Biological SensorsTL-CHLO-206A
Chlorophyll Sensor
Biological Sensors
Chlorophyll Sensor
TL-CHLO-206A
Optical fluorescence chlorophyll-a sensor. Range 0–400 μg/L, IP68, RS485 + 4-20mA.
Request a QuoteProduct Overview
The TL-CHLO-206A measures chlorophyll-a concentration in natural water bodies using optical fluorescence. Used for algae bloom monitoring, eutrophication assessment, and aquatic ecosystem health evaluation.
Working Principle
The sensor uses a continuous online measurement principle with automatic temperature compensation. The measurement signal is processed by an integrated microprocessor and transmitted via RS485 Modbus RTU for direct integration with PLCs, data loggers, and SCADA systems. The 4–20 mA analog output provides compatibility with legacy control systems.
Wiring & Signal Output
Power supply: 12–24 V DC (standard); 220 V AC with adapter
Primary output: RS485 Modbus RTU (address configurable 1–247)
Analog output: 4–20 mA (proportional to measured value)
Relay output: 2 × SPDT relay for alarm / dosing control
Communication: Modbus RTU function codes 03 / 06 / 16
Cable entry: M16 cable gland, IP68 submersible cable available
Technical Specifications
| Parameter | Value |
|---|---|
| Measurement Principle | Optical fluorescence |
| Measuring Range | 0–400.0 μg/L |
| Accuracy | ±3% FS |
| Resolution | 0.1 μg/L |
| Working Conditions | 0–50°C, 0–2 Bar |
| Power Supply | 12–24 VDC |
| Connection | 3/4" NPT Thread |
| Signal Output | RS485 Modbus RTU + 4-20mA |
| Calibration | 2-point calibration |
| Protection | IP68 |
| Cable Length | 5m |
| Material | 316 stainless steel |
Key Features
- Optical fluorescence chlorophyll-a detection
- Algae bloom monitoring and eutrophication assessment
- Continuous online measurement
- IP68 for long-term deployment
Typical Applications
Lakes and reservoirsRiver monitoringAquacultureEnvironmental research
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