Online COD Analyzer – Continuous Monitoring of Organic Pollution in Industrial & Municipal Water

Ensure reliable and continuous monitoring of organic contamination in wastewater with our Online COD Analyzer. Designed for real-time, automatic measurement of Chemical Oxygen Demand (COD), this analyzer provides critical insights into the organic load of water and helps maintain compliance with environmental discharge regulations.

Built for industrial, municipal, and environmental applications, the analyzer uses advanced UV-visible absorption or wet chemical (dichromate method) technology to deliver fast, accurate, and low-maintenance COD measurements in demanding process environments.

Product Overview

Our COD Analyzer accurately measures the amount of oxygen required to oxidize organic matter present in water or wastewater, expressed in mg/L. Available in multiple configurations and measuring ranges, the system can be tailored to fit your process needs, whether for inlet monitoring, process control, or final discharge compliance.

With automatic sampling, self-cleaning, and programmable data outputs, this analyzer ensures unattended, continuous operation with minimal maintenance — significantly reducing manual sampling and laboratory analysis.

Key Features

Wide Measuring Range
Configurable ranges from 0–100 mg/L up to 0–10,000 mg/L, suitable for clean water and heavily polluted effluents.

Advanced Measurement Principles

UV Absorption Method for reagent-free, low-maintenance measurement

Wet Dichromate Oxidation (Closed Reflux) for high-accuracy standard COD analysis (EPA/ISO compliant)

Fully Automated Operation
Automatic sampling, digestion, measurement, and cleaning cycles — reduces operator intervention.

Low Reagent Consumption
Efficient reagent usage with minimal waste generation. Some models available in reagent-free UV design.

Temperature & Pressure Compensation
Ensures stability and accuracy across changing process conditions.

User-Friendly Interface
Intuitive touchscreen display for live readings, diagnostics, alarms, and system configuration.

Multiple Outputs

4–20 mA analog output

RS485 Modbus RTU for integration into PLC/SCADA systems

Relay outputs for alarms or pump control

Self-Cleaning & Auto-Calibration
Built-in cleaning and calibration cycles minimize maintenance and ensure long-term accuracy.

IP65 / IP66 Enclosure
Weatherproof, dustproof housing suitable for harsh industrial and outdoor installations.

Optional Flameproof/Ex-Proof Enclosure
Available for hazardous area installations (Zone 1 / Zone 2 – ATEX, IECEx, PESO compliant).

Applications

The Online COD Analyzer is ideal for a wide range of industrial and environmental water monitoring tasks:

Municipal Wastewater Treatment Plants – Influent/effluent COD monitoring for compliance

Industrial Effluent Monitoring – For sectors like chemicals, paper, food, pharma, textiles, sugar, and oil & gas

Environmental Monitoring – Surface water and river pollution analysis

Process Water Analysis – Control of organic load in production processes

Power Plants – Monitor COD in wastewater from scrubbers and cooling systems

Beverage and Food Industry – Manage organic content in CIP and waste streams