Seametrics DO2 Dissolved Oxygen Sensor with Integrated Datalogging

Features :

• Measures and records dissolved oxygen and temperature internally
• Modbus® RTU (RS485)
• 260,000+ record non-volatile memory — no data loss in the event of a power failure
• Programmable warm-up time
• The sensor does not require water movement, flow, or frequent cleaning
• Does not require frequent calibration
• 1.66″ diameter—fits easily in 2-inch wells
• Measures dissolved oxygen and temperature
• 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

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

Utilizing the 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.

APPLICATIONS :

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

Specification :

General :

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	RS485 Modbus® RTU
Direct Modbus Read Output	32-bit IEEE floating-point
Internal Math	32-bit floating-point
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. Range¹	-40° C to 80° C

Logging :

Memory	260,000+ records
Log Types	Variable, user-defined, logarithmic, and 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

Power :

•  External Power
•  Pack Required 9–16 Vdc

Seametrics Power Pack is described below. Other power options are available.
Contact Seametrics for details

Sensor :

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

1 Storage without batterie

NOTE: Specification can change,
please contact us to for more info

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