Wuxi Daoxin Technology Co., Ltd.
Innovation First, Quality as the Foundation, Integrity as Priority, Service with Sincerity.
Add to Cart
The DX-DO3000 Online Dissolved Oxygen Analyzer from Wuxi Daoxin Technology is a high-performance instrument tailored for continuous, real-time monitoring of DO levels in natural water bodies, environmental protection projects, and industrial water discharge systems. By leveraging luminescent fluorescence sensing technology, it eliminates the need for traditional membranes or electrolyte solutions, reducing ongoing maintenance and increasing stability in long-term deployments.
This analyzer delivers exceptional sensitivity with a measurement resolution of 0.01 mg/L and a response time of less than 10 seconds. It supports dual output interfaces: 4-20mA analog signal for traditional PLC integration and RS485 (Modbus RTU) for modern digital monitoring systems. Built-in automatic temperature compensation ensures accuracy across a wide range of operating conditions (0–80°C), making it ideal for outdoor and seasonal monitoring.
Constructed with a rugged, anti-corrosion stainless steel body, the DX-DO3000 is designed for harsh environments, including polluted rivers, lakes, and industrial outflows. Users can choose between optical fluorescence sensors for low-maintenance needs and membrane-based sensors when traditional electrode behavior is required.
Power options include AC220V or DC24V, ensuring compatibility with fixed stations, solar-powered field nodes, or industrial cabinet systems. Installation types include immersion, flow-through, and flange-connected options to adapt to different water access conditions.
| Temperature Compensation Range | 0 ～ 80 ℃ (Automatic Or Manual Compensation) |
| Measurement Accuracy | ±1% FS Or ±0.1 Mg/L |
| Power Supply | AC 220V ±10%, 50/60Hz Or DC 24V |
| Measurement Range | 0-20 Mg/L (Multiple Ranges Optional) |
| Alarm Function | Hi/Low Alarm / Relay Output |
| Measurement Principle | Luminescent Or Polarographic Membrane (Membrane Method) |
| Installation | Immersion / Flow-through (Flange Option) |
| Sensor Lifespan | Fluorescence Method: ≥ 2 Years (no Membrane Loss); Membrane Method: 6 To 12 Months (requires Regular Maintenance) |
| Sensor Type | Fluorescence Method: No Membrane, Resistant To Contamination; Membrane Method: Replaceable Diaphragm (electrolyte Required) |
| Resolution | 0.01 Mg/L |
The DX-DO3000 plays a vital role in environmental monitoring and compliance reporting, particularly in areas governed by national water quality standards or under the supervision of local environmental bureaus. It enables continuous dissolved oxygen profiling in rivers, lakes, and estuaries, providing real-time insights into the ecological health of freshwater systems.
In industrial parks, especially chemical and food processing zones, the device helps monitor and control dissolved oxygen levels in treated effluents before discharge, ensuring compliance with environmental regulations. Its robust build and anti-fouling capabilities allow it to perform reliably in wastewater with high suspended solids and organic load.
Research institutions and hydrology centers use the DX-DO3000 for long-term water quality data logging, deploying it on buoys or along riverbanks to gather seasonal or real-time datasets for ecological modeling and pollutant source tracing.
In municipal stormwater systems, the analyzer supports smart water management platforms by reporting oxygen levels that correlate with biological activity and potential pollution events, allowing city engineers to respond proactively.
Thanks to its low-maintenance design and digital communication capabilities, it is also suitable for integration into IoT-based water monitoring networks, offering scalable deployment for smart environmental infrastructure.
Wuxi Daoxin Technology offers comprehensive support services to meet the operational demands of field monitoring and ecological research users. From pre-installation planning to post-deployment optimization, our team ensures each DX-DO3000 system performs consistently in its intended environment.
We provide technical consultation, including sensor selection guidance based on expected contamination levels, flow conditions, and installation constraints. Our documentation includes multilingual user manuals, Modbus communication templates, and field calibration workflows tailored to environmental monitoring needs.
For installations in remote or hard-to-access areas, we offer custom wiring solutions, solar power integration advice, and compact enclosure designs. Our team can assist in creating complete dissolved oxygen monitoring stations, complete with telemetry modules and real-time dashboards.
A wide range of spare parts and calibration standards are stocked for both fluorescence and membrane sensors. Additionally, users can opt for remote firmware updates, monthly data validation checks, and performance recalibration contracts.
Whether you're a public environmental agency, a university research group, or an industrial plant complying with discharge permits, Daoxin ensures that your dissolved oxygen data is accurate, reliable, and regulatory-compliant.