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Liquid Analysis
Industrial Dissolved Oxygen Meters
Why Engineering Teams Choose This DO Meter
In wastewater aeration control, aquaculture oxygen management, and environmental compliance monitoring, dissolved oxygen is not just a parameter — it directly impacts process stability, biological efficiency, and operating cost.
Instrava Dissolved Oxygen Meters are engineered to deliver:
✔ 0.01 mg/L high resolution
✔ ≤±0.3 mg/L measurement accuracy
✔ 0–200% saturation measurement
✔ Triple environmental compensation
✔ IP65 field protection
✔ Lightweight portable deployment
This instrument bridges the gap between laboratory precision and field practicality — enabling reliable oxygen monitoring without complex installation or heavy maintenance systems.
For engineering teams seeking stable field verification and procurement teams seeking predictable lifecycle cost, this solution delivers measurable value.
Liquid Analysis Description
Industrial Dissolved Oxygen Meters Application Scenarios
Wastewater Treatment Plants
Aeration tank oxygen optimization
Process efficiency validation
Compliance sampling
Stable DO measurement reduces energy waste from over-aeration while protecting biological treatment stability.
Aquaculture & Aquarium Systems
Fish stock health monitoring
Aeration system adjustment
Seasonal oxygen fluctuation control
High-resolution measurement (0.01 mg/L) supports precise oxygen management in sensitive environments.
Environmental & Water Source Monitoring
River and reservoir inspections
Field sampling operations
Mobile environmental compliance checks
Portable design and lithium battery power allow extended field deployment.
Research & Scientific Units
Multi-parameter monitoring
Electrode current observation
Temperature-linked DO analysis
Supports laboratory validation and academic use.
Industrial Dissolved Oxygen Meters Engineering Advantages
① High-Accuracy Core Performance
DO Range: 0.00–20.00 mg/L
Saturation: 0.0–200.0%
Resolution: 0.01 mg/L
Accuracy: ≤±0.3 mg/L
This level of precision enables confident process adjustment decisions.
② Triple Environmental Compensation
Dissolved oxygen is affected by atmospheric pressure, temperature, and salinity.
This instrument integrates:
Automatic Temperature Compensation (0–40°C)
Manual Atmospheric Pressure Compensation (60–110 kPa)
Manual Salinity Compensation (0–50 g/L)
Result: Reliable measurement stability across seasonal and geographic variations.
③ Fast Response & Intelligent Processing
32-bit microprocessor
Multi-parameter simultaneous measurement
Response time ≤45 seconds
Designed for operational efficiency without prolonged stabilization delays.
④ Industrial Protection & Field Durability
IP65 waterproof and dustproof rating
Lithium battery with charge & protection management
Intelligent backlight control for energy saving
Lightweight: 270 g (without sensor)
Engineered for real outdoor inspection environments.
⑤ Operator-Friendly Interface
Wide-screen LCD display
Operation prompt guidance
Clear numeric visualization
Reduces training time and minimizes operator error.
Liquid Analysis Parameter
Industrial Dissolved Oxygen Meters Technical Specifications
Measurement Range
DO Concentration: 0.00–20.00 mg/L
DO Saturation: 0.0–200.0%
Temperature: 0–60°C (32–140°F)
Resolution
DO Concentration: 0.01 mg/L
Saturation: 0.1%
Temperature: 0.1°C / 0.1°F
Accuracy
DO Concentration: ≤±0.3 mg/L
Saturation: ≤±3.0%
Temperature: ≤±0.3°C
Compensation
Atmospheric Pressure: 60–110 kPa (Manual)
Temperature: Automatic (0–40°C)
Salinity: 0–50 g/L (Manual)
Performance & Structure
Standard Electrode: SD02 (3M)
Response Time: ≤45 s
Protection Level: IP65
Weight: 270 g (without sensor)
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 integrates automatic temperature compensation, manual salinity and atmospheric pressure adjustments, and uses high-precision membrane or fluorescence probes. This triple compensation ensures stable and accurate DO readings in rivers, aquaculture tanks, or industrial effluent environments, even with fluctuating temperature, salinity, and altitude.
The fluorescence probe does not consume oxygen, requires no electrolyte preheating or polarization, and eliminates frequent calibration. This reduces maintenance costs, prevents measurement drift from H₂S, heavy metals, or oil contamination, and delivers faster response times (≤45 seconds), critical for real-time field monitoring.
Yes. Its lightweight design (270 g without sensor), IP65 waterproof/dustproof housing, and wide LCD screen allow easy transport and field use, while high accuracy, data storage, and manual compensation functions meet laboratory-quality monitoring standards.
Rapid response, intuitive prompts, and automatic temperature adjustment reduce sampling time. Engineers can make immediate process control decisions, optimize aeration, prevent over-oxygenation, and enhance biological treatment efficiency or aquaculture health, minimizing operational costs.
Membrane probes require periodic membrane replacement and electrolyte replenishment, while fluorescence probes are virtually maintenance-free. Both are factory-calibrated, with easy one- or two-point calibration routines, minimizing downtime and operational risk.
The device can manually store up to 99 measurement records per session. Combined with large LCD readout and optional data transfer (USB or compatible interfaces with Instrava systems), it facilitates documentation for audits, regulatory reporting, and quality management systems.
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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