Temperature Compensation Range | 0 ~ 80 ℃ (Automatic Or Manual Compensation) |
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Resolution | 0.01 Mg/L |
Flow Velocity | ≥ 0.2 M/s (flow Required For Membrane Method; Still Water Available For Fluorescence Method) |
Signal Output | 4-20mA, RS485 (Modbus RTU) |
Power Supply | AC 220V ±10%, 50/60Hz Or DC 24V |
Response Time | ≤ 10s (Seconds) |
Operating Temperature | -10 ~ 60 ℃ |
Alarm Function | Hi/Low Alarm / Relay Output |
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.
Installation | Immersion / Flow-through (Flange Option) |
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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:
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: