Portable Chlorophyll Meter FT-ZS15S: Supporting Efficient Chlorophyll Measurement in Water Monitoring

In water monitoring work, chlorophyll measurement is a crucial part. As the core substance for photosynthesis in aquatic plants, the chlorophyll content can directly reflect the quantity of phytoplankton in the water. By measuring chlorophyll, staff can determine the degree of water eutrophication — if the chlorophyll content is relatively high, it indicates that phytoplankton has reproduced in large quantities, which is likely to trigger environmental issues such as algal blooms, thereby affecting the ecological balance of the water body and water quality safety. In addition, chlorophyll data can also help evaluate the primary productivity of the water body, clarify the status of the aquatic ecosystem, and provide a basis for formulating subsequent water quality management and ecological protection measures.

Among natural water bodies, rivers, lakes, and reservoirs are key monitoring targets. These water bodies are closely related to people's production and daily life; the quality of the water directly affects the safety of drinking water and also impacts the surrounding ecology. Oceans, especially coastal waters, also require focused monitoring. With the help of chlorophyll data, the occurrence trend of disasters such as red tides can be grasped in a timely manner, and preparations for response can be made in advance. For artificial water bodies like aquaculture ponds, regular chlorophyll measurement is necessary. Staff adjust the breeding density and feeding amount based on the data to ensure a suitable growth environment for the cultured organisms. The effluent water from sewage treatment plants also needs to be monitored for chlorophyll, so as to evaluate the treatment effect and ensure that the discharged water meets relevant standards.

To enable efficient and accurate monitoring of water chlorophyll, we have launched the Portable Chlorophyll Meter, model FT-ZS15S.

This instrument adopts the fluorescence measurement principle, which can quickly detect the fluorescence signal emitted by chlorophyll in the water and then accurately calculate the chlorophyll content. Its signal mode is RS485 (MODBUS-RTU), which has good anti-interference ability. During the transmission of measurement data, it can maintain stability and reliability, and also facilitate data interaction with other monitoring equipment or systems.

The measurement range of this instrument is 0-400 μg/L, which can cover the chlorophyll content of most water bodies and meet the monitoring needs of different scenarios. The resolution can reach 0.01 μg/L, which can accurately identify trace changes and provide high-precision data support for monitoring work. The measurement accuracy is based on the standard of R² > 0.999, which means the measurement results have a high degree of consistency with the true values, and the data reliability is guaranteed.

The standard cable length of the instrument is 5 meters, which can adapt to different installation environments and facilitate wiring operations. It can work normally at a temperature of 0~50℃ (non-freezing), can withstand a pressure of < 0.2Mpa, and has a waterproof rating of IP68 — even if it is immersed in water for a long time, it can effectively block water intrusion, ensure the normal operation of internal components, and be applicable to various water environment monitoring scenarios.

During installation, it adopts an immersion-type installation method, matched with NPT3/4 threads. The installation is simple, and the instrument can be stably fixed at the monitoring position, reducing the impact of external factors on the measurement. In addition, the instrument is also equipped with an automatic cleaner, which can prevent biological attachment on the optical window and avoid the impact of optical window pollution on measurement accuracy. Users can also set the time and frequency of automatic cleaning according to actual needs. Moreover, the power consumption during the cleaning process is only 0.7W, which not only ensures the cleaning effect but also effectively reduces energy consumption.