
DRO203 Digital Readout
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.
DRO203 support

Installation instructions (in English, French, Spanish)

Milling-specific features
- Centerline calculation enables you to establish workpiece zero and midpoint
- Bolthole pattern calculations with graphics (full and partial circles/linear patterns)

Turning-specific features
- Instant radius/diameter conversion
- Taper Calculator
- CSS (option)
- Lock axis feature

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. Click here to see Dynamic Zoom in action.

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.

Curious about ROI?
With our DRO ROI calculator, you can input your shop’s characteristics and find out how quickly a DRO can pay you back.

International documentation
Visit our Manuals & Flyers page and scroll to the bottom for international documentation.
Frequently Asked Questions
What is the difference between DRO203 and DRO300?
DRO203 works with up to three axes. DRO300 series works with up to four. Both come with milling- and turning-specific functions and common cycles preprogrammed. In addition, the DRO300 series offers a program and space for saving up to 99 tool offsets/diameters.
What is the advantage of 3-axis DRO on a lathe compared to two-axis?
During milling, a 3-axis DRO allows for direct position feedback on the quill and knee. A 3-axis DRO can account for the cross slide, longitudinal and compound axes and allow for vectoring within the DRO. They’re also useful on lathes with more than one carriage, where two reader heads on the same scale create an X/Z/Z1 axis arrangement.
Specifications
Application | Milling, turning, grinding, boring and general purpose |
Axes | 2 or 3 from A to Z and Z0 |
Encoder Inputs | TTL |
Display step |
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Display |
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Status Display |
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Axis Display | Standard |
Common Functions |
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Turning Specific Functions |
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Milling Specific Functions |
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Cycles | Oblique line, circular arcs; only for milling, drilling, boring:circular and linear hole patterns |
Error Compensation |
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Data Interface | USB 2.0 type C
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Options |
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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 |