Product Description:
Wuxi Daoxin Technology’s DX-DO3000 Online Dissolved Oxygen Analyzer
is a professional-grade environmental monitoring instrument,
purpose-built for long-term deployment in natural water bodies such as rivers, lakes, reservoirs, and wetlands. It supports both luminescent (optical) and membrane-based sensing principles, providing flexibility to meet the diverse
demands of field monitoring applications.
The luminescent sensor uses optical fluorescence technology, which requires no membrane or electrolyte and offers a long
service life with minimal maintenance. With a resolution of 0.01 mg/L and accuracy up to ±1% FS, the analyzer delivers highly precise
readings, essential for detecting subtle oxygen fluctuations linked
to ecological health or pollution events.
Its automatic temperature compensation (0–80°C) ensures accurate measurements across varying climates and seasons.
The wide operating temperature range (-10 to 60°C) and corrosion-resistant housing make it ideal for harsh outdoor
deployments, including unattended field stations and buoy-mounted
installations.
The analyzer is compatible with 4-20mA and RS485 (Modbus RTU) communication, allowing for seamless integration into
environmental telemetry platforms, SCADA systems, or
government-managed water quality databases. It supports solar-powered operation when connected to external DC24V sources, making it suitable for
remote and off-grid areas.
Technical Parameters:
| Temperature Compensation Range | 0 ～ 80 ℃ (Automatic Or Manual Compensation) |
| Measurement Accuracy | ±1% FS Or ±0.1 Mg/L |
| Installation | Immersion / Flow-through (Flange Option) |
| Sensor Type | Fluorescence Method: No Membrane, Resistant To Contamination;
Membrane Method: Replaceable Diaphragm (electrolyte Required) |
| Response Time | ≤ 10s (Seconds) |
| Flow Velocity | ≥ 0.2 M/s (flow Required For Membrane Method; Still Water Available
For Fluorescence Method) |
| Measurement Range | 0-20 Mg/L (Multiple Ranges Optional) |
| Resolution | 0.01 Mg/L |
| Operating Temperature | -10 ～ 60 ℃ |
| Measurement Principle | Luminescent Or Polarographic Membrane (Membrane Method) |
Applications:
The DX-DO3000 plays a key role in surface water quality monitoring programs, often led by environmental protection bureaus, research
institutes, or municipal water authorities. It provides continuous
dissolved oxygen data, enabling real-time assessments of water body
health and early warnings for hypoxia, eutrophication, or organic
pollution.
In rivers and streams, the analyzer helps assess oxygen stratification, monitor the
impact of upstream industrial or agricultural discharges, and track
seasonal changes that affect aquatic life. By placing the sensor at
critical cross-sections, users can generate oxygen profiles for
environmental assessment reports.
In lakes and reservoirs, where stratification and thermal layering affect oxygen levels at
various depths, the DX-DO3000 supports vertical profiling through
submersible deployment. It is ideal for tracking oxygen depletion
in bottom waters (hypolimnion), which could lead to fish kills or
harmful algal blooms.
In urban stormwater outfalls, the device monitors DO levels in runoff channels and retention
ponds, helping cities detect illicit discharges and assess
pollution loads. The remote monitoring capabilities allow data collection without sending personnel onsite daily,
improving efficiency and safety.
This analyzer is also used in environmental research and academic field studies, offering long-term, stable measurements needed for ecological
modeling, restoration project evaluation, or habitat conservation
planning. Its flexibility and durability make it a trusted tool for high-frequency, real-world monitoring.
Support and Services:
Wuxi Daoxin Technology offers full technical support for
environmental clients deploying the DX-DO3000 in the field. From sensor selection and calibration to telemetry integration, we ensure your dissolved oxygen monitoring project runs reliably
and delivers actionable data.
We provide waterproof installation accessories, buoy mounting kits,
and floating probe holders for surface deployments. For remote
areas, we assist in designing solar-powered DO monitoring stations, complete with enclosures, batteries, and communication modules.
Our team offers remote configuration assistance, firmware upgrades, and data formatting support for Modbus/SCADA
compatibility. If needed, we can help build dashboards for
government reporting or public-facing transparency platforms.
In addition to field probe maintenance kits and calibration solutions, we also provide on-demand sensor diagnostics, ensuring long-term accuracy even in harsh conditions. For
multi-site deployments, we support bulk setup and remote
synchronization features.
With the DX-DO3000, environmental managers can track real-time
oxygen dynamics in fragile aquatic ecosystems, take proactive
measures against pollution, and fulfill regulatory monitoring
requirements.
