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Dissolved Oxygen with Modbus/RS485 (4 wire)
Engineered specifically for aquaculture applications, but at home in any Modbus system, the optical dissolved oxygen (ODO) sensor can be used to ensure adequate oxygen levels for your livestock or for improved energy efficiency. With YSI’s ODO RTU (Remote Terminal Unit), you’ll benefit from reduced costs, less maintenance, and better data.
ODO RTU utilizes the most advanced DO technology and can be connected anywhere without the need for special connectors. Additional inputs for barometric pressure and salinity are used to accurately calculate the DO% and mg/L. ODO RTU is also available with built-in conductivity measurement to automatically compensate for salinity.
Key Benefits
Smarter Sensors
Industry-leading optical dissolved oxygen provides higher accuracy readings with less maintenance
Seamless Integration
Modbus communication integrates directly to the PLC or data logger you already have without additional software
Automatic Compensation
An optional built-in conductivity sensor automatically compensates for salinity - removing the guesswork
Less Maintenance, Long Warranty
2-year cable and probe warranty with user-replaceable DO cap
Not for use with the ProSolo or ProODO handheld meters.
Communication | Modbus/RS485 (4 wire) |
Default Baud Rate | 9600 (user programmable) |
Dissolved Oxygen (Optical luminescence) Units | Range 0 to 500%, 0 to 50 mg/L Accuracy 0 to 200%: ±1% of reading or 1% saturation, whichever is greater; 200 to 500%: ±8% of reading; 0 to 20 mg/L: ±0.1 mg/L or 1% of reading, whichever is greater; 20 to 50 mg/L: ±8% of reading Resolution 0.01 mg/L and 0.1 %, or 0.1 mg/L and 1% (auto-adjusted based on range) |
Power | 10 V to 16 V DC, 15 mA max |
Size | 2.46 cm diameter, Cable options for 1, 4, 10, 20, 30, 50, and 100 m lengths |
Temperature (Thermistor) Units | Range –5 to 70°C (-5 to 50°C; DO compensation range for mg/L ) Accuracy ±0.2°C Resolution 0.1°C or 0.1°F (auto-adjusted based on range) |
Warranty | 2 years on cable, probe, and ODO sensor cap |