SH-CHL200 Chlorophyll A digital sensor
Overview
SH-CHL-200 Chlorophyll A digital sensor adopts specific wavelength and high brightness monochrome light to excite chlorophyll A to emit fluorescence, and receives its fluorescence signal through the highly sensitive photoelectric sensor, and obtains the chlorophyll a concentration in the water body according to the proportionality relationship between the fluorescence intensity and chlorophyll a concentration. The digital intelligent design of the device adopts RS485 interface and standard Modbus protocol, comes with cleaning brush and temperature compensation, with functions of calibration, recording, analysis and diagnosis.
Product features
- Self-cleaning function to remove adherents and air bubbles, maintenance-free
- Optical and digital filtering technology to eliminate the effects of stray light
- Corrosion-resistant housing, waterproof grade IP68, can work underwater for a long time
- RS485 communication interface, standard Modbus protocol for easy integration.
Technical specifications
| Working Principle | Fluorescence |
| Measurement range | Chlorophyll: (0-50/500) μg/L, other ranges can be customized
Temperature: (0~50) °C |
| Repeatability | ≤1 % |
| Accuracy | ±5 % |
| Zero drift (24h) | ±1 % F.S. |
| Range drift (24h) | ±3 % F.S. |
| Detection limit | 0,1 μg/L |
| Resolution | 0,01 μg/L |
| Protection class | IP68 |
| Comm. interface | RS485, standard Modbus protocol, baud rate 9600 |
| Dimensions | (φ33*178) mm, cable 10 m (customizable) |
| Materials | 316 Stainless-steel/PVC/POM/Titanium alloy available |
| Weight | 0,5 kg |
| Mounting threads | Upper NPT3/4 thread |
| Operating voltage | 9~36 Vdc |
| Power consumption | 1 W (motor brushes rotating), 0.4 W (motor brushes not working) |
| Cleaning method | Mechanical brush |
| Calibration period | 3-6 months |
| Max. depth | 30 meters |
| Operating temp. | (0~50) °C |
Product applications
Environmental surface water, aquaculture plants