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Digital Dissolved Oxygen Sensor for Wastewater
Digital Dissolved Oxygen Sensor for Wastewater
Digital Dissolved Oxygen Sensor for Wastewater

Digital Dissolved Oxygen Sensor for Wastewater

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    Model No.OPD790

    BrandDaruifuno

    CertificationISO9001

    PrincipleFluorescence

    Digital OutputRS485 Modbus

    Measuring Range0~20mg/L

    Working Pressure0~3bar

    Working Temperature0~50℃

    Support CustomizationOem

    Place Of OriginChina

    CompensationTemp, salinity, pressure

    Description
    Product Description

    The digital Dissolved Oxygen Sensor is designed based on the principle of quenching excited fluorescence by specific substances in physics. When the excitation light is irradiated on the fluorescent substance on the surface of the fluorescent membrane head, the fluorescent substance is excited, fluorescence is emitted, and the extinguishing time of fluorescence is affected by the concentration of oxygen molecules on the surface of the fluorescent membrane head. The concentration of oxygen molecules can be calculated by detecting the phase difference between fluorescence and excitation light and comparing it with the internal calibration curve, and the final value can be output by temperature and salinity compensation. This dissolved oxygen sensor can be used with the Dissolved Oxygen Controller and they are widely used in sewage treatment plants, waterworks, industrial production processes, aquaculture and other industries to monitor the dissolved oxygen value in real time.

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    Features

    ● Adopt optical measurement technology based on Fluorescence quenching principle
    ● The DO Sensor does not require consumables or maintenance during use, can greatly reduce the cost of use
    ● Without consuming oxygen, accurate measurement can be achievedwhen oxygen concentrationis low
    ● All-in-one package, the dissolved oxygen sensor can be used with the online transmitters, DTU, and portable instruments
    ● RS485 digital interface, Modbus RTU, support access to standard industrial control system and dissolved oxygen controller
    ● The protection grade is IP68, can work continuously and stably under water for a long time

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    Specification

    Product Name Dissolved oxygen sensor
    Product Model OPD790
    Brand Name Daruifuno
    Signal Output RS485 Modbus
    Measuring Range Oxygen content: 0.00~20.00 mg/L
    Saturation: 0~200%
    Temperature: 0~50℃
    Accuracy oxygen content: ±0.1 mg/L? saturation: ±1%? ?temperature: ±0.5℃
    Response Time 0-> 100 % ; T90<25s; 100 -> 0%;T90< 30s
    Compensation Automatic temperature compensation, built-in temperature unit
    Other Compensation salinity compensation, pressure compensation
    Calibration Method Zero calibration and full scale calibration
    Working Pressure 0~3Bar
    Operating Temp. 0~50℃
    Material Body: PPS or ABS? Head: 316 SS
    Connection? M16
    Power Supply 6~12V DC
    Dimensions Diameter 35mm, Total length 250 mm
    Installation A British 1 NPT of the head and the tail for each install thread
    Protection Grade IP68
    Weight 260g

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    Digital dissolved oxygen sensor dimension
    Digital DO sensor schematic diagram
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    FAQ

    1. What is the advantage of digital dissolved oxygen sensor?
    A: The digital dissolved oxygen sensor is conducive to long-distance signal transmission without serious signal attenuation. The sensor has RS485 digital interface, standard Modbus RTU communication protocol.
    2. Can the dissolved oxygen sensor work under water?
    A: Certainly. The protection grade of the dissolved oxygen sensor is IP68, it can work under water for a long time.
    3. What other water quality sensors does your company provide?
    A: Our company also has Digital pH Sensor, Digital Conductivity Sensor, Turbidity Sensor, COD Sensor and ammonia nitrogen sensor, etc. If you need online water quality analysis equipment, please contact us!

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