Chemical Oxygen Demand (COD) Analyzer for Industrial and Environmental Water Quality Monitoring

For environmental engineers, industrial operators, and wastewater treatment managers, rapid, accurate, and reliable COD measurement is critical for regulatory compliance, process optimization, and real-time water quality control.

The Instrava Chemical Oxygen Demand (COD) Analyzer delivers fast catalytic (chromium) method detection, providing COD readings within 15 minutes across a wide range of 50–800 mg/L. Optional dilution extends measurement beyond 800 mg/L. Its compact, portable design (1.0 kg, 215×150×110 mm) ensures immediate field deployment, enabling faster decision-making and process adjustment with minimal operational overhead.

Liquid Analysis Description  

Chemical Oxygen Demand (COD) Analyzer for Typical Application Scenarios

  • Industrial wastewater monitoring and compliance verification

  • Municipal sewage and surface water quality assessment

  • Environmental emergency and spill response

  • Laboratories performing routine water quality analysis

  • Chemical, food and beverage, textile, papermaking, and electroplating industries

The analyzer is ideal for both field and laboratory applications, offering flexibility for environmental monitoring programs or process control verification.

Multi-range COD water quality analyzer, convenient water testing
Portable water quality testing device, testing water sample

Chemical Oxygen Demand (COD) Analyzer for Engineering Advantages

  • Fast & Accurate Measurement: COD results within 15 minutes; high reproducibility (≤±3%) ensures confidence in data for regulatory reporting.

  • Chloride Interference Resistance: Handles [Cl⁻] up to 1000 mg/L standard, 4000 mg/L optional, reducing sample pretreatment steps.

  • Compact & Portable: Lightweight 1.0 kg, small footprint, easy to deploy for field inspections or laboratory analysis.

  • Low Power Consumption: Rated power 3W, suitable for continuous operation without significant energy requirements.

  • User-Friendly Operation: Digital display and colorimetric cuvette measurement simplify workflow; minimal training required.

Liquid Analysis Parameter  

Chemical Oxygen Demand (COD) Analyzer for Technical Specifications

Parameter Specification
Measurement Method Rapid catalytic method (chromium method)
COD Measuring Range 50–800 mg/L (dilution method for >800 mg/L)
Measurement Time 15 minutes
Reproducibility ≤ ±3%
Chloride Interference Standard: <1000 mg/L; Optional: <4000 mg/L
Display Digital display
Colorimetric Measurement Cuvette-based
Instrument Dimensions 215 × 150 × 110 mm
Weight 1.0 kg
Operating Temperature 5–40°C
Relative Humidity <85% RH (non-condensing)
Rated Voltage AC 220V ±10% / 50Hz
Rated Power 3W

Instrava OEM/ODM  

Tailored Sourcing & Customization: Getting You the Exact Product You Need

As your trusted supplier and sourcing partner, we bridge the gap between your custom requirements and China’s vast manufacturing capabilities.

Finding the right product in a massive supply chain can be challenging. That is where we step in.

As a curated industrial supplier, our core value is simple: we stand in your shoes to help you procure the most optimal products. Whether you are an EPC contractor needing specialized technical compliance, an OEM equipment manufacturer looking for custom branding, or an industrial distributor/trader seeking competitive edge, we customize and tailor products to fit your exact procurement needs.

How We Customize to Fit Your Procurement Needs

  • For EPC Contractors & Engineers: We custom-configure instruments and devices to match your precise datasheets—tailoring process connections, exotic materials, signal protocols, and managing third-party calibration and testing so you get project-ready solutions.

  • For OEM Equipment Manufacturers: We provide comprehensive OEM/ODM customization, including custom housing, labeling, branding (private labeling), and tailored technical specifications to seamlessly integrate with your machinery.

  • For Industrial Distributors & Traders: We offer flexible customization in packaging, product ranges, and technical parameters, helping you differentiate your portfolio and win more local bids.

Why Partner with Us for Custom Sourcing?

  • One-Stop Engineering Alignment: You don’t have to deal with multiple factories. We translate your technical requirements into precise manufacturer blueprints.

  • Strict Quality & Compliance Safeguard: We oversee the entire customization and production process in China, ensuring the final customized product meets your local standards and certifications.

  • Our Ultimate Value: We don’t just sell what’s on the shelf. We find, customize, and deliver the most suitable and cost-effective product for your unique application.

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Related Product Recommendations  

The analyzer resists interference from chloride ions up to 1000 mg/L (standard) or 4000 mg/L (optional), reducing false readings and eliminating the need for extensive sample pretreatment. Engineers can rely on stable and repeatable COD data in challenging industrial wastewater conditions.

Yes. With its compact 1.0 kg design and digital display, the instrument is easily portable for field inspections, while providing laboratory-grade reproducibility (≤±3%). This flexibility supports both compliance monitoring and on-site process optimization.

Using the rapid catalytic (chromium) method, the analyzer delivers results in 15 minutes. For process control or environmental monitoring, this enables immediate corrective actions without waiting for centralized lab results, reducing downtime and operational risk.

The analyzer is low-power (3W), maintenance-free, and robust against environmental conditions (5–40°C, RH <85%). Minimal consumables and high reproducibility reduce total cost of ownership while ensuring reliable performance across multiple sites or plants.

For high-COD samples, a dilution measurement method is used, allowing operators to extend the detection range safely. This ensures accurate readings in heavily contaminated wastewater, common in chemical, food, or textile industries.

  • Digital display and cuvette-based colorimetry for intuitive use

  • Compact and lightweight design for field portability

  • Standard AC 220V power ensures compatibility in industrial and laboratory settings
    These features reduce training time, simplify inventory planning, and allow immediate integration into existing water quality monitoring programs.

Why Trust Instrava?

We select manufacturers from a neutral, impartial standpoint, always with your best interests in mind.

Our very existence depends on helping you source the products that are the perfect fit for your needs.

Based in China, we are able to conduct on-site inspections of production environments and product quality firsthand.

We help you avoid intermediaries posing as factories.

We facilitate smoother after-sales support, eliminating time zone issues and the delays often associated with dealing directly with factories.

Our multilingual team ensures effective communication.

For a trading startup, every interaction with a client is a precious opportunity—a sign that you are willing to place your trust in us and give us the chance to prove ourselves.
In the digital age, while information is easily accessible, misconceptions often cloud the trust between people.

Instrava relies entirely on trust; it is our core philosophy and the foundation of our existence in society. It is the fundamental basis for our long-term growth and our commitment to serving the community.

Please place your trust in us.

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