Table of Contents
Importance of Dissolved Oxygen in Water Ecosystems
Dissolved oxygen is a critical component of water ecosystems, playing a vital role in supporting aquatic life. It is a measure of the amount of oxygen gas that is dissolved in water, typically expressed in milligrams per liter (mg/L) or parts per million (ppm). This measurement is crucial for understanding the health of aquatic environments and the organisms that inhabit them.
One of the primary sources of dissolved oxygen in water is through the process of photosynthesis, where aquatic plants and algae produce oxygen as a byproduct of converting sunlight into energy. This oxygen is then dissolved into the water, providing a vital source of oxygen for aquatic organisms such as Fish, insects, and other invertebrates. Without sufficient Levels of dissolved oxygen, these organisms can suffocate and die, leading to a decline in biodiversity and overall ecosystem health.
| Instrument model | FET-8920 | |
| Measurement range | Instantaneous flow | (0~2000)m3/h |
| Accumulative flow | (0~99999999)m3 | |
| Flow rate | (0.5~5)m/s | |
| Resolution | 0.001m3/h | |
| Accuracy level | Less than 2.5% RS or 0.025m/s.whichever is the largest | |
| Conductivity | >20\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\μS/cm | |
| (4~20)mA output | Number of channels | Single channel |
| Technical features | Isolated,reversible,adjustable, meter/transmission\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ dual mode | |
| Loop resistance | 400\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\Ω\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\（Max\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\）, DC 24V | |
| Transmission accuracy | \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\±0.1mA | |
| Control output | Number of channels | Single channel |
| Electrical contact | Semiconductor photoelectric relay | |
| Load capacity | 50mA\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\（Max\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\）, DC 30V | |
| Control mode | Instantaneous amount upper/lower limit alarm | |
| Digital output | RS485(MODBUS protocol ),Impulse output1KHz | |
| Working power | Power supply | DC 9~28V |
| source | Power Consumption | \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\≤3.0W |
| \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ | Diameter | DN40~DN300(can be customized) |
| Working Environment | Temperature:(0~50)\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\℃; Relative humidity:\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\≤85%RH(none condensation) | |
| Storage environment | Temperature:(-20~60)\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\℃; Relative humidity:\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\≤85%RH(none condensation) | |
| Protection grade | IP65 | |
| Installation method | Insertion\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ pipeline\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ installation | |
In addition to photosynthesis, the level of dissolved oxygen in water is also influenced by factors such as temperature, salinity, and the presence of pollutants. Warmer water temperatures can decrease the solubility of oxygen in water, leading to lower levels of dissolved oxygen. High levels of salinity can also reduce the amount of oxygen that can be dissolved in water. Pollutants such as fertilizers and sewage can Lead to an increase in organic matter in water, which can deplete oxygen levels as it decomposes.
Monitoring dissolved oxygen levels in water is essential for assessing the health of aquatic ecosystems and identifying potential sources of pollution. Low levels of dissolved oxygen can indicate poor water quality and the presence of pollutants that may be harmful to aquatic life. By regularly measuring dissolved oxygen levels, scientists and environmental regulators can track changes in water quality over time and take action to protect and restore aquatic habitats.
In addition to its importance for aquatic organisms, dissolved oxygen also plays a crucial role in nutrient Cycling within water ecosystems. Oxygen is necessary for the decomposition of organic matter by bacteria and other microorganisms, which helps to recycle nutrients back into the ecosystem. Without sufficient levels of dissolved oxygen, this process can be disrupted, leading to an accumulation of organic matter and a decrease in water quality.
Overall, dissolved oxygen is a key indicator of the health and vitality of water ecosystems. By monitoring and maintaining adequate levels of dissolved oxygen, we can help to ensure the survival of aquatic organisms and the overall health of our waterways. Protecting and preserving water quality is essential for the well-being of both humans and the diverse array of species that rely on healthy aquatic habitats. Through continued research and conservation efforts, we can work towards a sustainable future where water ecosystems thrive and support a rich diversity of life.
