Sensor Systems

Linear Displacement Sensors

LINEAR GAGE

Catalog No. E13007(7)Measurement principle

LINEAR GAGE
Mitutoyo Precision Gage Heads

Optical transmission-type linear encoders
The gage heads mainly use optical transmission-type linear encoders,

Full Lineup of Gage Heads from
Ultra-high Precision to
Excellent Cost-performance Types

the principle of which is shown below. In this type, the light source (LED)and the detector element (photodiode) face each other with the main scale
and index scale (20 µm pitch) positioned between them. As the scale moves
with respect to the detector, the intensity of the light passing through thewindow in the index scale varies constantly. At this time, two synchronizedsine-wave signals having a relative 90-degree phase difference are output.
These signals are then amplified and split electrically (with additional
waveforms inserted) and output as 0.1 µm, 0.5 µm or 1 µm square-wave
signals.
Main scale
Photo-diodeLED
Index scale

Condenser lens

Phase-PA
Phase-A

20 µm

20 µm
Phase-PB

Phase-B

Measuring pitch

5 µm

2

3

Traceability of Mitutoyo Standards

I N D E X

As of July, 2021

Traceability of Length Field
National Metrology Institute of Japan/National Institute of Advanced
Industrial Science and Technology (NMIJ / AIST)The atomic clock synchronized to UTC National (Primary) Standard

Traceability of Temperature

National Metrology Institute of Japan/National Institute of Advanced
Industrial Science and Technology (NMIJ /AIST)The atomic clock synchronized to UTC and the optical frequency comb
〈National (Primary) Standard〉〈National (Primary) Standard〉

NMIJ/AIST

Mitutoyo Metrological Standards Calibration Section(JCSS Accredited Cal. Lab. No. 0067)
Frequency Standard Oscillator〈Secondary Standard〉(As a standard of optical frequency comb)
Mitutoyo Miyazaki Plant

NMIJ /AIST
Temperature fixed points

Reference flat

JEMIC
Temperature fixed point〈National (Sub-Primary) Standard〉(JCSS Accredited Cal. Lab. No. 0067)
633 nm Iodine Stabilized He-Ne Laser〈Working standard〉

JCSS Accredited Cal.Lab.
Temperature fixed point/
Platinum resistance thermometer〈Secondary Standard〉

Mitutoyo Utsunomiya Calibration Center

Mitutoyo Miyazaki Plant(JCSS Accredited Cal.Lab. No. 0031)
633 nm Stabilized He-Ne Laser〈Laboratory Reference Standard〉

633 nm Stabilized He-Ne Laser

Mitutoyo Miyazaki Plant(JCSS Accredited Cal.Lab. No. 0030)
Standard Gauge Block〈Working standard〉

LG100 ………………………………………………………………………… 12 - 14
LG200 ……………………………………………………………………………… 15

Mitutoyo Metrological Standards Calibration Section(JCSS Accredited Cal.Lab. No. 0030)
633 nm Iodine Stabilized He-Ne Laser〈Laboratory Reference Standard〉

Measurement principle ………………………………………………… 3
Traceability of Mitutoyo Standards ………………………………… 4
Applications ……………………………………………………………… 6 - 9
Gage Heads/Display units ………………………………………… 10, 11
Gage Heads Specifications

Mitutoyo Kawasaki Calibration Center(JCSS Accredited Cal. Lab. No. 0086)
633 nm Stabilized He-Ne Laser〈Laboratory Reference Standard〉(JCSS Accredited Cal.Lab. No. 0031)
Standard Gauge Block〈Laboratory Reference Standard〉

LGS-1012P ………………………………………………………………………… 18
Head Specifications (Optional accessories) ……………………………… 19 - 23
Head Specifications (Differential square-wave) ………………………………… 24

Mitutoyo Metrological Standards
Calibration Section(JCSS Accredited Cal. Lab. No. 0067)
Temperature fixed point(Triple point of water)/
Platinum resistance thermometer〈Laboratory Reference Standard〉

Mitutoyo Utsunomiya Calibration Center

LGH …………………………………………………………………………… 16, 17

Head Specifications (Digimatic code) …………………………………………… 25

Counter Specifications

EJ-102N Counter, Interface Unit …………………………………………… 26, 27
EC Counter - Only for Digimatic output ………………………………………… 29
EH Counter - Panel mount, Multi-function Type with RS-232C………… 30 - 35
Communication Functions
Origin Point Mark Detection …………………………………………………… 36

Mitutoyo Sales and Service Division

Mitutoyo Utsunomiya Calibration Center(JCSS Accredited Cal.Lab. No. 0186)
Standard Gauge Block/Step Gage/
Standard Scale/633 nm Stabilized He-Ne
Laser Laboratory Reference Standard〉(JCSS Accredited Cal.Lab. No. 0031)
Standard Gauge Block /Micrometer Standard / Step Gage〈Working standard〉

Connecting linear gages to counters/………………………………………… 37
Comparative table of counter functions

Mitutoyo Hiroshima Calibration Center(JCSS Accredited Cal.Lab. No. 0109)
Standard Gauge Block/
Micrometer Standard / Step Gage
〈Laboratory Reference Standard〉

Linear Gage Accessories (Optional)……………………………………… 39, 40

Quick Guide to Precision Measuring Instruments

Quick Guide to Precision Measuring Instruments ……………………………… 41
Before using the gage head ……………………………………………………… 42
WorkingStandard

Step Gage

Gauge Block

Measuring
Coordinate
VisionInstrument Measuring Machine Measuring Machine

Ring Gage

Precision
Sensors

Dial Indicator Tester

Small Tool
Instruments

Standard Scale

Form
Measurement

Laser Length
Measuring Machine

Scale Units

Precautions in mounting a Linear gage …………………………………… 42 - 43

Optical Flat/
Optical Parallel

OpticalMeasuring

Thermometer

Note: This chart shows a simplified traceability system of Mitutoyo. Detailed traceability charts are published for each product.

About CAD data provided from website
If required, customers can download 2D/3D CAD data for Mitutoyo measurement
equipment from the Mitutoyo website for the purpose of using in customers' design work.
• Mitutoyo website

https://www.mitutoyo.co.jp/eng/

45

Applications
Precision Parts Manufacturing

Semiconductor parts molding

Reflow/Inspection

Packaging

Assembling/Inspection

Roll gap measurement

6

Product manufacturing

PCB thickness measurement

Seating check

FPD board multipoint measurement

Chip parallelism measurement

Measurement of crimping height

Parallelism measurement of copying
machine parts

7

Applications
Automobile Manufacturing Process8

Cam-lift measurement

Brake disk multipoint measurement

Machine device tool length measurement

Workpiece discrimination

Flatness measurement

Workpiece height detection

Workpiece runout measurement

Inspection fixture9Gage Heads/Display units[Gage Heads][Display units][Interface Unit /Software]

Environment-Resistant

DIN rail-mounted TypeInterface Unit

LG100

EJ-102N

Phase-A/B/Z
With origin point mark

CC-Link
21HZA186

Phase-A/B/Z
With origin point markMeasuring range: 10 mm / 25 mm /50 mm
Resolution: 1 µm / 0.5 µm / 0.1 µm[Conversion plug]

2-axis input, subtraction calculations
8 units can be connected
Refer to page 26

Refer to page 12

Panel mount

Conversion plug
21HZA196

LG200*
Phase-A/B

Refer to page 26

Phase-A/B/Z
With origin point mark2-axis input, subtraction calculations
Multi-function
Refer to page 30

Refer to page 15

EtherNet/IP
21HZA188
Refer to page 26*Function of reference point detection on counter is disabled

Conversion plug
21HZA195

EtherCAT
21HZA264

EH-101P (1 axis)
EH-102P (2 axes)
Phase-A/B

Multi-function

Refer to page 30

Digimatic

LGS

Refer to page 26

2-axis input, subtraction calculations
Multi-function
Refer to page 30

Digimatic

Refer to page 26

USB
21HZA149

EH-102D

Digimatic output Type

Setup tool for EJ counters

LG QuickSetupTool

Compact display Unit
Measuring range: 12.7 mm
Resolution: 10 µm

PROFINET
21HZA187

EH-102Z

Slim Type

Measuring range: 10 mm
Resolution: 1 µm / 0.5 µm / 0.1 µm

Refer to page 26(can be downloaded for free from the Mitutoyo website)

EC-101D

Refer to page 18

Digimatic

High-accuracy Type1-axis input

Refer to page 29

Refer to page 28

LGH

Measurement data acquisition software

SENSORPAK
Measuring range: 10 mm
Resolution: 0.01 µm / 0.005 µm

Refer to page 16

Refer to page 38

10

11

SERIES 542 ̶ Environment-Resistant TypeDIMENSIONS

Unit: mmAPPLICATION

Connector
Unit: mm

43

61.7
34

0
ø15 -0.011
M14×0.5

18.5
95(attachment thread
for thrust stem)

02ADB682
M18×1(208.3)

4.5

02ADN3710
ø18 -0.018
Clamp nut

84.1

12.3

114.7

30.7
75.7
6.9
(129.5)

14

StrokeCable length=2 m

Thrust stem

Battery flatness measurement

Stroke126Dimensions with an optional
thrust stem installed

8.6

13.8

21

(24.2)

Dimensions with an optional
thrust stem installedø14.7

542-196 / 542-197

542-19610.6 or longer

ø8

02ADB682
M9.5×0.5

M9.5×0.50 (attachment thread-0.009 for thrust stem)

46.9

ø9.5
Clamp nut
(13.3)(20.6)

0.6 20

Cable length=2 m

0-0.015(20.6)(screw top height)

61.7
34

Insertion depth check
Cable length=2 m

174

56.1

0.6 2043542-193Thrust stem
02ADB681• Air lifter
For 10 mm range models: 02ADE230
For 25 mm range models: 02ADE250
For 50 mm range models: 02ADE270
Note 1: Required air pressure: 0.2 to 0.4 MPa(With a 0.1 µm resolution type: 0.2 MPa)
Note 2: Spindle extends when air is supplied.

542-196 / 542-197(screw top height)

61.5
34

17.3

Unit: mm

Optional Accessories
542-193 / 542-194 /542-195

542-190

ø14.7

45.9
5
14.5
9.5
4

*2 A conversion plug is required.

(15.4)

0.6 14.8

HR10A-10P-10P (HIROSE)

ø14.7

542-193 / 542-194 /542-195(screw top height)

43• All models have the origin point signal output function to restore the origin point position after
recovery from problems such as overspeed.
• It can be connected to a compact counter (EJ counter) suitable for in-line use or building into a
device or a multifunctional counter (EH counter)*2 suitable for use in measurement rooms.

542-190 /542-191/542-192

ø14.7

542-190 /542-191 /542-192*1 10 mm range models (Actual value from in-house tests)

22

Connecting cable (2 m)

6.5
93.6

• High-accuracy gage head suitable for in-line and in-laboratory use.
• Assures the expected repeatability (2σ) in the full measurement range and the narrow-range
precision.
• Protection grade IP67G with sliding durability of 50 million times and more*1 and adoption ofhighly oil-resistant materials.

See video from here

26 or longer

Phase-A/B/Z
With origin point mark

43

LG100

0.8 + L/50
µm

1.5 + L/50 µm

0.5 µm (Arbitrary 20 µm range)
0.3 µm≤0.5 µm (at a constant reference point passing speed less than 300 mm/s in the same direction)

1.4 N or less

4.6 N or less

5.7 N or less

Measuring Contact point
force
horizontal

1.3 N or less

4.3 N or less

5.3 N or lessContact point
upwards
Position detection method
Maximum response speed
Output signal

1.2 N or less

4.0 N or less

4.9 N or less

Optical transmission-type Linear encoder
1,500 mm/s
400 mm/s
1,500 mm/s
400 mm/s
1,500 mm/s
90°phase difference, differential square wave (RS-422A equivalent)
500 ns
500 ns
500 ns
250 nsMinimum edge intervals
250 ns (4 MHz)
250 ns (4 MHz)
(2 MHz)(2 MHz)(2 MHz)(4 MHz)2 µm
Output signal pitch
4 µm
2 µm
0.4 µm4 µm
2 µm
0.4 µm
4 µm
Reference mark position Approx. 3 mm from contact point tip Approx. 5 mm from contact point tip (lowest rest point)(Phase-Z)(lowest rest point)
Mass
Approx. 260 g
Approx. 300 g
Approx. 400 g
Contact pointø3 mm carbide tipped (fixing screw: M2.5 (P=0.45) 5), standard contact point: 901312
Stem
ø8 mm
ø15 mmBearing
Linear ball typeOutput cable length
2 m (directly from casing)Plug: HR10A-10P-10P (HIROSE), Compatible receptacle: HR10A-10R-10S (HIROSE),
Connector
Compatible connector: HR10A-10J-10S (HIROSE)
Operating temperature
C (RH 20 to 80%, non-condensing)
0 to 50 °(humidity) ranges
Storage temperature
C (RH 20 to 80%, non-condensing)-10 to 60 °(humidity) ranges
Standard accessories
Wrench for contact point: 538610
Wrench for contact point: 210187

02ADN3710
ø15 -0.011
M14×0.50
ø18 -0.018
Clamp nut

(attachment thread
for thrust stem)

02ADB682
M18×1

6

4.5

• Rubber boot (spare)For 10 mm range models: 21HAA331
For 25 mm range models: 21HZA176
For 50 mm range models: 21HZA184
Note 3: Dimensions are shown in the external dimensions
drawing of the product.
• Thrust stem set:
For 10 mm range models: 02ADB680(Thrust stem: 02ADB681, Clamp nut: 02ADB682)
For 25 / 50 mm range models: 02ADN370(Thrust stem: 02ADN371, Clamp nut: 02ADB692)
This is a combination of thrust stem and a clamp nut.
• Spanner wrench:
For 10 mm range models : 02ADB683
For 25 / 50 mm range models: 02ADB693
If required spanner wrench is required for tightening.
If using multiple gages, a thrust stem set is required foreach gage and one spanner wrench.
• Extension cable
5 m: 21HZA197
10 m: 21HZA198
20 m: 21HZA199
Note 4: Connectable up to 3 pieces, 20 m at maximum.
• Conversion plug
Connection to EH-101P/102P : 21HZA195
Connection to EH-102Z: 21HZA196

29.6

Thrust stem

142

0.1 µm542-196 542-197
50 mm
1 µm
0.5 µmStroke1.5 + L/50 µm

542-195

51.5 or longer

0.8 + L/50
µm

1 µm

542-19425 mm
0.5 µm

18.5
95

0.1 µm542-193

8.6(24.2)

13.8

Stage positioning

21

1.5 + L/50 µm

542-192

124.9

1 µm

542-19110 mm
0.5 µmDimensions with an optional
thrust stem installed（18）542-190（50）

21HZA195 (Standard type)（17）

Order No.
Measuring range
Resolution
Measuring accuracy (20 ℃)
L=arbitrary measuring
length (mm)Small range accuracy
Repeatability: 2 (20 ℃)
Reference markrepeatability: (20 ℃)
Contact point
downwards(316)

SPECIFICATIONS（48）

21HZA196 (With origin point mark)12

13

SERIES 542 ̶ Slim Type

Enables real-time measurement and data management

Phase-A/B• Slimmer body with approx. 1/5 cross section compared with 542-190 (LG100).
• High-accuracy gage head suitable for in-line and in-laboratory use.
• Assures the expected repeatability (2σ) in the full measurement range and the narrow-range
precision.
• Protection grade IP67G with sliding durability of 100 million times and more*1 and adoption ofhighly oil-resistant materials.

CounterIndustrial interface

See video from here

Connector
Unit: mm
20.4

30

*1 Actual value from in-house tests.

• It can be connected to a compact counter (EJ counter) suitable for in-line use or building into a
device or a multifunctional counter (EH counter)*2 suitable for use in measurement rooms.
*2 A conversion plug is required.

HR10A-10P-10P (HIROSE)

Measurement

43 （500）（79.3）

LG200

14.7

Optional Accessories• Air lifter: 02ADE230
Note 1: Required air pressure: 0.2 to 0.4 MPa(With a 0.1 µm resolution type: 0.2 MPa)
Note 2: Spindle extends when air is supplied.

542-186/542-187/542-188

SPECIFICATIONS
Order No.
Measuring range
Resolution

DIMENSIONS

Unit: mm
542-186/542-187/542-188

Thrust stem

02ADB681
14.5
9.5
4

ø9.5 −00.015
Clamp nut

44.9

02ADB682
M9.5×0.5

12(13.3)

14

Thrust stem set/Spanner Wrench

ø12

5LG200 Series

PLC*1 USB output of EH counter is specifically for SENSORPAK.
*2 A conversion plug is required for connecting to EH counter.
*3 Conventional gages can be connected using conversion cables.
(Please contact us for details of connectable gages.)• Rubber boot: 21HAA331 (spare)• Thrust stem set: 02ADB680(Thrust stem: 02ADB681, Clamp nut: 02ADB682)
This is a combination of thrust stem and a clampnut.
• Spanner wrench: 02ADB683
If required spanner wrench is required fortightening.
If using multiple gages, a thrust stem set isrequired for each gage and one spanner wrench.

Wrench for contact point: 538610

Standard Accessories• Extension cable
5 m: 21HZA197
10 m: 21HZA198
20 m: 21HZA199

73.1

RS-232125.5

2-phase square wave

6.5

PC

ø8 −00.009

14

Industrial IF/IO

Rubber bootUSB

Attachment thread for thrust stem

RS232C / USB*1

1 µm(1.5 + L/50) µm L=arbitrary measuring length (mm)M9.5×0.5

Compact-type counter EJ Series*3542-186

Small range accuracy
0.5 µm (Arbitrary 20 µm range)
Repeatability: 2 (20 ℃)
0.3 µmContact point
0.8
N or lessdownwards
Measuring Contact point
0.75 N or lesshorizontal
force
Contact point
0.7 N or lessupwards
Position detection method
Optical transmission-type Linear encoder
Maximum response speed
400 mm/s
1500 mm/s
Output signal
90°phase difference, differential square wave (RS-422A equivalent)
Minimum edge intervals
250 ns (4 MHz)
500 ns (2 MHz)
Output signal pitch
0.4 µm
2 µm
4 µm
Mass
Approx. 210 g
Contact pointø3 mm carbide-tipped (fixing screw: M2.5 (P=0.45) 5), standard contact point 901312
Stem
ø8 mm
Bearing
Linear ball typeOutput cable length
Approx. 2.5 m (directly from casing)Connector
Plug: HR10A-10P-10P (HIROSE), Compatible receptacle: HR10A-10R-10S (HIROSE),Compatible connector: HR10A-10J-10S (HIROSE)
Operating temperature
0 to 50 °C (RH 20 to 80%, non-condensing)(humidity) ranges
Storage temperature–10 to 60 °C (RH 20 to 80%, non-condensing)(humidity) ranges

Dimensions with a thrust stem installed

System Configuration

Multi-functional counter
EH counter*2

542-187
10 mm
0.5 µm

0.1 µm(0.8 + L/50) µm
Measuring accuracy (20 °C) L=arbitrary
measuring length (mm)Data management

LG100 Series

542-188

10.6 or longer (stroke)

PLC

Note 3: Connectable up to 3 pieces, 20 m at maximum.

• Conversion plug
Connection to EH-101P/102P: 21HZA195
Connection to 542-073 : 21HZA196
Note: Connectable to EH-102Z but the function ofreference point detection is disabled.

Custom order example• Measuring force change• Cable length change (less than 2 m)
• Connector change

15

SERIES 542 ̶ High-accuracy/resolution TypeSPECIFICATIONS

LGH

Type
Order No.

Gage head 542-715

250

300

Gage
mounting
hole
ø15H7

ø50

100
270
(350)

110

80

Unit: mm

• Release with damper: 971753
500
43
12 (stroke)

ø24• This model is equipped witha newly developed ultra-highprecision transmission typelinear encoder, achieving theoutstanding resolution of
0.005 µm (5 nm).
• Exceptional measuring accuracyof 0.1 µm has been attained
over the wide measuring
range of 10 mm. This series
Gage head 542-720 is most suited for calibration/
evaluation of master gages
where its wide measuring
range is a great advantage.

Measuring stand: 971750

25• This model is equipped with a newly
developed optical reflection-typelinear encoder, achieving an excellent
resolution of 0.01 µm, a measuring
accuracy of 0.2 µm and a measuring
range of 10 mm at a low price.
• Maximum operating speed has been
improved by a factor of 2.8 times(250 mm/s → 700 mm/s) while
maintaining very high accuracy.

Optional Accessories

34-175 (Max. measuring range LGH-1010: 0 -137 mm)• This series has achieved very high accuracy combined with a resolution of 0.01/0.005 µm (according
to model), practically equivalent to that of a laser interferometer, and a wide measuring range of
10 mm.
• A compact body design makes a significant contribution to a downsizing of this gage itself, which
is best suited for calibration/evaluation of master gages as well as measurement of high-precisionparts and as a length measuring sensor incorporated into high-precision positioning/control units.
• A low measuring force model is available for those applications where measurement of easily
deformed or damaged workpieces is required.
• Every LGH Series gage is bundled with a dedicated counter.

Return-speed adjustment knob

Unit: mm

• I/O output connector: 02ADB440

Order No.

TYPICAL APPLICATIONS
Master gage calibration/evaluation

Inspection of high-precision parts• SENSORPAK：No.02NGB070*Refer to page 38 for details.

Needle contact-point mounting example

DIMENSIONS

Unit: mm

542-721

138

148.2
137

7.5

68

Fixation of power cord

156 (Stand equipped)

97

40

75.1

542-721 (low measuring force)
LGH-0510C-B-EH 10
Rubber boot not equipped 20
Carbide sphere SR5
542-720 (Standard)
LGH-0510-B-EH
12005818

Approx. 10°(Tilt angle when stand equipped)(Stand equipped)

144* Minimum bending radius or minimum dressed dimension

16

19.4

(Rubber boot equipped)

40

8525(Stem length)

145.9

(14)

542-716 (low measuring force)
10
LGH-1010C-B-EH
Rubber boot not equipped
20
Carbide-tipped, Sø3542-715 (Standard)
LGH-1010-B-EH
901312

18

Cable
(2 ｍ)

Connector for lifting cable0ø15h6 -0.011(Stem dia.)

60.9

148.3

Connector(detachable)
Connector for lifting cable0ø15h6 -0.011
Stem dia.
for fixation

63.3
10.5 25

45.4

11.2

Cable Assy
(2 m)

(Stroke length)
10.5

85

ø10.4
ø4.8

(37.6) (25)*
R20

Dedicated counter (set)72542-716• Rubber boot: 238772(Spare for 542-715 and 542-720)

542-715 (Standard)

542-716 (Low measuring force)

Measuring range
10 mm
Resolution
0.01 µm (0.05 µm, 0.1 µm, 0.5 µm, 1 µm can be selected from the counter)
Measuring accuracy (20 °C)*1
0.2 µmRepeatability (20 °C)*1
0.1 µm (2σ)
Retrace error (20 °C)*1
0.1 µmContact point
0.65
N
or
less
Approx. 0.12 N
downwards
Measuring Contact point
0.55 N or lessNot applicableforce
horizontal
Contact point
0.45 N or lessNot applicableupwards
Position detection method
Optical reflection type linear encoder
Detectable operation speed
In normal measurement: 700 mm/sec; for peak detection: 120 mm/sec
Mass of gage head
Approx. 370 g
Contact point
Carbide tipped, Sø3 mm (M2.5 (P=0.45) 5 mm), standard contact point 901312
Stem
ø15 mmBearing
Linear ball typeOutput cable length
Approx. 2 m
Operating temperature/
°
0
to
40
C
(Reference
temperature
20 °C)/20 to 80% RH (non-condensing)humidity ranges
Storage temperature/humidity ranges–10 to 60 °C/20 to 80% RH (non-condensing)Counter Specifications±999.99999 mm
Display range
FunctionsZero-set, preset, direction switch, tolerance judgment (3 steps/5 steps), RS-LINK
Peak hold function
Yes
Interface
RS-232C, USB (only for SENSORPAK) , Digimatic (Printer: DP-1VA LOGGER)*3, I/O Connector
・RS-232C: counting data ・Digimatic output: counting data*3
External output
・I/O connector: counting data (simplified BCD), tolerance judgment result, simplified analog output
External control
Zero-set, preset, data hold, peak measurement mode selection, peak clear
Power supply
Suppplied AC Adapter, or +12 to 24 V DC, max. 700 mA
Power consumption
8.4 W (max. 700 mA), Ensure at least 1 A power supply per unit.
Mass of counter
Approx. 900 g (AC Adapter excluded)
Wrench for contact point, rubber boot, stand, washer (for counter), AC Adapter, AC cord,Standard accessories
DC plug, user's manual, inspection certificate
Type

Dedicated counter

Resolution 0.01 µm/Accuracy 0.2 µm model

Resolution 0.005 µm/Accuracy 0.1 µm model
542-720 (Standard)

542-721 (Low measuring force)

Measuring range
10 mm
Resolution
0.005 µm (0.01 µm, 0.05 µm, 0.1 µm can be selected from the counter)
Measuring accuracy (20 °C)*1
0.1 µmRepeatability (20 °C)*1
0.02 µm (2σ)
Retrace error (20 °C)*1
0.05 µm
Contact point
0.65
N
or
less
Approx. 0.1 N
downwards
Measuring Contact point
0.55 N or lessNot applicableforce
horizontal
Contact point
0.45 N or lessNot applicableupwards
Position detection method
Ultra-high accuracy transmission type linear encoder
Detectable operation speed
In normal measurement: 250 mm/sec
Mass of gage head
Approx. 370 g
Contact point
Carbide sphere SR5 (M2.5 (P=0.45) 5 mm), standard contact point 120058
Stem
ø15 mmBearing
Linear ball typeOutput cable length
Approx. 2 m
Operating temperature/
°
15
to
25
C
(Reference
temperature
20 °C) /30 to 60% RH (non-condensing)humidity ranges°
Storage temperature/humidity ranges–10 to 60 C/20 to 80% (non-condensing)*2Counter Specifications±99.999995 mm
Display range
FunctionsZero-set, preset, direction switch, tolerance judgment (3 steps/5 steps), RS-LINK
Peak hold function
No
Interface
RS-232C, USB (only for SENSORPAK), Digimatic (Printer: DP-1VA LOGGER)*3, I/O Connector
・RS-232C: counting data ・Digimatic output: counting data*3
External control
・I/O connector: counting data (simplified BCD), tolerance judgment result, simplified analog output
External control
Zero-set, preset, data holdPower supply
Suppplied AC Adapter, or +12 to 24 V DC, max. 700 mA
Power consumption
8.4 W (max. 700 mA), Ensure at least 1 A power supply per unit.
Mass of counter
Approx. 900 g (AC Adapter excluded)
Wrench for contact point, rubber boot, stand, washer (for counter), AC Adapter, AC cord,Standard accessories
DC plug, user's manual, inspection certificate*1 Applies when used with counter.
*2 The storage temperature/humidity ranges after unpacking are the same as the operating temperature/humidity ranges.
*3 Digimatic output shall be up to 6 digits of data. For data of 7 digits or more, all digits will not be output to the display.

17

SERIES 575 ̶ Digimatic output Type

Head Specifications (Accessories)

LGS-1012P

Optional Accessories
Air Lifter

Digimatic• ABSOLUTE electrostatic capacitance type encoder makes it
possible to maintain the reference point even when the poweris switched off.
• Excellent protection against dust and splashing water(IP66) on the factory floor.

• Advances or retracts the spindle of a gage head by using a pneumatic cylinder.
• Automatic measurement is possible by using a solenoid valve.
Air lifting unit LGS
For 10 mm LG100/LG200: 02ADE230

Connector
Unit: mm

Unit: mm

37
8.6

26

Unit: mm575-303

Unit : mm

0.57

3/8

1.46

0.25

(2.03)

7.3

Rubber bootAir supply ON state

For 25 mm LG100: 02ADE250

For 50 mm LG100: 02ADE270

6.5
13

28
54.4
11.4

8.8

6

15
(cylinder stroke)

15

14

ON

Extension rod(accessory)

For LGS: 903594 (mm), 903598 (in)Note: When connecting an extension cable, an
SPC cable extension adapter is required.

OFF

19
37

Air supply OFF state

Unit: mm

Unit: mmWith LG100 Series attached

Custom order example

With LG100 Series attached• Measuring force change• Cable length change• Connector change

Speed controller

Speed controller

Air supply hose

Air cylinder withbuilt-in magnet
SMC-made CDJ2 Series(Tube ID: 16 mm)[Accessories]
Hex-socket head bolt M5×25
Washer

14.8
18

11

21
46

12.5 14

LG clamp bolt

OFF 6 6hex-socket( withhead M5×12 )

6.3

ON

O-ring (accessory)

4

Guide (accessory)
Plain washer (accessory)

ø6
15
7

OFF

9.1

15
30
(cylinder stroke)
41.5
77.6

12.5 14

4.5
LG clamp bolt

25 or more (stroke)（158）[Accessories]
Hex-socket head bolt M5×25
Washerhex-socket( withhead M5×12 )Air supply ON state

SMC-made band-mounttype auto-switch is available.
E.g.: D-C73 (SMC)（183.1）（109）（119.2）Air cylinder with built-in magnet
SMC-made CDJ2 Series(Tube ID: 16 mm)

2042

Air supply hose

SMC-made band-mount typeauto-switch is available.
E.g.: D-C73 (SMC)ON

Guide (accessory)
Plain washer (accessory)
O-ring (accessory)

Air supply OFF state

11
18

21
46

Air supply OFF state

SPECIFICATIONS
0.24(5.66)

2.61

66.2
15.2

6.2
(53.9)

38.7

66.2(146.1)

6.2

146.1

15.2
38.7

0

10 or more (stroke)(10.5)

42

Air supply ON stateø8ø8-0.008
0-0.009（84）（83.6）

31

14.4

0.30

[Accessories]
Hex-socket head bolt M5×25
Washer

14.8

0.98
0.69

SMC-made band-mount typeauto-switch is available.
E.g.: D-C73 (SMC)

1
ø6

1.02

35

1.38

)

（51）
50 or more (stroke)25
25
17.4 17.47.6 7.6
ø10.9

35

(

7

• Rubber boot (spare): 238774• Air lifter (metric): 903594• Air lifter (inch): 903598• SPC cable extension adapter:
02ADF640• Extension cable for Digimatic gages (0.5 m):
02ADD950• Extension cable for Digimatic gages (1 m):
936937• Extension cable for Digimatic gages (2 m):
965014（25.5）

575-313

LG clamp boltwith hex-socket
18 head M4×12

Optional Accessories

DIMENSIONS
575-303

71.5
(95)

ø12
ø13

15
7

Order No.
575-313
Measuring range
0.5 inResolution
0.0005 inMeasuring accuracy (20 °C)
0.0008 inContact point downwards
2 N or less
Measuring Contact point horizontal
1.8 N or lessforce
Contact point upwards
1.6 N or lessPosition detection method
ABSOLUTE electrostatic capacitance type linear encoder
Response speed
Unlimited (not applicable to scanning measurement)
OutputDigimatic code
Mass
Approx. 190 g
Protection Level
Equivalent to IP66 (only gage head)Contact pointø3 mm carbide tipped (fixing screw: 4-48 UNF), standard contact point: 21BZB005
Stem
ø9.52=3/8 in DIA
Bearing
Plain typeOutput cable length
2 m (directly extended from the main unit)
Operating temperature (humidity) ranges
0 to 40 °C (RH 20 to 80%, non-condensing)C (RH 20 to 80%, non-condensing)
Storage temperature(humidity) ranges–10 to 60 °26

Air cylinder with built-in magnet
SMC-made CDJ2 Series(Tube ID: 10 mm)

ø6Order No.
575-303
Measuring range
12.7 mm
Resolution
10 µm
Measuring accuracy (20 °C)
15 µm
Contact point downwards
2.0 N or less
Measuring Contact point horizontal
1.8 N or lessforce
Contact point upwards
1.6 N or lessPosition detection method
ABSOLUTE electrostatic capacitance type linear encoder
Response speed
Unlimited (not applicable to scanning measurement)
OutputDigimatic output
Mass
Approx. 190 g
Protection Level
Equivalent to IP66 (only gage head)Contact pointø3 mm carbide-tipped (fixing screw: M2.5 (P=0.45) 5), standard contact point: 901312
Stem
ø8 mm
Bearing
Plain typeOutput cable length
2 m (directly extended from the main unit)
Operating temperature (humidity) ranges
0 to 40 °C (RH 20 to 80%, non-condensing)C (RH 20 to 80%, non-condensing)
Storage temperature (humidity) ranges–10 to 60 °18

Air supply hose

20

SPECIFICATIONS(17.2)

Speed controller

11.555(cylinder stroke)
15
66.5
95.9

575-303

With LG100 Series attached state

Order No.
90359490359802ADE230
02ADE250
02ADE270
Stroke10 mm
0.4 in
10 mm
25 mm
50 mm
Compatible gage head
LGS-1012P
LG100/LG200 Series (10 mm only)
Air supply
0.5 MPa
0.2 to 0.4 MPa (With a 0.1 µm resolution type: 0.2 MPa)*
Mass
60 g
150 g
250 g
300 g
* An overspeed error may occur depending on the usage environment and conditions. In case of an error, adjust the air pressure and flow rate to be used.
Unit: in575-313

Unit : inch

19

Head Specifications (Accessories)

Head Specifications (Accessories)

Gage Head Mounting Fixtures

Gage Head Mounting Fixtures

Plain Stem

Example of plain-stem mounting

The plain stem has the advantage of wider application and slight positional adjustment in theaxial direction on final installation, although it does requires a split-fixture clamping arrangement
or adhesive fixing. However, take care so as not to exert excessive force on the stem.

• The recommended clamping torque is 0.4 to 0.5 Nm. (Example1)
Overly tightening the stem will prevent smooth movement of the spindle.
Example 1

16

7.5
(4.5)

15 (9)
7.5(4.5)

Clamp nut: 02ADB682
Wrench:02ADB683

A−A′
sectionø4.5, ø7.5 depth 4.4

B

K

A

M

F

D

J

2-L

H
C

G
E

I

A-2
B-2
Order No. 303560 303569
A
ø9.5
ø9.5
B
9
14.5
C
15
20
D
20
30
E
23
35
F
5
7
G
11
16
H
8
12
I
1.5
3.25
J
32.5
42.5
K
4.5
7.25
L
ø3.4
ø4.5
M
M3 0.5 M3 0.5

Unit: mm
B

K

I

A

Unit: mmF

ø9.5 8.5

G546343D

ø9.5 15

C

5462882-J
H

E

Unit: mm

F

H

D

J

C

2-I

B
K

M

D
J

2-L

A

E
G

A

B

C

I

Unit: mm

A-4
B-4
Order No. 303562 303571
A
ø9.5
ø9.5
B
9
14.5
C
15
15
D
20
22.5
E
40
60
F
3
5
G
30
40
H
15
20
I
ø3.4
ø4.5
J
M3 0.5 M3 0.5

F

H
E

G

A-6
B-6
Order No. 303564 303573
A
ø9.5
ø9.5
B
9
14.5
C
30
40
D
42.5
52.5
E
4
6
F
15
18
G
10
15
H
15
20
I
4.5
7.25
J
ø3.4
ø4.5
K
M3 0.5 M3 0.5
A-8
B-8
Order No. 303566 303575
A
ø9.5
ø9.5
B
9
14.5
C
15
15
D
15
20
E
25
40
F
8.5
8.5
G
7.5
10
H
10
20
I
10
15
J
32.5
40
K
4.5
7.25
L
ø3.4
ø4.5
M
M3 0.5 M3 0.5

5
14.5
9.5
4

(44.9)

02ADB682
M9.5×0.5

12

For 10 mm LG100

For 10 mm LG200

12(13.3)(13.3)

Components Thrust stem: 02ADN371
Clamp nut: 02ADB692
Wrench:02ADB693

Note: A mounting section with a thickness of 10 through 12 mm is suitable.
With the use of a thrust stem and clamp nut, a gage fixture can be arranged simply by drilling an 18
mm dia. hole. A gage can be secured firmly with ease with this arrangement.
IMPORTANTIn attaching a thrust stem, be sure to fix the stem first with a dedicated wrench(02ADB693). An excessive force applied between the gage main body and stem maycause damage to a gage.
NOTE
Both the dedicated wrench (02ADB693) and M14 0.5 threaded section are for mounting a thruststem. Do not use them for any purpose other than mounting a thrust stem.

Unit: mmThrust stem

02ADN371(Optional accessory)0ø18 -0.018

Clamp nut

02ADB692(Optional accessory)

M18×1(24.2)
21• To mount a gage head with an 8 mm diameter stem, use a 9.5 mm diameter stem bushing.

Clamp nut

For 50 mm LG100

Components Thrust stem: 02ADN371
Clamp nut: 02ADB692
Wrench:02ADB693
Thrust stem

Note: A mounting section with a thickness of 10 through 12 mm is suitable.
With the use of a thrust stem and clamp nut, a gage fixture can be arranged simply by drilling an 18
mm dia. hole. A gage can be secured firmly with ease with this arrangement.
IMPORTANTIn attaching a thrust stem, be sure to fix the stem first with a dedicated wrench(02ADB693). An excessive force applied between the gage main body and stem maycause damage to a gage.
NOTE
Both the dedicated wrench (02ADB693) and M14 0.5 threaded section are for mounting a thruststem. Do not use them for other purpose than mounting a thrust stem.

02ADN371

Unit: mm

(Optional accessory)0ø18 -0.018

Clamp nut

02ADB692(Optional accessory)

M18×1(24.2)
21

Split-clamp mounting fixtures

02ADB681
0ø9.5 -0.015

M9.5×0.5

4.5

For 25 mm LG100

02ADB68218.5
9515 (9)

Clamp nut

(84.1)

A′
M4×0.70
ø9.5 -0.015

4.5

A−A′
sectionThrust stem

02ADB681

18.5
9
5

30
ø8H7 ＋00.015

2.
1.

0
ø10h7−0.015

ø10h7＋0.015
0Unit: mmThrust stem

(124.9)

Unit: mm
15

15

10

Note: A mounting section with a thickness of 6 through 10.5 mm is suitable.
With the use of a thrust stem and clamp nut, a gage fixture can be arranged simply by drilling a 9.5mm dia. hole. A gage can be secured firmly with ease with this arrangement.
IMPORTANTIn attaching a thrust stem, be sure to fix the stem first with a dedicated wrench(02ADB683). An excessive force applied between the gage main body and stem maycause damage to the gage.
NOTE
Both the dedicated wrench (02ADB683) and M9.5 0.5 threaded section are for mounting a thruststem. Do not use them for any purpose other than mounting a thrust stem.

5

1.

Slit set at 90 degrees
to setscrew

15 (9)7.5
A (4.5)

14.5
9.5
4

20

(45.9)

ø8H7＋0.015
02.

WrenchThrust Stem for
10 mm LG100/LG200

For 10 mm LG100/LG200 Components Thrust stem: 02ADB681

30
A′

M4×0.7

Example 2

Clamp nut

Unit: mm15

Split-clamp mounting

A thrust stem is available as an option for the LG100, and LG200 gage
heads. Installing a thrust stem on the stem allows direct mounting, simply
by drilling a hole in a section of suitable thickness on the fixture.

6

6

A

Thrust stem

Mounting with a thrust stem

SPECIFICATIONS
Compatible gage
Thrust stem set*Thrust stem
Order No.
Clamp Nut
WrenchGage mounting hole diameter (nominal)
Recommended plate thickness (mounting section)

LG100/LG200 10 mm

LG100 25/50 mm

02ADB680(02ADB681)(02ADB682)
02ADB683
ø9.5 mm
6 to 10.5 mm

02ADN370(02ADN371)(02ADB692)
02ADB693
ø18 mm10 to 12 mm* A thrust stem set is comprised of a thrust stem and clamp nut. A dedicated wrench is required for tightening.
To use more than one gage, purchase thrust stem sets for the number of gages plus a special spanner.

20

21

Head Specifications (Accessories)

Head Specifications (Accessories)

Optional Accessories
Measuring standGranite comparator standBSG-30HX 215-156-10
Base material
GraniteBase size (mm)W 250 D 300 H 95
Base flatness
3.5 µmFine adjustment
Square thread
Stem size (mm)ø20, ø9.53, ø8 with bush
LG100 25 mm/50 mm. When using the stand at
25 mm/50 mm stroke, separately obtain a ø15 bushing(21JAA331).

Lifting lever

Order No.
21HAA331
21HZA176
21HZA184
238774SPECIFICATIONS
Compatible Gage head
LG100/LG200 (for 10 mm range model)
LG100 (for 25 mm range model)
LG100 (for 50 mm range model)
LGS-1012P

Order No.
02ADG181
137693Extension signal cable for LG100/LG200
A signal cable from the head to the receiver circuitry can be extended.
Maximum number of connectable cables is limited to 3, and the maximum total
extension length is limited to 20 m.
Custom order: Flexible cable type
Custom order: Customizable cable length

Base material

Hardened steel,Grooved measuring stage
W 179 D 255 H 89
（Measuring stage □150 H25)
Base flatness
2.3 µmFine adjustment
Square thread
Stem size (mm)ø20, ø9.53, ø8 with bush
LG100 25 mm/50 mm. When using the stand at
25 mm/50 mm stroke, separately obtain a ø15 bushing(21JAA331).
Base size (mm)Extension cable for Digimatic gages
Order No.
02ADD950936937965014

Cable length
0.5 m
1m
2m

Gage mounting
direction25
15±0.2

ø2-5.5 through-holeø9.5 w/countersinking depth of 5.5

Mounting
reference surface

25

Comparator standBSC-30HX 215-505-10
Attachment holder
Lifting lever

Holder A 971751 Mass: 250 g
Holder B 971752 Mass: 180 g

Mounting
reference surface

C2

Holder mounting
surface

Unit: mm
2-M5×0.8, depth1025Attachment holder

Useful when the LGH is mounted on an alternate fixture rather than the regularmeasuring stand.

25
37± 0.2
50

Example of attaching the lifting lever

SPECIFICATIONSMounting holder A, B

12.5
M4×0.76 hex-socket head bolt(for clamping the gage)

Gage mounting
direction

C2

M4×0.76 hex-socket head bolt(for clamping the gage)
23
45

Lifting lever and attachment holder
This holder is attached between the spindle and the contact point for fixing the lifting lever.

23
45

Spare rubber bootProtects the spindle bearing of a gage head from dust.

14.5

Optional Accessories

ø15H7(Gage mounting hole ID)

Holder A (for mounting on the upper surface)

Holder mounting
surface

ø15H7(Gage mounting hole ID)

Holder B (for mounting on the lower surface)

Measuring stand for Laser Hologage
971750This LGH stand greatly helps the gage to achieve high accuracy.

Mass: 25 kg

Release with damper

Unit: mm300

250

Spindle-lift release for the LGH. A sudden drop of the spindle is prevented by the
return-speed adjustment knob.

971753 Mass: 50 g
Unit: mm

500
43

110
ø50

ø24

270

Return-speed adjustment knob

80

(350)

ø15H7 forgage mounting
25

Cable length
5m
10 m
20 m

34 to 175

Order No.
21HZA197
21HZA198
21HZA199

100

SPECIFICATIONS

12 (stroke)

Digimatic cable extension adapter
02ADF640 Mass: 15 g
This adapter can be used when the LGS-1012P gage head is to be connected to adisplay unit where the provided cable length is not sufficient for this connection.
・Available for LGS-1012P.
・Available for EC-101D, EH-102D・Do not join more than one piece of this product together for use.
Tie-lap (standard accessory)

36
17

10

20

.3

0

Unit: mm22

Cable extension adapter

23

Head Specifications

Head Specifications

Differential square-wave
Model (Resolution)
Output signal
Signal pitch
Minimum edge interval
Output signal level
Plug typeCompatible socket
Recommended receiverGage connecting cable length
Extension cable length
Error output
Voltage / Consumption

Digimatic code

LG100/LG200 (0.1 µm)

LG100/LG200 (0.5 µm)
LG100/LG200 (1 µm)
90°phase difference, differential square wave (RS-422A equivalent)
0.4 µm2 µm
4 µm
250 nsec
500 nsec+5 V (4.8 to 5.2 V, 80 mA) øA, øA, øB, øB: TTL, line driver output, AM26LS31 or equivalent
HR10A-10P-10P (HIROSE)
HR10A-10R-10S (HIROSE)
Differential input, line receiver, AM26LS32
2 m; directly connected to the gage
Max. 20 m (extension cables of 5, 10 and 20 m in length are available)
See the "Timing chart (occurrence of error)" below+5 V (ripple voltage 0.2 Vpp max.)/80 mA

Output pin assignment

Timing chart (normal)

1) Output plug HR10A-10P-10P (HIROSE)
2) Pin assignment
Pin No. Assignment Pin No. Assignment
1
8
1
PA
7
N.C.
7
2
PA
8
PZ
2
3
N.C.
9
+5
V*
10
9
4
PB
10
GND
3
6
5
PB
Shell
FG
4
5
6
N.C.

1) Real-time pulse output (Phase-A wave advances when the spindle is retracted.)* Power supply to the gage head

1

9

2
10
Gage head side

9

1

Pin No.
SignalI/O
Description
̶
1
GND
Signal ground2
DATA
Output Measurement data-output terminal
3
CK
Output Synchronized clock-output terminal
̶
4*
N.C.
Not used
5
REQ
Input Input for data transmission request from external device
6*
ORIG
Input Input for absolute-origin setting signal
̶
7*
N.C.
Not used̶
8*
N.C.
Not used̶
9*+5 VPower supply (+5 V±10%)10*GND (F.G.) ̶ Frame groundPhase B
Tr (min.) 1 µm/ 0.5 µm (resolution)

1. Output condition: Spindle speed≤250 mm/s*2
2. Minimum edge-to-edge interval=Tr
3. Output delay time*1: Max. 1 µs

Timing chart (occurrence of error)

2. I/O electrical specifications• Output terminal format: CK, DATA
N-channel open drain
Maximum output current:
400 µA max. (when VOL=0.4 V)
Output withstand voltage: -0.3 V to 7 V・CK, DATA

Xz

Phase B

△ Xz: Repeatability of origin point position (edge reproducibility) ±σ=±0.5 µm

・REQ, ORIG
Vdd

Phases A and B are synchronized (Edges change simultaneously)(at a scale travel speed less than 300 mm/sec in the same direction)
Xz: Pulse width of origin point signals = Approx. 40 to 60 µm (reference)øZ with origin point signals is only output.
Minimum edge-to-edge interval/pulse width under each condition
Tr
Te
Model
Resolution
Tr (real-time output)
Te (error output)
1 µm
0.4 µs0.4 µsLG100
0.5 µm
0.2 µs0.4 µs0.1 µmTb（最小）→1µm/0.5µm（最小表示量）

1. Output condition: Gage heads will identify an error under the following
conditions and produce an output as described above.
• Gage response speed*3 < Spindle speed• At a disturbance such as interference, vibration, etc.
2. Minimum width of output pulses=Te
A相*1 Output delay
time: Time until the counting pulse catches up to the spindle position.
*2 The actual limit of real-time pulse output will be depreciated to this value.
This is because
actual detection signals unavoidably contain acceleration
B相components in association with the spindle motion as well as error components
from a little noise included in the signal itself. As a result, some burst pulses at
a speed below the idealTe（最小）conditions (i.e. ideal signal form at constant speed) may
be generated.
*3 Gage respond speed: Refer to the specifications section in the User's Manual.

［ IMPORTANT ］• Since any output during an error condition cannot be used as the attribute data, it isnecessary to detect the error condition at the reception circuitry side.
• It is recommended to design user circuitry based on an IC chip that is capable ofcounting at 5 Mcps (equivalent to square wave of 1.25 MHz) or greater.

CMOS
input

For Vcc=5 V system
R1, R2=22 K ±10%
C=330pF±20%

Vcc
R1

Te

B相 A
Phase

• Input terminal format: REQ, ORIG
Pull-up CMOS inputInternal power supply voltage: Vdd= 1.35 to 1.65 V
Pull-up resistance: R1=10 to 100 KΩ
"H" level input voltage: VIH=1.1 V min.
"L" level input voltage: VIL=0.3 V max.

Recommended external I/F

R2

△Xz

Sumitomo 3M: V Low-Proheader
Model: 7610-5002XX or equivalent

d2

d3

d4

d5

d6

d7

ALL "F"d8

d9

d10 d11 d12 d13

Measured value
Sign (+: 0, -: 8)
Decimal point (0-5) e.g. 0→000000.
1→00000.0
5→0.00000
Unit (mm: 0, inch: 1)• Data is output as 13-digit (52-bit) based on 4 bits=1 digit.
• Data is output in order from d1 to d13. Each digit is output in the order of LSB toMSB.

4. Timing chart

t5

t6

t7

REQ
CK
DATA
t1 t2 t3 t4
t8

ORIG
Absolute origin
setting

activeCompleted

t10
t11

A相

△Xz

d1

・Compatible socket:

102Counter side

Phase BøZ

3. Data format* LGS uses a unique specification.
All others use the common Digimatic output specification (10-pin, square).

Phase A

LG100 origin point mark applied Timing chart (normal)
Phase A

1. Pin assignments and signals

R1

Tr

C

Tr=NPN open-collector or N-channel open drain (2SC2855, etc.)"L" level output voltage VOL=0.2 V max. (IOL=10 mA, etc.)"H" level leakage current: IIK=2 µA max. (at VOH=5.5 V)

Question

What is the absolute
position origin point?

max.
2 sec
̶
̶
̶
̶
̶
̶
̶

74HC14, etc.

Note: Since the power supply voltages are different between the gage side and the external
device side, be sure to use an open collector or open drain circuit. Do not use CMOS
output or similar.

Q

Standard (for reference)
Symbol
min.
t1*
0
t2
15 µs
t3
100 µst4
100 µs
t5
0
̶
t6*
̶
t7*
̶
t8*

A

LGS
Symbol
t1*
t2
t3
t4
t5
t6*
t7*
t8*
t10*
t11*

min.
30 µs
15 µs
100 µs100 µs
0 µs
̶

max.
95 ms
̶
̶
̶
̶

100 µs̶

100 µs
̶

30 ms

1.5 s
̶

̶

4s

Note 1: The specifications indicated by an asterisk (*) are applicable only to LGS. All other
Digimatic output specifications are common to all models.
Note 2: Read data only when CK is at the "L" level.
Note 3: Do not input REQ signal (fixed at "H") while the absolute origin is being set (during t11).
Note 4: If t5, t6 and t7 are satisfied and REQ is continuously input, an output is obtained fromLGS at intervals of approximately 95 ms.
Note 5: Start inputting ORIG and REQ after two or three seconds have elapsed (the estimatedtime required for internal circuit/sensor to stabilize) following power-on.

Answer

The absolute position origin point is known as the origin point (0 point) that will never vanish even when power isturned off. The LGS Series is equipped with the absolute scale (electrostatic capacitance type ABS scale) that can set
the absolute position origin point, thus always outputting the contact point position in reference to the last origin
point when power is turned on again. This removes the necessity for adjustment with the master every time power isturned on and contributes significantly to automation of measurement.

capacitance type ABS scale device)
Absolute Scale Device (Electrostatic• Patent registered (Japan, USA, UK, Switzerland, Germany, Sweden)• An absolute address is applied to individual absolute scales inside themain scale just like rail ties are numbered. A measured value is displayedby reading this absolute address from a slider position.

• The system uses 3 scales with a different wavelength while applying an absolute address on each scale.
• Coarse scale(COA)• Medium scale(MED)• Fine scale
(FIN)

24

COA

One cycle 430.08 mm
Resolution 3.36 mm

MED

One cycle 26.88 mm
Resolution 0.21 mm

FIN

One cycle 1.68 mm
Resolution 0.01 mm

25

Counter Specifications

EJ-102N Counter, Interface Unit: CC-Link, PROFINET, EtherNet/IP, EtherCAT, USB
Counter unit
EJ-102N

CC-LinkPROFINETInterface unit
EtherNet/IP

EtherCAT

USB

Image of mounting

Phase-A/B/Z
With origin point mark21HZA264
Interface unit EtherCAT
EtherCAT
POWER (green), RUN (green), ERROR (red),User Interface
L/A IN (green), L/A OUT (red), EJ-CONNECT (green)
Common protocols for USB and EtherCAT
Readout of current value, Current value hold (software
Functionshold), Parameter setting on EJ counter, Tolerance judgment
value settings, Preset valuesettings, preset/zero-set clear,peak clear, error clear
Power is supplied from EJ-102N (542-080/542-081)
Power supply(Cannot be charged via USB)
Operating temperature (humidity) ranges
0 to 50 °C (RH 20 to 80%, non-condensing)
Storage temperature (humidity) ranges-10 to 60 C (RH 20 to 80%, non-condensing)Order No.
Model
Applicable interface

21HZA149
Interface unit USB
USB 2.0 Full Speed
POWER (green)
Readout of current value, Current value hold (softwarehold), Parameter setting on EJ counter, Tolerance
Functionsjudgment value settings, Preset value settings, preset/zeroset clear, peak clear, error clear
Poweris supplied from EJ-102N (542-080/542-081)
Power supply(Cannot be charged via USB)
Operating temperature (humidity) ranges
0 to 50 °C (RH 20 to 80%, non-condensing)
Storage temperature (humidity) ranges-10 to 60 C (RH 20 to 80%, non-condensing)Order No.
Model
Applicable interface
User Interface

Features• Data can be output through an industrial interface (CC-Link) by linking a compact
counter (EJ counter) with an interface unit. Constant data monitoring and positional
management are performed. A USB interface is also provided for easy connection witha computer.
• Enables sum difference operations between 2 gages connected to the same counter.

DIMENSIONS

2.6
0.2

（97.6）

95
69.7(97.6)

95
69.7
2.6
0.2

31.7

31.7

20.7 2.2
26.65
88.9
91.8

(94.5)

Order No.
Model
Applicable interface

21HZA188
Interface unit EtherNet/IP
EtherNet/IP
POWER (green), NETWORK (green/red), MODULE (green/red),User Interface
LINK P0RT1 (green/amber), LINK P0RT2 (green/amber),
EJ-CONNECT (green)
Common protocols for USB and EtherNet/IP
Readout of current value, Current value hold (software
Functionshold), Parameter setting on EJ counter, Tolerance judgment
value settings, Preset valuesettings, preset/zero-set clear,peak clear, error clear
Power is supplied from EJ-102N (542-080/542-081)
Power supply(Cannot be charged via USB)
Operating temperature (humidity) ranges
0 to 50 °C (RH 20 to 80%, non-condensing)
Storage temperature (humidity) ranges-10 to 60 C (RH 20 to 80%, non-condensing)Order No.
Model
Applicable interface

26

59.25

2.5

56.2

59.25

31.7

Interface unit USB

Interface unit EtherCAT

2.5

2.5

56.2

59.25

56.2

(97.6)

Interface unit EtherNet/IP

95

Conversion cable (optional)
Not necessary
Necessary (21HZA194)
Necessary (21HZA193)

56.2

69.7

Connectable linear gage Series
LG100
LGF-Z
LGF/LGK/LGB/LG

59.25

2.6
0.2

Operating temperature (humidity) ranges
Storage temperature (humidity) ranges
Mass

2.5

56.2

31.7

Power
consumption

Interface unit PROFINET（97.6）

Power supply

21HZA187
Interface unit PROFINETPROFINET RT (RT Class1)/USB 2.0 Full Speed
POWER(green), NETWORK (green/red), MODULE (green/red),User Interface
LINK P0RT1 (green), LINK P0RT2 (green), EJ-CONNECT (green)
Common protocols for USB and PROFINET, Readoutof current value, Current value hold (software hold),
FunctionsParameter setting on EJ counter, Tolerance judgment
value settings, Preset value settings, preset/zero-set
clear, peak clear, error clear
Power is supplied from EJ-102N (542-080/542-081)
Power supply(Cannot be charged via USB)
Operating temperature (humidity) ranges
0 to 50 °C (RH 20 to 80%, non-condensing)
Storage temperature (humidity) ranges-10 to 60 C (RH 20 to 80%, non-condensing)

59.25

2.5

95
69.7

Input voltage

EJ Counter 8 units + 1 (optional) interface unit
(Max. number of linear gage connections: 16)
10 V to 27 V DC
1 unit only: 3 W or less (Includes 2 linear gages)
Max. number of links: 30 W or less(Interface unit and 16 linear gages included)
0 to 50 °C (RH 20 to 80%, non-condensing)-10 to 60 C (RH 20 to 80%, non-condensing)
Approx. 120 g

With
Withouttransparent cover transparent cover

56.2

2.6
0.2

Max. number of linked units

2.5

2.7

inch/mm
0.0002, 0.00005, 0.00002,
0.005, 0.001, 0.0005,
0.000005 (inch)/
Resolution
0.005, 0.001, 0.0005,
0.0001 (mm)0.0001 (mm)Number of linear gage connection ports
2
Differential square wave, differential square wave with
Supported gage signal
reference point markMaximum input frequency
5 MHz
Negative sign + 8 digits and indicator
User Interface Display(1 gage value displayed, manually switchable)
Number of I/O Input: 4 ports (Ch switch, peak clear, data hold, preset)
Output: 4 ports (Err/ALLGO, Tolerance judgment)
ports
External I/O
Compatible
CC-Link, USB
communication(Supported with optional interface units)
standards

31.7

mm

21HZA186
Interface unit CC-Link
USB 2.0 Full Speed
CC-Link Ver. 1.10
Applicable interface
CC-Link Ver. 2.00
POWER (green), RUN (green), ERROR (red), EJ-CONNECT (green)
Display
User
Rotary switch 3
Interface
Switch(Exchange number settings 2, communication speed settings 1)
Common protocols for USB and CC-Link, Readout ofcurrent value*2, Current value hold (software hold),
Parameter setting on EJ counter, Tolerance judgment
Functionsvalue settings, Preset value settings, preset/zero-set
clear, peak clear, error clear*2 Only Ver. 2.00 is supported with CC-Link.
Power is supplied from EJ-102N (542-080/542-081)
Power supply(Cannot be charged via USB)
Operating temperature (humidity) ranges
0 to 50 °C (RH 20 to 80%, non-condensing)
Storage temperature (humidity) ranges-10 to 60 C (RH 20 to 80%, non-condensing)Order No.
Model

（97.6）

542-08185.6
60.3

EJ-102N

Interface unit CC-Link

95
69.7

542-080

Order No.
Model
Unit

Unit: mm

EJ-102N

0.3

SPECIFICATIONS

2.6
0.2

• A small, high-speed, space-saving counter for linear gage suitable for in-line andin-laboratory use. It brings visibility into the production site, improves productivity, andenables data accumulation.
• Up to 8 compact counters (EJ counters) can be linked providing the capacity to connect
up to 16 gages.
• On a DIN rail, each unit can be connected directly without using cables, so it takes up
minimal space. All linked units and gages can be driven by a single power source.

59.25

Note 1: Can be mounted on DIN rail. Case material: PC, POM

27

Counter Specifications

SOFTWARE LG QuickSetupTool

Recommended system environment

A configuration tool is available for use with the EJ counter when connected via the optional USB interface.
All kinds of settings normally carried out with counter operating keys can now be easily applied from a computer.
Measurement value display and operation results can also be viewed on a PC.
Note 2: This software can be used free of charge and downloaded from the Mitutoyo website.
https://www.mitutoyo.co.jp/eng/contact/products/lg/

OS: Windows10 Pro 32 bit/64 bit
Display: 1600 1200 or more
Memory: 1024 MB or more
Communication method: USB2.0 (Full speed)
USB connector: Type C connector
Note 3: USB device drivers are standard
Windows drivers.

EC Counter – Only for Digimatic output
For Digimatic output gage head

Input/output specifications

EC-101D (542-007*)

1) Compatible plug: MIL type connector FAS-10-17 (YAMAICHI), XG4M-1030-T (OMRON)
2) Pin assignment

GO/NG judgment output or Digimatic output (selectable) type

OUT

9.

1.

Digimatic
2.

10.

Parameter setting

Features

Chart

1
2
3
4
5
6

O
O
O
I
I

Optional I/O
cable color
COM Connected to the internal GND
Amber/ black
Amber/red+NG Tolerance output: The relevant
GO 出力耐圧Yellow/ black
outputterminal falls to L.
：MAX24V
サージ吸収ダイオー
ド
MAX10mA
At ：anerror display [+NG=-NG=L]
カウンタ-NG 出力電流
Yellow /red
出力飽和電圧：MAX0.7V
HOLD HOLD input
Bright green/black
出力TD62583相当
P.SET PRESET input (to cancel0.01µF
the error)
Bright green /red
OUT
Other1.than the above listed shall be unconnected.

Description

9.

AC cable

No.357651

No.02ZAA000*

Protection

出力
diode

Upper
limit
0.01toleranceµF 0.01µF
Lower tolerance limit
COM

COM

100 ms*Counting data
-NG

100 ms*+NG
2. Input circuit (PSET, HOLD)
Input is valid when the line is "L".

* Varies depending on the gage.
Counter circuitry

Input current: IMAX 1 mA
Input voltage: H=4 to 24 V
L=Max. 1 V

PSET

5 KΩ

Example circuit atexternal user equipment:
Design so as to make useof the open-collector
output or relay output.

+5 V
5 KΩ

0.01 µF

Min. 10 ms

Min. 10 ms

Note: Input is active when L1="H", 0="L".

4) Timing chart
1. Tolerance judgment output
Upper tolerance limit
Lower tolerance limit
Counting data

100 ms*-NG

100 ms*+NG* Varies depending on the gage.

2. External preset / HOLD
PSET

Min. 10 ms

Note: Input is active when L1="H", 0="L".

44.4

48
96

6.6

67

Digimatic Mini-processor
DP-1VA LOGGER
264-505(8)

44.4

542-007
EC-101D000001

91.4

28

External
circuitry example:
サージ吸収ダイオード powered relay

TD62583相当

Min. 10 ms

DIMENSIONS

Code No.
Model
Serial No.

Example circuit atexternal user equipment:
Design so as to make useof the open-collector
output or relay output.

Output542-007*
EC-101D
0.01 mm (±9999.99)/0.0005 in (±99.9995 in)/0.001 in (±999.999 in)
0.001 mm (±9999.999)/0.00005 in (±9.99995 in)/
Resolution
0.0001 in (±99.999 in) [Automatic setting by gage]
Display
Sign plus 6 digits (Green LED)
Tolerance judgment display
LED display (3 steps: Amber, Green, Red)
Tolerance–NG, OK, +NG (open-collector)
External output judgment output(switching type) Data output
Digimatic output
Control input
External PRESET, external HOLD
Voltage
Supplied AC adapter, or 9 to 12 V DC
Power supply
4.8 W (max. 400 mA)
Consumption
Ensure at least 1 A is available per unit.
Operation /storage
C/Storage: –10 to 50 °C
Operation: 0 to 40 °temperature range
External dimensions
96 (W) 48 (H) 84.6 (D) mm
AC adapter: 12BAR954
AC cable: 12BAK729 (Japan),AC adapter
12BAK730 (U.S.), 12BAK731 (EU), 12BAK734 (UK),
12BAK732 (China), 12BAK733 (Korea)
Applicable head
LGS, ID
Mass
220 g
Connecting cable for Digimatic Mini-processor
936937 (1 m), 965014 (2 m)
Optional accessories
DC plug PJ-2 214938
I/O cable (2 m): 21HZA222* To denote your AC power cable add the following suffixes to the order No.: A for UL/
CSA, D for CEE, DC for CCC, E for BS, K for KC, C and No suffix are required for PSE.

5) Optional I/O cable (2 m)
21HZA222* Necessary when using the AC adapter

Ω

出力耐圧：MAX24V Counter circuitry
出力電流：MAX10mA
カウンタ
出力飽和電圧：MAX0.7V
TD62583
equivalent

Order No.
Model

AC adapter+5 V

5 KΩ 5 K
3) I/O circuit
1. Output circuit (-NG, GO, +NG)
0.01 µF
Transistor is "ON" when the open-collector output is "L".

SPECIFICATIONS

Optional Accessories

COM

Input current: IMAX 1 mA
Input voltage: H=4 to 24 V
L=Max. 1 V• Preset• Tolerance judgment (3 steps)

General settings

Function

Counter circuitry

FunctionsNo.21HZA209*

I/O

Note 1: Output from each pin in the Digimatic output mode may differ from those which aredescribed in the table above.
Note 2: One end of the I/O cable (2 m, optional) consists of separate wires for connection as
2. (with solderless terminal, green) should be connected
10.
appropriate.
The cable's F.G wire
to the grounding terminal of the main unit.

• Employs the DIN size (96 48 mm) and mount-on-panel configuration, which
greatly facilitates incorporation into a system.
• Can either produce tolerance judgment output or Digimatic output.

DC jack with pin terminal for EJ counter

Pin No.

Unit: mm29

Counter Specifications

Counter Specifications

EH Counter - Panel mount, Multi-function Type with RS-232C
Communication Functions

Digimatic

Tolerance judgment display
InterfaceControl output
Control input
VoltagePower supply
Consumption
Input/output• 1-axis display type, and 2-axis independent display type or 2-axis type that can display sum /difference calculation results are available.
• Multi-functional counter with functions of zero-set, preset, and tolerance judgment• Equipped with an RS-232C interface as standard. This allows data transfer to a personal computer, etc.
• A multi-point measuring system can easily be built up with the built-in networking function (RS link). (Max. 10 points)• Employs the DIN size (144 72 mm) and mount-on-panel configuration, which greatly facilitates incorporation into a system.

Functions

0.000

0.000

144 (W) 72 (H) 156.7 (D) mm
I/O output connector (with cover): 02ADB440

Standard Accessories

AC adapter: 357651/AC cable: 02ZAA000, AC cable (Japan): 02ZAA000*1, AC cable (USA): 02ZAA010*1, AC cable (EU): 02ZAA020*1,
AC cable (UK): 02ZAA030*1, AC cable (China): 02ZAA040*1, AC cable (Korea): 02ZAA050*1

DIMENSIONSTIR (run-out)=Maximum - minimum

Selects the counting direction of (+) or (-),
whichever is convenient with a given direction of
spindle movement.

To improve visualization of measurement data,
the least significant digit can be extinguished.
(However, the display via RS-232C and printing
to a printer are performed down to the leastsignificant digit.)

This prevents malfunction due to powerinterruption, etc.

Power ON
(3.1)

Counting standby display

CLR

156.7
148.2
137

Counting
144display

Indicates AC
adapter
installation

138
RS LINK
LINKRSRS LINK

IN

OUT
OUT

IN
IN

11.2

External control

Error message display

Digimatic output

Zero set, preset and display hold can becontrolled from the I/O terminals.

The counter displays an error message whena gage-head over-speed or breakage situation
occurs. It outputs the error signal from the I/O
terminal.

Digimatic Mini-processor DP-1VA LOGGER.
(RS-232C function is not available when
the gage is connected to DP-1VA LOGGER).

138

Code No.
No.
Code
Model
Model
Serial No.
No.
Serial138
RS LINK
LINKRS******* INPUT*********************************A

MADE IN
IN JAPAN
JAPAN
MADE
Kawasaki, Japan
Japan
Kawasaki,OUT542-***
EH-12S
000001

IN
IN
B

MADE IN JAPANRS-232C
RS-232C

I/O
I/O

RS-232C
2
23
3

DC IN
IN
DC
I/O

MADE IN
IN JAPAN
JAPAN
MADE

Kawasaki, Japan
Japan
Kawasaki,

RS-232C
RS-232C

I/O
I/O
2
23
3

IN
IN
Code No.
No.
Code
Model
Model
Serial No.
No.
Serial

138
BB

INPUT
INPUT

A
A

RS LINK
LINK
RS

IN
IN

OUT
OUT

Kawasaki, Japan
Japan
Kawasaki,

RS-232C
RS-232C

I/O
I/O
2
23
3

DC IN
IN
DC

542-071****************************************MADE IN
IN JAPAN
JAPAN
MADE

A
A

DC12-24V
DC12-24V
700mA
700mA

138
RS LINK
LINK
RS

INPUT
INPUT

1
41
4

DC12-24V
700mA

542-075
137

BB

OUT
OUT

****************************************

1
4

DC12-24V
DC12-24V
700mA
700mA

27

DC IN

Code No.
No.
Code
Model
Model
Serial No.
No.
Serial

1
41
4

2
3

5.1

RS-232C allows communication with a personal computer. It
allows not only the reading of measured values but also datatransmission to the counter and remote operations, such as
when changing various settings.

137

11.2

Code No.
Model
Serial No.

72

Enables measurement of thickness or stepheight using two gages.

Communication via RS-232C interface(Approx 10°)

Sets two (or four) desired tolerances for three(or five) stages. Judgment results can be output
to an external device.

Sum/difference calculation(3.1)

Tolerance judgment indication/output(Approx. 10°)+/-

Indicates AC
adapter
installation

72

Counting standby (to prevent malfunction at start-up)

Approx. 800 g

Unit: mm

148.2
137

144

Minimum reading digit change

LGS, ID

156.7

Min.

Direction switch

Reference
surface

LG100/LG200(A conversion plug 21HZA196 is required)
Approx. 800 g

LG100/LG200
A conversion plug 21HZA195 is required*2
Approx. 760 g
Approx. 800 g*1 To denote your AC power cable add the following suffixes to the order No.: A for UL/CSA, D for CEE, DC for CCC, E for BS, K for KC, C and No suffix are required for PSE.
For those models of the Order No. with Suffix "1", an AC adapter is not supplied as a standard accessory.
*2 The origin point detection function is disabled.

Max.

1.234

External dimensions
Optional Accessories

Mass

Allows switching to the measurement mode for
maximum value, minimum value, and run out value(maximum - minimum), in addition to the normal
measurement mode.

123.456–10 to 50 °C (RH 20 to 80%, non-condensing)

5.1

0.000

Storage temperature (humidity)
rangesApplicable gage head

Peak hold/TIR measurement

Sets the displayed value to 0 at any position of the Presets the display at any value. Counting
spindle.
begins at the preset value.

0 to 40 °C (RH 20 to 80%, non-condensing)68

PresetOperating temperature (humidity)
ranges

DC IN
IN
DC

1
41
4

Code No.
No.
Code
Model
Model
Serial No.
No.
Serial

OUT
OUT

IN
IN

****************************************MADE IN
IN JAPAN
JAPAN
MADE

138

BB

Kawasaki, Japan
Japan
Kawasaki,

RS-232C
RS-232C

I/O
I/O
2
23
3

DC IN
IN
DC

OUT
OUT

Code No.
No.
Code
Model
Model
Serial No.
No.
Serial****************************************MADE IN
IN JAPAN
JAPAN
MADE

RS-232C
RS-232C

Kawasaki, Japan
Japan
Kawasaki,

I/O
I/O
2
23
3

1
41
4

DC12-24V
DC12-24V
700mA
700mA

542-073

RS LINK
LINK
RS

INPUT
INPUT
A
A

68

Zero-set542-072*1
EH-102D̶
2.5 MHz (2-phase square wave)
0.01 mm/0.005 mm/0.001 mm/0.0005 mm/0.0001 mm
0.0005 in/0.00005 in/0.00005 in/0.000005 in/0.000005 in
Automatic setting by gage
(selection by the parameter)
LED display (3 steps: Amber, Green, Red /5 steps: Amber, Amber flashing, Green, Red flashing, Red)
RS-232C/USB/parameter selection via Digimatic (only DP-1VA LOGGER, Digimatic Mini-processor can be connected)(USB used only with SENSORPAK.)
Selection by parameter from 3-step, 5-step, or digit BCD
Total tolerance judgment output (when tolerance function is enabled)
Analog output (1 V to 4 V)
Open-collector
Display BANK switching, peak mode, presetting, display hold, hold per axis: open-collector
Supplied AC adapter (Jack input)
8.4 W (max. 700 mA) Ensure at least 1 A is available per unit.

Resolution

Features542-073*1
EH-102Z
2 axes1
41
4

DC12-24V
DC12-24V
700mA
700mA

542-074

DC IN
IN
DC

68

Phase-A/B/Z
With origin point markPhase-A/B

542-071*1
EH-102P

27

Phase-A/B

542-075*1
EH-101P
1 axisOrder No.
Model
Number of axes to be displayed
Maximum input frequency

For Digimatic code output gage heads(2 axes)

For differential square-wave output gage heads with Origin
Point Mark (2 axes)

68

For differential square-wave output gage heads(2 axes)1-axis input type and 2-axis input type counters are available.

EH-102D(542-072)

EH-102Z(542-073)

68

For differential square-wave output gage head (single
axis)

EH-102P(542-071)

68

EH-101P(542-075)

SPECIFICATIONS

DC12-24V
DC12-24V
700mA
700mA

542-072

138
RS LINK
LINK
RS

30

31

INPUT
INPUT
A
A

Code No.
No.
Code
Model
Model
Serial No.
No.
Serial542-***
542-***
EH-12S
EH-12S
000001000001

MADE IN
IN JAPAN
JAPAN
MADE

OUT
OUT
BB

8

IN
IN

Counter Specifications

Counter Specifications

Standard Accessories
BCD Output

Simultaneously outputs at channels [A] and [B] in groups of 4 bits.
1) Timing chart
Min.
2 ms

Simple analog output

Order No.
̶Monitoring of output waveforms is possible with an analog recorder connected.

35765102ZAA0001) Output specification

Min.
5 ms

Min.
5 ms

Min.
5 ms

Output voltage =2.5 V+ [counter value] [voltage
resolution] (0.75 mV)
Range: 1.0 to 4.0 V
Update time : 5 ms (Delay time: 10 ms)
Accuracy : ±1% (1 to 4 V)
Accuracy is rated at 4 V level
Load resistance : 300 KΩ or more

BCD output timing

SET1
BCDCK
REDY

—

214938—99MBC018

Part name
Washer (small-round, plain washer: nominal 4)
AC adapter
AC cord
DC plug
Stand
Rubber foot (SJ-5303: 3M)
User's Guide

No. of pcs.
6
1
1
1
1
4
1

2) Measuring range
Max.
2 ms

Min. 10 ms×8=80 ms

2) Data format
LSD (Least significant digit)
A/B_bit0
A/B_bit1
A/B_bit2
A/B_bit3
A/B_SIGN

D1

D2

1 100
2 100
4 100
8 100
SIGN

1 100
2 100
4 100
8 100
BANK

+: H
-: L
BANK1: L
BANK2: H

Bits 0-3
SIGN

MSD (Most significant digit)

D3

D4

D8
1 107
2 107
4 107
8 107

PEAK1 PEAK2
NOM
MAX
MIN
TIR

Data output example
D1 D2 D3 D4
１
0
6
5
L

PEAK1
L
H
L
H

Parameter
No.30
0
1
2

Measuring range (mm) / Resolution (mm)
10 µm gage
1 µm gage
0.1 µm gage
±19.99 (0.01)±1.999 (0.001)±0.1999 (0.0001)±199.90 (0.1)±19.990 (0.01)±1.9990 (0.001)±1999.00 (1)±199.900 (0.1)±19.9900 (0.01)

D6
3

I/O connector
Plus for external I/O receptacle
02ADB440 (with cover)

RS Link* Function
It is possible to connect a maximum of 10 counter units together to carry a maximum of
20 channels of multi-point measurement at a time.
For this connection use a dedicated RS link cable; 02ADD950 (0.5 m), 936937 (1 m)
or 965014 (2 m) (The maximum total length of RS link cables permitted for the entire
system is 10 m.)

Connecting cable for Digimatic Mini-processor
Outputs measurement data from a counter to Digimatic Mini-processor
DP-1VA LOGGER.
936937 (1 m)
965014 (2 m)* Patent registered (Japan, U.S.), Patent pending (E.U.)

PEAK2
L
L
H
H

Unit 1
IN

D7
2

D8
1

▼

-12345601

Personal computer

OUT

IN

EH-102

RS-232C

D5
4

Optional Accessories

OUT

Connecting cable for "RS link"

EH-102This cable is to serially connect a counter during use of "RS link".
02ADD950 (0.5 m)
936937 (1 m)
965014 (2 m)cable/USB cable

Note: Only the Mitutoyo software“ SENSORPAK” can be used
when a USB cable is connected.

Note: Negative logic output is possible for SIGN, BANK, PEAK, DATA (PNo.21=1).

RS-232C Communication Functions
Makes it possible not only to log measured values but also make various remote settings including the zero-setting of a counter, etc.
To communicate data with a PC, terminal software is needed that should be provided by the customer.
Command format
Corresponding output
Function
GA**CRLF
G#**, +01234.567CRLF
Outputs the [Displayed value] through RS-232C
CN**CRLF
CH**CRLF
Switches the display to the [Current value]CX**CRLF
CH**CRLF
Switches the display to the [Maximum value]
CM**CRLF
CH**CRLF
Switches the display to the [Minimum value]CW**CRLF
CH**CRLF
Switches the display to the [TIR (runout)]
CR**CRLF
CH**CRLF
Zeroset
CL**CRLF
CH**CRLF
Clears the peak value
CP**, +01234567CRLF
CH**CRLF
Inputs the preset value
CD**, +01234567CRLF
CH**CRLF
Inputs tolerance value S1
CE**, +01234567CRLF
CH**CRLF
Inputs tolerance value S2
CF**, +01234567CRLF
CH**CRLF
Inputs tolerance value S3
CG**, +01234567CRLF
CH**CRLF
Inputs tolerance value S4
CS**CRLF
CH**CRLF
Cancels the error
CK**CRLF
CH**,$CRLF ($=0 or 1)
Checks the HOLD status**: denotes a gage channel number between 01 and 99 ("00" means all channels).
#: denotes the type of data [N: Current value, X: Maximum value, M: Minimum value, W: TIR (runout)].
CRLF: CR (carriage return), LF (line feed).
Note 1: For presetting and tolerance limit setting, enter each value consisting of a sign and 8 digits ofnumeric value without a decimal point.
Note 2: Perform the tolerance limit setting in the order of CD and CG for the case of 3-step tolerance
judgment, and in the order of CD, CE, CF, and CG for the case of 5-step tolerance judgment.
Note 3: The RS communication function will be suspended during key operation (e.g. setting
parameters, preset values, or tolerance limits). It automatically resumes the command and data
output operation when the gage is recovered to such a condition that the counting is possible.
Note 4: For canceling the counting-standby state, use CS00CRLF (specification of all channels).

32

Gage No.

01

02

03

04

RS-232C specifications
1) Compatible plug: D-sub9 pin (female), inch thread specification
2) Pin assignment

Pin No.
2
3
4
5
6
7
8
1, 9

1

6
Description
RXD
TXD
DTR
GND
DSR
RTS
CTS
N.C.

5

Receptacle
D-sub9 pin (male)inch thread specification
9

I/O
IN
OUT
OUT
̶

IN
OUT
IN
̶

Function
Receive data
Send data
Data terminal ready
GroundData set ready
Request to send
Clear to send
Connection impossible3) Communication specifications (conforming to EIA RS-232C)
Home position
DTE (Data Terminal Equipment) Use a cross-type cable.
Communication method Half-duplex, teletype protocol
Data transfer rate 4800, 9600, 19200 bps
Start bit: 1
Data bits: (7, 8) ASCII, upper-case characters
Bit configuration Number of parity bits: None, even, odd
Number of stop bits: 2
Setting thecommunication conditions Set via parameters.

33

Counter Specifications

Counter Specifications

Input/output specifications
I/O connector pin assignment4) Timing chart1) Suitable plug: 02ADB440 (with cover) Optional accessory

18

Min. 2 sUpper tolerance limit
1

Suitable plug
10136-3000PE
10336-52A0-008
DX40M-36P
DX30M-36-CV

Socket:10236-52A2(3M) equivalent
36

19

Pin No.
I/O
Description
̶
COM
1, 2
3
O
AL1
4
O
AL2
5
O
AL3
6
O
AL4
7
O
AL5
8
I/O
ALLGO
9
O
RS_EXT
10
O
NOM
11
O
BL1
12
O
BL2
13
O
BL3
14
O
BL4
15
O
BL５
16 to 21
22
O
A_ANG
23
O
B_ANG
̶
24
AGND
25
I
SET1
26
I
SET2
27
I
SET3
28
I
DISP
29
I
MODE
30
I
BCDCK
31
I
EXTTRG
32
I
A_HOLD33
I
B_HOLD
34
I
HOLD
35
I
PA
36
I
PB
*1 During input the decimal point will be flashing.
*2 During input the UNIT indicator will be flashing.

External circuitry example:
powered relay

Counter circuitry

OutputMin. 30 ms

HOLDMax. 10 ms
Max. 30 ms

BCD output mode
Description
COM

NOM

FunctionInternally connected to GND

A_bit0
A_bit1
A_bit2
A_bit3
A_SIGN[A] Upper row data

READY

"L"=data is valid

L1

B_Bit0 [B] Lower row data
[2-axis model]

L5

3. External preset (PA, PB) input
Min. 30 ms

Min. 30 ms

4. Peak clear input(After inputting HOLD, or simultaneous input with the preset value)
Min. 30 ms

Note: Excluding the period during key input, RS-232C communication or
Digimatic processing.

Command

LF

Response output

LF

PA, PB

Data latch period: Max. 10 µs (±20 ms)*1
Error clear
Max. 40 ms of data OUT*2

LF
Min. 30 ms

Specifies the BANK to be displayed: Combined operation with SET
Switching of peak value: Combined operation with SET
Specifies the BCD output: Combined operation with SET
USB trigger[A] ch HOLD (Upper row display HOLD)*1[B] ch HOLD (Lower row display HOLD)*1 [2-axis model]
HOLD/ Error canceling error input*2[A] Upper row preset / Peak clear (in the peak HOLD mode)[B] Lower row preset / Peak clear (in the peak HOLD mode) [2-axis model]

Min. 30 ms

HOLD

5. RS-232C command input and response output

Enter the setting value with SET in advance, and determine it with MODE and DISP

Max. 10 ms

L3

Note: With the RS link established the reference counter will be the onethat was powered on last.

PA, PB

Normal output "L"=Normal output, "H"=abnormal output[B] Lower row tolerance
B_bit1· Output "L" only for output-relevant terminal
B_bit2· When any error is displayed,
B_bit3
BL1, BL5="L"
B_SIGN
BL2, BL3, BL4="H" [2-axis model]
Not connected
A-ch analog output
B-ch analog output [2-axis model]
Analog GND

Max. 20 ms

Min. 10 ms

Note: Excluding the period during key input, RS-232C communication or
Digimatic processing.

Min. 0 ms*1 ( ) represents the case either in peak mode or in such a mode that an input of
HOLD triggers RS-232C output.
*2 Case in such a the mode that input of HOLD triggers RS-232C output.
Note: The PRESET indicator will be flashing during the input operation of HOLD.

2. Input circuit:
PA, PB (only with 542-062), HOLD Input is valid when
the line is "L".
External equipment

Counter circuitry

Protection
diode0.01 µFCOM

Lower tolerance limit

Power supply(3M: Plug)(3M: Cover)(HIROSE: Plug)(HIROSE: Cover)Tolerance judgment output mode
FunctionInternally connected to GND[A] Upper row tolerance· Output "L" only for output-relevant terminal· When any error is displayed,
AL1, AL5="L"
AL2, AL3, AL4="H"
Total tolerance result output "H"=OK "L"=NG

3) I/O circuit
1. Output circuit:
NOM, AL1 to AL5, BL1 to BL5 Transistor is "ON" to drive
the line to "L" (open-collector output).

TD62583 equivalent

2. Tolerance judgment result output period

1. Power ON characteristics

2) Pin assignment

5 KΩ

+5 V
5 KΩ

Example circuit

Use any no-voltage
output such as
open-collector output
or relay output.

0.01 µF

Supply voltage: Max. 24 V
Output current: Max. 10 mA
Output saturation voltage: Max. 0.7 V

カウンタ

34

外部機器
＋5V
5K Ω

参考回路

Input current: IMAX 1 mA
Input voltage: H=4 to 24 V
L=Max. 1 V

Output saturation voltage:
Max. 0.7 V or less35

Head Specifications

Connecting linear gages to counters/Comparative table of counter functions

Counter Specifications

Origin Point Mark Detection (EH-102Z, EJ-102N)

Linear gage counter
Applicable gages

Preset operation
A value given by subtracting an internal counter value from the preset
value is stored in offset memory as the user origin point position.

＝−

The preset value is shown on the display at the time of input(Preset)6.
5.

To the timing when the spindle passes over the originpoint,
the counter begins counting from the offset value.

Internal counter value (invisible)
Display value (visible)

13.
3.

8.

12.

Master workpiece

4.

Limit of spindle
retraction

2.

6 mm

11.
4 mm
7.

Origin point
mark position
3 mm

-3 mm

Master value

Limit of spindle
extension

12 mm

5 mm

8 mm

1.

Master workpiece

9.

10.

Power ON
Note: The linear gage used in the above example is the LG100, which has a measuring range of 10 mm. This linear gage has its origin point marked at a position approximately 3 mm from the limit of the spindle extension.
In the case of 25/50 mm-stroke types the origin point mark is positioned approximately 5 mm from the spindle extension limit.

Origin Point Mark Detection Procedure
1. Turn the display unit connected to the gage head to ON. (The offset register is set to zero at this stage.)
2. Displace the gage head spindle approximately more than 3 mm from the spindle extension limit position to make it passover the origin point mark.
3. The display unit will automatically read the origin point and zero-set itself.
4. Bring the gage head contact point into contact with the master gage as shown.
5. The display unit indicates the displacement from the origin point position. (Offset register still contains zero.)
6. Input the preset value (the calibrated size of the master gage, 12.000).
7. Remove the master gage so that the spindle extends to its limit.
8. The display unit displays position of the contact point relative to the datum surface.
9. Turn OFF the display unit.
10. Turn ON the display unit.
11. Displace the gage head spindle approximately more than 3 mm from the spindle extension limit position to make it passover the origin point mark.
12. The display unit will automatically read the origin point and the displayed value will effectively start from the stored
offset register value (0.000+8.000=8.000).
13. The contact tip can now be brought into contact with the workpiece to make the measurement and the display will
indicate the workpiece size (4.025+8.000=12.025).

36

EC
EC-101D
Digimatic

EH
EH-101P

EH-102P

EH-102Z

Phase-A/B

Phase-A/B

Phase-A/B/Z
With origin point markEH-102D
Digimatic

EJ
EJ-102N
Phase-A/B/Z
With origin point mark0.1 µm LG100/LG200*5*5*60.01 mm LGS
Functions
Number of connectable gages
1
1
2
2
2
2
Display
Zero set
Presetting
○
○
○
○
○
○
Direction switch○
GO / NG indication○
GO / NG output
○
○
○
○
○
5-stage tolerance display/output
○
○
○
○
○
○
3-stage tolerance display/output
mm / inch switch
ABS gage zero set○○
ABS / INC gage changeover
Peak (max . /min.) holdRun out (TIR) measurement
○
○
○
○
○
Double count
○
○
○
○
○
Sum /difference calculation
○
○
○
○
○
Lower digit blank-out
External zero set*1
External preset
External hold
External tolerance set (when a PC is used)
External tolerance memory siwtch (when I/O is used)
External peak-hold cancel
OutputPower-supply voltage error
Overspeed error
Overflow error
Gage error
Tolerance setting error
Communication error
Parallel BCD output
Serial BCD output○○○○
Simple BCD output
Simple analog output
○
○
○
○
○
Tolerance judgment output*2
Limit output
Segment output
RS-232C output
*2
*2
*2
*2
Digimatic output
*4
*3
*3
*3
*3
USB output for SENSORPAK
RS link*2*2*2*2
RS link (maximum number of gages)
10
20
20
20
16
CC-Link communication*7
PROFINET communication*7
EtherNet/IP communication*7
EtherCAT communication*7
USB communication*7: Standard function ○: Configurable with internal parameters*1 Enabled by setting "0" via external presetting. *2 Switchable between the Digimatic output. *3 Switchable between the RS-232C output.
*4 Switchable between the tolerance judgment output. *5 A conversion plug 21HZA195 is required. *6 A conversion plug 21HZA196 is required. *7 Compatible Interface Unit is required.

37

Linear Gage Accessories (Optional)

SENSORPAK
Measurement data acquisition software for EH, VL• This software facilitates loading measurement data onto a personal
computer from a linear gage counter with RS-232C output(EH), or from a Litematic display (VL).
• 20 channels (max.) of measurement data can be processed.

Optional gage head accessories• Arithmetical calculations and maximum width calculations can be
performed using the measurement data.
• Exporting measurement data into MS-Excel format is supported.
• Real time graphical display by means of bar-graph or meter is provided.

Various Contact Points/Extension Rods (Interchangeable dial indicator contact points are also available.)• All threads of interchangeable contact points are M2.5 (P=0.45) ×5 mm.
• If any contact point is replaced with another, firmly attach it so that it cannot become loosened during use.
(Recommended tightening torque=50 N・cm)• A carbide contact point is particularly good at resisting to abrasion.

Ball Points

ø3 mm Ball Points
Standard contact point.

Convenient to measure a depressed feature on a workpiece.

Without groove

Unit: mmMaterial: Hardened steel

7.3

Unit: mm
ø5

L

SøD

Sø3

Meter screen 2

Chart screen 3

Order No.
Order No.
Order No.
Order No.
Order No.
Order No.
Order No.
Order No.

CarbideCarbidePlastic

901312
21JAA225
12004921JAA224
137391
21JAA226
120053
21AAA252

120047901994

—

—
—
—
—
—
—
—

120051—137392—120055
21AAA253

SøD
1
1.5
1.8
2.5
4

Spherical tip material

Order No.
21AAA349
21AAA350
101122
21AAA351
21AAA352

CarbideHardened steel
CarbideSpherical Points

L

Unit: mmMaterial: Hardened steeløDMeasurement screen 1

Material

L (mm)
7.3
14
15
17
20
22
25
30

SR

Program disk (CD-ROM)

D
SR
L
Order No.

Flat Points

ø5.5
5
3
111460ø855125258

ø10
7
5101119Convenient to use if the feature to be measured is convex.

38

L

Order No.
131365
21AAA340

D
10
15
20
25
30

Order No.
101117
21AAA341
21AAA342
21AAA343
21AAA344

Note: If perpendicularity to the stem and parallelism with the reference plane are
required using a flat contact point, extra adjustment in conjunction with thelinear gage is necessary. Consult with Mitutoyo as a custom-made option.

ø2120056ødL
8
10(Flatness: 5 µm)

ø5(Flatness: 3 µm)

Unit: mm
Flatness: 3 µm

8Material: Carbide

1.7 (2)ød D
4.3 5.2
6.5 7
9.5 10.5
15 17
20 22
25 27
30 32

L
5

Flatness
3 µm

10

10

The dimension in parentheses
is only applied to Order
No.120042.

5 µm

Order No.
120041120042120043
21AAA345
21AAA346
21AAA347
21AAA348

2

3

ød0
3
4.5

ød
6.4
8

øD
7
9

Order No.
137255137399(Flatness: 3 µm)

Note: If perpendicularity to the stem and parallelism with the reference plane are
required using a flat contact point, extra adjustment in conjunction with thelinear gage is necessary. Consult with Mitutoyo as a custom-made option.

Shell Type Points
Contact point with a large radius. Optimal for use on flat surfaces.

Unit: mmMaterial: Hardened steelL

Spherical Points (Carbide)LøD

Unit: mmMaterial: Carbide(spherical tip surface only)

1.7
SR

øD

SR

5

2.5

L
5
10
15
20
25
30

Order No.
10138610111813739310138710138821AAA254

Note: Diameter d isavailable up to ø40 asa custom order.

øDød

SEONSORPAK
Product configuration
Program disk (CD-ROM), license key, operation manual
Mitutoyo RS_LINK compatible devices
・LGH Series (USB, RS-232C)
Compatible devices
・EH counter (USB, RS-232C)
・Litematic VL (RS-232C)
A cable should be prepared to the following specifications:
Accessory
・RS-232C connection: I/O cable (21HZA137)*1
Connecting cable
Commercial product・USB connection: USB cable (type A - type B)
・RS-232C connection: RS-232C cross cable*1
Number of connectable gages
Max. 20 units (when 10 units of EH counter for linear gage are connected via RS-Link)
Display format: counting, bar graph, indicator, chart, and table
Display*2
Display cycle: 0.3 s (when 20 gage units are connected, 1-window display, and no Excel output)
Calculation (up to 30 items) between designated gages is available.
Calculation
Calculation items: Sum, difference, total, average, maximum, minimum, range (maximum–minimum), calculation with a constantTolerance
Per item: Displays the result in colors (3-step tolerance: red/green/red; 5-step tolerance: red/yellow/green/yellow/red)
Total judgment: Displays in colors (red/green) by monitoring the multiple gages and calculation result
Functions judgment
Items: channel values, calculation result, tolerance judgment, total tolerance judgment, timestamp
Max. number of records: 60000 for software recording (with 6 gages connected); up to 27000 (with 20 gages connected)
Recording*2
Output function: Direct output to Excel, CSV file output (compatible with MeasurLink®)
Recording trigger: key, timer, external TRG
Input: TRG for recoderding (HOLD)
Input/output*3
Output: Total tolerance judgment result
DOS/V compatible PC environment
System environment
CPU: Pentium4 2 GHz or more, Memory: 2 GB or more, Hard disk: 2 GB or more free space
OS: Windows 7 (32 bit/64 bit), Windows 8.1 (32 bit/64 bit), Windows 10 (64 bit)
*1 If the PC is not equipped with an RS-232C port, please contact the nearest Mitutoyo sales office/service center.
*2 Display cycle and the maximum number of records differ depending on the environment (specification of PC, number of connected gages, display format and communication setting).
*3 With use of the I/O cable (accessory). When an I/O cable is not used, the I/O connector of connector of the counter alternatively functions.
(Refer to the user's manual of the counter in use.)

Flat Points (Carbide)øD

SPECIFICATIONS

Unit: mmøD

ø5

License key

10

øD
ød
ød0

3

L

SR

D

L
5
10

SR

Order No.
Order No.

ø5.2
5120058
—

ø7.5
7

ø10.5
10

120059120060——39

Quick Guide to Precision Measuring Instruments
Quick Guide to Precision Measuring Instruments
Needle Points

Conical Points

Suitable for probing the bottom of a groove or hole.

Used for positioning the measurement point. Since it can damage a workpiece easily,
it is not suitable for use on soft materials.
Unit: mm
Tip angle: 90° Material: Hardened steel
Tip angle: 60°

Unit: mmMaterial: Hardened steelL5101120ø5) for 137413

L
15
17
25
35

90°
Conical Points (Carbide)
9

ø2

ø5

120057
90 °

ø5

øD

Note: Angles other than 90°are
available as a custom order.

Order No.
Order No.
Order No.
Order No.

3
5
8
10
—
—
120066 21AAA329
120065 21AAA330 21AAA331 21AAA332——
21AAA335
21AAA336———
13725713120064
—

ℓ
18
20
28
40
—
—
21AAA333
21AAA334
ø1
Order No.
——
ø1.5 Order No.
21AAA337
21AAA338—
21AAA258 21AAA339
ø2
Order No. 21AAA257
Note: A different specification is available as a custom order.

Knife Edge Point (Carbide)

ø4
øD

IP67
15

120067

Unit: mmMaterial: Carbide

Note: Diameter D more than ø0.5 and length/
between 5 and 40 are available as a custom order.

H
ø2
ø4

Order No.
Order No.

0.4120061—

Unit: mmMaterial: Stainless steel

L

5

ø5

øD

H

D

Extension Rods
ø5.2

10
2.5

0.6
120062—

1—120063

Note: If perpendicularity to the stem, parallelism with the reference plane, anddifferent contact point orientation are required using a blade contact point,
extra adjustment in conjunction with the linear gage is necessary. Consult
with Mitutoyo as a custom-made option.

Ingress Protection CodeUnit: mmMaterial: Carbide

8

Blade Points (Carbide)
Convenient for cylinder measurement, etc.

A measurement method where a workpiece dimension is found bymeasuring the difference in size between the workpiece and a master gage
representing the nominal workpiece dimension.

IP66

Suitable for measuring narrow groove diameter, etc.

D

L
10
15
20
25
30
35
40
45
50

Order No.
303611
21AAA259A
303612
21AAA259B
303613
21AAA259C
21AAA259D
21AAA259E
21AAA259F

L
55
60
65
70
75
80
90
100

Order No.
21AAA259G
304146
21AAA259H
21AAA259J
21AAA259L
21AAA259M
304147303614

Roller Points

Type

Level

15

23

3
9
10
901954

R5Note 1: A different øD is available
as a custom order.
Note 2: A high-accuracy type with aroller run-out of 5 µm is available.
(Custom-made option)

Description

Protection against
from dust ingresscontact with the human 6: Dust tight Protection
Complete protection against contact
body and foreign objects
Protects against
6: Water-resistant Water jets directed against the enclosure fromexposure to water
any direction shall have no harmful effects.
type
Protection against
Protection
from dust ingresscontact with the human 6: Dust tight Complete protection
against contact
body and foreign objects
Protects against
exposure to water

against the effects of
7: Immersion- Protection
in water between 1 cm
protection immersion
and 1 m for 30 minutes

Any numeric value can be set on the display unit for starting the countfrom this value.

Note: Perform the zero-setting beyond 0.2 mm stroke from the rest position.
This puts the spindle in the guaranteed accuracy region.

Direction Changeover

The measuring direction of the gage spindle
can be set to either plus (+) or minus (-) ofcount.

Precautions in Mounting LGH Series

To fix the LGH Series, insert the stem into the dedicated stand or fixture.
Stem+/Datum plane

MAX, MIN, TIR Settings

The display unit can hold the maximum (MAX) and minimum (MIN) values,
and the run out value (TIR) during measurement.

Runout value (TIR) = MAX - MIN• Insert the stem of the gage into the mounting clamp of a measuring unit
or a stand and tighten the clamp screw.
• Notice that excessively tightening the stem can cause problems withspindle operation.
• Never use a mounting method in which the stem is clamped by directcontact with a screw.
• Never mount a linear gage by any part other than the stem.
• Mount the gage head so that it is in line with the intended direction of
measurement. Mounting the head at an angle to this direction will cause
an error in measurement.
• Exercise care so as not to exert a force on the gage through the cable.

Stem Clamp screw

123.456

1.234

Precautions in Mounting a Gage Head

Clamp

Unit: mmHexagon nut
Roller part material: Hardened steel
Roller run-out: 10 µm

ø10PresettingThis is the force exerted on a workpiece during measurement by the contact
point of a linear gage head, at its stroke end, expressed in newtons.

Protection
code

—
—

ø5

ℓ

0.000

0.000

Comparative Measurement

120068

0.5

D
ø0.45
ø1
ø1.5
ø2

The display value can be set to 0 (zero) at any position of the spindle.

Note: Perform the zero-setting beyond 0.2 mm stroke from the rest position.
This puts the spindle in the guaranteed accuracy region.

Plain stem

Measuring Force

8
ø5

ø2

Unit: mmMaterial: Carbide

7

Zero-setting

The plain stem has the advantage of wider application and slight positional
adjustment in the axial direction on final installation, although it does
requires a split-fixture clamping arrangement or adhesive fixing. However,take care so as not to exert excessive force on the stem.

Unit: mmMaterial: Carbide

15

90 °

Needle Points (Carbide)

Plain Stem

0.000

90 °

ℓ

11
13
21
31

Counter5Note: Contact Mitutoyo to inquire about specifications such as tip SR: 0.2 or more and ℓ: up to 40.
Order No.
101121137413
21AAA255
21AAA256

101385

ø1

SR0.4 (0.2) (

ø5

ø5

10

Gage Head

Clamp screw

Clamp

Recommended hole diameter on the fixing side: 15 mm +0.034/+0.014• Machine the clamping hole so that its axis is parallel with the measuring
direction. Mounting the gage at an angle will cause a measuring error.
• When fixing the LGH Series, do not clamp the stem too tightly. Overtightening the stem may impair the sliding ability of the spindle.
• If measurement is performed while moving the LGH Series, mount it sothat the cable will not be strained and no undue force will be exerted on
the gage head.

MAX

MIN

Tolerance Setting

Tolerance limits can be set in various display units for automaticallyindicating if a measurement falls within those limits.

Open-collector Output

An external load, such as a relay or a logic circuit, can be driven from thecollector output of an internal transistor which is itself controlled by aTolerance Judgment result, etc.

Digimatic Code

A communication protocol for connecting the output of measuring tools
with various Mitutoyo data processing units. This allows output connection
to a Digimatic Mini-processor DP-1VA LOGGER for performing various
statistical calculations and creating histograms, etc.

BCD Output

A system for outputting data in binary-coded decimal notation.

RS-232C Output

A serial communication interface in which data can be transmittedbi-directionally under the EIA Standards. For the transmission procedure,refer to the specifications of each measuring instrument.

CC-Link

An abbreviation of Control & Communication Link, the new open field
network developed by Mitsubishi Electric Corporation. It is a high-speed
field network that allows for control and communication at the same time.

40

41

Quick Guide to Precision Measuring Instruments

Quick Guide to Precision Measuring Instruments

Before using the gage head

Precautions in mounting a Linear gage
LGH Type

Avoid installing the gage in locations where:

A LGH can be mounted by inserting its stem in the mounting hole of a dedicated stand or other equipment.
Recommended mounting＋
hole diameter in fixture: 15 mm ＋ 0.024
0.006

Stem

Power supply to the display unit

• EMC Directive/Electromagnetic Compatibility Regulations: EN61326-1• If a generic switching regulator is used, provide grounding via the frame's ground terminal
or ground terminal of the power supply.
• If a malfunction occurs due to superimposed noise on the power-supply line, use a
DC-regulated power supply that incorporates an isolation transformer.

Preventing electrical interference• Bundling the sensor cable with high-voltage lines or power lines may cause thegage to malfunction. The sensor cable run should be completely separate.

About grounding• Avoid sharing the frame ground (F.G.) terminal of this unit with the high-power line
groundingbut separately connect it to Class 3 Grounding.

Handling precautions• This product is a precision measuring instrument. Avoid dropping or otherwise subjecting it to impact.
• The spindle of the gage head is connected to the body via a spring. Be careful not to pull the spindle in the extending direction or rotate it with force. Doing so may cause permanent distortion and damage to the spring.
• The gage is shipped with a standard contact point (901312) installed on the spindle. This contact point can be replaced with a different type that best suits the shape of the workpiece feature to be measured.
(See page 52, 53.)
When installing or removing a contact point, locate the key wrench provided in the wrench groove in order to keep the spindle from rotating. Then grip the contact point with pliers to install or remove it. When gripping thecontact point with pliers, insert a piece of felt or other soft packing between the jaws and the point to protect it from damage.
• Do not use both ends of the stroke as an origin (zero) point.

Quick Guide to Precision Measuring Instruments

Precautions in mounting a Linear gage
LG100 / LG200 series
The following illustrate important points to which customers should pay attention. Refer to these when using gage heads and counters.

Screw

Stem

FixtureScrew

Fixture• The mounting hole shall be machined parallel with the direction of measurement. Cosine-effect measurement error will occur if the gage is misaligned with this direction.
• Excessive force in tightening the stem will affect smooth spindle motion and should be avoided.
• In applications where a LGH is subject to movement, ensure that the mounting is designed to avoid the cable being dragged when in motion.

Precautions for measurement:• To help ensure accuracy, allow 30 minutes warm-up time for the system after powering ON.
• Allow sufficient time for temperature stabilization for both the gage and workpieces to be measured.
• Thoroughly clean the contact point and all surfaces to be measured before measurement to avoid accuracy degradation due to dust or grease.
• Be aware of possible overspeed errors if the contact point is allowed to drop significantly from surface to surface on the workpiece. Appropriate measuring proceduresshould always be used with due consideration for the part features.

Applies to all linear gages
Mounting the gage head
• Insert the stem of the gage into the mounting clamp of a measuring unit or a stand and tighten the clamp screw.
• Notice that excessively tightening the stem can cause problems with spindle operation.
• Never use a mounting method in which the stem is clamped by direct contact with a screw.
• Never mount a linear gage by any part other than the stem.
• Mount the gage head so that it is in line with the intended direction of measurement. Mounting the head at an angle to this direction will cause an error in measurement.
• Exercise care so as not to exert a force on the gage through the cable.

Examples of the plain-stem mount• The recommended clamping torque is 0.4 to 0.5 Nm. Over-tightening the stem clamp will prevent smooth movement of the spindle.
Ensure the spindle can move freely after clamping.
Example 1

Unit: mm

7.5(4.5) A

15 (9)
7.5(4.5)

Example 2

remove15②Rotate a plier42w
section ø4.5, ø7.5 depth 4.4
A−A′

q

A′
M4×0.7

Unit: mm

About dust/water protection

How to install/remove the contact point

LG100/LG200 Series
Mounting the thrust
stem

A′
0.020
ø8H ＋＋0.005

A−A′
section15 (9)＋

ø10 −00.015

install

M4×0.715 (9)7.5
A (4.5)

ø10 ＋0.020
0.005

30
①Use a wrench tohold a contact
point

The contact point is interchangeable according to the application. When installing or removing a contact point, locate
the key wrench provided in the wrench groove in order to keep the spindle from rotating. Then grip the contact
point with pliers to install or remove it. When gripping the contact point with pliers, insert a piece of felt or other softpacking between the jaws and the point to protect it from damage.

20
10

q

Slit set at 90 degrees
w
to setscrew

6

6

Replacing the contact point

16

15

Our Linear gage Series products conform to the
EMC Directive and the UKʼs Electromagnetic
Compatibility Regulations.

Mounting the gage30

* 0 to 50 ℃ for LG100 Series, EJ counter and Interface unit

• The gage may come in contact with splashed water,
oil or chemicals. (The gage system components are
not designed for protection against water, oil orchemical attack, except for the gage unit.)• Electronic noise is likely to affect the gage.

15• The gage would be subject to corrosive gas, orwhere combustible materials are placed nearby.
• The gage is subject to air containing significant
amounts of dust, salt or iron powder.
• The gage is subject to direct vibration or shock.

ø8＋＋0.020
0.005• The gage will be exposed to direct sunlight, or where the ambient
C or exceed 50 °C*.
temperature may drop below 0 °• The relative humidity may drop below 20% RH or exceed 80% RH,
or where a sudden change in temperature may cause condensation.

If the thrust stem is retrofitted, the gage can be fixed more steadily and easily only by drilling a ø9.5 hole on a platewith a thickness of about 10 mm. To mount the thrust stem, fit the special wrench (optional) in the wrench groovein the middle of the main unit, and then fasten the clamp nut with the standard-supplied wrench while holding
the knurled part by hand. Take care not to hold the cable receptacle on the main unit, otherwise the gage may bedamaged due to torque caused by twisting.
Note 1 Refer to page 21.

• The preamplifiers and counters are not designed to be dust-or water-proof. Install them in places where they will not come into direct contact with dust, water or oil.
• When an extension cable is used, seal the preamplifier connection and connectors completely, making sure no portion is left exposed.
• If the cable cover is damaged, water or other liquids may enter the gage due to capillary effect, causing gage failure. If the cable cover becomes damaged it should
be repaired or replaced immediately.
• Handle the gage with due caution to make sure that the rubber boot will not be damaged by scuffing, etc. If the rubber boot is damaged, the gage can no longer beprotected from dust or water ingress. When damage is found, repair or replace the boots immediately.
• The rubber material used for the boots and seals does not provide complete protection against coolants and chemicals, which are becoming increasingly complex incomposition. If rubber parts are found to have deteriorated significantly, contact your nearest Mitutoyo office.
• The gage must not be disassembled, since it will break the seals of various components. Never attempt to disassemble the gage. Doing so will prevent the gage fromfunctioning to its original specifications.

43332 2205(7)g-(PA)CM (JP12), Printed in Japan

Coordinate Measuring Machines

Vision Measuring Systems

Form Measurement

Optical Measuring

Whatever your challenges are,
Mitutoyo supports you from start to finish.
Mitutoyo is not only a manufacturer of top quality
measuring products but one that also offers qualified
support for the lifetime of the equipment, backed up
by comprehensive services that ensure your staff canmake the very best use of the investment.
Sensor Systems

Test Equipment

Digital Scale and DRO Systems

Small Tool Instruments
and Data Management

Apart from the basics of calibration and repair,
Mitutoyo offers product and metrology training,as well as IT support for the sophisticated software
used in modern measuring technology. We can also
design, build, test and deliver measuring solutions
and even, if deemed cost-effective, take your criticalmeasurement challenges in-house on a sub-contract
basis.

Find additional product literatureand our product catalogue
https://www.mitutoyo.co.jp/global.html
Mitutoyo Corporation
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