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Seametrics’ DO2 Smart Sensor is the next generation in trouble-free oxygen sensing design.

Utilizing fluorescence of a stable, immobilized ruthenium-based film matrix, the sensor provides precision optical transmission and detection to measure oxygen concentration in the fluid outside of the sensor.

Equipped with integrated datalogger and Aqua4Plus software, this sensor provides convenient, high-quality data to the user.
Features
  • Sensor does not require water movement, flow, or frequent cleaning
  • Does not require frequent calibration
  • 1.66″ diameter—fits easily in 2-inch wells
  • RS485 Modbus® interface
  • Measures dissolved oxygen and temperature
  • Over 260,000 records in non-volatile memory
  • Fluorescence sensor technology
  • No membranes, fill solutions, replacement caps, or cartridges required
  • Includes new Aqua4Plus control software for setting up flexible recording sequences, retrieving data, monitoring real-time data, and viewing collected data

Specifications

Probe Diameter

  • 1.66” (4.22 cm)

Tube Material

  • Acetal & 316 stainless steel or titanium

Probe Material

  • Epoxy, polyurethane, and PVC

Wire Seal Material

  • Fluoropolymer and PTFE

Submersible Cable

  • Polyurethane, polyethylene, or ETFE available

Terminating Connector

  • Available

Communication

  • RS-485 Modbus® RTU, SDI-12

Direct Modbus Read Output

  • 32-bit IEEE floating point

Internal Math

  • 32-bit floating point

Operating Temp. Range

  • 0° C to 55° C

Storage Temp. Range

  • -40° C to 80° C

Memory

  • 260,000+ records

Log Types

  • Variable, user-defined, logarithmic, profiled

Programmable Baud Rate

  • 9600, 19200, 38400

Logging Rate

  • 8x/sec maximum

Software

  • Complimentary Aqua4Plus and Aqua4Plus Lite

Networking

  • 32 available addresses per junction w/ batching capabilities (up to 255)

File Formats

  • .csv / .a4d

Measuring Range

  • 0-25 ppm

Accuracy

  • 1 % of Reading or 0.02 ppm — whichever is greater

Sensitivity / Resolution

  • 0.01 ppm below 4.00, 0.1 ppm above 4.0

Stability

  • 0.01 ppm

Repeatability

  • 0.01 ppm

Sensor Drift

  • Less than 1 % per year

Temperature Range

  • 0° C to 55° C

Response Time

  • 95 % in less than 60 seconds

Maximum Pressure

  • 100 psi

  • Dam discharge monitoring aquaculture
  • Leachate monitoring (Landfill)
  • Long-term surface water monitoring
  • Monitoring remediation performance
  • Municipal and industrial water treatment facilities

Documentation

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