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SH-UVFS200 UV full spectrum absorption digital probe
Overview
The UV full spectrum absorption digital probe employs UV-Vis absorption technology to ascertain corresponding pollutant levels within water samples, achieved through dual-beam compensation integrated with chemometric algorithmic analysis. The measurement system comprises the measurement probe, controller, connecting cable (standard 10 metres), and a mechanical brush.
Measurement technique
Different pollutants in the water body have certain characteristics of light absorption at different wavelengths (water absorption spectral fingerprint), as shown in the following figure. The full-spectrum water quality probe detects pollutants in the water body using the absorption spectrum in the 190nm ~ 750nm band and a chemometric mapping relationship, so as to obtain the analysis of COD, TOC, BOD5, turbidity, colour, TSS, and nitrate pollutant content in water samples.
Product features
- Full-spectrum detection technology, no reagents, no secondary pollution
- Modular cleaning brush design, easy to replace, low maintenance costs
- Dual beam detection, automatic compensation for light source attenuation
- High measurement accuracy
- 4 kinds of variable optical range blocks, fast response time, 10-second rapid response.
Probe technical specifications
| Measured wavelength | 190~750 nm |
| Path length | 35 / 15 / 5 mm, selectable |
| Measurement parameters | COD, TOC, BOD, Nitrate, Turbidity, TSS, Colour, SAC254 |
| Response time | Less than 10 seconds |
| Measurement range (35 mm path length) |
COD: (0-70) mg/L; TOC: (0-30) mg/L; Nitrate: (0-5) mg/L; Turbidity: (0-200) NTU; TSS: (0-100) mg/L; Colour: (0~300) Hazen; SAC254: (0 to 70) Abs/m. |
| Measurement range (15mm path length) |
COD: (0 to 165) mg/L; TOC: (0 to 70) mg/L; Nitrate: (0–15) mg/L; Turbidity: (0~465) NTU; TSS: (0~230) mg/L; Colour: (0-700) Hazen; SAC254: (0 to 165) Abs/m. |
| Measurement range (5mm path length) |
COD: (0–500) mg/L; TOC: (0–210) mg/L; Nitrate: (0–50) mg/L; Turbidity: (0-1400) NTU; TSS: (0-700) mg/L; Colour: (0–2100) Hazen; SAC254: (0 to 500) Abs/m. |
| Performance indicators |
 Accuracy: no more than ±5.0% F.S.; Repeatability: ≤2.0%; Zero drift: no more than ±2% F.S.; |
| Automatic cleaning | The mechanical brush can be set to clean the optical window at regular intervals. |
| Serial connection | RS485 |
| Power supply | 24 Vdc / 10 W |
| Operating temperature | 0-50 °C |
| Protection class | IP68 |
| Dimensions | 44 (Φ) * 533 (L) mm |
| Weight | around 2.5 kg. |
Controller technical specifications
| User interface | 7-inch colour touchscreen |
| Power supply | 220VAC or 24VDC |
| Method of communication | 4G, HJ-212 compliant |
| Protection class | IP65 |
| Operating temperature | -20 to 60°C |
| Dimensions | 223 (L) * 199 (L) * 116 (H) mm |
Technical specifications for mechanical brushes
| Cleaning method | Automatic cleaning/manual cleaning |
| Control method | Switching signals |
| Operating temperature | (0~50) °C |
| Power supply | 12VDC/1W |
| Protection class | IP68 |
| Dimensions | 184 (W) x 85 (D) x 63 (H) mm |
Flow-cell technical specifications
| Internal volume | About 100 mL |
| Inlet/Outlet Pipe diameter | Outer diameter 8 mm, inner diameter 5 mm |
| Materials | Main body: polyurethane; viewing window: plexiglass |
| Dimensions | 184 (W) x 85 (D) x 63 (H) mm |
Product applications
Surface water, sewage plant process sections, storm sewerage network, river outfalls