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DLD-420 Technical Datasheet
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  • DLD-420 Technical Datasheet
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  • High precise industrial laser distance sensor
  • Non-target(reflector) for maximum 20 meters
  • Analog+digital output and alarm function
  • High strength aluminum compact housing
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  •  Compact and high reliable industrial laser distance meter DLD-420 out distance data as electrical signal from measured distance by emitting visible laser. Maximum measurable distance with a target(reflector) is 80 meters and without a target is 20 meters.
  • General Specifications

    Item Specification Remark
    Distance 0 ... 80m  
    Accuracy +/-1mm  
    Laser Class Class 2 (IEC60825:2007)  
    Laser Type 635nm  
    Laser Output <1mW  
    Laser Diameter 6mm @10m  
    Output

    4...20mA + RS485

     
    Power Source 10 ... 30VDC  
    Current Drain <50mA @12VDC  
    Operating Temp. -10 ... +50 celsius  
    Waterproof IP65  
    Dimensions W65 x H40 x D65mm  
    Weight 150g  

    • Laser Class
    • Dimensions is without mounting and tube.



    Wiring Connections

    • The image as below shows pinmap of the gland.

    • Image No. Description
      1 Output+
      2 V+
      3 RS485 A (T+)
      4 RS485 B (T-)
      5 NC
      6 GND (COM)



    Analog Data Descriptions



    • Distance Range = max. distance - min. distance
    • Output mA Range = 20mA - 4mA

  • e.g. Distance range 0...10m, Output 12mA,

  • RS485 Protocol

    • Communication Standards

    • Baudrate 115,200 Data Bits 8
      Stop Bits 1 Parity None

      • Baudrate in the table is default value.


    • Data Format (ASCII)
    • =[ID= nn VALUE= nnnnn]

      • ID has 2 digits.
      • Value has 1...5 various digits and mm of unit.

    • Commands
    • Carriage Return and Line Feed must be attached to end of commands.

      e.g. <1 RUN>+CR+LF

      (@ is ID of the sensor and # is set value.)

      • <0 ID>
        ID checking

      • <@ ID_SET #>
        Set ID from @ to #

      • <@ RUN>
        Measure data once.

      • <@ RUNNING>
        Measure data continuously.

      • <@ STOP>
        Stop measuring.

      • <@ LENGTH_MIN #>
        Set minimum distance to #. (unit is millimeter.)
        Minimum distance can be set within 1...79999 and cannot exceed maximum distance.
        This command affects only for analog output.(RS485 output is fixed in full-scale.)

      • <@ LENGTH_MAX #>
        Set maximum distance to #.
        Maximum distance can be set within 2...80000 and cannot be less than minimum distance.

      • <@ INTERVAL #>
        Set out-rate to # within 500...30000. (unit is millisecond.)

      • <@ CAL 1234>
        Set current measured distance to zero.
        (1234 is the number of protection.)

      • <@ BAUD_RATE #>
        Set baudrate to #.
        # can be 115200 / 57600 / 38400 / 19200 / 9600 / 4800.

      • <@ OUTPUT_VIEW #>
        Set output data format to # within 0...2 as below.

      • 0 [ID=XX VALUE=nnnnn]
        1 [# nnnnn]
        2 [VALUE=nnnnn]

      • <@ ON_RUNNING #>
        Set function of automatically start measuring when power is on.

      • 0 Manual start
        1 Automatic start

      • <@ SAVE 1234>
        Save ID and configurations. ID and any configurations not saved will be initialized when shut power off.
        (1234 is the number of protection.)

      • <@ FACTORY_RESET 1234>
        Factory reset. (1234 is the number of protection.)


    Dimensions

    • Refer attached drawings for detail dimensions and size.

    NOTES

    • Keep lens clean as DLD-420 is a device emitting visible laser.
    • Do not look laser directly or aim a person.
    • Do not look laser directly with any optical instruments.
    • RS485 protocol may cause delay or crash by internal processing time and other reasons. If commanding is not in real-time, repeat sending the command.
    • 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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