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Model：
HD-ZXLLZ
Introduction：
Online Fluorescence Blue-green Algae Analyzer measures blue-green algae cell count online by the fluorescence method with an automatic cleaning brush. Widely used for rivers, lakes, reservoirs and drinking water sources to warn of algal blooms....
The online blue-green algae sensor uses the fluorescence principle to monitor the cell count. Compared with the traditional manual counting method it is faster and more efficient and allows real-time online monitoring. The sensor offers excellent repeatability and stability. An automatic cleaning brush eliminates air bubbles and reduces the influence of fouling on the measurement, extending the maintenance interval, so excellent stability is maintained even during long-term online use. It can provide an early warning of algal blooms.
1. LCD screen with a Chinese / English interface, making operation simple and convenient.
2. Good repeatability and high sensitivity; not affected by medium flow rate or pressure.
3. Imported TI chip and anti-interference circuit for higher precision and greater stability.
4. Photoelectrically isolated 4–20 mA current output and RS-485 / RS-232 communication interface.
5. Adjustable hysteresis (dead band) prevents the relay from switching too frequently.
6. Built-in watchdog; data retention after power failure exceeds 10 years.
7. Dual-relay upper and lower limit alarm output.
8. The sensor is temperature-compensated, which corrects the influence of temperature on the measured value.
9. Unique optical and electronic filtering technology using the fluorescence method; no electrolyte consumption.
10. Automatic cleaning brush removes particles, requiring no periodic maintenance.
11. Special functional requirements can be customised.
| Measuring range | 0–270,000 cells/mL |
| Resolution | 1 cell/mL |
| Accuracy | ±2 % of calibration value |
| Measuring principle | Fluorescence |
| Power supply | AC 220 V / DC 24 V, input power ≥ 5 W |
| Output | RS485, 4–20 mA, relay (optional), HART protocol (optional), NB / GPRS / LORA communication (optional) |
| Protection class | IP65 (controller) / IP68 (sensor) |
| Operating temperature | 0–60 °C (non-freezing) |
| Storage temperature | −10–60 °C |
| Installation | Immersion mounting |
| Electrode material | 316 stainless steel |
| Electrode dimensions | Φ28 × 161 mm |
| Controller dimensions | Wall-mounted, 156 × 150 × 85 mm |
| Cut-out size | Wall-mounted, 156 × 94 mm |
| Cable length | 10 m standard (extendable on request) |
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