Modbus RTU Optical Dissolved Oxygen Analyzer with 0-50mg/L Range and RS485 Communication for Industrial Water Monitoring
Professional optical dissolved oxygen analyzer featuring fluorescence technology for continuous monitoring in industrial applications. System includes digital controller with 144×144×120mm IP66 enclosure and OPD70 sensor with 0-20mg/L range. Includes MODBUS RTU communication, dual 4-20mA outputs, and stores 14,000 data points for reliable water quality analysis.
Operating Temperature
0.0~50.0℃
Place of Origin
China
Packaging Details
Carton and PE foam
Product Name
dissolved oxygen analyzer
Material
Enhanced ABS
Model Number
DUC2-DO OPD7
Product Description
Industrial Optical Dissolved Oxygen Analysis System
This advanced dissolved oxygen analyzer system provides reliable, continuous monitoring of oxygen levels in various water applications using fluorescence technology for precise measurements.
Controller Specifications (Model DUC2-DO-H-A)
| Parameter | Specification |
|---|---|
| Display Range | DO: 0-50mg/L, Saturation: 0-400%, Temp: -10-500℃ |
| Resolution | DO: 0.01 mg/L, Saturation: 1%, Temp: 0.1℃ |
| Relay Control | 2 SPST relays, 3A/250VAC max load |
| Analog Output | 2 settable 0/4-20mA outputs, 1000Ω max load |
| Communication | RS485 interface, MODBUS RTU protocol |
| Data Storage | 14,000 historical data points |
| Power Supply | 100-240VAC, ~7W consumption |
| Dimensions | 144×144×120 mm, IP66 protection |
Sensor Specifications (Model OPD70)
| Parameter | Specification |
|---|---|
| Measuring Range | Oxygen: 0.00-20.00 mg/L, Saturation: 0-200% |
| Accuracy | 0.1 mg/L, 1% saturation |
| Response Time | T90 less than 60 seconds |
| Operating Range | 0.0-50.0℃, 0-3Bar pressure |
| Dimensions | 35mm diameter × 260mm length |
| Installation | 1"NPT thread, 100mm insertion depth |
| Protection | IP68 rated, ABS construction |
Controller Features
- 3.2-inch LCD screen with adjustable backlight
- Bilingual Chinese/English interface
- Time and historical data recording (14,000 points)
- Dual SPST programmable relays
- Two 0/4-20mA current outputs
- RS485 MODBUS RTU communication
- IP66 waterproof enclosure
Sensor Advantages
- Fluorescence principle - no oxygen consumption
- Calibration-free operation
- All-in-one compact design
- RS485 MODBUS RTU interface
- Internal calibration data storage
- Automatic temperature compensation
- IP68 protection rating
Application Areas
Wastewater treatment • Surface water monitoring • Aquaculture systems • Industrial effluent • Municipal sewage • Aquarium management
Package Contents
Complete system includes controller unit and OPD70 sensor with 10-meter default cable length. Installation accessories available upon request.
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