| Andra Ocean Guardian O2The recorder is a rugged and powerful O-produced based on the Ocean Guard platform.2Recorder.It can be used for O2Concentration measurement.At the same time, the instrument can also be used as a platform to expand and add other measurement parameters such as (CTD, current, turbidity, waves, tides) | ||||
| Features: | |||||
| 1. High resolution, low drift | |||||
| 2. Small maintenance | |||||
| 3. Principles of optical measurement | |||||
| 4. Long-term stability | |||||
| 5. No calibration required for more than one year | |||||
| 6. Measurement interval is optional from 2 seconds to 2 hours | |||||
| 7. SeaGuard Studio Visualization Software | |||||
| 8. Intelligent sensor based on CANbus interface | |||||
| 9. It can be used for both seawater and fresh water | |||||
Dissolved oxygen is the most important measurement parameter in the biochemistry process of water environments and is also commonly used as a tracer for marine research. For hypoxic environments, the monitoring of dissolved oxygen is crucial, such as: | |||||
| 1. Shallow water areas with algae blooms near the shore | 2. Aquaculture | ||||
| 3. Fjords or other areas with less exchange of water | 4. Areas where mines are dumped or waste dredged | ||||
| Andra dissolved oxygen probes are based on the principle of fluorescence quenching measurement of life cycle.It uses platinum porphyrin complex as a fluorescent material and is embedded in a breathable fluorescent film. A black light isolation coating protects the fluorescent material from the fluorescence of sunlight and water particles.The fluorescent film is exposed to ambient water on one side and is installed on the optical window of the measuring chamber on the other side.The life cycle-based fluorescence quenching measurement principle has the following advantages compared to electrochemical sensors: | |||||
| 1. The impact of disturbance is small (no oxygen consumption) | 2. Better long-term stability | ||||
| 3. Less affected by pollution | 4. Less affected by stress | ||||
| 5. No frequent calibration is required to measure the absolute concentration of dissolved oxygen. | 6. The impact of stress is predictable | ||||
| 7. Faster response time | |||||
| Ocean Guardian O2The recorder can be collected through Andra's real-time data acquisition software, and the output parameters can be displayed and processed through SeaGuard Studio software. The sensor is an intelligent sensor, plug-and-play, and can be automatically identified. | |||||
Note:
(1)μM =μmol/l.If you want to getUnited States/l, divided by31.25.
(2) Changes in salinity>1ms/SmartSalinity compensation is required.
(3) Calibration range:0~120%.
(4) Calibration range:0~36°C.
(5) Parameters are subject to change without notice.