Blue-Green Algae
IDA Integrated Digital Blue-Green Algae Sensor
Blue-Green Algae (Cyanobacteria)
Phycocyanin fluorescence sensor for blue-green algae density — early warning of cyanobacteria blooms at drinking water intakes and recreational waters.
- Specific detection of cyanobacteria via phycocyanin fluorescence
- Bloom early warning days before visible outbreaks
- Reagent-free, continuous in-situ measurement
- Digital Modbus networking for buoys and monitoring stations
Overview
A blue-green algae sensor measures the density of cyanobacteria in water. Because cyanobacteria can produce toxins and cause taste-and-odor events, continuous density monitoring gives water utilities the earliest possible bloom warning.
The IDA Integrated Digital Cyanobacteria Sensor measures cyanobacteria concentration by detecting fluorescence emitted by phytoplankton at a fixed angle relative to the excitation light. To improve accuracy, a reference channel monitors the original excitation light signal. Both the fluorescence and reference signals are processed to deliver precise cyanobacteria concentration readings.
Typical Applications
Features
- Innovative fluorescence-based measurement with no consumables and virtually maintenance-free operation
- Digital sensor with RS485 interface and Modbus RTU protocol for strong anti-interference performance
- Waterproof connector design for easy field maintenance of sensor and cable
- Self-cleaning option for long unattended deployment
Specifications
| Parameter | Specification |
|---|---|
| Measurement Method | Fluorescence method |
| Measuring Range | 0–280,000 cells/mL |
| Accuracy | ±5% or 140 cells/mL |
| Repeatability | 1% |
| Resolution | 1 cell/mL |
| Zero Drift | ±1% FS |
| Operating Temperature | 0–50 °C (non-freezing) |
| Protection Rating | IP68 |
| Operating Pressure | 0–6 bar |
| Communication Interface | RS485 interface, Modbus RTU protocol |
| Power Supply | 9–28 VDC |
| Dimensions | Φ40.5 × 295 mm |
| Material | 316L stainless steel |
Frequently Asked Questions
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