The RS485 chlorophyll sensor, measuring 0~400 µg/L, uses fluorescence for accurate detection with ±5% FS error. It has 0.1 µg/L resolution, a 30-second response time, and runs on DC 7~30V. With an IP68 rating and RS485 ModBus-RTU interface, it's ideal for water quality monitoring in rivers, lakes, ponds, and aquaculture.
Specification
Model |
ATO-RS-CH-N01-2 |
Measurement Range |
0~400 μg/L; 0~100 RFU |
Measurement Error |
±5% FS (25°C); ±0.5°C |
Resolution |
0.1 μg/L; 0.1 RFU; Temperature: 0.1°C |
Response Time |
≤30 sec |
Working Conditions |
0~40°C |
Power Supply |
DC 7~30V |
Power Consumption |
0.4W |
Communication Interface |
RS485; Standard ModBus-RTU protocol; Communication Baud Rate: Default 4800 (1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 configurable) |
Measurement Principle |
Fluorescence Method |
Waterproof Rating |
IP68 |
Cable Length |
Default 5m |
Exterior Material |
Corrosion-resistant plastic |
Weight |
0.15kg |
Feature
- High Sensitivity and Stability: Delivers accurate, reliable measurements with strong resistance to external interference.
- Long-lasting and Durable: Designed for a long lifespan with minimal wear, suitable for continuous use in challenging environments.
- Quick Response Time: Enables real-time monitoring with rapid detection capabilities.
- Self-cleaning Function: Equipped with an integrated self-cleaning brush to maintain accuracy and reduce maintenance.
- Smart Temperature Compensation: Automatically adjusts for temperature changes, enhancing measurement precision.
- IP68 Waterproof Rating: Withstands underwater use up to 20 meters, thanks to a corrosion-resistant exterior.
- Easy Installation: Features 3/4 NPT threading for convenient and secure setup.
Detail
Size (Unit: mm)
Wiring Instructions
Function |
Wire Color |
Description |
Power |
Brown |
Power Positive (10~30VDC) |
Communication |
Black |
Power Negative |
Yellow |
485-A |
Blue |
485-B |
Application
Applications include research, surveys and testing of rivers, lakes, ponds, marine surveys, aquaculture, drinking water sources, algae and phytoplankton conditions.
Tips: How does the fluorescence detection method work in the RS485 Chlorophyll Sensor?
The RS485 Chlorophyll Sensor utilizes fluorescence detection, a method that measures chlorophyll by detecting the light emitted by chlorophyll molecules when excited by a specific wavelength. Chlorophyll fluoresces under blue or UV light, and this emitted light is captured and quantified by the sensor. This non-invasive method provides high sensitivity, allowing the sensor to detect even low concentrations of chlorophyll in water. The fluorescence method is preferred for chlorophyll measurements as it avoids chemical reagents, minimizes environmental impact, and maintains accuracy over a range of conditions.