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.

Milling Specific Features

• Bolthole pattern calculations with graphics (full and partial circles/linear patterns)
• Centerline calculation enables you to establish workpiece zero and midpoints
• Edge finder input
• I/O (option)

Turning Specific Features

• Lock axis feature
• Instant radius/diameter conversion
• Taper Calculator
• CSS (option)

Specifications

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”)

Display:

• 3 Axes
• 7-inch color widescreen (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
• ABS/INC
• 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

Switching I/O:

• Input for Edge Finder (with switching signal or contact triggering)
• Further input/outputs over the IOB 49 external input/output unit

Options:

• 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 (IP 54 front panel)

Weight: ~1.9 kg

Documentation

Product Manual

Product Brochure

The most complete digital readout system in the machine tool marketplace, the DRO300 has full part program capability, 99 tool offsets and multiple DRO displays along with standard input/output capability and edgefinder probe support all on an easy to read 7-inch color display. Designed and manufactured in the USA, ACU-RITE readouts are the first choice for machine tool builders and users alike.

Milling Specific Features

• Bolt hole pattern calculations with graphics (full and partial circles/linear patterns)
• Centerline calculation enables you to establish work piece zero and midpoints
• Edge finder/touch probe input
• I/O (option)

Turning Specific Features

• Lock axis feature
• Instant radius/diameter conversion
• Taper Calculator
• CSS (option)

Specifications

Application: Milling, turning, grinding, boring and general purpose

Axes: 2, 3, and 4 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”)

Display:

• 3 Axes (DRO303) or 4 Axes (DRO404)
• 7-inch color widescreen (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
• ABS/INC
• mm/inch
• Stopwatch

Axis display: Standard

Common Functions:

• Multiple Display Views – DRO1, DRO2 & DRO3
• Program Storage
• Advanced Skew Compensation
• Job Clock / Stop Watch
• Feed Rate Display
• Multiple Language Support
• Absolute/Incremental
• Near-Zero Warning with Graphics
• Help function
• 99 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:

• Lock Axis Feature establish tool offsets with the tool under load, resulting in reduced tool deflection
• Instant radius / diameter conversion
• Taper calculator, Vectoring
• INCLUDES Thread Assist simplify cutting metric threads on lathes with English leadscrews

Milling Specific Functions:

• Bolt-hole Pattern Calculations with Graphics (full and partial circles/linear patterns)
• Centerline Calculation establish workpiece zero and midpoints
• Edge finder/touch probe input

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

Switching I/O:

• Input for Edge Finder (with switching signal or contact triggering)
• Further input/outputs over the IOB 49 external input/output unit

Options:

• CSS (Constant surface speed), I/O (Input/Output)
• Multiple Scale Coupling Box
• Electronic Edgefinder
• Single-Position Tilting Base, Multiposition Holder, Mounting Frame, Protective Cover
• IB2X (allows input of 2 additional axis)

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 (IP 54 front panel)

Weight: ~1.9 kg

Documentation

Product Manual

Product Brochure

• Compact dimensions
• Resolutions from 0.5 µm to 5 µm
• Output signals: TTL
• Measuring lengths from 25mm/1” to 500mm/20”
• Distance-coded reference marks

Specifications

Measuring standard: Glass scale with incremental graduation

Accuracy grade: ± 3 μm

Measuring length ML Metric ( Mounting spar optional): 50 75 100 125 150 175 200 225 250 275 300 325 350 375 425 475 525

Measuring length ML Inch: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 16 18 20

Incremental signals: TTL, TTL x 5, TTL x 10

Grating period: 20 μm, 20 μm, 20 μm

Integrated interpolation: without, 5-fold, 10-fold

Signal period: 20 μm, 4 μm, 2 μm

Measuring step: 5 μm, 1 μm,  0.5 μm

Reference marks: Distance-coded

without load: 5.1 V ± 0.1 V/< 180 mA, 5.1 V ± 0.1 V/< 220 mA

Electrical connection: Cable in metal armor, with 9 pin D sub connector; length: 3m

Cable length: ≤ 6 m (total length with ACU-RITE cable)

Traversing speed: ≤ 60 m/min

Required moving force: ≤ 2.2 N

Operating temperature: Temperature 0 to +50 °C; humidity 25% to 95% (no condensation forming)

Storage temperature: Temperature –20 to +70 °C; humidity 20% to 95% (no condensation forming)

Protection EN 60 529: IP 53 when mounted according to the mounting instructions

Weight: 0.5 kg + 0.3 kg/m measuring length

Documentation

Product Manual

Product Brochure 

The compact and robust design and the numerous possibilities for mounting make it ideal for retrofitting. The slight dimensions and high accuracies of this ball-bearing guided encoder, which uses the reflected light method, are ideal prerequisites that can be used in metrology applications.

• Robust design
• Resolutions from 0.5 µm to 5 µm
• Output signals: TTL
• Measuring lengths from 75 mm/2” to 3075 mm/120”
• Distance-coded reference marks

Specifications

Measuring standard: Glass scale with incremental graduation

Accuracy grade: ± 5 μm

Measuring length ML Metric (Mounting spar optional): 75 100 125 150 175 225 275 300 325 350 375 400 425 475 525 625 675 725 775 825 875 925 950 1000 1050 1100 1250 1350 1400 1550

Measuring length ML Metric ( Mounting spar included in items supplied): 1675 1850 2000 2150 2300 2575 2825 3075

Measuring length ML Inch: 2 4 6 8 10 12 13 14 16 18 20 24 26 28 30 31.5 32 35 36 38 40 42 48 52 54 60 65 72 78 84 90 100 110 120

Incremental signals: TTL, TTL x 5, TTL x 10

Grating period: 20 μm, 20 μm, 20 μm

Integrated interpolation: without, 5-fold, 10-fold

Signal period: 20 μm, 4 μm, 2 μm

Measuring step: 5 μm, 1 μm, 0.5 μm

Reference marks: Distance-coded

without load: 5.1 V ± 0.1 V/< 180 mA, 5.1 V ± 0.1 V/< 220 mA

Electrical connection: Cable in metal armor, with 9 pin D sub connector; length: 4m starting from measuring length 1250 mm: length 6 m

Cable length: ≤ 10 m (total length with ACU-RITE cable)

Traversing speed: ≤ 60 m/min

Required moving force: ≤ 3.4 N

Operating temperature: Temperature 0 to +50 °C; humidity 25% to 95% (no condensation forming)

Storage temperature: Temperature –20 to +70 °C; humidity 20% to 95% (no condensation forming)

Protection EN 60 529: IP 53 when installed according to mounting instructions

Weight: 0.65 kg + 0.7 kg/m measuring length

Documentation

Product Manual

Product Brochure