Wuxi Daoxin Technology Co., Ltd.
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The DX-DO3000 Online Dissolved Oxygen Meter from Wuxi Daoxin Technology is an advanced instrument designed for accurate, real-time monitoring of dissolved oxygen (DO) levels in a wide variety of industrial and environmental applications. Utilizing state-of-the-art luminescent optical technology, the sensor provides fast and reliable readings without the need for membranes or electrolytes, reducing maintenance frequency significantly.
With a measurement range of 0–20 mg/L and a high resolution of 0.01 mg/L, the DX-DO3000 ensures precision even in low-oxygen environments. Its built-in automatic temperature compensation (ATC) system adjusts readings based on real-time thermal conditions, ensuring consistency across a wide temperature range of 0 to 80°C.
The sensor housing is built to resist corrosion and biofouling, making it suitable for harsh environments such as wastewater and aquaculture systems. Signal outputs include 4-20mA and RS485 with Modbus RTU protocol, supporting seamless integration with modern SCADA and control platforms. Installation options include immersion or flow-through assemblies, with flange mounting available.
| Technical Parameter | Description |
|---|---|
| Installation | Immersion / Flow-through (Flange Option) |
| Temperature Compensation Range | 0 ～ 80 ℃ (Automatic Or Manual Compensation) |
| Sensor Type | Fluorescence Method: No Membrane, Resistant To Contamination; Membrane Method: Replaceable Diaphragm (electrolyte Required) |
| Flow Velocity | ≥ 0.2 M/s (flow Required For Membrane Method; Still Water Available For Fluorescence Method) |
| Measurement Principle | Luminescent Or Polarographic Membrane (Membrane Method) |
| Measurement Accuracy | ±1% FS Or ±0.1 Mg/L |
| Alarm Function | Hi/Low Alarm / Relay Output |
| Sensor Lifespan | Fluorescence Method: ≥ 2 Years (no Membrane Loss); Membrane Method: 6 To 12 Months (requires Regular Maintenance) |
| Resolution | 0.01 Mg/L |
| Measurement Range | 0-20 Mg/L (Multiple Ranges Optional) |
The DX-DO3000 is ideal for critical applications where dissolved oxygen levels directly impact safety, efficiency, and compliance. In municipal wastewater treatment, it plays a crucial role in optimizing the aeration process within biological treatment tanks, helping to reduce energy consumption while maintaining effluent quality.
In aquaculture and fish farming, the device supports DO monitoring to prevent oxygen stress and ensure optimal growth conditions. It is also widely applied in biochemical reactors for pharmaceutical manufacturing, where DO must be precisely maintained to support biological processes.
Additional applications include brewery fermentation, lake and river oxygen profiling, environmental monitoring, and seawater oxygen assessment for marine studies. Thanks to its anti-pollution design and minimal maintenance requirements, the DX-DO3000 performs reliably even in long-term deployments.
Wuxi Daoxin Technology provides full technical and after-sales support for the DX-DO3000. From initial consultation to field installation, our expert team offers comprehensive assistance tailored to your specific monitoring needs.
Users receive detailed manuals, wiring guides, and calibration instructions to ensure proper device setup. Remote and on-site support is available for troubleshooting and maintenance guidance. We also offer calibration and performance verification services using certified standards to maintain accuracy and regulatory compliance.
Customers can access replacement sensor heads, cables, and optional accessories such as automatic cleaning systems and protective housings. With a service-oriented approach and ample inventory, Daoxin ensures prompt response and minimal system downtime.