DX-DO3000 Online Do Meter For Continuous DO Monitoring In Industrial Wastewater Treatment

The DX-DO3000 Online Dissolved Oxygen Meter from Wuxi Daoxin Technology Co., Ltd. is specifically designed for continuous DO monitoring in industrial wastewater treatment applications. Built with rugged materials and advanced sensing technology, it ensures high-accuracy oxygen measurements in chemically aggressive and high-solid content environments.

The device supports two sensing principles: a fluorescent optical probe, which offers long-term stability without requiring membrane or electrolyte maintenance, and a classic membrane sensor with a replaceable diaphragm for cost-effective operations in stable process conditions. Both options are optimized for accurate readings under challenging industrial conditions.

With a detection range of 0 -20 mg/L, a resolution of 0.01 mg/L, and an accuracy of ± 1% FS or ±0.1 mg/L, the DX-DO3000 ensures dependable feedback for aeration control systems and compliance reporting. Its response time is ≤10 seconds, making it suitable for dynamic load fluctuation environments.

The device comes standard with automatic temperature compensation (0 -80°C), IP-rated enclosure for field conditions, and dual communication outputs: 4-20mA analog and RS485 Modbus RTU digital, ensuring seamless integration with PLCs, DCS, or SCADA systems.

• Measurement Accuracy: ±1% FS Or ±0.1 Mg/L
• Response Time: ≤ 10s (Seconds)
• Sensor Lifespan: Fluorescence Method: ≥ 2 Years (no Membrane Loss); Membrane Method: 6 To 12 Months (requires Regular Maintenance)
• Temperature Compensation Range: 0 ～ 80 ℃ (Automatic Or Manual Compensation)
• Signal Output: 4-20mA, RS485 (Modbus RTU)
• Measurement Principle: Luminescent Or Polarographic Membrane (Membrane Method)
• Flow Velocity: ≥ 0.2 M/s (flow Required For Membrane Method; Still Water Available For Fluorescence Method)
• Installation: Immersion / Flow-through (Flange Option)
• Measurement Range: 0-20 Mg/L (Multiple Ranges Optional)
• Sensor Type: Fluorescence Method: No Membrane, Resistant To Contamination; Membrane Method: Replaceable Diaphragm (electrolyte Required)

In industrial wastewater treatment plants, particularly in chemical, textile, electroplating, paper, and food processing industries, accurate dissolved oxygen monitoring is essential for aerobic digestion, biological oxidation, and activated sludge control.

Wuxi Daoxin Technology offers a full range of services to support industrial users, from project consultation to after-sales technical maintenance.