Product Overview:

The CODmax III COD online detector is a next-generation chemical oxygen demand monitoring solution launched by Hash Companies. This instrument adopts the high-temperature digestion principle of potassium dichromate that complies with national standards such as HJ 377-2019, combined with advanced photometric measurement technology, providing highly reliable COD data support for pollution source monitoring, industrial process control, and surface water monitoring. Its innovative anti-fouling design and intelligent pre-diagnostic system significantly enhance equipment stability and operational efficiency.

Working Principle:

The new generation CODmax III COD online detector uses the potassium dichromate method for high-temperature digestion, while the COD detector uses the photometric method to measure sample absorbance, achieving precise analysis and determination through the linear relationship between absorbance and the COD value of the water sample. This CODmax III COD detector meets the requirements of the new standards HJ 377-2019 and HJ 35X-2019. Its measurement data matches well with the laboratory method HJ 828-2017, making it a highly reliable rapid COD detector.

Instrument Features:

● Added antifouling measurement flow mode, significantly extending maintenance cycles for sample-intake/metering and digestion units.

● Utilizes advanced piston pump sampling technology, ensuring a service life of over one year and ensuring long-term stable operation.

● Multi-stage optical metrology system effectively shortens measurement time and improves ultra-low range measurement accuracy.

● Brand-new reagent formula, simple original reagent purchase process; The self-preparation process is simple and convenient, significantly reducing preparation time.

● Equipped with advanced Hash Prognosys pre-diagnostic technology and Diagnose diagnostic technology, further enhancing the device's intelligence level.

Prognosys Prediagnostic Function: The CODmax III COD online detector can display on-screen indications for impending instrument issues and output via digital interface, allowing users to take preventive measures in advance. The instructional information provided by CODmax III feedback provides information needed for planned preventive maintenance and emergency responses, displayed on the screen as a progress bar percentage for easy user identification.

Diagnose self-diagnostic function: The CODmax III COD online detector can automatically diagnose instrument status, display diagnostic results on the screen, query diagnostic information, and output via digital interface, making it convenient for users to check and analyze the device's operating status at any time.

Application Areas:

The CODmax III COD detector can be used for pollution source monitoring (including municipal sewage inlet and outlet; industrial sewage outlets); Industrial process water use monitoring; Surface water monitoring and other fields, suitable for various water quality testing needs.

• Pollution source emission monitoring

  Suitable for online COD monitoring at key points such as municipal sewage treatment plant inlets and outlets, industrial sewage discharge outlets, effectively monitoring compliance with sewage discharge standards; It can also be used for real-time monitoring of centralized wastewater treatment facilities in industrial parks and wastewater discharge outlets of key regulated enterprises

• Industrial process control

  COD indicator monitoring and optimization for process water, circulating cooling water, and wastewater treatment processes in industries such as petrochemicals, pharmaceuticals, food, and papermaking, providing data support for production process adjustments and wastewater treatment effectiveness evaluation.

• Surface water environment monitoring

  It is suitable for daily monitoring and early warning of COD indicators in surface water bodies such as rivers, lakes, and reservoirs, and is especially suitable for long-term, continuous observation and evaluation of organic pollution by automatic water quality monitoring stations.