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Model：
HD-SVFA
Introduction：
Volatile Fatty Acid Analyzer measures volatile fatty acid concentration in water without distillation or titration. Widely used for research, universities, wastewater treatment plants and water environment testing....
The HD-SVFA determines the volatile fatty acid (VFA) concentration of water. It is equipped with a high-definition colour LCD touchscreen and the Android smart operating system, with a Chinese interface and a Chinese/English keyboard for simple, user-friendly operation. No distillation or titration is needed, so testing is several times faster than the acid-base titration method. It is widely used in research, universities, wastewater treatment plants, water environment monitoring and industrial self-monitoring.
Scientific research
Universities
Wastewater treatment plants
Water environment monitoring
Industrial wastewater self-monitoring
1. Esterification spectrophotometric method - no distillation step, results in 20 minutes.
2. Android smart operating system for simpler and faster operation.
3. Cloud monitoring platform: results can be transmitted wirelessly for short- and long-term water quality analysis and auxiliary management.
4. Built-in operating procedures - simple to use, no training required.
5. Fast detection with on-site data reading.
6. Portable, compact and light for convenient field testing.
7. Compact and attractive appearance, stable and maintenance-free operation, with a favourable cost-performance ratio.
8. Imported cold light source with stable optical performance and a service life of up to 100,000 hours.
9. AC/DC dual power supply with a built-in rechargeable lithium battery, suitable for continuous indoor and outdoor work.
| Detection item | Volatile fatty acids (VFA) in water samples |
| Measurement range | 0.5–60 mmol/L |
| Indication error | ≤ ±10% |
| Relative error on real samples | 10% above 2 mmol/L; 10%–20% at or below 2 mmol/L (versus the VFA acid-base titration method) |
| Standard sample error | 5% above 2 mmol/L; 10%–15% at or below 2 mmol/L |
| Optical stability | < 0.005 A/20 min |
| Colorimetric method | φ16 mm integrated digestion and colorimetric tube |
| Measurement method | Photoelectric colorimetry |
| Repeatability | < 0.5% |
| Stability | < 0.5% |
| Wavelength selection | Automatic |
| Operating system | Android smart operating system |
| Display | 3.5-inch color LCD touchscreen |
| Sensitivity (absorbance) | 0.001 |
| Operating environment | 0–50 °C, 0–90% RH |
| Data storage | Over 80,000 records |
| Communication | Type-C, WiFi, hotspot, Bluetooth |
| Battery | 5,600 mAh lithium battery |
| Continuous operation | 8 hours |
| Power supply | 5 VDC |
| Dimensions | 190 × 77 × 72 mm |
| Net weight | 325 g |
| Language | Simplified Chinese / English |
An optional portable Bluetooth printer is available.
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