DRO203 Digital Readout


Operating Instructions

Installation Instructions (in English, French, Spanish)

Product Brochure

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ROI Calculator

REACH Documentation


For International documentation, scroll to the bottom of our Manuals & Flyers page.

The most popular digital readout system in the machine tool marketplace, the DRO203 incorporates 7-inch color display technology with versatile software. Designed and manufactured in the USA, ACU-RITE readouts are the first choice of machine tool builders and users alike.
DRO200 hole patternDRO200 Taper Calculator

Milling Specific Features

  • Bolthole pattern calculations with graphics (full and partial circles/linear patterns)

  • Centerline calculation enables you to establish workpiece zero and midpoints

Turning Specific Features

  • Lock axis feature

  • Instant radius/diameter conversion

  • Taper Calculator

  • CSS (option)

DRO200 dynamic zoom 3X displayDRO200 installation guide displayDRO200 night mode 3X display

Dynamic zoom

The currently moving axis can be geographically highlighted. In “dynamic zoom” mode, the position value is zoomed to its maximum size depending on the number of digits. This greatly improves legibility—especially from a great distance.

Installation guide

When you switch on the digital readout for the first time, the DRO203 supports you with an installation guide. You are led step by step through the most important settings until the device is ready for operation.

Day/night switching

Depending on the ambient-light conditions at the machine, you can switch the screen of the DRO203 to a light or dark background.


Application Milling, turning, grinding, boring and general purpose
Axes 2 or 3 from A to Z and Z0
Encoder Inputs TTL
Display step
  • Adjustable, max. 7 digits
  • Linear axis: 1 mm to 0.0001 mm
  • Angular axis: 1° to 0.001° (00° 00′ 01”)
  • 3 Axes
  • 7-inch color wide screen (15:9)
  • Resolution 800 x 480 pixels for Position Values, Dialog Messages, Input and Graphic Functions
Status Display
  • Tool
  • Reference point
  • Operating function
  • Feed rate
  • mm/inch
  • stopwatch
Axis Display Standard
Common Functions
  • Job Clock / Stop Watch
  • Feed Rate Display
  • Multiple Language Support
  • Absolute/Incremental
  • Near-Zero Warning with Graphics
  • Help Function
  • 16 Tool Offsets/Diameter
  • Preset and Zero Reset
  • 4 Function Calculator/Trig Calculator
  • Instant Inch/mm Conversion
  • Position-Trac™ Home Reference System
  • Linear/Non-Linear Compensation up to ±9,999 ppm
Turning Specific Functions
  • Taper calculator
  • Radius/diameter switching
  • Freezing the tool position for back-off
  • Vectoring: X/Y display of the traverse path with inclined top slide
Milling Specific Functions
  • Bolt-hole Pattern Calculations with Graphics (full and partial circles/linear patterns)
  • Centerline Calculation establish workpiece zero and midpoints
Cycles Oblique line, circular arcs; only for milling, drilling, boring:circular and linear hole patterns
Error Compensation
  • Axis error: Linear and nonlinear over up to 200 points
  • Backlash compensation: for compensation of reversal error
Data Interface USB 2.0 type C

  • For Output of Parameters to a USB Stick or PC
  • For Input of Parameters, Remote Control of Keys and Commands
  • Single-Position Tilting Base
  • Multiposition Holder
  • Mounting Frame
  • Protective Cover
Electrical Requirements AC 100 V to 240 V (±10 %), 50 Hz to 60 Hz (±5 %), ≤ 33 W
Operating Temperature 0° to 45º C (32º to 113º F)
Protection EN60529 IP 40, Front Panel IP 54
Weight ~1.9 kg