SentrOxy aDO series
Optical DO sensors for water quality management and aquaculture applications. | ![](F985261E10EC87EAC125883700696FBB/$File/SentrOXY aDO-31_100px.jpg) |
You expect | We offer |
High reliability and availability | Smart autonomous systems |
| Optical sensor technologies |
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Confidence that everything works | Comprehensive self-monitoring |
| Sentro.io - Status information in the field |
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Simple but safe control | Pre-parameterizable control sets and operation modes |
| Sentro.io – Set /Mode selection and activation in the field |
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Lowest maintenance costs | Sensor adjustment in < 2 minutes |
| Replacement of sensitive disposable cap in < 1 minute |
| For maintenance no disconnect from the field installation needed |
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Flexible to integrate into your system | RS485 with Modbus * 2x 0/4-20mA * Actor I/Os |
| Ready for Internet of Things (IoT) platforms |
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Safe, easy and fast installation | Install with factory settings first, then configure the whole device using the Sentro.io interface |
| Installations have never been easier. |
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Application areas | |
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Aquaculture Industry | Hatcheries |
| On-growing facilities |
| Live fish transportation |
| Marieculture |
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Waste water treatment plants | activated sludge |
| effluent control |
| influent control |
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Drinking water systems | status monitoring |
| oxygen enrichment |
| corrosion protection |
| waterworks sludge |
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Environmental monitoring | Shallow coastal areas with significant algal blooms |
| Fjords and other areas with limited exchange of water |
| Monitoring of mine or dredging waste |
| Water quality monitoring in rivers, lakes, surface and ground water |
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Key Benefits:
- SentrOxy aDO sensors use optical technology instead of an electrochemical method to reports real-time values of oxygen and temperature conditions.
- SentrOxy aDO sensors are the world's first smart DO sensors having built-in control options tfor direct control, e.g. solenoid valves, pumps, alarm systems or feeders.
- These sensors feature a patented system with two separate measurement channels for real-time referencing for more measurement safety.
- Sentro.io is our unique radio-controlled interface for wireless, two-way tag-sensor communications to control, calibrate or monitor the operation and health status of the sensor. Time- consuming uninstallation for maintenance and adjustment purpose is a thing of the past.
- A standard function of our smart SentrOXY sensors is the constant monitoring of the overall health status of the sensor and its sensing element.
- The solid sensitive element is placed in a robust cap.
- Wireless identifications and pre-loaded calibration coefficients simplify replacement.
- No need to replace fragile oxygen membranes or refill an electrolyt solution fminimize maintenance effort and cost of ownership.
- Long term stability reduce calibration task and reduce the labor costs.
- No corrosion of sensor in high saline environments by using inert POM.
- These sensors are insensitive to common interference that degrade classical membrane-based sensors. No oxygen consumption, no cross sensitivity to chloride, ammonium, hydrogen sulphide, carbon dioxide, and other.
- Flexible and robust communication with the smart sensors via digital RS485 bus using Modbus RTU protocol. Optional interfaces, such as two configurable and adjustable 0-20mA/4-20mA interfaces, or digital input/output interfaces for direct control of actuators, such as solenoid valves, complete the interface variety.
- Additional transmitters are not required. This saves the budget.
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SentrOXY aDO-series | |
Technology | Optical oxygen sensor based on fluorescence quenching |
Power supply | +12 - 36VDC@max. 2VA |
Measurement range | DO : 0.01 to 20mg/L / 0.1 to 200%air sat Temperature: -5 to 50°C |
Guaranty | probe: 2 years cap: 2 years in typical settings |
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SentrOXY aDO-31 | |
| Communication via RS485-Modbus RTU |
| All-purpose device with cable |
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SentrOXY aDO-32 | |
| Communication via RS485-Modbus RTU |
| Two freely configurable 0 – 20 mA /4 – 20 mA output channels (adjustable, watchdog) |
| All-purpose device with cable |
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SentrOXY aDO-60 | |
| Communication via RS485-Modbus RTU |
| Two freely configurable 0 – 20 mA /4 – 20 mA output channels (adjustable, watchdog) |
| One separately configurable digital I/O interface |
| All-purpose device with cable or MCBH8MTI SubConn® underwater connector |
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SentrOXY aDO-61 | |
| Analog 0 – 70 mV / 0 – 2.5 V output (adjustable, watchdog) |
| Additional built-in NTC-temperature sensor |
| Communication via RS485-Modbus RTU |
| All-purpose device with cable |