimum integration time |
| Calibration Uncertainty | <2% (traceable to national meteorological standards per JJG 458-1996) |
| Power Supply | DC 12 V (with auto-switching green power management module) or AC 220 V |
| Operating Temperature | −40 °C to +55 °C (low-temp variant) |
| IP Rating | IP66 |
| Weight | 6 kg |
| Dimensions | 235 × 181 × 310 mm (W×D×H) |
| Communication | RS485 (Modbus RTU), 4G LTE, Bluetooth 5.0 |
| Onboard GNSS | Integrated high-precision GPS/GNSS module for time synchronization and georeferencing |
| Payload Capacity | 17 kg |
| Azimuth/Elevation Range | 0–350° / 0–120° |
| Max Tracking Speed | 4.5°/s |
| Torque | 12 N·m |