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| Brand | WTW |
|---|---|
| Origin | Germany |
| Model | PhotoLab 6100 (VIS), PhotoLab 6600 (UV-VIS) |
| Optical Design | Pseudo-Double-Beam |
| Wavelength Range | 320–1100 nm (PhotoLab 6100), 190–1100 nm (PhotoLab 6600) |
| Light Source | Tungsten Halogen Lamp (6100), Xenon Flash Lamp (6600) |
| Wavelength Accuracy | ±1 nm |
| Spectral Bandwidth | 4 nm |
| Absorbance Range | –3.3 to +3.3 A |
| Absorbance Resolution | 0.005 A (at A = 2.0) or 0.5% of reading |
| Photometric Repeatability | ±0.002 A (at A = 1.0) |
| Photometric Accuracy | ±0.003 A (A < 0.600 A), ±0.5% of reading (0.600–2.000 A) |
| Linearity | <1% deviation (0–2.000 A, 340–900 nm) |
| Stray Light | <0.1% (at 340 nm and 408 nm) |
| Cuvette Recognition | Automatic (16 mm round, 10/20/50 mm square) |
| Data Storage | 1000 measurement records, 100 spectra (300–900 nm), 400 dynamic test series (150 values each) |
| Built-in Methods | 200 preprogrammed, 100 user-defined, 20 photometric analysis methods |
| Interface | USB-A (for USB drive, printer, barcode scanner), USB-B (PC connection), RS232 (PC/printer) |
| Compliance | CE, UL, IP30 |
| Operating Temperature | 10–35 °C |
| Dimensions | 404 × 197 × 314 mm (W × H × D) |
| Weight | ~4.5 kg (without power supply) |
| Brand | WTW |
|---|---|
| Origin | Germany |
| Model | photoLab S6 |
| Optical Design | Pseudo-Double-Beam |
| Wavelength Range | 340–690 nm (6 fixed interference filters) |
| Cuvette Compatibility | 16 mm and 28 mm round cuvettes |
| Auto-Method Selection | Yes (AutoSelect) |
| MemoChip Support | Yes |
| Compliance | Designed for ISO/IEC 17025-aligned routine analysis, supports GLP data integrity requirements |
| Software Interface | Standalone operation with on-device method execution and result display |
| Brand | WTW |
|---|---|
| Origin | Germany |
| Model | photoLab 7100 VIS |
| Optical Design | Single-beam |
| Detector | CCD (Charge-Coupled Device) |
| Wavelength Range | 320–1100 nm |
| Wavelength Accuracy | ±1.0 nm |
| Wavelength Repeatability | < 0.5 nm |
| Spectral Bandwidth | 4 nm |
| Stray Light | ≤0.01% T |
| Display | 7″ backlit color touchscreen |
| Sample Holders | Auto-identifying 16 mm round, 10/20/50 mm rectangular cuvettes with barcode recognition |
| Data Storage | 5,000 measurement values, 500 spectra, 400 kinetic curves |
| Built-in Methods | >230 preprogrammed test protocols (e.g., free chlorine, nitrate, phosphate, COD) |
| Custom Methods | Up to 1,000 user-defined calibration curves |
| Reagent-Free Tests | >50 methods requiring no chemical reagents |
| Interface | 1× USB-A, 1× USB-B, 1× Ethernet |
| Compliance | Designed for GLP/GMP-aligned workflows |
| Brand | WTW |
|---|---|
| Origin | Germany |
| Model | photoLab 7600 UV-VIS |
| Optical Design | Single-beam |
| Detector | CCD (Charge-Coupled Device) |
| Wavelength Range | 190–1100 nm |
| Wavelength Accuracy | ±1 nm |
| Wavelength Repeatability | ±1 nm / <0.5 nm |
| Spectral Bandwidth | 4 nm |
| Stray Light | ≤0.01% T |
| Light Source | Xenon lamp (≥13,000 h operational lifetime) |
| Cuvette Recognition | Automatic barcode-based identification for 10 mm, 20 mm, and 50 mm rectangular cuvettes and 16 mm round cells |
| Data Storage Capacity | 5,000 measurement values, 500 spectra, 400 kinetic curves |
| Built-in Methods | >230 pre-programmed test routines (e.g., free chlorine, nitrate-N, COD, phosphate, SAC, color, CO₂, NH₃-N) |
| Custom Method Support | Up to 1,000 user-defined calibration curves |
| Reagent-Free Testing | Enabled for select parameters (e.g., total COD: 2–75 mg/L, soluble COD: 2–75 mg/L, NO₃-N: 0.1–3.0 mg/L, NO₂-N: 0.1–4.0 mg/L) |
| Software Compliance | Audit-trail enabled, GLP-compliant data handling, FDA 21 CFR Part 11 ready (with optional user authentication module) |
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