Authorised HEIDENHAIN distributors

ACC Systems Ltd

Industrial Automation

DRO 203

Versatile Digital Readout for up to 3 axes

ACU-RITE DR 203 Digital Readout 

The ACU-RITE DRO 203 digital readout is well suited for use on milling, drilling and boring machines and lathes with up to three axes.


The DRO 203 digital readout is designed as a sturdy upright unit with splash-proof full travel keypad for use in a workshop. It is equipped with a colour TFT screen for position values, dialog, input displays, graphic functions, and for a graphic positioning aid.


The DRO 203 digital readout is distinguished bt its Klartext (plain text) dialog guidance. The distance-to-go facilitates positioning tasks. You approach the next position quickly and reliably by simply traversing until the display reads zero. Special functions are available for producing linear and circular hole patterns. If the DRO 203 is used on a lathe then you can simply switch from radius to diameter display. For lathes with a seperate top slide the sum-display feature allows you to display the saddle and top-slides either together or seperately. To set presets, simply touch the workpiece and freeze the tool position. Then retract and measure the workpiece with the tool out of the way.

Data Interfaces

The DRO 203 has a USB port for reading and writing data and files.


Outline specifications:

DRO 203
Axes 2 or 3 axes, various axis designators
Encoder Inputs TTL
Display step Adjustable, max 7 digits
  • Linear axis: 1mm to 0.0001mm
  • Angular axis: 1° to 0.0001° or 00°00'01"
Display 7" TFT colour screen (15:9); 800 x 400 pixels
Status display Tool, reference point, operating function, feed rate, ABS/INC, mm/inch, stopwatch
  • 10 reference points
  • 16 tools
  • REF mark evaluation for distance coded or single reference marks
  • Distance-to-go mode
  • Scaling factor
  • mm/inch switching
  • Absolute-incremental display
  • Integrated help function
  • Graphic positioning aid
  • Calculator
For milling, drilling & boring
  • Calculation of positions for hole patterns (bolt hole circles, linear hole patterns)
  • Tool length and radius compensation
For turning
  • Taper calculator
  • Radius/diameter switching
  • Freezing the tool position for back off
  • Vectoring: X/Y display of the traverse path with inclined top slide
  • Sum display for Z and Zo (axis coupling)
Axis error compensation
  • Axis error: Linear and multi-point (up to 200 points)
  • Backlash compensation: for compensation of reversal error
Data interface USB connection, type C

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