Aquaculture

Campbell Scientific systems perform automated monitoring, control, and alarm functions in recirculating, flow-through, and open-pond aquaculture. Our systems measure input from water-quality, flow, and amp sensors, and control aerators, pumps, alarms, and communication devices. These systems can be configured to serve the smallest to the largest aquaculture enterprises.

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Continuous System Monitoring

Our systems monitor and record water quality around the clock providing continuous data that can be used to identify trends and improve production. Almost any sensor can be used, including dissolved oxygen, temperature, pH, conductivity, salinity, turbidity, ORP, ammonia, flow, and level. Sensors can measure and store data at any interval you choose. Through the use of mathematical algorithms, you can store processed data in the units of your choice, simplifying data analysis.

Automated Control

Aerators, pumps, alarms, or other electrical devices can be controlled based on measured conditions or time. For example, aerators can be turned on (day or night) when DO measurements reach a preset value. Together with continuous monitoring, automated control keeps your system operating efficiently even when you are not around.

Communications

The availability of multiple communications options for transmitting data to the central computer also allows systems to be customized to meet exact needs. Options include radio, telephone, cell phone, voice-synthesized phone, satellite, and Ethernet. Systems can be programmed to send alarms or report site conditions by calling out to a computer, phones, radios, and/or pagers.

System Reliability

Our measurement and control units have proven their reliability in thousands of applications in climates worldwide making precise, reliable measurements on a wide variety of sensors. Since rechargeable batteries are used as a power source, systems can continue to measure and store time-stamped data and control on-site generators and other devices during power outages.

Pond Measurements

In ponds, our systems typically monitor dissolved oxygen and temperature. Amps or RPMs can also be monitored on motors to aid in detecting aerator failures. In a pond monitoring system, a CR1000 measurement and control unit (or other unit), housed in an environmental enclosure, measures sensors and controls aerators based on preset times or based on the concentration of dissolved oxygen, as measured by the sensors. Alarms are sent via pager, radio, or phone when oxygen levels reach preset danger levels or when amp or RPM sensors indicate aerator failure.

Recirculating Operations

A CR1000 (or other control unit) monitors dissolved oxygen, pH, temperature, flow, level, and other sensors. Based on those measurements (or preset times) valves, pumps, chemical injectors, aerators, and other devices are controlled to maintain appropriate water quality and quantity for the aquaculture operation. The control unit, its power supply, and communication devices are housed in an enclosure. Data is transmitted to the central computer for analysis. Status of the recirculating system can be monitored from the central computer.