Utilizing the UV254 absorption method, this multi-parameter water quality monitoring equipment accurately measures Chemical Oxygen Demand (COD) while simultaneously detecting parameters such as pH, dissolved oxygen, and ammonia nitrogen. It supports sensor expansion and data export, is compatible with various industrial control devices, and is suitable for routine water quality monitoring across diverse scenarios.
Water quality monitoring is fundamental to aquatic environmental management, wastewater discharge control, and the preservation of aquatic ecosystems. As a key indicator of organic pollution, precise and real-time COD monitoring is crucial for effective water quality management. Designed to meet the specific needs of various water monitoring environments, the equipment focuses on COD detection while also covering standard parameters—such as conductivity, pH, dissolved oxygen, ammonia nitrogen, turbidity, and water temperature—to provide comprehensive data collection.
The equipment employs the proven UV254 absorption method for COD detection, offering a measurement range of 0–1000 mg/L, accuracy of ±5% (and ±0.3°C for temperature), and a resolution of 0.1 mg/L. Its high-precision sensors capture real-time fluctuations in COD levels, ensuring both accuracy and timeliness. Unlike traditional laboratory methods, this equipment eliminates the need for complex pre-treatment, enabling rapid on-site analysis. It overcomes issues associated with traditional testing—such as long turnaround times, cumbersome procedures, and data lag—thereby providing immediate data support for emergency water quality management and routine inspections.
With flexible expansion capabilities, the equipment allows users to select and combine specific multi-parameter sensors—such as those for surface water, industrial wastewater, domestic sewage, or aquaculture water—to meet diverse monitoring requirements. It automatically records and stores real-time data and alarm history, with a one-click export function that facilitates data archiving, analysis, and traceability for operational staff. Regarding data transmission, the multi-parameter water quality monitoring device is equipped with an RS485 interface and supports the Modbus-RTU communication protocol. It enables stable integration with various industrial control and transmission equipment—such as PLCs, DCSs, SCADA software, and DTUs—facilitating real-time data transmission and remote management. Suitable for diverse applications including wastewater treatment plants, industrial parks, environmental monitoring stations, and river or lake monitoring, the device has become a core component for routine, online COD monitoring, thanks to its stable performance, high measurement accuracy, and ease of integration.
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