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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.
  • Specification

    Item Specification Remark
    Measuring
    Range
    Uniaxial ±180˚ Settable
    Biaxial ±90˚ Settable
    Resolution 0.1° (deg)  
    Non-linearity 0.25% FS  
    Response <0.1 sec  
    Ouput 0.5~4.5Vdc
    4.32~19.68mA
    RS485
     
    Power Source 10~30Vdc  
    Current
    Consumption
    <60mA @12Vdc
    Operating
    Temp.
    -20℃~85℃  
    Waterproof IP68  
    Dimensions ø79 x H20㎜ without mount
    Weight 600g  
    Cable PU, 3000mm  
    • Measuring Range
      e.g. -90˚ (deg) ~ +90˚ (deg) or -30˚ (deg) ~ +60˚ (deg)
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    • For 2-axis specifications, individual measurement ranges can be specified for each axis.
      For the ±90° (deg) specification, the error range increases at angles exceeding ±85° (deg).
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    • Uniaxial -0.5˚ ~ +0.5˚ etc. cannot be less than ±1˚
      Biaxial -3˚ ~ +3˚ etc. cannot be less than ±5˚.
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    • Apply RS485 own protocol.

     

     

     

    Data Descriptions

    • Deg. from Analog –Vdc output
      • Measuring Range = Max angle –Min angle
      • Output V Range
        = Max V output –MinVoutput
        = 4.5V –0.5V = 4V
      • Zero offset = 2.5V
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    • e.g.Measuring range ±90°, output 3.5V,

     

    • Deg. from Analog –mA output
      • Output mA range
        = Max mA output–MinmA output
        =19.68 –4.32 = 15.36mA
      • Zero offset= 12mA

     

     

     

    Ordering Code

    Axis S
    D
    Uniaxial
    Biaxial
    Output MV
    MA
    485
    0.5 ~ 4.5Vdc output
    4.32 ~ 19.68mA output
    RS485output
    Measuring Range Set measuring range
    Mount F
    W
    Sensing direction of Floor
    Sensing direction of Wall
    • Code format : UWT2-[①]-[②]-[③]-[④]
    • e.g. UWT2-S-MA-90-F
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    • Cable length : additional cost per meter.

     

     

     

    Sensing Directions

    X-axis, Floor Mount X-axis, Wall Mount
    Y-axis, Floor Mount Y-axis, Wall Mount
    • Above images show sensing directions of UWT2.

     

     

     

    Wiring Connections

    Axial Color Analog RS485
    Uniaxial RED V+
    BLACK GND (COM)
    GREEN X+ A (T+)
    Biaxial WHITE Y+ B (T-)
    • RS485 has always 4colors.

     

     

     

    RS485 Protocol

    • Communication Standards
    Baud rate 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.
      예) #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.)

       

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

     

     

     

    Notes

    • Specification changes after shipment will be charged for a fee, so please be sure to order with the correct specifications.
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    • Ground connection is recommended in noise occurred environment.
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    • MEMS based inclinometer (tilt sensor) measures tilt (degree) by gravity. Check sensing directions before use.
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    • Check wiring connections before use.
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    • 12 months warranty is provided after released. Warranty provided only in case of using for designed purpose correctly.
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    • Specifications, design and components can be changed without prior notice to improve its performances.

     

     

     

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