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Understanding the Importance of Dissolved Oxygen Meter Specifications in Water Quality Monitoring
Understanding the Importance of Dissolved Oxygen Meter Specifications in Water Quality Monitoring
In the realm of water quality monitoring, the measurement of dissolved oxygen is a critical parameter. Dissolved oxygen refers to the amount of oxygen that is present in water, and it plays a vital role in the survival of aquatic organisms and the overall health of aquatic ecosystems. To accurately measure dissolved oxygen Levels, specialized tools known as dissolved oxygen meters are utilized. These meters come with specific specifications that are crucial in ensuring accurate and reliable measurements.
| ROS-360 Water Treatment RO Programmer Controller | ||
| Model | ROS-360 Single Stage | ROS-360 Double Stage |
| Measuring range | Source water0~2000uS/cm | Source water0~2000uS/cm |
| \\u3000 | First level effluent 0~1000uS/cm | First level effluent 0~1000uS/cm |
| \\u3000 | secondary effluent 0~100uS/cm | secondary effluent 0~100uS/cm |
| Pressure sensor(optional) | Membrane pre/post pressure | Primary/ secondary membrane front/rear pressure |
| Flow Sensor(optional) | 2 channels (Inlet/outlet flow rate) | 3 channels (source water, primary flow,secondary flow) |
| IO input | 1.Raw water low pressure | 1.Raw water low pressure |
| \\u3000 | 2.Primary booster pump inlet low pressure | 2.Primary booster pump inlet low pressure |
| \\u3000 | 3.Primary booster pump outlet high pressure | 3.Primary booster pump outlet high pressure |
| \\u3000 | 4.High liquid level of Level 1 tank | 4.High liquid level of Level 1 tank |
| \\u3000 | 5.Low liquid level of Level 1 tank | 5.Low liquid level of Level 1 tank |
| \\u3000 | 6.Preprocessing signal\\u00a0 | 6.2nd booster pump outlet high pressure |
| \\u3000 | \\u3000 | 7.High liquid level of Level 2 tank |
| \\u3000 | \\u3000 | 8.Preprocessing signal |
| Relay output (passive) | 1.Water inlet valve | 1.Water inlet valve |
| \\u3000 | 2.Source water pump | 2.Source water pump |
| \\u3000 | 3.Booster pump | 3.Primary booster pump |
| \\u3000 | 4.Flush valve | 4.Primary flush valve |
| \\u3000 | 5.Water over standard discharge valve | 5.Primary water over standard discharge valve |
| \\u3000 | 6.Alarm output node | 6.Secondary booster pump |
| \\u3000 | 7.Manual standby pump | 7.Secondary flush valve |
| \\u3000 | \\u3000 | 8.Secondary water over standard discharge valve |
| \\u3000 | \\u3000 | 9.Alarm output node |
| \\u3000 | \\u3000 | 10.Manual standby pump |
| The main function | 1.Correction of electrode constant | 1.Correction of electrode constant |
| \\u3000 | 2.TDS alarm setting | 2.TDS alarm setting |
| \\u3000 | 3.All working mode time can be set | 3.All working mode time can be set |
| \\u3000 | 4.High and low pressure flushing mode setting | 4.High and low pressure flushing mode setting |
| \\u3000 | 5.Manual/automatic can be chosen when boot up | 5.Manual/automatic can be chosen when boot up |
| \\u3000 | 6.Manual debugging mode | 6.Manual debugging mode |
| \\u3000 | 7.Spare parts time management | 7.Spare parts time management |
| Expansion interface | 1.Reserved relay output | 1.Reserved relay output |
| \\u3000 | 2.RS485 communication | 2.RS485 communication |
| Power supply | DC24V\\u00b110% | DC24V\\u00b110% |
| Relative humidity | \\u226685% | \\u226485% |
| Environment temperature | 0~50\\u2103 | 0~50\\u2103 |
| Touch screen size | Touch screen size: 7 inches 203*149*48mm (Hx Wx D) | Touch screen size: 7 inches 203*149*48mm (Hx Wx D) |
| Hole Size | 190x136mm(HxW) | 190x136mm(HxW) |
| Installation | Embedded | Embedded |
One of the key specifications to consider when selecting a dissolved oxygen meter is the measurement range. This specification refers to the minimum and maximum levels of dissolved oxygen that the meter can accurately measure. It is important to choose a meter with a measurement range that aligns with the expected dissolved oxygen levels in the water bodies being monitored. Selecting a meter with a wider measurement range provides greater flexibility and ensures that it can accommodate varying oxygen levels in different aquatic environments.
Accuracy and precision are also essential specifications to evaluate when choosing a dissolved oxygen meter. The accuracy of a meter indicates how close its measurements are to the true value of dissolved oxygen, while precision refers to the meter’s ability to consistently produce similar results when measuring the same sample multiple times. High accuracy and precision are crucial in obtaining reliable data for water quality assessment and research purposes. Therefore, it is imperative to select a meter that offers both high accuracy and precision to ensure the integrity of the collected data.
Another important consideration is the response time of the dissolved oxygen meter. The response time signifies the duration it takes for the meter to provide a stable reading after being submerged in water. A faster response time is advantageous, especially in dynamic aquatic environments where dissolved oxygen levels may fluctuate rapidly. A meter with a quick response time enables real-time monitoring and facilitates the detection of sudden changes in oxygen levels, which is crucial for identifying potential environmental stressors or pollution events.
The design and build quality of the dissolved oxygen meter are also significant specifications to take into account. A rugged and durable construction is essential, particularly for field applications where the meter may be exposed to harsh environmental conditions. Additionally, the ease of use and maintenance of the meter should be considered to ensure practicality and efficiency during field measurements.
Calibration and temperature compensation capabilities are further specifications that warrant attention. Calibration is the process of adjusting the meter to ensure its measurements align with a known standard, while temperature compensation accounts for the influence of temperature on dissolved oxygen levels. Meters with user-friendly calibration procedures and reliable
