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| Brand | GBPI |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Model | L9 |
| Wavelength Range | 190–1100 nm |
| Optical Design | Czerny-Turner Monochromator |
| Focal Length | 200 mm |
| Grating Density | 1600 lines/mm |
| Spectral Bandwidth | 0.5 / 1 / 2 / 4 / 5 nm (standard at 2 nm) |
| Wavelength Accuracy | ±0.3 nm (typical ≤±0.2 nm) |
| Wavelength Repeatability | ≤0.1 nm |
| Stray Light | ≤0.02% T (at 220 nm, NaI |
| Photometric Range | 0.0–200.0% T, –0.301–4.000 A, 0.000–9999 C |
| Photometric Accuracy | ±0.2% T, ±0.0009 A (0–0.5 A), ±0.002 A (0.5–1 A) |
| Photometric Repeatability | ≤0.08% T, ≤0.0004 A (0–0.5 A), ≤0.008 A (0.5–1 A) |
| Baseline Flatness | ±0.0006 A |
| Noise | 0.03% T / 0.00015 A |
| Baseline Drift | 0.0003 A/h (after 2 h warm-up at 250 nm & 500 nm) |
| Light Source | Imported deuterium lamp + tungsten-halogen lamp, auto-switching at 340 nm (adjustable) |
| Detector | Imported photodiode array or silicon photodetector |
| Display | 10.1″ capacitive touch screen, Android 10 OS, 262k-color, 178° viewing angle |
| Data Storage | 8 GB internal memory |
| Connectivity | USB port, Wi-Fi, Bluetooth |
| Software Options | UVWin8 PC software (optional), GLP-compliant data logging and audit trail support |
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