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Liquid Analysis
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In industrial wastewater discharge control and environmental compliance monitoring, delayed laboratory results can increase regulatory risk and slow operational decision-making. Field inspectors and plant engineers require fast, accurate, and traceable COD data directly on-site to ensure discharge standards are met and treatment processes remain optimized.
The Instrava Portable Water Quality Detector & COD Analyzer is engineered for rapid digestion spectrophotometric measurement in accordance with HJ/T399-2007 standards. Equipped with an Android intelligent operating system, wireless cloud connectivity, and integrated digestion-colorimetry technology, the instrument delivers real-time COD results within minutes, supporting compliance verification, process adjustment, and emergency response.
Designed for professional field use, this device combines laboratory-level optical precision with true portability.
Liquid Analysis Description
Portable Water Quality Detector Typical Application Scenarios
Industrial wastewater discharge monitoring
Municipal sewage treatment plants
Environmental protection inspections and emergency monitoring
Pharmaceutical and chemical effluent control
Food and beverage production wastewater analysis
Textile printing and dyeing wastewater management
Electroplating and metallurgical wastewater testing
River basin management and environmental field surveys
Scientific research institutions and university laboratories
The instrument supports both routine compliance testing and rapid emergency assessment in complex industrial environments.


Portable Water Quality Detector Engineering Advantages
Designed according to HJ/T399-2007 Rapid Digestion Spectrophotometry, ensuring reliable COD measurement aligned with regulatory requirements.
High-definition color LCD touch screen
Chinese and English interface
Built-in operating procedures
No complex training required
Provides intuitive navigation and efficient operation in field conditions.
Combined digestion-colorimetry tube system reduces handling steps, improves repeatability, and accelerates measurement speed for on-site use.
Measurement data can be transmitted via WIFI or Bluetooth to a cloud monitoring platform for:
Long-term and short-term water quality trend analysis
Centralized data management
Remote supervisory oversight
Enhancing digital water quality management.
Imported cold light source
Optical life up to 100,000 hours
Automatic wavelength selection
Ensures long-term stability and reduced maintenance frequency.
Compact size: 190 × 77 × 72 mm
Lightweight: 700 g
Built-in 5600mAh lithium battery
AC/DC dual-use power support
Continuous working time up to 8 hours
Designed for outdoor inspections, emergency monitoring, and plant-level field operation.
Liquid Analysis Parameter
| Parameter | Specification |
|---|---|
| Test Item | Chemical Oxygen Demand (COD) |
| Analytical Method | HJ/T399-2007 |
| Measuring Ranges | 10–150 mg/L, 20–450 mg/L, 50–1500 mg/L, 500–15000 mg/L |
| Measurement Method | Rapid digestion spectrophotometry |
| Wavelength Selection | Automatic |
| Colorimetric Method | Integrated digestion and colorimetric tube |
| Display | High-definition color LCD touch screen |
| Operating System | Android intelligent system |
| Communication | Type-C, WIFI, Bluetooth |
| Continuous Working Time | 8 hours |
| Battery | 5600mAh rechargeable lithium battery |
| Power | Electronic, AC/DC dual-use |
| Size | 190 × 77 × 72 mm |
| Weight | 700 g |
Instrava OEM/ODM
At Instrava, our instruments are developed with a strong focus on real industrial applications. Each product is designed to operate as a reliable component within measurement, control, and automation systems, rather than as a standalone device.
Our engineering team supports customers during product selection by evaluating process conditions, operating environments, and system requirements, ensuring stable and long-term performance in actual use.
In addition to standard configurations, Instrava offers flexible customization options, including measurement range, materials, output signals, communication interfaces, and installation methods. All custom solutions are engineered to meet industrial standards and application-specific demands.
We also support OEM projects and system integration, providing consistent product design, technical documentation, and long-term supply to ensure smooth integration and reliable operation throughout the project lifecycle.

The instrument follows HJ/T399-2007 methodology, ensuring alignment with regulatory detection logic. While laboratory testing provides centralized analytical control, on-site rapid digestion spectrophotometry significantly reduces response time. For industrial operators, the key advantage is process correction before discharge thresholds are exceeded. The portable system supports compliance pre-verification rather than replacing laboratory confirmation.
Wireless transmission via WIFI or Bluetooth allows real-time data synchronization to a cloud monitoring platform. This enables centralized trend analysis, abnormal discharge tracking, and historical data archiving. For enterprises managing multiple discharge points, this transforms COD testing from isolated measurements into a structured environmental management system.
Traditional COD testing requires multiple manual handling steps, increasing contamination and procedural deviation risk. The integrated digestion-colorimetry system reduces transfer errors, stabilizes optical paths, and improves repeatability—especially critical in field environments where laboratory-level controls are unavailable.
During environmental emergencies, decision speed determines mitigation effectiveness. The portable analyzer provides rapid on-site data without sample transport delays. With up to 8 hours of continuous battery operation, inspectors can conduct multi-point testing in remote or power-limited environments, supporting immediate containment or process adjustment decisions.
The imported cold light source with a service life up to 100,000 hours ensures long-term optical stability. Reduced recalibration frequency and minimal maintenance requirements directly lower lifecycle costs, making the instrument suitable for frequent industrial deployment rather than occasional laboratory use.
Portable systems are particularly valuable in:
Temporary discharge monitoring
Multi-location inspection programs
Environmental enforcement
Process optimization during commissioning
Research institutions and pilot projects
They complement fixed online analyzers by providing verification, mobility, and flexible deployment.
By choosing Instrava, you gain a partner with a deep understanding of industrial applications and the expertise to meet today’s operational challenges.
Our role extends beyond products—we support your success through dependable solutions and long-term commitment.
Innovation at Instrava is guided by real industrial requirements. We continuously refine our technologies to address evolving operational challenges, ensuring practical and reliable performance in demanding environments.
We provide engineering-level customization to match specific process conditions. From measurement range and materials to output signals and installation options, our solutions are configured to fit real applications.
Quality and reliability are fundamental to every Instrava product. Manufactured under strict quality control and thoroughly tested, our instruments deliver accurate, stable, and long-term performance.
Instrava combines global engineering expertise with responsive local support, ensuring our partners benefit from internationally aligned technology and timely regional service.
Our broad portfolio of measurement and control instruments enables us to address a wide range of industrial needs, providing integrated solutions from a single, reliable source.
We work closely with our partners from technical consultation to after-sales support. Our focus is on delivering solutions that create lasting value and support long-term operational success.
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