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Turbidity Sensor-OPTU 790

The turbidity value of seawater refers to the density and size of suspended particles in seawater, which include algae, sand, sediment, microorganisms, etc. Monitoring the turbidity value of seawater can help us understand the concentration and type of suspended matter in seawater, thereby judging the water quality and ecological environment of seawater.
The Turbidity Sensor used in seawater need to pay attention to the following aspects:
1. Measuring range: Different turbidity sensors have different measuring ranges, and the appropriate sensor needs to be selected according to actual needs.
2. Precision and accuracy: The precision and accuracy of the turbidity sensor directly affect the reliability of the measurement results, so it is necessary to select a sensor with high precision and high accuracy.
3. Stability and reliability: The seawater environment is complex and changeable, and the turbidity sensor needs to have good stability and reliability, and be able to work stably and maintain accuracy for a long time.
4. Anti-interference ability: There are many interference factors in seawater, such as ocean currents, waves, light, etc. Turbidity sensors need to have good anti-interference ability to accurately measure the concentration of suspended solids in seawater.
5. Maintenance and maintenance: The turbidity sensor needs regular maintenance and maintenance, including cleaning, calibration, replacement of parts, etc., to ensure the long-term stable operation of the sensor.

The measurement range of OPTU790 infrared water turbidity sensor is 0~1000NTU. It adopts the principle of infrared scattering. The digital sensor has RS485 interface and supports Modbus. Internal storage of calibration data, plug and play. This turbidity sensor has a small shape, the outer shell is PPS, and the inner is titanium alloy. If it is used in seawater, it can resist corrosion and the impact of waves. Flat head for easy cleaning and maintenance.

Features
● Compact all-in-one design, the turbidity sensor is convenient to install
● 1″ NPT mounting thread for flexible installation
● Internal storage of calibration data of the turbidity probe
● Support offline calibration, on-site plug and play
● Standard Modbus protocol, support access to standard industrial control system and Turbidity Controller

Specification
Measuring Range pH:0~14pH ORP:-2000~2000mV Temp.:-10~150℃
Resolution pH:0.01pH ORP:1mV Temp.:0.1℃
Temp. Compensation automatic (PT1000/NTC10K) or manual
Accuracy 0.1% FS or pH: ± 0.02pH, ORP: ±2mV, take the larger one
Display Screen 3.2 inch LCD screen
System Language English
Calibration Method pH: 3 points; ORP: 2 ponits
Password Six-digit passcode setting
Relay Output 2 SPST relays,max. load 3A/250VAC
Current Output 0/4~20mA
Protection Grade IP66
Working Temperature 0~60°C
Storage Temperature 20~70°C
Dimension 100*100*120mm
Material Enhanced ABS
Power Supply AC:100~240VAC, 50~60Hz;DC:18~36VDC

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