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Liquid Analysis
Portable Dissolved Oxygen Meter – Microgram Level & Laboratory Analyzer
The Portable Dissolved Oxygen Meter is a high-performance handheld analyzer engineered for accurate, rapid, and reliable measurement of dissolved oxygen in water. Equipped with high-precision electrodes, fast-response measurement, and advanced 24-bit A/D signal processing, it ensures precise readings even in challenging field environments.
Designed for continuous field operation, this meter supports up to 8 hours of uninterrupted measurement and stores data securely for over 10 years, allowing engineers and operators to make timely, confident decisions on water quality control. Its compact, portable design with intuitive Chinese/English LCD menu interface makes it ideal for both laboratory and on-site monitoring.
Key Highlights:
High-precision DO electrode with fast response and thermal stability
Advanced microcontroller technology, low power consumption
Data circular storage with automatic overflow clearance, 10+ years retention
Continuous operation up to 8 hours per charge
Compact, ergonomic design for field portability
Liquid Analysis Description
Portable dissolved oxygen analyzer (microgram level)-Applications & Industry Use
The Portable Dissolved Oxygen Meter is engineered for professional water quality monitoring across diverse industries and field conditions. It is ideal for:
Environmental monitoring & water resource management – continuous tracking of dissolved oxygen in rivers, lakes, reservoirs, and surface water.
Aquaculture & fisheries – precise DO measurement ensures optimal oxygen levels for fish, shrimp, and other aquatic species, preventing stress and enhancing growth rates.
Wastewater & industrial effluents – suitable for municipal sewage, chemical, and food processing plants to verify compliance with environmental discharge regulations.
Laboratory water analysis – supports accurate testing of tap water, distilled water, and research samples in field or laboratory setups.
Field emergency monitoring – lightweight and portable design allows engineers, environmental specialists, and field technicians to perform rapid on-site DO measurements.
Multi-operator utility – suitable for water treatment plant operators, aquaculture engineers, and R&D personnel requiring reliable, repeatable measurements in both routine and critical operations.
Portable dissolved oxygen analyzer (microgram level)-Engineering Advantages
The Portable Dissolved Oxygen Meter combines cutting-edge sensor technology with robust field-ready engineering to maximize measurement reliability and operational efficiency:
High-precision optical/membrane electrodes – rapid response (T90 < 20s), stable readings, and high-temperature tolerance ensure accurate DO measurements across variable water samples.
Advanced circuit integration – SMT patch technology and all-in-one design improve durability, reduce noise interference, and lower maintenance requirements.
Smart data management – automatic data circular storage prevents overflow, with over 10 years of data retention, enabling engineers to track long-term water quality trends and perform regulatory reporting effortlessly.
Low power consumption & extended field use – rechargeable battery provides up to 8 hours continuous operation, supporting field technicians and aquaculture engineers in long-term measurements without interruptions.
User-centric interface – Chinese/English menu interface, large LCD screen, and simple operation reduce training requirements for operators of varying skill levels.
Environmental resilience – IP65 protection grade, operational temperature range 5–45°C, relative humidity ≤85% (non-condensing), ensures stable performance in outdoor and industrial environments.
Multi-compensation functionality – supports temperature, salinity, and air pressure compensation, enhancing precision in diverse water conditions for research, aquaculture, and industrial monitoring.
Compact, ergonomic design – lightweight (2.3kg) and portable, suitable for field deployment by environmental engineers, lab technicians, and operational managers.
Liquid Analysis Parameter
Portable dissolved oxygen analyzer (microgram level)-Technical Specifications
| Parameter | Specification |
|---|---|
| Display | 128×64 dot-matrix LCD, Chinese/English |
| Measurement Range | 0.00–100 μg/L, 100–1000 μg/L, 1.0–20.00 mg/L (auto-switching) |
| Resolution | 0.01 μg/L (0–100 μg/L), 0.1 μg/L (100–1000 μg/L), 0.01 mg/L (1.0–20.00 mg/L) |
| Repeatability | ≤1% |
| Response Time | T90 < 20 s (25°C) |
| Temperature Compensation | 0–60°C |
| Water Sample Temp | 5–60°C |
| Sample Flow Rate | 400–800 mL/min |
| Environmental Temp / Humidity | 5–45°C / ≤85% RH (non-condensing) |
| Sample Pressure | <0.3 MPa |
| Power Supply | AC220V ±10%, 50Hz ±10% |
| Power Consumption | ≤0.5 W |
| Dimensions | 163 × 170 × 270 mm |
| Weight | 2.3 kg |
Instrava OEM/ODM
Instrava Engineering & Customization Support
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 meter features high-precision electrodes, 24-bit A/D signal acquisition, and fast-response T90 < 20s, combined with automatic temperature compensation. It maintains reliable readings across varying water temperatures, flow rates, and field conditions.
Yes. The integrated SMT circuit design and low-maintenance electrode allow continuous operation up to 8 hours per charge, with automatic data circular storage, ensuring over 10 years of data retention without calibration or maintenance interruptions.
The meter is engineered for surface water, rivers, lakes, reservoirs, aquaculture ponds, industrial effluents, and municipal wastewater, supporting both laboratory analysis and on-site field monitoring.
The meter automatically stores measurement data, clears overflow entries, and maintains historical records. Combined with a large LCD screen and bilingual menu interface, it enables engineers to retrieve, review, and report data quickly for regulatory or operational decisions.
The portable DO meter is built with robust, corrosion-resistant materials, an ergonomic compact design, and supports operation in 5–45°C and ≤85% RH. Its design reduces environmental sensitivity, minimizing downtime and increasing operational reliability.
With instant readings, rapid response, auto temperature compensation, and long-term data storage, engineers can make immediate, informed decisions for aquaculture optimization, environmental compliance, or wastewater treatment processes, significantly enhancing efficiency and control.
Why Choose Instrava
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.
Engineering-Driven Innovation
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.
Application-Specific Customization
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.
Proven Quality and Reliability
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.
Global Capability with Local Support
Instrava combines global engineering expertise with responsive local support, ensuring our partners benefit from internationally aligned technology and timely regional service.
Comprehensive Product Portfolio
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.
Partner-Oriented Engineering Support
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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