Suzhou Delfino Environmental Technology Co., Ltd.
                                                                                                           
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OPD790 RS485 Optical Dissolved Oxygen Sensor 0-20mg/L Range with 35mm Diameter for Industrial Water Treatment

Price Negotiable
Price: Negotiable
MOQ: 1
Delivery Time: 1-20 work days
Brand: Daruifuno
Product Description
Fluorescence Optical Dissolved Oxygen Sensor Technology
The OPD790 dissolved oxygen sensor utilizes advanced fluorescence quenching technology for precise oxygen measurement. This optical method eliminates the need for traditional membranes and electrolytes, providing superior reliability in industrial water treatment applications.
Key Advantages & Features
  • No Electrolyte or Membrane Required: Eliminates membrane pollution, aging, and breakage issues, reducing maintenance frequency and costs
  • Maintenance-Free Operation: Long-term stability with minimal consumable replacement, ideal for continuous online monitoring
  • Strong Anti-Interference Capability: Unaffected by water flow rates, resistant to oil, suspended matter, and bubbles
  • Fast Response Time: Less than 60 seconds response time for dynamic monitoring applications
  • Low Power Consumption: 0.1W power draw suitable for battery-powered systems and outdoor installations
  • High Precision Measurement: ±0.1mg/L accuracy with excellent repeatability for demanding applications
  • Intelligent Connectivity: RS485 Modbus RTU interface for SCADA system integration with remote calibration capabilities
OPD790 dissolved oxygen sensor showing fluorescence measurement technology
Technical Specifications
ParameterSpecification
ModelOPD790
Measuring TechnologyLuminescence optical measurement
Measuring RangeDissolved oxygen: 0.00-20.00mg/L, Saturation: 0-200%, Temperature: 0-50℃
ResolutionDissolved oxygen: 0.01mg/L, Saturation: 1%, Temperature: 0.1℃
AccuracyDissolved oxygen: ±0.1mg/L, Saturation: ±1%, Temperature: ±0.2℃
Response Time0-100% T90<25s, 100-0% T90<30s
Digital OutputRS485, Modbus RTU
Work Pressure≤3Bar
Work Temperature0-50℃
MaterialBody: PPS, Sensor head: 316L stainless steel
Power SupplyDC 6-12V
Power Consumption0.1W
DimensionsDiameter: 35mm, Length: 250mm
Installation1" NPT thread at both ends
Protection GradeIP68
Cable LengthStandard 5 meters (customizable)
Weight260g
OPD790 sensor technical specifications and installation details
Additional Features
  • Support for handheld devices and in-situ applications
  • Internal storage of calibration data for offline calibration
  • Plug-and-play functionality for quick field deployment
  • Optional cleaning nozzle for underwater maintenance
  • Temperature, salinity, and pressure compensation
Installation & Compatibility
The OPD790 features 1" NPT threads at both ends for universal compatibility with industrial fluid systems. This tapered thread design ensures excellent sealing and leak prevention while supporting multiple installation configurations including insertion, immersion, and pipeline bypass applications.
OPD790 dissolved oxygen sensor installation and connection diagram
Application Areas
  • Industrial sewage and wastewater treatment plants
  • Surface water monitoring in natural environments
  • Aquaculture and fish farming operations
  • Urban sewage treatment facilities
  • Drinking water treatment plants
  • Aquarium and water quality monitoring systems
Documentation
OPD790 sensor installation examples and application scenarios OPD790 sensor in various water treatment applications OPD790 sensor performance characteristics and measurement data

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Suzhou Delfino Environmental Technology Co., Ltd.
Location Room 301, Building 3, No. 25 Datong Road, High-tech Zone, Suzhou City, JIANGSU P.R CHINA
Contact Person Yuki Fu

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