
How to Choose the Right Liquid Analysis Solution for Industrial Applications
Selecting the right liquid analysis solution is critical for industrial process efficiency, product quality, and regulatory compliance. With multiple parameters...
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For environmental engineers, laboratory analysts, and industrial wastewater managers, rapid, reliable, and versatile COD measurement is essential for regulatory compliance, process control, and environmental monitoring.
The Instrava COD Analyzer provides fast detection of COD across 20–10,000 mg/L, with direct concentration readout and flexible measurement modes for both φ16mm tubes and 30mm cuvettes. The high-definition 3.5-inch OLED display and intuitive dial-style UI make operation simple, while the included LH-A109 9-hole digestion unit enables precise, reproducible sample preparation. Portable, lightweight, and durable, the instrument is designed to handle both field and laboratory workflows.
Liquid Analysis Description
Laboratory & Field COD Analyzer Typical Application Scenarios
Environmental laboratories conducting surface water, groundwater, and industrial wastewater testing
On-site emergency water quality monitoring
Industrial wastewater treatment plants (chemical, food & beverage, textile, electroplating, papermaking)
Regulatory compliance monitoring for municipal sewage and effluent discharge
Research institutions and universities requiring rapid COD analysis
This analyzer is suitable for both laboratory-grade testing and field-based rapid assessment, supporting multiple industries and measurement scenarios.


Laboratory & Field COD Analyzer Engineering Advantages
Wide Detection Range: Supports COD measurement from 20–10,000 mg/L with segmented ranges for high accuracy.
Dual Measurement Modes: Supports φ16mm tube and 30mm cuvette measurements, increasing flexibility for various laboratory setups.
High-Definition OLED Display: 3.5-inch color screen with dynamic dial interface, clearly shows range, over-limit warnings, and measurement values for intuitive operation.
Stable & Durable Optical System: Cold light source with narrow-band interference ensures long-term stability, 10⁵ hours lifetime, and reliable absorbance readings.
Robust Instrument Body: ABS casing reduces wear and tear in laboratory or field environments.
Built-In Data Storage: Stores up to 5,000 measurement records for easy traceability and reporting.
Integrated Digestion Unit: supports 9-hole digestion, accurate temperature control (±2°C), and 15 pre-configured COD curves, improving repeatability and throughput.
Liquid Analysis Parameter
| Parameter | Specification |
|---|---|
| Measurement Range | 20–10,000 mg/L (segmented) |
| Measurement Modes | φ16mm tube, 30mm cuvette |
| Display | 3.5-inch OLED color display, dial-style UI |
| Reproducibility | ≤3% |
| Indication Error | ≤8% |
| Data Storage | 5,000 records |
| Instrument Size | 215 × 150 × 110 mm |
| Instrument Weight | 0.85 kg |
| Rated Voltage | AC 220V ±10% / 50Hz |
| Power | 4W |
| Parameter | Specification |
|---|---|
| Temperature Range | Room temperature – 190°C |
| Heating Time | Room temp – 165°C < 10 min |
| Temperature Accuracy | ±2°C |
| Digestion Time Error | ≤ ±0.2s / 60min |
| Number of Digestion Holes | 9 |
| Pre-configured COD Curves | 15 |
| Screen | 3.5-inch color touch screen |
| Digestion Tube Diameter | φ16mm |
| Tube Height | 150mm |
| Heating Liquid Depth | 80mm |
| Digestion Capacity | 0–10 mL |
| Instrument Size | 247 × 176 × 200 mm |
| Instrument Weight | 3.8 kg |
| Rated Voltage | AC 220V ±10% / 50Hz |
| Power | 600W |
Instrava OEM/ODM
Reliable Instruments. Solutions That Fit Your Application.
Instrava is focused on delivering reliable industrial solutions through carefully curated products, application-driven optimization, and flexible customization. We select proven instruments from trusted manufacturers to ensure consistent quality, optimize solutions based on real working conditions to solve practical challenges, and provide tailored configurations to meet specific application needs.
By combining selection expertise with application understanding, Instrava helps customers reduce risk, improve efficiency, and achieve dependable results in complex industrial environments.

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How does the ensure accuracy across such a wide COD range?
The analyzer uses segmented measurement ranges (20–10,000 mg/L) and supports both φ16mm tubes and 30mm cuvettes, providing precise readings even in highly variable wastewater concentrations. Engineers benefit from reliable, reproducible data for compliance and process control.
Can this system handle both laboratory and on-site field testing?
Yes. The compact 0.85 kg main unit and portable LH-A109 digestion block allow for field deployment without sacrificing laboratory-grade precision. Its durable ABS casing ensures long-term reliability in harsh industrial environments.
How does the integrated digestion unit improve workflow efficiency?
The supports 9-hole digestion, fast heating (room temp–165°C in <10 minutes), and pre-configured COD curves. This reduces sample preparation time, improves throughput, and ensures consistent, traceable results for industrial and environmental monitoring.
What makes the COD analyzer suitable for procurement and lifecycle cost considerations?
With low power consumption (4W), maintenance-free operation, long-life cold light source, and 5,000-record internal storage, the analyzer minimizes total cost of ownership while providing high reliability across multiple deployment sites.
How does the analyzer handle measurement over-range or unexpected sample conditions?
The dynamic dial interface provides real-time over-range warnings, and the instrument automatically adjusts measurement parameters. This ensures safe, accurate readings and reduces the risk of false data in high-concentration or complex samples.
What features simplify adoption for engineering teams and field operators?
High-definition OLED display with intuitive dial-style UI
Pre-set and customizable COD curves for multiple applications
Dual measurement modes for tubes and cuvettes
Lightweight, portable design for rapid deployment
These features reduce training time and make the instrument suitable for both laboratory analysts and field engineers, accelerating project implementation.
Built on Consistency, Not Claims
We specialize in industrial analysis and detection, with a clear understanding of real-world operating environments and requirements.
Every instrument is evaluated based on performance, stability, and application suitability—not just specifications or pricing.
We work with trusted manufacturers to ensure stable supply, consistent quality, and dependable delivery.
Our recommendations are grounded in application understanding, helping customers avoid common issues and achieve reliable results.
Instrava is built to reduce uncertainty—so every decision you make is clearer, safer, and more reliable.

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