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Uson-21 Flame-proof Ultrasonic Level Transmitter

Uson-21 Flame-proof Ultrasonic Level Transmitter
  • Uson-21 Flame-proof Ultrasonic Level Transmitter
  • Uson-21 Flame-proof Ultrasonic Level Transmitter

Uson-21 Flame-proof Ultrasonic Level Transmitter

● Can be applied in explosive and hazardous areas

● Different ranges can be selected, including 5 meters, 10 meters and 15 meters.

● Certificated with Flame-proof of Ex d II C T6 Gb.

● Non-contact continuous level measurement technology, has temperature compensation function, with high accuracy and strong adaptability.

● RS-485 communication interface.

● Special sound wave processing pattern effectively avoids false wave.

● Ingress protection to IP66/67.

Corrosion-resistant PVDF probe protects instrument to measure reliably in corrosive liquid or corrosive environment.

High cost performance but low maintenance cost, simple structure and easy installation.


  • Uson-21 Flame-proof Ultrasonic Level Transmitter is designed with flame-proof housing and got Flame-proof Certificate (Ex d II C T6 Gb) that certified by the National Explosion-proof Product Quality Supervision and Inspection Center. The working principle of Uson-21 is the same as Uson-11, the difference is that Uson-21 is not only suitable for general working conditions, but also explosive environment.


  • Uson-21 works on the principle of the travel time of ultrasonic pulse. Transducer sends out high frequency ultrasonic pulse, the pulse hits liquid surface and reflects back, part of the reflected sound wave is received by the transducer and converted into electrical signal. The ultrasonic pulse transmits at the velocity of sound wave, and the time interval between transmission and reception of ultrasonic pulse is directly proportional to the distance between transducer and liquid surface. This relationship between the distance S, the sound speed C and the transmission time T can be expressed by the formula: S=CxT/2.


  • ● Can be applied in explosive and hazardous areas

    ● Different ranges can be selected, including 5 meters, 10 meters and 15 meters.

    ● Certificated with Flame-proof of Ex d II C T6 Gb.

    ●  Non-contact continuous level measurement technology, has temperature compensation function, with high accuracy and strong adaptability.

    ● RS-485 communication interface.

    ● Special sound wave processing pattern effectively avoids false wave.

    ● Ingress protection to IP66/67.

    ● Corrosion-resistant PVDF probe protects instrument to measure reliably in corrosive liquid or corrosive environment.

    ● High cost performance but low maintenance cost, simple structure and easy installation.


  • Measurement range

    5m, 10m, 15m

    Transducer

    StandardABS

    Anti-corrosionPVDF

    Dead zone

    0.3m (5m/10m)

    0.6m (15m)

    Resolution

    ±0.3% of the setting range

    Beam angle

    6°(5m), 8°(10m), 10°(15m)

    Accuracy

    1%

    Display

    LCD

    Buttons

    Three-button

    Power

    85-240VAC 50/60Hz

    18-30VDC

    Signal

    Two-wire 4-20mA

    Four-wire 4-20mA

    OptionalRS485/Relay

    Relay contact capacity

    4A 250VAC/30VDC

    Ambient temperature

    -2060

    Process temperature

    -2080

    Process pressure

    Normal

    Electrical interface size

    M20x1.5

    Housing

    Aluminum alloy

    Process fitting

    Thread

    Flange

    Protection level

    IP66/IP67

    Flame-proof

    Ex d IIC T6 Gb

  • ● Ideal solutions for water and wastewater industries that contain explosive gas, such as open pools, sewage water tank, water treatment, water conservancy, reservoir, river and lake level measurement.

    ● Level control in corrosive environment that contain explosive gas, such as urban drainage pumping station, water collecting well, biochemical reaction pool and sedimentation tank.


  • Uson-21 Flame-proof Ultrasonic Level Transmitter
  • Uson-21 Flame-proof Ultrasonic Level Transmitter
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