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| Brand | Topo |
|---|---|
| Origin | Tianjin, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Instrument Architecture | Dual-Beam |
| Detector | Photomultiplier Tube (PMT) |
| Wavelength Range | 190–900 nm |
| Spectral Bandwidth | 0.15 / 0.3 / 0.5 / 1.0 / 2.0 nm (5 selectable) |
| Wavelength Accuracy | ≤ ±0.3 nm |
| Stray Light | ≤ 0.2%T (at 220 nm, NaI solution) |
| Wavelength Repeatability | ≤ 0.1 nm |
| Photometric Accuracy | ±0.3%T (0.0–100.0%T) |
| Scan Modes | Continuous, Overlap, Time-based |
| Measurement Modes | Transmittance (%T), Absorbance (A), Energy (Single-Beam Reference) |
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