Chlorophyll Water Quality Sensor With RS485 Output Using Fluorescence Method
Product Introduction:
The online chlorophyll sensor is a high-precision optical sensor that adopts the principle of fluorescence and an integrated design. It can monitor the concentration of chlorophyll-a in water in real time and quickly reflect the biomass of phytoplankton. The sensor has a built-in temperature sensor that supports RS-485 (ModBus/RTU protocol) and optional 4-20 mA dual output mode, meeting the continuous online monitoring needs of scenarios such as river, lake, ocean surveys, aquaculture, and drinking water sources. The overall protection level of the machine reaches IP68, and it can work in a water depth of 20 meters for a long time. The structure is sturdy and easy to maintain.
Core Features:
- Fluorescence measurement: Utilizing the characteristic of chlorophyll a producing fluorescence under specific excitation light, without the need for reagents or extraction, it achieves rapid in-situ measurement. The response time (T90) is less than 30 seconds, the lowest detection limit is 1ug/L, the linear correlation coefficient R ² is 0.999, and the measurement is stable and reliable.
- High performance indicators: range of 0-400.0 ug/L, resolution of 0.1 ug/L, accuracy of ± 3% of reading. Built in Pt1000 temperature sensor, supports automatic temperature compensation, corrects the impact of temperature on fluorescence efficiency, and ensures data accuracy at different water temperatures.
- Reliable structure and output: The shell is made of 316L stainless steel, which has strong corrosion resistance; Immersion installation, equipped with 3/4NPT threads. Power supply 12-24V DC, power consumption only 0.2W@12V The RS-485 bus supports ModBus/RTU protocol, making it easy to connect to water quality monitoring systems or PLCs; At the same time, 4-20 mA analog output can be optionally selected to adapt to various acquisition devices.
- Easy maintenance: The sensor does not have an automatic cleaning component, but is designed with a measurement window that is easy to clean. Simply clean the outer surface and windows with tap water or a soft cloth in daily life to avoid interference from attachments. Pre calibration has been completed at the factory, supporting user two-point calibration (zero point and slope), and the calibration operation is simple.
RS485 Water Quality Chlorophyll Sensor:
| Model |
ZW-CHL-PR |
| Measuring Principle |
Fluorescence Method |
| Measuring Range & Resolution |
0～400.0 ug/L |
0.1 ug/L |
| Accuracy |
±3% of reading, ±0.3℃, linearity: 0.999 R² |
| Response Time (T90) |
＜30s |
| Minimum Detection Limit |
1ug/L |
| Calibration Method |
Two-point Calibration |
| Cleaning Method |
None |
| Temperature Compensation |
Automatic Temperature Compensation (Pt1000) |
| Output Signal |
RS-485 (Modbus RTU), 4-20 mA (optional) |
| Storage Temperature |
-5～65℃ |
| Operating Conditions |
0～50℃,＜0.2 MPa |
| Housing Material |
316L |
| Installation Method |
Submerged Installation, 3/4 NPT |
| Power Consumption |
0.2W@12V |
| Power Supply |
12～24V DC |
| Protection Class |
IP68 |
Product Display:
Application:
- Drinking water source: Real time monitoring of chlorophyll concentration at the water intake, warning of abnormal algal proliferation.
- Aquaculture: Master the dynamics of algae in ponds to prevent excessive reproduction of blue-green algae from causing dissolved oxygen fluctuations and toxin accumulation.
- Lakes, rivers, and reservoirs: assess the degree of eutrophication in water bodies and provide data support for the prevention and control of algal blooms.
- Marine survey and aquaculture: adapting to seawater environment, assisting phytoplankton research and aquaculture environment management.
Why RS485 for Water Quality Chlorophyll Monitoring?
Industrial-Grade & Stable Data Transmission: RS485 delivers robust anti-interference performance for real-time, reliable hardness data transmission in harsh environments (e.g., industrial boilers, municipal water supply), ensuring accurate monitoring.
Easy Integration & Scalability:Supports multi-node networking, seamlessly integrates with mainstream PLC/RTU systems, enabling flexible deployment and reducing system integration costs and maintenance complexity.
Production Process:
FAQ:
1.Are you manufacture?
A:Yes,we are Tranmitter manufacturer and exporter in China with more than 10 years of CE,ROHS,FCC,ISO and 11 patents experience.
2.Do you offer OEM services?
A:Yes,we can provide you with OEM services and design housings and logos.
3.DO you offer free samples?
A:Sorry,we don't offer free samples.After ordering in bulk,we will deduct the sample fee from the second order.
Why choose us:
- Strong R & D: 30+ Senior experts and highly educated personnel formed a R & D team, heavy investment, master a number of core technologies and patents.
- Professional and effective solutions: for smart environmental protection, agriculture and other fields, to provide customized compound networking solutions.
- Full range of products: covering the whole industry chain products from data collection to platform services to meet diverse needs.
- Excellent quality: we have perfect quality control system, strictly quality control each production link, low defective rate.
- Good service: 7×24 hours fast response, Professional pre-sale, sale, after-sales team support.
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Chlorophyll Water Quality Sensor With RS485 Output Using Fluorescence Method Images
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