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UWT2 Technical Datasheet
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  • UWT2 Technical Datasheet
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  • High performance MEMS inclinometer for underwater.
  • Strong environmental durability from shock and flooding.
  • For measurement and controlling of water gates, dams.
  • Customized specifications : various direction, range and output.
  • CE / FCC / ROHS / Q-mark (KO)
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  •  MEMS Inclinometer UWT2 is specialized for using in underwater with fully sealed stainless steel housing, polyurethane cable and strong environmental durability. UWT2 is suitable for long-term measurement and controlling of water gates, dams and underwater structures.
  • General Specifications

    Item Specifications Remark
    Measuring
    Range
    Uniaxial +/-1 ... +/-180 deg settable
    Biaxial +/-5 ... +/-80 deg settable
    Resolution 0.1 deg
    Non-Linearity 0.25% FS
    Response <0.1 sec
    Output 0.5 ... 4.5Vdc
    4.32 ... 19.68mA
    RS485
    Power Source 10 ... 30Vdc
    Current
    Consumption
    <60mA @12Vdc
    Operating
    Temp.
    -20 ... +85 celsius
    Waterproof IP68
    Dimensions ø79 x H20mm
    Weight 600g

    • Uniaxial : Set freely within +/-1 ... +/-180 deg
      e.g. -30 ... +90 deg / 0 ... +120 deg
    • Uniaxial 360 : 0 ... 360 deg fixed
    • Biaxial : Each axis within +/-5 ... +/-80 deg

    • RS485 protocol is self-designed.
    • Dimensions are without mounting.

    Sensing Directions

    X-axis, [Floor] X-axis, [Wall]
    Y-axis, [Floor] Y-axis, [Wall]

    • Above images show sensing directions of UWT2.










    Wiring Connections

    • RS485 output has always 4C connection.

    • Axial Color Analog RS485
      Uniaxial RED V+
      BLACK GND (COM)
      GREEN X+ A (T+)
      Biaxial WHITE Y+ B (T-)

    Dimensions

    • Refer attached drawings for detail dimensions and size.



    Analog Data Descriptions

    • Deg. from Analog - Vdc output



      • Measuring Range : max range - min range
      • Output V Range : 4.5V - 0.5V = 4V
      • Zero Offset : 2.5V

    • e.g. Measuring range +/-90 deg, Output 3.5V,




    • Deg. from Analog - mA output



      • Output mA Range : 19.68mA - 4.32mA = 15.36mA
      • Zero Offset : 12mA

    RS485 Protocol

    • Communication Standards

    • Baudrate 9,600 Data Bits 8
      Stop Bits 1 Parity None

    • Data Format (ASCII)

    • = STX + X deg + SP + Y deg + ETB + Check Sum + $

      • [SP+Y deg] is skipped for uniaxial.
      • Check Sum : Substitute ASCII of each bytes for HEX and calculate by XOR.

    • Commands (not case sensitive)

    • Carriage Return and Line Feed must be attached to end of commands.
      e.g. #DATA+CR+LF

      #DATA Measure data once.
      #READ Measure data continuously.
      #STOP Stop measuring.
      #INFO Get sensor information.
      #DAS1178 Enter ID set mode.
      #ID {NO} Set ID to {NO}.

      • ID can be set within 0...80. (in HEX, plus B0 to ID : B0...FF)
      • To complete ID set, set ID on ID set mode, power off and on again.

    • Multiple sensors on parallel connection, can measure individual sensor data ; set individual sensor ID and send below command in HEX.
      CR+LF is unnecessary in this case.

      Command : Sensor ID [B0~FF] + 05
      e.g. (HEX) B1 05


    Ordering Code

    • Format : UWT2- [1] - [2] - [3] - [4] - [5]

    • [1]
      • S
      • D
      • Uniaxial
      • Biaxial
      [2]
      • MV
      • MA
      • 485
      • 0.5 ... 4.5Vdc output
      • 4.32 ... 19.68mA output (Uniaxial Only)
      • RS485 output
      [3] Set measuring range
      [4]
      • F
      • W
      • sensing direction of [Floor]
      • sensing direction of [Wall]

      e.g. UWT2-S-MA-90-F
      measuring range 90 means +/-90 deg

    • Options
      • Cable length : additional cost per meter

    NOTES

    • Ground connection is recommended in noise occurred environment.
    • MEMS based inclinometer (tilt sensor) measure tilt (degree) by gravity. Check sensing directions before use.
    • Check wiring connections before use.
    • 12 months warranty is provided after released. Warranty provided only in case of using for designed purpose correctly.
    • Specifications, design and components can be changed without prior notice to improve its performances.






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