• Best-in-class accuracy ±(2.4+2.1L/600)μm
  • Newly developed high accuracy and high resolution ABSOLUTE linear encoder for position detection. Once origin is set, origin setting is not required each time you turn the power ON (except in the case of a large environmental temperature change).
  • GO/±NG judgment is performed by setting upper and lower tolerances. If a judgment result is out of tolerance, the display backlighting changes from green to red, so tolerance judgment can be made at a Glance
  • Frequent-use measurement such as inside/ outside diameter and pitch calculation can be implemented by icon-based commands that also support easy one-key operation.
  • Possible to measure inside/outside diameters via a unique method (detect the circle apex and process by tracing measurement*).
  • Tracing measurement stroke is 1mm upwards and downwards from the measurement start point.
  • Built-in air-suspension feature mechanism using an internal pump enables smooth movement over a surface plate. (Lower-cost version without air suspension also available.)
  • With SPC and RS-232C
  • Continuous battery life of 300 hours*5 using four alkaline (Also works with four NiMH AA/HR6 rechargeable batteries.)

SPECIFICATIONS
Metric

Code No. 518-230 518-232 518-234 518-236
Measuring range (stroke) 0 -465mm (350mm) 0 -715mm (600mm) 0 -465mm (350mm) 0 -715mm (600mm)
Resolution (selectable)

0.001mm/

0.005mm

0.001mm/

0.005mm

0.001mm/

0.005mm

0.001mm/

0.005mm

Accuracy at 20˚C Measurement*1 ± (2.4+2.1L/600) μm
Repeatability*1 2     1.8μm
Perpendicularity*2 (20˚C) 7μm 12μm 7μm 12μm
Guiding method Roller bearing
Drive method Manual (wheel)
Measurement principle Electromagnetic induction absolute encoder
Measuring force 1.5±0.5N
Data output ports Digimatic / USB*3
Air-suspension feature Not included Not included

Included

(for positioning only)*4

Included

(for positioning only)*4

Power supply Alkaline AA/LR6 batteries × 4 (standard accessories) /   AC adapter (optional accessory) / Supports NiMH (HR6) rechargeable batteries × 4

 

 

Battery life guidelines*5

Approx. 300 hours (continuous use) LED: Other than full-time illumination

Approx. 100 hours (continuous use) LED: Full-time

illumination

Approx. 300 hours (continuous use) LED: Other than full-time illumination

Approx. 100 hours (continuous use) LED: Full-time

illumination

Approx. 300 hours (continuous use) LED: Other than full-time

illumination

Approx. 300 hours (continuous use) LED: Other than full-

time illumination

Approx. 3.3 days when the air-suspension feature is    used for 0.5 hours/day. Approx. 3.3 days when the air-suspension feature is    used for 0.5 hours/day.
Mass 25kg 29kg 25kg 29kg
Size (mm) Stroke 350mm type: 280(W)x273(D)x784(H)mm Stroke 600mm type: 280(W)x273(D)x1016(H)mm
Operating temperature range (recommended) 0 − 40˚C (10 − 30˚C)
Operating temperature range 20 – 80%RH (Must be free from condensation)
Storage temperature range -10˚C − 50˚C
Storage humidity range 5 – 90% RH (Must be free from condensation)

 Inch/Metric

Code No. 518-231 518-233 518-235 518-237
Measuring range

0-465mm

(0 – 350mm/0-14”)

0-715mm

(0 – 600mm/0-24”)

0-465mm

(0 – 350mm/0-14”)

0-715mm

(0 – 600mm/0-24”)

Resolution (selectable)

0.001mm/0.005mm/

.00005”/.0001”/.0002”

0.001mm/0.005mm/

.00005”/.0001”/.0002”

0.001mm/0.005mm/

.00005”/.0001”/.0002”

0.001mm/0.005mm/

.00005”/.0001”/.0002”

Accuracy at

20˚C

Measurement*1 ± (2.4+2.1L/600) μm
Repeatability*1 2     1.8μm
Perpendicularity*2 (20˚C) 7μm 12μm 7μm 12μm
Guiding method Roller bearing
Drive method Manual (wheel)
Measurement principle Electromagnetic induction absolute encoder
Measuring force 1.5±0.5N
Data output ports Digimatic / USB*3
Air-suspension feature Not included Not included

Included

(for positioning only)*4

Included

(for positioning only)*4

Power supply

Alkaline AA/LR6 batteries × 4 (standard accessories) /

AC adapter (optional accessory) / Supports NiMH (HR6) rechargeable batteries × 4

 

 

Battery life guidelines*5

Approx. 300 hours (continuous use) LED: Other than full- time illumination

Approx. 100 hours (continuous use) LED: Full-time illumination

Approx. 300 hours (continuous use) LED: Other than full- time illumination

Approx. 100 hours (continuous use) LED: Full-time illumination

Approx. 300 hours (continuous use) LED: Other than full-

time illumination

Approx. 300 hours (continuous use) LED: Other than full-

time illumination

Approx. 3.3 days when the air-suspension feature is

used for 0.5 hours/day.

Approx. 3.3 days when the air-suspension feature is

used for 0.5 hours/day.

Mass 25kg 29kg 25kg 29kg
Size (mm)

Stroke 350mm type: 280(W)x273(D)x784(H)mm

Stroke 600mm type: 280(W)x273(D)x1016(H)mm

Operating temperature range (recommended) 0 − 40˚C (10 − 30˚C)
Operating temperature range 20 – 80%RH (Must be free from condensation)
Storage temperature range -10˚C − 50˚C
Storage humidity range 5 – 90% RH (Must be free from condensation)

*1 The indication accuracy and repeatability represent the values obtained from the height measurement of a flat surface using the standard holder with ø5 ball contact point. In the case of diameter, minimum (maximum) value, circle pitch or difference measurement, measuring errors may be larger than the accuracy ratings listed in the table due to variations in measuring force during a scanning measurement, which differs from height measurement.
*2 Indicates the value obtained from the measurement of a straight surface placed perpendicular to the the base reference surface using the Lever Head (MLH-321) and Mu-checker (M-411).
*3 Requires special communication driver and software. Consult your local Mitutoyo Sales Office for details. These can be downloaded from the Mitutoyo web site.
*4 When using a model with the air-suspension feature, it is advisable to use a JIS 1 class, or higher, surface plate. Using on surfaces with scratches or unevenness may prevent the system operating to the specified performance.
*5 Battery life depends on the operating conditions. In particular, it is more economical to use the optional AC adapter to power the instrument if the application requires prolonged use of the air-suspension feature.

DIMENSIONS

Standard accessories
05HZA148
5-stepped probe

12AAA715 Ball-diameter corrected block
Auxiliary grip
Optional accessories
12AAC072: Depth probe
12AAA792: Dial indicator (ø8mm stem) holder
12AAA793: Probe extension holder (85mm/3.3”)
12AAF667: ø2mm ruby ball probe (coaxial type)
957261: ø2mm ball probe (coaxial type)
957262: ø3mm ball probe (coaxial type)
957263: ø4mm ball probe (coaxial type)
957264: ø14mm disk probe
957265: ø20mm disk probe
12AAA788: ø4mm ball offset probe
12AAA789: ø6mm ball offset probe
226116: Test indicator (ø6mm stem) adapter
Sample workpiece 12AAA879
Scriber 05HZA173
Digimatic connecting cable
936937 (1m)
965014 (2m)
AC Adapter 06AEG180JA/D/E/K/DC
05HZA143: 9×9 adapter
(clamp 901385 is required)
05GZA033: Clamp (for 9×9 adapter)
05HZA144: 6.35×12.7 adapter
(clamp assy. 901385 is required)
901385: Clamp assy. (for 6.35×12.7 adapter)
02AZE990: U-WAVE mounting plate