Advantages of Using ABB Optical dissolved oxygen sensor in Water Quality Monitoring

Water quality monitoring is a crucial aspect of ensuring the safety and sustainability of our water resources. One key parameter that is often monitored is dissolved oxygen levels, as it is a critical indicator of the health of aquatic ecosystems. Traditionally, dissolved oxygen levels have been measured using electrochemical sensors, which can be prone to drift and require frequent calibration. However, ABB offers an innovative solution with their optical dissolved oxygen sensor.

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
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

The ABB optical dissolved oxygen sensor utilizes luminescent technology to measure dissolved oxygen levels in water. This technology offers several advantages over traditional electrochemical sensors. One of the main advantages is its stability and reliability. The optical sensor is not affected by fouling or drift, which can be common issues with electrochemical sensors. This means that the ABB sensor provides accurate and consistent measurements over time, reducing the need for frequent calibration and maintenance.

In addition to its stability, the ABB optical dissolved oxygen sensor also offers a fast response time. This means that changes in dissolved oxygen levels can be detected quickly, allowing for rapid adjustments to be made if necessary. This is particularly important in dynamic environments, such as rivers or lakes, where dissolved oxygen levels can fluctuate rapidly.

Another advantage of the ABB optical dissolved oxygen sensor is its low maintenance requirements. The sensor is designed to be self-cleaning, reducing the need for manual cleaning and maintenance. This not only saves time and effort but also ensures that the sensor remains in optimal working condition for longer periods of time.

Furthermore, the ABB optical dissolved oxygen sensor is highly accurate, providing precise measurements of dissolved oxygen levels in water. This accuracy is essential for ensuring the reliability of water quality data and making informed decisions about water resource management.

The ABB optical dissolved oxygen sensor is also easy to install and operate. The sensor can be easily integrated into existing monitoring systems, making it a cost-effective solution for water quality monitoring. Additionally, the sensor is user-friendly, with a simple interface that allows for easy calibration and configuration.

Model pH/ORP-1800 pH/orp meter
Range 0-14 pH; -1600 – +1600mV
Accuracy ±0.1pH; ±2mV
Temp. Comp. Manual/Automatic temperature compensation; No Comp.
Oper. Temp. Normal 0~50℃; High temp 0~100℃
Sensor pH double/triple sensor; ORP sensor
Display 128*64 LCD Screen
Communication 4-20mA output/RS485
Output High/Low limit dual relay control
Power AC 220V±10% 50/60Hz or AC 110V±10% 50/60Hz or DC24V/0.5A
Working Environment Ambient temperature:0~50℃
Relative humidity≤85%
Dimensions 96×96×100mm(H×W×L)
Hole Size 92×92mm(H×W)
Installation Mode Embedded

Overall, the ABB optical dissolved oxygen sensor offers a range of advantages for water quality monitoring. Its stability, reliability, fast response time, low maintenance requirements, accuracy, and ease of use make it an ideal choice for monitoring dissolved oxygen levels in water. By utilizing this innovative technology, water resource managers can ensure the health and sustainability of aquatic ecosystems for future generations.


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