“Measure the lifeblood of aquatic ecosystems with precision and accuracy.”

Understanding the Importance of dissolved oxygen meter in Water Quality Monitoring

Water quality monitoring is a crucial aspect of environmental management, as it helps to ensure the safety and health of aquatic ecosystems. One key parameter that is often measured in water quality monitoring is dissolved oxygen. Dissolved oxygen is essential for the survival of aquatic organisms, as it is necessary for respiration. Monitoring the levels of dissolved oxygen in water bodies is important to assess the health of the ecosystem and to identify potential sources of pollution.

One of the tools used to measure dissolved oxygen levels in water is a dissolved oxygen meter. A dissolved oxygen meter is a device that measures the amount of oxygen dissolved in water, typically expressed in milligrams per liter (mg/L) or as a percentage of saturation. These meters are commonly used in environmental monitoring, aquaculture, and wastewater treatment plants.

dissolved oxygen meters work by using a sensor that detects the presence of oxygen in water. The sensor typically consists of a membrane that allows oxygen to diffuse through it and come into contact with an electrode. The electrode then generates a signal that is proportional to the concentration of dissolved oxygen in the water. This signal is then converted into a digital readout that can be easily interpreted by the user.

There are several types of dissolved oxygen meters available on the market, including optical, polarographic, and galvanic sensors. Optical sensors use luminescent technology to measure oxygen levels, while polarographic sensors rely on a chemical reaction to generate an electrical signal. Galvanic sensors, on the other hand, use a chemical reaction to produce a current that is proportional to the oxygen concentration.

One of the key advantages of using a dissolved oxygen meter is its ability to provide real-time data on oxygen levels in water. This allows for immediate action to be taken if oxygen levels are found to be too low, which could indicate poor water quality or the presence of pollutants. By monitoring dissolved oxygen levels regularly, environmental managers can track changes in water quality over time and identify trends that may require intervention.

model	pH/ORP-5500 series pH/ORP online transmitting controller
Measurement range	pH	0.00~14.00
	ORP	-2000mV~2000mV
	Temp.	( 0.0~50.0)℃  (temperature compensation component:NTC10K)
Resolution	pH	0.01
	ORP	1mV
	Temp.	0.1℃
accuracy	pH	0.1
	ORP	±5mV（electronic unit）
	Temp.	±0.5℃
Approximate input impedance	3×1011Ω
Buffer solution	pH value: 10.00；9.18；7.00；6.86；4.01；4.00
Temp. compensation range	(0~50)℃（with 25℃ as standard）Manual and automatic temperature compensation
(4~20)mA	characteristics	Isolated,fully adjustable,reverible,instrument/transmitter for selection
	Loop resistance	500Ω（Max），DC 24V
	accuracy	±0.1mA
Control contact	Electrical contacts	Double relay SPST-NO,return model
	Loop capacity	AC 220V/AC 110V 2A(Max)；DC 24V 2A(Max)
Power consumption	＜3W
Working environment	temperature	(0~50)℃
	humidity	≤85％RH(none condensation)
Storage environment	Temp.(-20-60) ℃;relative humidity:≤85%RH(none condensation
Outline dimension	96mm×96mm×105mm（H×W×D）
Hole dimension	91mm×91mm(H×W)
installation	Panel mounted,fast installation

In addition to monitoring water quality, dissolved oxygen meters are also used in aquaculture to ensure that fish and other aquatic organisms have enough oxygen to survive. In fish farms, oxygen levels can fluctuate due to factors such as temperature, stocking density, and feed input. By using a dissolved oxygen meter, aquaculturists can adjust oxygen levels as needed to prevent stress or mortality in their fish populations.

Wastewater treatment plants also rely on dissolved oxygen meters to monitor the efficiency of their treatment processes. By measuring oxygen levels in wastewater, operators can determine if enough oxygen is present for aerobic bacteria to break down organic matter. If oxygen levels are too low, it can indicate a problem with the treatment system that needs to be addressed.

Model	CL-810/9500 Residual Chlorine Controller
Range	FAC/HOCL:0-10 mg/L, ATC TEMP:0-50℃
Accuracy	FAC/HOCL:0.1 mg/L, ATC TEMP:0.1℃
Oper. Temp.	0～50℃
Sensor	Constant Pressure Residual Chlorine Sensor
Waterproof Rate	IP65
Communication	Optional RS485
Output	4-20mA output; High/Low limit double relay control
Power	CL-810:AC 220V±10% 50/60Hz or AC 110V±10% 50/60Hz or DC24V/0.5A
	CL-9500:AC 85V-265V±10% 50/60Hz
Working Environment	Ambient temperature:0～50℃;
	Relative humidity≤85%
Dimensions	CL-810:96×96×100mm(H×W×L)
	CL-9500:96×96×132mm(H×W×L)
Hole Size	92×92mm(H×W)
Installation Mode	Embedded

In conclusion, dissolved oxygen meters play a vital role in water quality monitoring by providing accurate and timely data on oxygen levels in water bodies. By using these meters, environmental managers, aquaculturists, and wastewater treatment plant operators can ensure the health and sustainability of aquatic ecosystems. Monitoring dissolved oxygen levels is essential for identifying pollution sources, assessing water quality, and maintaining the well-being of aquatic organisms.