Mitutoyo LSM-9506 User Manual

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LSM-9506

No.99MBC032A3

SERIES No.544

Laser Scan

Micrometer

User's Manual

Read this User’s Manual thoroughly

before operating the instrument. After reading,

retain it close at hand for future reference.

CONVENTIONS USED IN USER'S MANUAL

Safety Precautions

To operate the instrument correctly and safely, Mitutoyo manuals use various safety signs (Signal Words and Safety Alert Symbols) to identify and warn against hazards and potential accidents.

The following signs indicate general warnings:

Indicates an imminently hazardous situation which, if not avoided, will result in serious

DANGER

WARNING

CAUTION

injury or death.

Indicates a potentially hazardous situation which, if not avoided, could result in serious injury or death.

Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury or property damage.

The following signs indicate specific warnings or prohibited actions, or indicate a mandatory action:

Alerts the user to a specific hazardous situation. The given example means “Caution, risk of electric shock”.

Prohibits a specific action. The given example means “ Do not disassemble”.

Specifies a required action. The given example means “Ground”.

No. 99MBC032A

CONVENTIONS USED IN USER'S MANUAL

On Various Types of Notes

The following types of notes are provided to help the operator obtain reliable measurement data through correct instrument operation.

IMPORTANT •An

of a task. You cannot disregard this note to complete the task.

• An important note is a type of precaution, which if neglected could result in a loss of data, decreased accuracy or instrument malfunction/failure.

NOTE A

TIP A tip is a type of note that helps the user apply the techniques and procedures described in

note

mation that may only apply in special cases (e.g.. Memory limitations, equipment configurations, or details that apply to specific versions of a program).

the text to their specific needs. It also provides reference information associated with the topic being discussed.

Mitutoyo assumes no liability to any party for any loss or damage, direct or indirect, caused by use of this instrument not conforming to this manual. Information in this document is subject to change without notice.

important note

emphasizes or supplements important points of the main text. A note supplies infor-

is a type of note that provides information essential to the completion

NOTES FOR EXPORTING

If you export this product, contact the nearest Mitutoyo sales office in advance.

No. 99MBC032A

PRECAUTIONS

CAUTION

1. Safety Precautions

The Mitutoyo Laser Scan Micrometer LSM-9506 uses a laser beam.

CAUTION

1) “This LSM conforms to the US CDRH regulations in 21 CFR 1040 for a class II laser product.”

2) Do not look directly into the laser beam. (Never look into the emission window, even when no light is emitted.)

3) Do not observe the laser beam directly through optical equipment, such as a magnifying lens.

4) When measuring flat objects with mirror finishes, avoid looking at the reflection on the surface.

5) Close the beam shutter when not in use.

6) Do not open the emission unit cover except for servicing. The output power when the cover is open is about 1.2mW.

7) Do not remove the “CAUTION” or “WARNING” labels.

8) The laser beam does not harm human skin when irradiating.

9) “CAUTION – Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.”

LASER LIGHT-DO NOT

STARE INTO BEAM

1mW-650nm

CLASS II LASER PRODUCT

2. If an optional device is to be connected to this system, make sure that the optional device is also turned off.

3. Firmly tighten the screws of the cable connectors and interfaces to ensure shielding.

4. Do not touch the terminals of the connectors, otherwise contact may be poor.

5. Positively ground the Display Unit.

6. An error display may appear during operation. However, it may not always indicate a fault. If an error display appears, consult the “Maintenance and Inspection” section.

Do not open the covers provided on the emission unit and reception unit.

iii

No. 99MBC032A

SAFETY PRECAUTION LABELS LOCATED ON LSM-9506

CAUTION-Laser Light

when open

DO NOT STARE INTO

BEAM

AVOID EXPOSURE-LASER RADIATION IS EMITTED FROM THIS APERTURE

Beam attenuator

CAUTION-Laser Light

when open

DO NOT STARE INTO

BEAM

CAUTION-Laser Light DO NOT STARE INTO

when open BEAM

No. 99MBC032A

CAUTION

LASER LIGHT-DO NOT

STARE INTO BEAM

1mW-650nm

CLASS II LASER PRODUCT

LASER EMISSION INDICATOR

LASER EMISSION

Complies_with_21_CFR_1040.10 Mitutoyo_Corporation

1-20-1,_Sakado, Takatsu-Ku,_Kawasaki-Shi, Kanagawa_213,_JAPAN

Manufactured:

INSTALLING CONDITIONS

The Mitutoyo Laser Scan Micrometer LSM-9506 is both a precision optical instrument and a precision electric instrument, and it is designed for indoor use. Therefore, it must be carefully installed and the following conditions must be taken into consideration to attain the highest possible accuracy.

1. Vibration Install this unit if possible in a place where it will not be subject to vibration. If this unit is used for a long period of time in an environment where there are significant vibrations, the precision parts in this unit may be affected, resulting in the deterioration of measuring accuracy.

If this unit has to be used in an environment where vibration is significant, measures such as the laying of a vibration damping rubber pad under the unit must be applied to reduce the effect of vibration.

2. Dust Dust and airborne particles at the installation site adversely affect optical parts including the protective glass and electronic parts of the Measuring Unit. Place this unit in a place with as little dust and as few airborne particles as possible.

3. Direct sunlight If this unit is subjected to direct sunlight, the heat may deform this unit and affect the measuring accuracy.

4. Ambient temperature and humidity

WARRANTY

If this unit must be placed by a window where it will be subjected to direct sunlight, protect the unit by shading it.

This unit must be operated in an environment where the temperature is between 0 and 40˚C and the humidity is between 35 and 85% RH. Avoid installing this unit where there is significant temperature or humidity change.

Significant temperature and humidity changes may reduce measuring accuracy.

In the event that the Mitutoyo Laser Scan Micrometer (LSM) should prove defective in workmanship or material, within one year from the date of original purchase for use, it will be repaired or replaced, at our option, free of charge upon its prepaid return to us.

If the unit fails or is damaged because of the following causes it will be subject to a repair change, even if it is still under warranty.

1. Failure or damage due to inappropriate handling or unauthorized modification.

2. Failure or damage due to transport, droppage, or relocation of the machine after purchase.

3. Failure or damage due to fire, salt, gas, abnormal voltage, or natural catastrophe.

This warranty is effective only where the machine is properly installed and operated following this manual.

No. 99MBC032A

CONTENTS

CONVENTIONS USED IN USER'S MANUAL ................................................................. i

NOTES FOR EXPORTING ............................................................................................... ii

PRECAUTIONS ...............................................................................................................iii

SAFETY PRECAUTION LABELS LOCATED ON LSM-9506........................................iv

INSTALLING CONDITIONS .............................................................................................v

WARRANTY......................................................................................................................v

1. INTRODUCTION................................................................................................... 1-1

2. SETUP .................................................................................................................. 2-1

3. DISPLAYS AND KEY OPERATIONS.................................................................. 3-1

1.1 Outline ........................................................................................................... 1-1

1.2 Foreword ....................................................................................................... 1-1

1.3 Nomenclature ................................................................................................ 1-2

1.3.1 Display Unit....................................................................................... 1-2

1.3.2 Measuring Unit.................................................................................. 1-3

2.1 Unpacking and Acceptance Check............................................................... 2-1

2.2 Connecting the Cables ................................................................................. 2-1

2.3 Preliminary Checks ....................................................................................... 2-3

2.4 Initializing the LSM-9506 .............................................................................. 2-5

3.1 Outline of the Operation Modes ................................................................... 3-1

3.1.1 Outline of the Operation Modes ....................................................... 3-1

3.1.1.1 Overview................................................................................. 3-1

3.1.1.2 Setting the segment ............................................................... 3-3

3.1.1.3 Measurement interval (measurement time) ........................... 3-4

3.1.2 Outline of the Operation Modes ....................................................... 3-5

3.1.2.1 Basic setup mode................................................................... 3-6

3.1.2.2 Calibration mode .................................................................... 3-6

3.1.2.3 Measuring condition setup mode ........................................... 3-6

3.1.2.4 Other setup mode................................................................... 3-6

3.1.2.5 Statistic display mode............................................................. 3-6

3.1.2.6 Measurement mode................................................................ 3-7

3.2 Techniques and Terminology of Setup Functions ........................................ 3-9

3.2.1 Program ............................................................................................ 3-9

3.2.2 Basic setup ....................................................................................... 3-9

3.2.3 Function setup ................................................................................ 3-10

3.2.4 Setups according to the property of each workpiece..................... 3-10

3.2.4.1 Transparent object (Workpiece that transmits light) ............ 3-10

3.2.5 Latch (holding) of the displayed value ........................................... 3-12

3.2.6 Automatic measurement with an edge specification...................... 3-13

3.2.7 GO/NG judgment ............................................................................ 3-14

3.2.8 Abnormal data elimination .............................................................. 3-16

3.2.9 Offset/Zero-set ................................................................................ 3-17

3.2.10 Mastering ........................................................................................ 3-17

3.2.11 Reference value.............................................................................. 3-18

3.2.12 Data output conditions .................................................................... 3-18

3.2.13 Automatic workpiece detection <OD detection method, Position

detection method> .......................................................................... 3-19

No. 99MBC032A

3.2.14 Group judgment .............................................................................. 3-21

3.2.15 Recording the amount of light ........................................................ 3-22

3.3 Outline of the Display Contents .................................................................. 3-23

3.3.1 Display unit ..................................................................................... 3-23

3.3.2 Data display unit ............................................................................. 3-23

3.4 Outline of Key Operations .......................................................................... 3-25

3.4.1 Description of key functions ........................................................... 3-27

3.4.2 Example key operations ................................................................. 3-31

4. SETTING UP THE MEASURING CONDITIONS ................................................. 4-1

4.1 Basic Setup ................................................................................................... 4-1

4.1.1 Outline of the basic setup procedure ............................................... 4-2

4.1.2 Description of each mode................................................................. 4-3

4.1.2.1 Selecting and setting the function in the B0 mode ................ 4-4

a. Setting the resolution (Guidance: RES) ............................ 4-4

b. Setting the number of blank-out digits (Guidance: BLN) .. 4-4 c. Putting a comma after the thousandths digit

(Guidance: (,)) ................................................................... 4-5

d. Setting the buzzer function (Guidance: BUZZER) ............ 4-5

e. Setting the display latch timer (Guidance: LATCH) .......... 4-6

4.1.2.2 Selecting and setting the function in the B1 mode ................ 4-7

a. Setting the output function in the ready state

(Guidance: D.OUT) ............................................................ 4-7

b. Selecting the display message if Err-0 occurs

(Guidance: ERR-0 D) ........................................................ 4-7

c. Selecting the display message at the start of

measurement (Guidance: RUN D) .................................... 4-7

d. Selecting the averaging method (Guidance: AVG.M)....... 4-8

e. Setting the GO/NG judgment method

(Guidance: JDG.M) ............................................................ 4-8

f. Setting whether the target value is copied to the

reference value (Guidance: COPY) .................................. 4-8

4.1.2.3 Selecting and setting the function in the B2 mode ................ 4-9

a. Setting the workpiece type (Guidance: WORK.P) ............ 4-9

b. Setting the simultaneous measurement

(Guidance: PROG) ............................................................ 4-9

c. Selecting the method of specifying segments

(Guidance: SEG) ............................................................... 4-9

4.1.2.4 Selecting and setting the function in the B3 mode .............. 4-10

a. Setting the abnormal value elimination function

(Guidance: ADE) ............................................................. 4-10

b. Setting the automatic workpiece detecting function

(Guidance: AWDT) .......................................................... 4-10

c. Setting the number of scans (Guidance: SCAN) ............ 4-10

d. Setting the group judgment (Guidance: GTJ) ................. 4-11

e. Setting the group judgement output

(Guidance: GTJ D) .......................................................... 4-11

4.1.2.5 Selecting and setting the function in the B4 mode .............. 4-12

a. Setting the use of RS-232C port

(Guidance: RS-232C) ...................................................... 4-12

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No. 99MBC032A

b. Setting the RS-232C communication baud rate

(Guidance: BAUD)........................................................... 4-12

c. Setting the RS-232C communication data bits

(Guidance: LENGTH) ...................................................... 4-12

d. Setting the RS-232C communication parity bit

(Guidance: PARITY)........................................................ 4-13

e. Setting the delimiter for communication

(Guidance: DELIMT) ........................................................ 4-13

f. Setting the RS-232C line control

(Guidance: CONTRL) ...................................................... 4-13

4.1.2.6 B5: Reserved........................................................................ 4-14

4.1.2.7 Selecting and setting the function in the B6 mode .............. 4-14

a. Setting the use of DCU (Guidance: DCU) ...................... 4-14

4.2 Calibration ................................................................................................... 4-15

4.2.1 Calibration gages and gage stand ................................................. 4-15

4.2.2 Entering the calibration mode......................................................... 4-15

4.3 Positioning a Gage or a Workpiece............................................................ 4-19

4.4 How to read-in the amount of light ............................................................. 4-19

4.5 Setting Up the Functions ............................................................................ 4-20

4.5.1 Outline of the function setup mode ................................................ 4-20

4.5.2 Outline of each function setup mode ............................................. 4-22

4.5.3 Function setup mode ...................................................................... 4-23

4.5.3.1 F0: Setting the segment ....................................................... 4-23

4.5.3.2 F1: Setting the measurement interval

(measurement time) ............................................................. 4-25

4.5.3.3 F2: Setting the GO/NG judgment criteria............................. 4-27

4.5.3.4 F3: Setting the reference value............................................ 4-31

4.5.3.5 F4: Setting the offset value .................................................. 4-32

4.5.3.6 F5: Setting the data output conditions ................................. 4-34

4.5.3.7 F6: Setting the sample measurement .................................. 4-35

4.5.3.8 F7: Automatic workpiece detection setting .......................... 4-36

4.5.3.9 F8: Setting the group judgment ............................................ 4-37

4.5.3.10 Confirming the function setup contents................................ 4-38

No. 99MBC032A

5. MEASUREMENT MODE ...................................................................................... 5-1

5.1 Outline of the Measurement Mode ............................................................... 5-1

5.1.1 Setup in the measurement mode ..................................................... 5-1

5.1.1.1 Setup operation from the arrow key....................................... 5-2

5.1.1.2 Setup that can be made directly from each setup item key .. 5-4

5.2 Other Functions ............................................................................................ 5-5

5.2.1 Key lock ............................................................................................ 5-5

5.2.2 Displaying the measuring position .................................................... 5-5

5.3 Applied Measurement ................................................................................... 5-6

5.3.1 OD measurement of a precision-machined workpiece .................... 5-6

5.3.2 Measurement of magnet coil wire that runs at high speed.............. 5-7

5.3.3 Measurement of the lead pitch of a multiple-pin IC ......................... 5-8

5.3.4 Applied Measurement with Offset/Zero-Set Functions................... 5-10

5.3.5 Sample measurement..................................................................... 5-13

5.3.6 Applied measurement with automatic workpiece detection ........... 5-15

5.3.7 Applied measurement on a stepped round bar .............................. 5-17

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6. INTERFACE UNIT ................................................................................................ 6-1

6.1 RS-232C Interface ........................................................................................ 6-1

6.1.1 Specifications.................................................................................... 6-1

6.1.2 Connections ...................................................................................... 6-3

6.1.3 Printer interface ................................................................................ 6-5

6.1.3.1 Setting the printer ................................................................... 6-5

6.1.3.2 Setting the LSM-9506............................................................. 6-6

6.1.4 RS-232C commands ........................................................................ 6-6

6.1.5 List of commands ............................................................................. 6-8

6.1.6 List of response commands if an error occurs............................... 6-10

6.1.7 Format of response commands...................................................... 6-11

6.1.8 Other commands ............................................................................ 6-12

6.1.9 Details of command descriptions ................................................... 6-13

6.1.10 An example Program of RS-232C Communication ....................... 6-21

6.2 Digimatic Output Unit interface ................................................................... 6-22

6.2.1 Method of use................................................................................. 6-22

6.2.2 I/O specifications ............................................................................ 6-23

6.2.3 Timing chart .................................................................................... 6-24

6.2.4 Data format ..................................................................................... 6-25

7. INSPECTION AND MAINTENANCE.................................................................... 7-1

7.1 Display Unit ................................................................................................... 7-1

7.1.1 Display check.................................................................................... 7-1

7.1.2 Cleaning method............................................................................... 7-1

7.2 Measuring Unit .............................................................................................. 7-2

7.2.1 Cleaning optical parts ....................................................................... 7-2

7.2.1.1 Checking method of the reception signal using an oscilloscope .... 7-2

7.2.2 Replacement of protection glass ...................................................... 7-2

7.3 Error Messages and Remedies .................................................................... 7-3

7.4 Troubleshooting and Remedies .................................................................... 7-4

7.5 Fuse replacement ......................................................................................... 7-5

8. SPECIFICATIONS ................................................................................................ 8-1

8.1 Specifications ................................................................................................ 8-2

9. RESTRICTIONS ASSOCIATED WITH THE COMBINATION OF FUNCTIONS,

TABLES OF THE BASIC SETUP MODES ......................................................... 9-1

9.1 Restrictions Associated with the Particular Combination of Functions ........ 9-1

9.2 List of Setup Modes ...................................................................................... 9-3

9.2.1 List of basic setup modes................................................................. 9-3

9.2.2 List of calibration functions ............................................................... 9-4

9.2.3 Reading in the amount of light ......................................................... 9-4

9.2.4 List of function setup modes ............................................................ 9-5

SERVICE NETWORK

No. 99MBC032A

INTRODUCTION

1.1 Outline

This system is an accurate, non-contact measurement system capable of measuring workpiece dimensions at a high speed using a highly directional scanning laser beam.

This non-contact optical measuring system is capable of measuring workpieces which are difficult to measure with conventional measuring instruments. It performs simple and accurate measurement of brittle or elastic objects, objects at high temperature, objects which must be kept clean, and soft objects which may be deformed and suffer dimensional changes under the measuring forces used.

1.2 Foreword

This chapter describes the Laser Scan Micrometer (LSM) models and nomenclature of the Display unit and the Measuring unit.

WARNING

The Measuring Unit uses a laser. For safe operation, carefully read and follow the “Safety Precautions on Use of Laser” section described in the user’s manual that is supplied with each Measuring Unit.

The LSM-9506 is classified into two types, the mm/E type and mm/inch type. This User’s Manual explains about the mm/E type. In case of using the mm/inch type, read this User’s Manual with replacing the “E” indication with “inch (in)”.

No. 99MBC032A

1 - 1

1.3 Nomenclature

This section gives the name of each part in the LSM system.

1.3.1 Display Unit

(1) Front panel

(2) Displays and keys

Mitutoyo

LASER SCAN MICROMETER LSM-9506

LASER EMISSION

Power switch

SHIFT

READ

Workpiece Position indicator LED

Data display

PROG.

LOCK CAL OFFSET S.E DUAL

+NG

–NG GO

BUSY

RUN

Status indicator LEDs (lit/unit)

Laser Emission indicator LED

RUN

C.RUN

S.PR

SET

Operation keys

RUN

SHIFT

READ

H.CAL

L.CAL

LOCK

UNIT

C.RUN

•0

A.CL M.CL

S.PR

+/-

STAT

S.E

SET

LIMIT

MASTER OFFSET

REF

ENT

1 - 2

H.CAL

L.CAL

LOCK

UNIT

•0

A.CL

M.CL

+/-

STAT

S.E

LIMIT

MASTER

OFFSET

REF

ENT

No. 99MBC032A

(3) Rear panel

AC power inlet

Fuse holder

GND terminal

1. INTRODUCTION

Serial number label

Scanning signal connector

Digimatic output connector

TIP The terminal located at the left end of the power input terminal and marked (by a

symbol or ) is the grounding terminal to keep the potential of signal line of this unit equal with other instrument connected. It is used to enhance resistance against electrical interference.

1.3.2 Measuring Unit

(1) Measuring Unit

Emission unit

Foot switch

RS-232C connector

Remote interlock connector

Emission window

Reception window

Shutter

Reception unit

No. 99MBC032A

Display unit

1 - 3

MEMO

1 - 4

No. 99MBC032A

SETUP

This chapter describes the connection between the Display Unit and Measuring Unit.

2.1 Unpacking and Acceptance Check

Your LSM has been thoroughly inspected prior to shipment. The mechanical, electrical, and optical systems are guaranteed to operate properly.

Unpack the package and check that the main unit is not damaged, and all the accessories listed are present.

Contact Mitutoyo if anything is damaged or missing.

2.2 Connecting the Cables

Make sure that the power switch is turned off (turn the key switch counterclockwise to align with “O”, then pull it out), then connect the cables according to the following procedure.

Step 1: Connecting the power cord and GND lead wire

Connect the supplied power cord to the AC connector on the rear panel of the main unit. Also be sure to ground the main unit with the GND lead wire for improved resistance to noise.

Grounding must be done properly: Connect the supplied grounding wire, after cutting it to the minimum length, to the grounding terminal provided on the Display Unit. This unit operates as a precision analog processor and, at the same time, a high-speed calculation unit. To enhance resistance against electrical interference and to increase safety, do not neglect grounding.

No. 99MBC032A

2 - 1

Step 2: Checking the remote interlock connector

(

)

Make sure that the short-circuiting pin is inserted into the “REMOTE INTERLOCK” connector on the rear panel of the Display Unit. If this short-circuiting pin is not inserted, laser emission is disabled, even if the power switch is on.

To emergency stop laser emission, refer to the following diagram.

Switch ON: Laser emission ON Switch OFF: Laser emission OFF

Short-circuiting pin

Switch

5V, 3mA

Applicable connector: PJ-2

Manufacturer: Sato Parts

Step 3: Connecting the interface

For information about the procedure used to connect the interface, refer to Section

6.1, “RS-232C Interface” and Section 6.2, “Digimatic Output Unit Interface”.

IMPORTANT Note the following when making cable connections.

Always make connection or disconnection with the power cord unplugged. In addition, before connecting to the interface make sure that the power to all other units connected or to be connected are also off.

Do not disassemble this unit. This unit is a precision instrument. Should it be disassembled by the user, its accuracy can not be guaranteed even within the term of its warranty. And, there will be a charge for repairs.

Observe the following to avoid electric shock.

1. Do not remove the protective cover on which the seal is stuck to. Otherwise, an

electric shock may result.

2. Do not remove the seal, shown at the left.

2 - 2

No. 99MBC032A

2.3 Preliminary Checks

The necessary connections should be completed by following the procedure described in the previous chapter. Simplified operation checks are described here.

Step 1: Fully open the lens cap and shutter of the Measuring Unit.

Fully open the lens caps and beam shutters of both the emission unit and reception unit to ready the laser beam for emission. The lens caps should be completely removed, and the shutters should be as shown in the diagram below.

If the shutter is closed If the shutter is open

Step 2: Power on

• Turn the power key switch on the Display Unit clockwise until it is in the I (power on) position and the power is on.

• This unit enters the self check mode and all the LEDs and segments turn on. They will turn off shortly, and eights will be displayed in the upper display section.

When is displayed across the upper display section, the unit will turn off shortly. This is followed by the self check on the lower display section.

2. SETUP

Emission window Shutter window

Shutter

PROG PROG

PROG

• In the lower display section eights will appear sequentially from the left to right.

• After is displayed across the lower display section, it will turn off shortly.

PROG PROG

• Measurement is started. The LASER EMISSION LED turns on and the BUSY LED starts flashing to indicate the measurement has started from the ready state.

Since the objective segment has been set to

PROG

“SEG 1” at the factory, the displayed measurement shows the laser scanning range of the Measuring Unit.

Here, the Display Unit is found to be normal because the scanning range is displayed. Proceed to Chapter 3, “FUNCTIONS AND KEY OPERATIONS”, to custom set up each function.

No. 99MBC032A

2 - 3

• An error may be displayed at this stage,

PROG

however, the display at the right is not actually an error. Check the shutter of the Measuring Unit. For information about other errors that may result refer to Section 7.3, “Error Messages and Remedies”.

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No. 99MBC032A

2.4 Initializing the LSM-9506

After making sure that this unit is operating normally, initialize the LSM-9506. The initialization procedure is as follows: Step 1: Turn off the power.

2. SETUP

Step 2: Turn on the power while holding down the

Hold down the

Step 3: When the self check has been completed, the

display shown at the right will appear. To initialize, press the process has been completed, the display restores the initial conditions that existed just after the power on. To abort initialization press a key other than the In the former case the initialization process will be aborted and the initial display at power-on will be restored.

key for approximately 2 seconds, even after the power is on.

key. When the initialization

ENT

key.

PROG

key or turn the power off.

ENT

IMPORTANT Initialization will clear all the customer setup data and will restore the factory-setups.

Customize the setups again as necessary.

No. 99MBC032A

2 - 5

MEMO

2 - 6

No. 99MBC032A

DISPLAYS AND KEY

OPERATIONS

This Display Unit is provided with many useful functions that can be customized according to the user's needs.

This chapter describes these functions and key operations.

3.1 Outline of the Operation Modes

3.1.1 Outline of the Operation Modes

In order for the user to understand the measurement principle of the LSM, the following paragraphs describe about the system block diagram, segments (measurement positions) and measurement interval (measurement time).

3.1.1.1 Overview

Unlike light emitted from natural sources, a laser provides extremely fine, rectilinear beams which do not diffuse (coherent light beams).

Using the properties of the laser beam, the Mitutoyo Laser Scan Micrometer (LSM) moves a scanning laser beam over the workpiece and determines its dimensions by measuring the duration in which the beam is obstructed by the workpiece.

No. 99MBC032A

Emission unit Reception unit

Polygon mirror

Laser power source Semiconductor laser

Motor driving pulse

CPU

Motor Colimator lens

Clock pulse

ROM RAM

Data display

Keyboard

Counter

RS-232C

Photoelectric element (reset signal generation)

Digimatic Out-

Gate Edge signal

put Unit I/F

Workpiece

Segment selection circuit

Foot switch

Condenser lens

Amplifier

ttt

Edge signal

Reception device S

3 - 1

The configuration of the system is shown in the block diagram described in the previous page. A laser beam emitted from the laser oscillator is directed at the polygon mirror which rotates at high speed and is synchronized by clock pulses. The laser beam that is reflected by the polygon mirror is then collimated by the collimator lens towards the workpiece. As the polygon mirror rotates, this horizontal beam scans the workpiece and the beam not obstructed by the workpiece will reach the photoelectric element through the condenser lens and induce an output voltage in the photoelectric element. The output voltage will change according to the duration over which the laser beam is obstructed. Counting pulses generated during that period are used to determine the dimension of the obstructed portion. This data is sent to the CPU for processing and the dimensions are displayed digitally.

Consequently, either the dimensions of the workpiece (shadowed areas) or workpiece clearances (highlighted areas) can be determined by specifying the segments to be measured.

TIP In the above system block diagram, the laser beam passed through the collimator

lens is made parallel and, at the same time, stopped down so that the beam diameter is minimized at the measurement position.

3 - 2

No. 99MBC032A

3.1.1.2 Setting the segment

Set the objective portion of a workpiece to be measured. The highlighted and shaded portions created when the laser scans over the workpiece are

controlled with each assigned number. In the basic setup a selection must be made from one of two cases: case where there are 1 to 4 highlighted and shaded sections, and case where there are 1 to 127 similar sections. In the former case the portions are controlled through the segment number, and are simply called segments. In the latter case the portions are controlled by the edge number (edge number is between 1 and 255) and called edges. Edge numbers equal to or greater than 256 are not available.

3. DISPLAYS AND KEY OPERATIONS

Segment specification

Highlight 1 Shade 1 Highlight 2 Shade 2 Highlight 3

Direction of laser scanning

Shade 3 Highlight 4

SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7

• A maximum of 4 highlighted sections and a maximum of 3 shaded sections can be measured.

• Multiple segments can be specified at the same time.

• Specify segments 1 to 3 for a transparent object.

Edge specification

EDGE1

Highlight 1

Shade 1 Highlight 2 Shade 2

Highlight 127

Direction of laser scanning

Shade 127 Highlight 128

EDGE2 EDGE3

EDGE4 EDGE5

EDGE254 EDGE255

EDGE256

• A maximum of 127 highlighted sections and a maximum of 127 shaded sections can be measured.

• Always specify the start edge and finish edge numbers. These two edges can be either continued or separated. However, they must not be identical.

• Edge numbers can not be specified for a transparent object.

• If automatic measurement is specified in the basic setup, intervals, outside diameters, or gaps between the same shape of multiple pins can be automatically measured.

No. 99MBC032A

3 - 3

3.1.1.3 Measurement interval (measurement time)

A measurement interval (measurement time) varies depending on the averaging method and the number of scans selected for the measurement data.

There are two types of averaging method: the arithmetical average and the moving average. Select the one best suited for the user’s purpose.

1) Arithmetical average

• If a moving workpiece is measured, the OD of the workpiece is determined by averaging the measured data taken from each section (a: first measurement, b: second measurement,

.... n: nth measurement) of the workpiece the specified number of averaging times, as

shown below.

2) Moving average

first measurement

second measurement

ban

Moving workpiece

. . .

nth measurement

Moving direction

• One of the following number of averaging times can be selected: 1, 2, 4, 8, ....1024, 2048.

(If extra fine wire measurement is specified in the basic setup, the number of averaging times can be selected from between 16 and 2048.)

• This is suitable for measuring a still object or the run-out of rollers, etc.

In the moving average method, a measurement interval identical to that in the arithmetical average is divided into finer sections such as a1 (1st measurement), a2 (2nd measurement), -

- - , an (nth measurement). Each measurement is performed almost in parallel. If, for ex-

ample, the number of averaging times is set to 512, the first measurement requires the amount of time that corresponds to 512 scans. However, for the second measurement onward, only the time for 16 scannings is required. With respect to a workpiece with a changing OD, this method provides data with smooth variation because of the many pieces of data, and also quickly detects the trend of workpiece OD variation.

Measurement with

arithmetical averaging

Measurement with

arithmetical averaging

3 - 4

. . .

Moving workpiece

an measurement

. . .

a2 measurement a1 measurement

Moving direction

Output of an measurement Output of a2 measurement Output of a1 measurement

• One of the following number of scans can be selected: 32, 64, 128, ....1024, 2048.

• This method is suitable for the feedback control of wire drawing machines and extruding machines.

No. 99MBC032A

3.1.2 Outline of the Operation Modes

The LSM system has the following modes: 1: Basic setup mode, 2: Calibration mode, 3: Function setup mode, 4: Other setup mode, 5:

Statistical result display mode, and 6: Measurement mode.

3. DISPLAYS AND KEY OPERATIONS

Power ON

LOCK

4: Other setup mode

5 : Statistical result display mode

Error check

SET

6 : Measurement mode

, ,

ENT

UNITUNIT

LOCK

( )

UNIT

Ready state

RUN

Measurement in progress (Program being executed)

C.RUN

LOCK

SHIFT

H.CAL L.CAL

ENT

• Single-run measurement

SHIFT

S.PR

• Continuous-run

• measurement

( )

RUN

SET

•

LIMIT

• , , ,

Measured data display (Latched display)

S.PR

SET

( )

• Latch timer

• @

SET

•

• ( , , )

Power ON +

SET

1 : Basic setup mode

2 : Calibration mode

( , )

H.CAL L.CAL

MASTER OFFSET

REF

SHIFT

3 : Function setup mod

MASTER

LIMIT

OFFSET

REFENT

No. 99MBC032A

3 - 5

3.1.2.1 Basic setup mode

• This mode is used to customize the basic setup conditions, including the resolution, interface conditions, and available functions, according to the measurement requirements. For more information, refer to Section 4.1, “Basic Setup”.

• To enter the basic setup mode turn on the power (turn the key switch clockwise from the “O” position to the “I” position) while holding down the key for about 2 seconds to initiate the basic setup mode.

3.1.2.2 Calibration mode

• Depending on the environment in which the LSM is used, measurement errors may result. Therefore, always perform calibration prior to use, taking the measuring range and environmental conditions into account. If calibration is performed, the errors described above will be reduced and high accuracy will be ensured.

• Before performing calibration, always make the setups for resolution, simultaneous measurement and available segments in the basic setup mode. If this order is reverse, the previously set calibration values may be discarded.

• For more information, refer to Section 4.2, “Calibration”.

• Press the

key to enter the HI CAL mode; and press the

H.CAL

CAL mode.

3.1.2.3 Measuring condition setup mode

key. Hold down the

SET

key to enter the LOW

L.CAL

SET

• This mode is used to set up measuring conditions, including segments (objective portion of workpiece to be measured) and GO/NG judgment criteria.

• Press the

• Each of the setup item to be established.

• Press the key to enter the setup operation for the setup item which is used most often.

3.1.2.4 Other setup mode

• This mode is used to set the key lock and to set the unit of measurement.

• Press the

LOCK/UNIT

• Press the

3.1.2.5 Statistic display mode

• Displays the statistical processing results.

• Press the

• Press the results to be printed.

key to enable all the function setup items established to be set in a batch.

SET

LIMIT,SHIFT,MASTER/OFFSET

SHIFT

and

LOCK/UNIT

key to turn on and off the key lock; and press only the

, and

keys allows the individual function

REF

key to enter the unit change mode.

SHIFT

and

and and

key to enter the measuring position display mode.

READ

STAT/S.E

S.PR/PRINT

keys in the ready state to enter the statistic display mode. keys in the ready state to allow the statistical processing

3 - 6

No. 99MBC032A

3.1.2.6 Measurement mode

This mode can be divided into the following operational states:

1) Measurement in the ready state

• This is the measurement mode that is entered immediately after the power is turned on or if another measurement mode is aborted by pressing the command from the RS-232C interface).

• It is used to establish setups for calibration and available functions, which are not part of the basic setup items, or to enter another measurement mode including single-run measurement.

• Usually GO/NG judgment will not take place for measurement in the ready state, however, GO/NG judgment can be made in the basic setup mode.

• Measurements in the ready state are unavailable for statistical processing.

2) Single-run measurement

• If the one session of measurement is performed and the results will be automatically subject to GO/NG judgment. In addition, the measured data will be outputted for the RS-232C interface, Digimatic Output Unit interface, and printer. The measured data will be held (latched for the specified period) in the display.

• This data will be available for statistical processing.

3. DISPLAYS AND KEY OPERATIONS

key (or by the “CL”

key (otherwise input “R” command via the RS-232C interface) is pressed,

RUN

3) Continuous-run measurement

• If the

key (otherwise input “CR” command via the RS-232C interface) is pressed,

C.RUN

one session of measurement is started and repeated the specified number of times. The measured data will be automatically subject to GO/NG judgment. In addition, the measured data will be outputted for the RS-232C interface, Digimatic Output Unit interface, and printer.

• Press the sured data on the display. If the

RUN

key again to terminate the measurement and hold the mea-

C.RUN

key (or “CL” command via the RS-232C inter-

face) is pressed halfway, the measurement is aborted and the ready state is returned to.

• The measurements are available for statistical processing.

4) Zero-run measurement

• A measurement where the number of samples is set to “0” is called a “zero-run measurement”.

• If the pressed, single-run measurement is started and repeated until the

key (otherwise input the “R” command via the RS-232C interface) is

RUN

key is pressed again (or the “STOP” command is inputted via the RS-232C interface). From the measured data the calculation items (mean, maximum value, minimum value, and range) that have been set for the sample measurement will be calculated and the resulting data will be automatically subject to GO/NG judgment. In addition, the measured data will be outputted for the RS-232C interface, Digimatic Output Unit interface, and printer. The measured data will be held on the display.

• The measured data are available for statistical processing.

• This is suitable for run-out measurement and cylindricity measurement.

No. 99MBC032A

3 - 7

5) Sample measurement

• A measurement where the number of samples is set to “2~999” is called a “sample measurement”.

• In practice this will take place as a single-run measurement or a continuous-run measurement. From the measured data the calculation items (mean, maximum value, minimum value, and range) that have been set for the sample measurement will be calculated and the resulting data will be automatically subject to GO/NG judgment. In addition, the measured data will be outputted for the RS-232C interface, Digimatic Output Unit interface, and printer.

• The measured data are available for statistical processing.

• This is suitable for run-out measurement and cylindricity measurement.

6) Statistical processing

• Measured data from single-run and continuous-run measurements can be statistically processed (i.e. the number of measurement times, standard deviation, maximum value, minimum value, mean, and range are calculated). These statistical processing results can be outputted for the display, printer (statistical memory for all programs will be cleared after printout), and RS-232C interface.

• Press the

STAT/S.E

key (or input “ST” command via the RS-232C interface) to start statistical processing, and press it again (or input the “NST” command via the RS-232C interface) to terminate statistical processing.

• Press the

A.CL/M.CL

(case of a simultaneous measurement), and press the

key to clear the statistical memory of the foreground program

SHIFT

and

A.CL/M.CL

keys to

clear the statistical memory of all the programs.

• These statistical results data will be stored in memory while the power is on, and will be lost when the power is turned off.

3 - 8

No. 99MBC032A

3. DISPLAYS AND KEY OPERATIONS

3.2 Techniques and Terminology of Setup Functions

3.2.1 Program

• A measurement will automatically be performed according to the registered (programmed) contents including the segment (feature to be measured) and GO/NG judgment criteria, etc., in advance. Registration is performed in the function setup mode.

• This unit can hold a maximum of 10 programs, which may include various settings suitable for up to ten kinds of workpieces.

• The user can select, in the basic setup, whether these ten programs are used as individual programs (referred to as “single measurement”) or as five pairs of programs (referred to as “simultaneous measurement”).

a) Single measurement

One session of measurement is performed according to the one specified program. This is the factory default.

b) Simultaneous measurement

• In one measurement session two programs are executed at one time as a pair. These pairs are formed as shown in the figure below.

• To run a pair of programs, either of the two can be specified via numeric keys to called “background” program.

and the one specified is called “foreground” program, and its counterpart is

3.2.2 Basic setup

Pair 4: Program No.4

Program No.9

Program No.8

Pair 2: Program No.2

Pair 1: Program No.1

Pair 0: Program No.0

Program No.6

Program No.5

Pair 3: Program No.3

Program No.7

• This is used to customize the basic setup conditions, including the resolution, available functions, and interface conditions, according to the measurement requirements.

• This basic setup must be performed at the beginning of a measurement. Note that changing the setup of resolution, or simultaneous measurement in this basic setup cancel the existing calibration values and function setup.

• The basic setup mode is entered by turning on the power while holding down the

SET

key. Note that no response will be made to RS-232C in the basic setup mode.

• For more information, refer to Section 4.1, “Basic Setup”.

No. 99MBC032A

3 - 9

3.2.3 Function setup

• Use this procedure to set up the conditions necessary for measurement. For each program number register measurement conditions including the segment (part feature to be measured), measurement interval (measurement time), and GO/NG judgment criteria that are the best suited for the objective workpiece.

• To enter the function setup mode press the

LIMIT,SHIFT+MASTER/OFFSET

, and

REF

SET

keys allows the individual setup item to be established, and the key enters the setup operation for items which are most frequently accessed for set up.

• For more information refer to Section 4.5, “Setting Up the Functions”.

3.2.4 Setups according to the property of each workpiece

For measuring workpieces that transmit light or have a dimension smaller than the diameter of the scanning beam it is critical to make setups that take into account the properties of the workpiece.

3.2.4.1 Transparent object (Workpiece that transmits light)

a) Round bar

• Workpieces such as fiber optics and glass tubes are more or less transparent, while

workpieces made of steel are not. This requires different segment settings. The segment settings for an opaque object and a transparent object are as follows:

• Setup for measurement of transparent or opaque object is possible in the basic setup.

key in the ready state. Each of the

Laser scan direction

Transparent

Workpiece

Photo-electric signal

For opaque object

Binary voltage (SHL)

Segment 1Segment 1

Segment 2

Segment 3 Segment 2

Segment 4

Segment 5 Segment 3

For transparent object

3 - 10

No. 99MBC032A

3. DISPLAYS AND KEY OPERATIONS

b) Plate (Sheet)

• If the workpiece being measured is a transparent plate (sheet) with edges that are not chamfered or beveled, there may not be a sharp contrast in the amount of light at the transition from the highlighted portion to the shaded portion. As a result, the voltage generated by the incident light on the photo-electric element can not reach the threshold voltage level (SHL), and Segment 2 is determined to not exist (Err-0).

Photo-electric signal

Laser scan direction

Workpiece

Measurement is aborted

Ideal edge signal

Binary voltage level (SHL)

because a sharp edge can not be determined.

• For measuring a transparent plate-shaped workpiece Take the following precautions:

1. Incline the workpiece.

By inclining the workpiece it is possible to attain a sharp edge from the light contrast. In this case: Measurement : W = W0 (workpiece dimension) x cos θ

Direction of light is turned, and is not incidental to the photo-electric element.

Workpiece

2. Chamfering

Chamfer the workpiece edge by W. Be sure that W will be larger than 0.4 mm.

Workpiece

No. 99MBC032A

Direction of light is turned, and is not incidental to the photo-electric element.

3 - 11

3. Change the SHL

Change the standard SHL (50%) of the photo-electric signal generated. The SHL can be changed in a range between 50% and 90%. First place a reference workpiece in the measuring region and connect the oscilloscope probe to the SCAN SIG connector located on the rear panel of the Main Unit. Observe the signals. Set the SHL to the center of the waveform that corresponds to the shadow from the smaller edge.

• This modification should be performed by sending the appropriate command to the RS-232C, as follows. “SHL75” ... Set the SHL to 75%. “SHL50” ... Set the SHL to 50%, which is standard.

• For more information, refer to Sections 4.5, “Setting up the functions” and 6.1.9, “Details of command descriptions”.

• If the SHL has been modified, perform calibration again.

• With the width measurement of transparent film tape for example, measurements results may have a certain degree of dispersion. Therefore, it is recommended that a comparison measurement be performed using a reference tape.

Photo-electric signal

Laser scan direction

Workpiece

v 1

Standard SHL (50%)

New SHL: Set to 50 (1+v2/v1)%

3.2.5 Latch (holding) of the displayed value

• In a single-run measurement, etc., GO/NG judgment will be continued while the measured data is latched (held) on the display for the specified period of time. After the set period elapses, system operation returns to the ready state.

• Set up the display latch timer in the basic setup.

• While the display is being latched, input from the RS-232C is still valid.

v 2

v1: Peak voltage of photo-electric signal v2: Larger voltage of the two at edges

(as generated at the edge with better transmittance)

3 - 12

No. 99MBC032A

3. DISPLAYS AND KEY OPERATIONS

3.2.6 Automatic measurement with an edge specification

• If the edge specification is made, it is possible to automatically measure IC or connector leads with respect to their pitch (even intervals), outside diameter, or gap. This is suitable for inspecting the IC lead bend, etc.

Outside

diameter

Gap

Laser scanning direction

Pitch

• This function is only in effect if the necessary setups are made for edge specification in the basic setup.

• In the function setup designate whether automatic measurement should be performed (for pitch/outside diameter/gap measurement) or not (manual measurement). Also designate both the start and finish edges.

• This is available in combination with automatic workpiece detection.

• If automatic measurement has also been selected, the following will take place. a) In the ready state the first objective portion of the workpiece to be measured will be

displayed.

No. 99MBC032A

b) Automatic measurement will be involved in a single-run measurement or continuous-

run measurement. If “Err-0” (insufficient number of edges to be measured) is detected, the measuring operation is stopped for the single-run measurement, and the collected measured data is cleared for continuous measurement to wait for a proper workpiece to be loaded.

c) If the measured data is found to be ±NG, the first source of the ±NG will be displayed

and the measuring operation is stopped. If GO results, the mean of all measurements is displayed.

d) In the ready state, the first objective portion of the specified automatic measurement

item will be displayed.

e) If the measured data falls within the range of GO, the elapsed measurement time was as

follows: (Number of measurement edges) x (measurement interval) + (calculation time: 20 ms)

f) The W.P. LED shows the current portion of the workpiece being measured.

3 - 13

3.2.7 GO/NG judgment

• All the measured data are subject to GO/NG judgment. To enable, set the GO/NG judgment criteria in advance.

• The following settings can be made in the basic setup. a) The method of tolerance judgment can be selected from (Lower limit value and upper

limit value), multi-limit selection (7 limits) and (Target value and tolerance values: upper tolerance value and lower tolerance value). The judgment result with the multi-limit selection will be outputted via RS-232C interface.

b) Simultaneous measurement can be specified. The judgment result will be outputted via

RS-232C interface.

c) For (Target value and tolerance values), the user is permitted to select whether the

target value is to be copied to the reference value. If it is, the setup guidance for the reference value will not appear.

d) Even in the ready state it is possible to select whether tolerance judgment is performed.

However, this data is not available for statistical processing.

e) Abnormal data elimination, tolerance judgment, group judgment, and analog output

can be performed in a single-run measurement, zero-run measurement, sample measurement, and continuous-run measurement. The judgment result will be indicated by the -NG (red LED), GO (green LED), and +NG (red LED) indicators and outputted to the RS-232C (including printer) interface.

f) The following tables show the relationship between the measured data and tolerance

judgment method

1) (Lower and upper limit values)

tnemgdujGN/OG )teseraseulavtimilreppudnarewolehthtobfidegduj(tnemerusaeM

GN-eulavtimilrewoL<tnemerusaeM

OGeulavtimilrewoL ≤ eulavtimilreppU<tnemerusaeM

GN+tnemerusaeM ≥ eulavtimilreppU

2) (Target value and tolerance values)

tnemgdujGN/OG

GN-)ti

GN+tnemerusaeM ≥ )eulavecnarelotreppu+eulavtegraT(

)eulavecnarelot

)teseraeulavecnarelot

milecnarelotrewol+eulavtegraT(<tnemerusaeM

)eulavecnarelotrewol+eulavtegraT( ≤ reppu+eulavtegraT(<tnem

erusaeM

reppudnaeulavecnarelotrewol,eulavtegratehtfidegduj(tnemerusaeM

3 - 14

No. 99MBC032A

3. DISPLAYS AND KEY OPERATIONS

3) If all limits from L1 to L6 are set for multi-limit selection

tuptuonoitcelestimil-itluMtnemgdujGN/OG.tesera6Lot1LmorftnemerusaeM

1LGN-1L<tnemerusaeM 2LOG1L ≤ 2L<tnemerusaeM 3LOG2L ≤ 3L<tnemerusaeM 4LOG3L ≤ 4L<tnemerusaeM 5LOG4L ≤ 5L<tnemerusaeM 6LOG5L ≤ 6L<tnemerusaeM 7LGN+6L ≤ tnemerusaeM

4) If only L1 and L2 are set for multi-limit selection

tuptuonoitcelestimil-itluMtnemgdujGN/OG

1LGN-1L<tnemerusaeM 2LOG1L ≤ 2L<tnemerusaeM

7L~3LGN+2L ≤ tnemerusaeM

.tesera2Ldna1LylnOtnemerusaeM

enoylnofidemrofrepebtonlliwtnemgduJ(

).tessiegats

No. 99MBC032A

3 - 15

3.2.8 Abnormal data elimination

• The abnormal data elimination function eliminates measurements that are very different from those specified for the machined workpiece, from the measurement data (neither the measurement is displayed nor is data output performed). If, for example, the grindstone of a centerless grinder is controlled based on the measured data from the LSM, it is possible that a large measurement error may be created due to the coolant used with the workpiece. As shown in the figure below where foreign matter (with a height of h) adheres to within the averaging region L of the workpiece (with a diameter of D). An abnormal outside diameter results in the region of l and the displayed measurement will be (D + lh / L). As the result the grinder is subject to improper control that involves some error.

Because the use of this function can eliminate abnormal measurement data generated due to the adhered foreign matter, the grindstone can be controlled and fed properly.

D Workpiece

Workpiece feed direction

• Judgment of valid data or abnormal data will be performed at each measurement interval. Valid data includes those satisfy the following relation: Lower abnormal limit (Measurement) < Upper abnormal limit. All other data will be discarded as abnormal data.

• The following table shows the relationship between measurements and upper and lower abnormal limits.

etanimiletonoD/etanimilE

etanimilEtimilla

etanimiletonoD

)tnemerusaemasadetpecca(

etanimilEtnemerusaeM ≥ timillamronbareppU

llamronba

timi

).teserastimillamronba

mronbarewoL<tnemerusaeM

timillamronbarewoL ≤ reppU<tnemerusaeM

rewoldnareppuehthtobfidegduJ(tnemerusaeM

• In the basic setup select whether this abnormal data elimination function should be used. If it is the setting of (lower abnormal limit and upper abnormal limit) should be performed before actual tolerance judgment.

• Abnormal data elimination function effects in single-run and continuous-run measurements.

• If “Err-0” (specified workpiece not present) is displayed in the sample measurement, the valid data collected will be discarded.

3 - 16

No. 99MBC032A

3.2.9 Offset/Zero-set

This function is used to measure the difference between the workpiece and the reference gage or to measure the workpiece that is larger than the measuring range of the LSM.

a) Offset

b) Zero-set

c) Direction

3. DISPLAYS AND KEY OPERATIONS

• In this system the operation of setting the reference gage dimension is called the offset operation.

• This function is applied to measure the absolute dimension of a workpiece.

• Setting the reference gage dimension to “0.0” for the purpose of comparing it with a workpiece dimension is called the zero-set.

• This function is applied to measure a deviation from the reference gage dimension.

Depending on the objective portion of measurement of a workpiece, the positive direction (set as “0”) or negative direction (set as “1”) must be set. If, for example, the shaded portion of D in the following diagram is measured, the direction must be set as positive (0). If the highlighted portion (gap) of W is to be measured for determining the workpiece dimension L, the direction must be specified as negative (1).

Set as positive (0) Set as negative (1)

3.2.10 Mastering

Reference piece

Workpiece

Reference

lane

• Offset operation takes about 1 second to determine the compensation value by measuring the reference gage.

• Offset value will be ineffective if the segment or edge number is changed (Offset value is unique to each segment or edge).

• If the objective workpieces are high-precision gages that are machined successively, the above described offset/zero-set values may need to be fine-adjusted to the master. This fine-adjustment is called mastering. After mastering, the total compensation value will be:

(Offset value/zero-set value) + (±Mastering value) Setting a positive (+) mastering value allows the measurement of a workpiece OD to be greater than the raw measurement, and setting a negative (-) mastering value allows the measurement of a workpiece OD to be smaller than the raw measurement.

No. 99MBC032A

• Because no measurement is required for this mastering, the reference gauge is not required either.

• Mastering will be cancelled if subjected to offset/zeroset.

• Set the reference gage dimension with the offset function and perform mastering.

3 - 17

3.2.11 Reference value

• In the basic setup the following conditions can be set. a) Whether the target value of GO/NG judgment is being copied to the reference value. If

this is selected, the setup guidance for the reference value will not be displayed.

b) It is also possible to set so that tolerance judgment can take place in the ready state.

• If the reference value is being set the deviation value (Measured data-reference value) will be output for the RS-232C interface and the printer if single-run measurement or continuous-run measurement is performed.

3.2.12 Data output conditions

• In single-run measurement or continuous-run measurement, measured data can be outputted for each measurement if ±NG occurs, or at given intervals to the RS-232C interface, printer, or Mitutoyo Digimatic Output Unit interface.

C.RUN C.RUN

RS-232C DCU

—— — —

— —

—

C.RUN

RUN

Remark

The periodical output timer can be set

The periodical output timer can be set3

The periodical output timer can be set5

Data output condition Printer

0 1 2

6 7 8 9

: Outputted for each measurement if or key, etc., is pressed. : Press the or key to trigger the measurement. The measured data will be outputted if it falls on GO. : Press the or key to trigger the measurement. The measured data will be outputted if it falls on ±NG. : No output will be made.

—

RUN

3 - 18

No. 99MBC032A

3. DISPLAYS AND KEY OPERATIONS

3.2.13 Automatic workpiece detection <OD detection method, Position detection method>

• Automatic workpiece detection is performed for continuous-run measurement, where measurement starts with no specified workpiece present (Err-0), then proceeds to automatic detection of the workpiece, followed by measurement repeated number of times. No specified workpiece present (Err-5) also refers to the workpiece outside the upper and lower detection limits.

• Whether automatic workpiece detection is performed is specified in the basic setup mode. If automatic workpiece detection is specified, the number of scanning times for detection must be specified from among 1 and 16. Select 16 times if detecting precision workpieces. If automatic workpiece detection is not specified, no further setting is necessary.

• Automatic workpiece detection setup includes the number of measurement times, invalidation period, upper and lower detection limits. Both the upper and lower detection limits may not always need to be specified, however, they should be set for safety.

• To exclude the measured data of such as chamfered portion of the workpiece, invalidation period can be set within the range from 0.001 sec to 9.999 sec.

Start of measurement

No workpiece detected

Detection of workpiece

Invalidation elapses

Measured the specified number to times

1) OD detection method

• This is used to automatically detect a workpiece that enters the laser scanning plane perpendicularly.

• For actual detection of a workpiece the displayed measurement (after calibration and offset) is used.

• One session of automatic detection consists of no workpiece being detected, detection of a workpiece with a dimension that is within the detection range (between the upper and lower detection limits), an invalidation period required to exclude invalid dimensions (of chamfered portions, etc.) from the measurement, and effective measurement for the specified number of times. The final measurement result will be latched (held) on the display. Once entering the effective measurement the upper and lower detection limits will no longer be checked.

• The speed of workpiece detection (i.e. the number of scans) can be specified as either 1 or 16 in the basic setup.

• Use 16 times in the following cases: * If connecting bars are used between workpieces for feeding convenience and for

setting appropriate intervals between workpieces, and, if the difference in the outside diameter between the workpiece and the bar is insufficient.

* If the feed rate is low.

• The following diagram is an example where a workpiece with a chamfered outside diameter of D mm and a length of L mm moves at a velocity of V mm/s.

No. 99MBC032A

Workpiece flow V mm/s

Scanning beam

3 - 19

Setting example:

• Lower detection limit: L < (a +D) / 2

• Upper detection limit: H > Upper limit of the measuring range or 1.1 D (This setting may be omitted.)

• Invalidation period : T > (c / V) ms

• Number of measurements: N < (L - 2c) x 0.8 (safety factor) / measurement interval

2) Position detection method

• This is used to automatically detect a workpiece that enters the measuring region in the laser scanning plane in the same direction of the scan.

• Workpiece detection is performed with one scan, and 16 scans can not be specified (If specified in the basic setup, the specification will be ignored).

• One session of automatic detection consists of the detection of no workpiece, detection of a workpiece edge with a dimension that falls within the detection range (between the upper and lower detection limits), an invalidation period required to exclude invalid dimensions from the measurement, and effective measurement for the specified number of times. Once the effective measurement has been entered, the upper and lower detection limits will no longer be checked.

• In the following diagram, workpiece positions (a) and (b) result in no workpiece being present, and in (c) it is judged that a workpiece is present.

Detected edge

(a)

(b)

L : Lower detection limit H : Upper detection limit C : Detection range

Laser scanning range

V mm/S

(c)

Measuring region

Laser scanning direction

Setting example:

Assuming the workpiece diameter as D (mm) and the moving speed as V (mm/s):

• Lower detection limit: L > (Laser scanning range - measuring region) / 2

• Upper detection limit: H < (Laser scanning range + measuring region ) / 2 - D (This setting may be omitted.)

• Invalidation period : Generally set to 0 ms.

• Number of measurements: N = 1

NOTE • Allow a sufficient margin for the lower detection limit, upper detection limit, invali-

dation period, and number of measuring times when setting them. If this surplus is not sufficient, the measurement may not be achieved.

• If using the sample measurement, specify the number of measuring times to 1.

• The automatic workpiece detection functions in the continuous-run measurement.

3 - 20

No. 99MBC032A

3.2.14 Group judgment

• While the tolerance judgment is applied to each measurement from a workpiece, this group judgment is applied to a group of the specified number of workpieces.

Judgment to Group 1 Judgment to Group 2 Judgment to Group 3

3. DISPLAYS AND KEY OPERATIONS

Individual judgment

Individual

judgment

Individual judgment

Individual

judgment

Individual

judgment

Individual judgment

Individual

judgment

Individual judgment

• In the basic setup select whether group judgment is to be performed. If it is, then set the group size (the number of workpieces included in a group), calculation items (mean, maximum value, minimum value, and range), and group lower limit and upper limit. If “Not performing group judgment” is selected, the setup guidance for it will not be displayed.

• The group judgment will be in effect in a single-run measurement or continuous-run measurement. a) For the result display and GO/NG judgment indication each individual measurement

and judgment result will be used.

b) RS-232C output

In the basic setup it is possible to set whether the group judgment result data is outputted for the RS-232C interface. If it is, the output contents from the group judgment will be as follows:

P0, ( GO) 12.34567 ... Individual data P0, ( GO) 12.34560 ... Individual data P0, (+NG) 12.34600 ... Individual data GP0, ( GO) 12.34575 ... Group judgment result data

• Each individual piece of measurement data can be the objective of statistical processing,

however, group measurement data will be excluded from statistical processing.

• Even if “Err-0” (specified workpiece not present) occurs, the obtained data will not be

cleared. To abort the measurement, press the

key (or input the “CL” command

via the RS-232C interface).

No. 99MBC032A

3 - 21

3.2.15 Recording the amount of light

• The gap measurement may be unstable if not enough laser beam passes through the gaps. In the case shown in diagram (a) below, an adequate amount of light can be obtained as the laser passes through gap (g) above the workpiece, even if the gap (t) is small. However, in diagram (b) where gap (t) is small, measurement will be affected. In this case, therefore, it is necessary to have the system record the full amount of light when there is no obstruction (workpiece or fixture) in the optical path.

Laser beam passes through this gap.

Photo-electric signal

Light amount can be detected

Peak of the photo-electric signal

Light amount cannot be detected (insufficient duration)

Workpiece

g: Gap for the reference beam

Gap

(a) Light amount can be detected normally = Auto-detecting

Gap

(b) Recording the amount of light is required

• Normally the amount of incident light is continuously checked so that the counting operation can follow the change in the amount of incident light. The minimum size of gap “g” or “t” is 2 mm. Have the system record the light amount following 4.4, “How to readin the amount of light”. It is also necessary to carry out this operation twice or three times each year since the light amount of the system may vary.

3 - 22

No. 99MBC032A

3. DISPLAYS AND KEY OPERATIONS

3.3 Outline of the Display Contents

Displays of this system are effected by the display unit and guidance LEDs.

3.3.1 Display unit

The name of each part of the display unit and the LEDs are given below:

Data display unit (fluorescent display tube)

PROG

LOCK DUALOFFSETCAL S.E

Upper display section Lower display section

Measurement state guidance

3.3.2 Data display unit

1) Numeric and character display

LASER EMISSION

-NG

RUN

+NG

BUSY

BUSY LED RUN LED GO/NG judgment LEDs LD oscillation LED W.P. (Work Position) LED

• Single measurement: Turns off.

• Simultaneous measurement: Displays a background program number.

• Displays a settting item in the single measurement.

• Single measurement: Displays a setup value.

• Simultaneous measurement: Displays the measured data of a background program.

• Displays the unit of measurement.

• Displays the measured data of a foreground program.

• Displays a foreground program number.

No. 99MBC032A

2) Operation state guidance

• LOCK: Turns on in the key lock state, which is initiated by pressing both the and

LOCK/UNIT

keys. If these keys are input the key lock state will be

canceled.

• CAL: Turns on if the calibration (HI CAL) is specified.

• OFFSET: Turns on if the offset function is active.

• S.E: Turns on if statistical processing is activated.

• DUAL: Turns on if simultaneous measurement is specified.

SHIFT

3 - 23

3) Display LED

• W.P. (Work Position) LED LED segments corresponding to a region shaded by the workpiece, which blocks the laser beam, will turn off. This is used to check if the workpiece is located in the center of the measuring region.

• LD oscillation LED LASER EMISSION : Indicates that the laser in the Measuring Unit is oscillating.

• GO/NG judgment LED

1. -NG : Turns on if the measured data is -NG.

2. GO : Turns on if the measured data is GO.

3. +NG : Turns on if the measured data is +NG.

• RUN LED Turns on if a single-run measurement or continuous-run measurement is performed.

• BUSY LED Turns on each time the measured data is updated.

IMPORTANT Laser safety

For safety, the laser will not turn on until 5 seconds after the power is turned on. If the power is unintentionally turned on, turn off the power within 5 seconds to secure the laser.

3 - 24

No. 99MBC032A

3.4 Outline of Key Operations

On this system operate the keys as follows.

3. DISPLAYS AND KEY OPERATIONS

• The

STAT/S.E

key, for example, has two functions as

PROG

indicated on the upper and lower portions of the key top. The function on the upper portion can be activated by simply pressing the key, and the one on the lower portion can be activated by pressing the key while holding down the

SHIFT

key. If the

SHIFT

key is pressed, the currently displayed program number flashes for about 10 seconds until another key is pressed. During this period one of the functions in the upper portions of the keys can be selected. Press the

key while the program number is flashing.

S.E

STAT

• To enter the reference gage values, such as HIGH CAL, LOW CAL and offset, or other setup values such as reference values and GO/NG judgment criteria, etc., the numeric keys (

) and arrow keys ( , , and ) can be

used.

a) If a setup value entry is started with a numeric key and an arrow key is pressed halfway,

an operation error will result. The following example shows a case of an offset value.

1. Enter the setup mode of the offset function.

PROG

The least significant digit of the existing offset value is flashing.

2. Change the value to 12.00 mm.

Press the

key.

PROG

3. If an arrow key is pressed at this point, an operation

error occurs, however the display does not change.

4. To enable the entry of an arrow key, press the

key to cancel the setup value. Now the arrow keys are operable.

PROG

No. 99MBC032A

3 - 25

b) If a measurement is read as the setup data by pressing the

key or if the entry of a

READ

setup value is started with an arrow key and a numeric key is pressed halfway an operation error will result. See the example above.

1. Enter the setup mode of the offset function.

PROG

The least significant digit of the existing offset value flashes.

2. Enter the key.

PROG

3. If a numeric key is pressed at this point, an operation error occurs, however the display does not change.

4. To enable the entry of a numeric key, press the

key to cancel the setup value.

Now the numeric keys are operable.

PROG

3 - 26

No. 99MBC032A

3.4.1 Description of key functions

3. DISPLAYS AND KEY OPERATIONS

Key name • In the ready state

• In the display-latched state

• Changes the program number

•

+/-

• Operation error

• Cancels the error that occurred when the power was turned on.

• Cancels the latched state and

• returns to the ready state.

• Shift key

• To enter the function indicated in

• the upper portion of a double-

• function key, such as the

SHIFT

STAT

key, hold down the

S.E

• before pressing the key.

• A foreground program number will

• flash for about 10 seconds.

• Performs single-run measurement

RUN

• (even in the display-latched state).

• Starts continuous-run measurement

C.RUN

• (even in the display-latched state).

SHIFT

• At single-run measurement

• At continuous-run measurement

• Operation error

• Aborts the measurement and

• returns to the ready state.

• Operation error

• Results in a single-run

• measurement error.

• Quits the measuring operation for

• continuous-run measurement.

• Quits the measuring operation for

• continuous-run measurement

•

(same as ).

RUN

• At setup

• Combined use with power-on

• operation

• Enters the setup data.

• Enters a decimal point.

• Inverts the sign of the setup value.

• Cancels the setup value or resets

• it to initial value.

• Cancels the error state.

• + power-on will enter the

• initialization mode of the Display

• Unit.

READ

• Entry of +

SHIFT

• (to set the light amount detecting

• function) is valid when the function

• setup item number flashes in the

• function setup mode.

• Operation error

S.PR

SHIFT

S.PR

• Prints out the previous

• measurement data.

• Prints out the data currently

• displayed in the display-latched

• state.

• If the printer is active, prints out all

• the statistical processing data and

• clears the statistical memory.

• If the printer is not active, results in

• an operation error.

• Results in a single-run

• Operation error

measurement error.

• Prints out the previous

• measurement data in

• continuous-run measurement.

• Operation error • Operation error

No. 99MBC032A

3 - 27

Key name • In the ready state

• In the display-latched state

• Enters the function setup mode.

SET

• Directly enters the setup mode for

• GO/NG judgment.

LIMIT

• Performs zero-setting (in the

• positive direction) if an offset value

• is not set.

MASTER OFFSET

• If an offset value is set, executes

• the offset function with the offset

• value being set.

• Update of the setup data for the

• offset function must be performed

• in the function setup mode.

• Directly enters the setup for

• mastering.

• If no offset value is set, an error

SHIFT

MASTER OFFSET

• results.

• Directly enters the setup operation

• for the reference value.

• If "Copying the target value to the

REF

• reference value" is specified in the

• basic setup, the setup guidance will

• not be displayed.

• Operation error • Operation error • Accepts the setup data that is

ENT

• At single-run measurement

• At continuous-run measurement

• Operation error

• At setup

• Combined use with power-on

• operation

• Exits from the function setup mode

• and returns to the ready state.

• Enters the state that is entered just

• after the power is turned on, if in

• the basic setup mode.

• + power-on is used to enter

SET

• the basic setup mode.

ENT

• Press to complete the setup

• operation and return to the ready

• state.

LIMIT

• Press or to abort the

SET

• setup operation and return to the

• ready state.

• Operation error

ENT

• Press to complete the setup

• operation and return to the ready

• state.

MASTER

• Press or

OFFSET

SET

• to abort the setup operation and

• return to the ready state.

• Press to complete the setup

ENT

• operation and return to the ready

• state.

REF

SET

• Press or to abort the

• setup operation and return to the

• ready state.

• pressed.

3 - 28

No. 99MBC032A

3. DISPLAYS AND KEY OPERATIONS

Key name • In the ready state

• In the display-latched state

• Enables/disables statistical

STAT

S.E

• processing.

• If statistical processing is active,

• measurement state guidance ( )

• for statistical processing turns on.

• Enters the statistic display mode

• and displays N in the statistical

• memory.

• Each time the key is

STAT

SHIFT

S.E

• pressed S.D, MAX, MIN, AVG,

• R, and N are sequentially displayed.

• Press or to

• restore the ready state.

• Enters the clear mode of the

• statistical memory for the specified

• program number.

A.CL

M.CL

• Press to execute clear, and

•

pressing or to abort the

• clearing operation and return to the

ready state.

• Enters the clear mode of the

• statistical memory for all program

• numbers.

SHIFT

A.CL

M.CL

• Press to execute clear, and

•

press or to abort the

• clearing operation and return to the

• ready state.

• Enters the unit change mode.

• Press to execute a change of

LOCK

UNIT

•

units, and press or

• to abort the unit change operation

• and returns to the ready state.

• Enters the key lock mode, turns on

• the measurement state guidance

SHIFT

LOCK

UNIT

• ( ) for the key lock function, then

• prohibits subsequent key inputs.

• If these keys are pressed again in the key lock state, it will be canceled.

STAT

S.E

ENT

A.CL

M.CL

ENT

A.CL M.CL

ENT

SET

LOCK

UNIT

SET

• At single-run measurement

• At continuous-run measurement

• At setup

• Combined use with power-on

• operation

• Operation error

• Operation error • Operation error

No. 99MBC032A

3 - 29

Key name • In the ready state

• In the display-latched state

• Enters the HIGH CAL setup mode.

H.CAL

• Enters the LOW CAL setup mode.

L.CAL

• Operation error

READ

• At single-run measurement

• At continuous-run measurement

• Operation error

• At setup

• Combined use with power-on

• operation

• (Input of gage diameter) +

ENT

• executes HI CAL and illuminates

• the measurement state guidance ( )

• for CAL.

H.CAL

• Press or in the HI CAL

SET

• setup mode to abort the setup

• operation and return to the ready

• state.

• (Input of gage diameter) +

ENT

• executes LOW CAL.

L.CAL

• Press or in the

SET

• LOW CAL setup mode to abort the

• setup operation and return to the

• ready state.

• Reads the measurement of the

• reference gage as the setup value.

• The read value can be modified with

•

the , , ,

•

and keys.

SHIFT

READ

• Enters the detection mode of the

• measurement position

• (focal position).

READ

• Press or to restore the

SET

• ready state.

• Operation error

• If this entry is made when the

• function setup item number is

• flashing in the function setup mode,

• which was accessed by the

SET

key, the setup operation for

• the light amount detection is entered.

• This is used to enter the setup mode

• Operation error • Move left key

• for the setup item that is being

• displayed in the upper section of the

• display unit.

• Operation error • Operation error • Move right key

• Operation error • Operation error • Up key to increment the setup value.

• Operation error • Operation error • Down key to decrement the setup

• value.

3 - 30

No. 99MBC032A

3.4.2 Example key operations

As an example operation this section uses an update of the tolerance limits which are displayed in the upper display section while in the ready state. Suppose that the new lower tolerance limit is “12.34500” and the upper tolerance limit is “12.34600” and that the current values are “12.00000” and “12.00100”.

In the example below, we start with canceling existing upper and lower tolerance limits since the lower tolerance limit to be set is smaller than the existing upper tolerance limit. If this is the case, setting the lower tolerance limit first causes an error (ERR-5).

3. DISPLAYS AND KEY OPERATIONS

Step 1: In the ready state press the key to make

the setup item being displayed flash in the upper display section.

Each time the key is pressed, while the setup item is flashing, the setup item will change sequentially: Segment → Measurement interval → Offset

→ Lower limit value → Upper limit value → Reference value → Offset → Mastering →

If the key is pressed, the setup item will change in the reverse order. As the displayed setup items vary with the results of the basic setup, refer to Section

5.1.1, “Setup in the measurement mode”

Step 2: If the upper limit value is going to be canceled,

make the guidance flash.

Step 3: Press either the

or key to make the

ENT

least significant digit of the setup data flash.

Step 4: To cancel the upper limit value press the

key to set the setup data to “0”.

Step 5: If the

key is pressed, the upper limit value

ENT

is canceled and system operation returns to the ready state.

Step 6: After making the guidance flash by pressing

the key, press the and

ENT

keys to

enter the setup mode for the lower limit value.

PROG

No. 99MBC032A

Step 7: Press the

limit value to “0” (can be omitted), then enter a new lower limit value of “12.34500”.

key to set the display of the lower

PROG

3 - 31

1) Each time the numeric key is pressed the corresponding digit will be placed in the position of the least significant digit, as shown in the figure on the right. In this example insignificant zeros (

0 0

) are not entered, they will be automatically added to fill the remaining digit places when the

ENT

key is

pressed.

PROG

↓

PROG

2) Press the data of the lower limit value, and

key to save the setup

ENT

return to the ready state. If “Inserting a comma (,) after the thousandth digit” is specified in the basic setup, it will be automatically inserted when the

ENT

key is

pressed.

Step 8: As in steps 6 and 7, enter a new upper limit value.

Step 9: If the

key is pressed, the setup data of the

ENT

upper limit value is saved in memory, then operation returns to the ready state.

Step 10:Here, for practice, intentionally enter the incorrect

upper limit value of “12.34800” then correct it.

Step 11:Enter the setup mode for the upper limit value

again.

PROG

3 - 32

1) Press the key twice to make the third digit flash.

2) Press the key twice to change the third digit to “6”.

3) Press the

key to save the setup data. The

ENT

operation will be automatically return to the ready state.

PROG

No. 99MBC032A

3. DISPLAYS AND KEY OPERATIONS

The following describes how to use the arrow keys using step 7 as an example.

1) Now, the setup data of “0” is displayed as a result of having pressed the

key.

PROG

2) If the key is pressed, the digit places are automatically filled with zeros to reflect the set resolution, with the appropriate number of commas inserted after the thousandth digit, then the highlighted digit moves one position to the left.

If the key is pressed, the digit places are automatically filled with zeros to reflect the set resolution, with the appropriate number of commas inserted after the thousandth digit, then the least significant digit increases by one.

PROG

No. 99MBC032A

Here, for practice, press the key.

3) Press the key twice to move the digit to be set to the third digit place, then press the

key five times.

4) Press the key to move the digit to be set to the forth digit place, then press the key four times.

5) Press the key to move the target digit to be set to the fifth digit, then press the key three times.

6) Press the key to move the digit to be set to the sixth digit place, then press the key twice.

7) Press the key to move the target digit to be set to the seventh digit place, then press the

key.

PROG

3 - 33

8) Press the

(

ENT

memory.

IMPORTANT Rounding setup value

Setup value will be rounded off automatically if its least significant digit does not agree with the resolution of the display. Example: In case the resolution is 0.05 μm 345,64 > 12.345,60 (least significant digit 4 is rounded off to 0) 345,67 > 12.345,65 (least significant digit 7 is rounded off to 5)

TIP About the input of setup data

1. How to enter a sign If “Perform GO/NG judgment by (target value + tolerance)” has been specified in the basic setup and the lower tolerance limit is “-0.015”, input as follows. In this case a “0” does not need to be placed in the integer section.

key to save the setup value in

)

00 1 5

PROG

key: About the read operation

READ

Generally, in the calibration or offset value setup operation a reference gage is used, resulting in a measured data that is very close to the setup value. If this is the case, first read a measurement as the setup data, then correct the minor difference.

3. To enter a numeric value such as a gage diameter, it is more convenient to use the numeric keys. To correct a specific digit, it is more convenient to use the arrow keys.

4. To select a setup item such as the resolution in the basic setup, it is better to use the or key. Use of a numeric key causes an operation error.

3 - 34

No. 99MBC032A

SETTING UP THE

4.1 Basic Setup

• In the basic setup mode select and modify the appropriate functions to meet your measuring purpose. It is not necessary to set up functions which will not be used.

• The basic setup should be performed at the beginning of operation. Modification of the basic setup after calibration or function setup has been made may result in the cancellation of the calibration or function setup values.

• Commands via the RS-232C interface can not be accepted in the basic setup mode.

MEASURING CONDITIONS

Set up the various functions as required to customize the system for the utmost measurement accuracy.

No. 99MBC032A

4- 1

4.1.1 Outline of the basic setup procedure

Basic setup mode (can be entered by pressing the key + Power ON)

B0 mode: a. Setting the resolution b. Setting the number of blanked out (display-off) digits c. Setting whether a comma (",") is inserted after the thousandth digit d. Setting the buzzer function e. Setting the period of the display latch timer B1 mode: a. Setting whether to perform GO/NG judgment result output in the ready state

Use the and keys to switch between modes.

b. Setting the display message if Err-0 occurs c. Setting the display message at the start of measurement d. Setting the averaging method e. Setting the GO/NG judgment method f. Setting whether the target value is copied to the reference value B2 mode: a. Setting the workpiece type (opaque or transparent) b. Setting the simultaneous measurement c. Setting the method of specifying segments B3 mode: a. Setting the abnormal value elimination function b. Setting the automatic workpiece detection function c. Setting the number of scans d. Setting the group judgment e. Setting the output function to the RS-232C interface

B4 mode: a. Setting the use of the RS-232C port b. Setting the RS-232C communication baud rate c. Setting the RS-232C communication data bits d. Setting the RS-232C communication parity bit e. Setting the delimiter for communication f. Setting the RS-232C line control

B5 mode: Reserved B6 mode: a. Setting the use of DCU

SET

4 - 2

Ready state

No. 99MBC032A

4.1.2 Description of each mode

1. Data display unit

If the basic setup mode is entered, the following display appears. The basic setup number “ ” will be flashing in the most significant digit of the upper display section, and the guidance for the setup item, followed by the setup value, will be shown at the right of the setup number. In the lower display section “ ” will be displayed.

PROG

2. Selecting the basic setup number

• Each time the

function setup number digit changes as follows: → → → → → →

→ . To enter the desired setup mode press the

flashing. If the key is pressed, the setup mode will change in reverse order.

• If a key other than , ,

basic setup number an operation error will result.

• When each piece of setup data is accepted with the

setup mode, the operation will automatically proceed to the next setup item.

4. SETTING UP THE MEASURING CONDITIONS

Basic setup number: 1 digit Setup item guidance: 3 to 8 digits Setup data: 1 to 7 digits Unit: 2 digits

The set display of "BASIC PROG"

key is pressed when the basic setup number is flashing the

key when its setup number is

ENT

, or

is pressed during the selection of a

SET

key in the corresponding

ENT

3. Setting each setup item

• Except for setting up the display latch timer, select the setup item using the or

key and accept the setup specification by pressing the

key. When the setup

ENT

content is accepted, the operation will automatically proceed to the next setup item. In setting the display latch timer, it is better to use the numeric keys rather than the arrow keys, which, however, are valid.

4. Confirming the setup contents of each setup item

To confirm the setup specification of each setup item use only the

key, which does

ENT

not affect the setup specifications.

5. Terminating the basic setup mode

• If the

key is pressed while the basic setup number is flashing, the setup contents

SET

modified in this session will be saved, and the system will restore the state that is entered just after the power is turned on.

• If the

to the selection of a basic setup number. If the

key is pressed in the setup mode of each setup item, the operation returns

SET

key is pressed again at this point ,

SET

the setup contents modified in this session will be saved, and the system will restore the state that is entered just after the power is turned on.

• If the power is turned off halfway the setup operation, setup specifications made will

not be saved. If this is the case, setup should be repeated from the beginning.

No. 99MBC032A

4 - 3

4.1.2.1 Selecting and setting the function in the B0 mode

a. Setting the resolution (Guidance: )

Set the resolution of the Measuring Unit. The resolutions that can be set for the Measuring Units are given in “Table 4.5.2.1A” and “Table 4.5.2.1B”.

Step 1: Each time the key is pressed the displayed

PROG

setup option (number) changes in the following order: → → ... → → → . If the desired option is flashing, press the

ENT

key. If the resolution setting has been made, the operation automatically proceeds to the setting for the number of blanked out digits. The initial setup option is set to .

1. Resolution using the metric system (Unit: µm) Table 4.5.2.1A

01234567

emanledoM

6059-MSL

50.01.02.05.012 01001

2. Resolution using the inch system (Unit: inch) Table 4.5.2.1B

01234567

emanledoM

6059-MSL

200000.500000.10000.20000.50000.1000.5000.500. .tinUgnirusaeMhcaefognittestluafedehtwohsserugifdedahsehT:1eto

fosnmulocehtnisnoituloseR:2etoN “ 0” .snacs23morfdeniatboebnachcihwesohtwohs

htiwsnmulocehtnisnoituloseR “ 1” .snac

unehtfI:3etoN

.2ro,1,0.oNottessinoitulosererehwtuodeknalbyllacitamotuaeblliw

iddeyalpsidehterehW

s61morfdeniatboebnachcihwesohtwohs

tnemerusaemafotigidtnacifingistsaeleht,8ot1neewtebteserasnacsforebm

.ycaruccagnirusaemehtecudernetfoyamnoituloseregralootagnittestahtetoN:4etoN

forebmunehttes,eesottluciffiddnatcatniylesolcerastig .0b:edomputescisabehtninoitcnuftigidhtdnasuohtehtkramrostigidtuo-knalb

IMPORTANT Changing the resolution will cancel all the clibration values (HIGH CAL and LOW

CAL), offset value, mastering, abnormal value eliminating limits, GO/NG judgment criteria, reference value, and setup values for the automatic workpiece detection. Therefore, changing of the resolution should be carried out first.

b. Setting the number of blank-out digits (Guidance: )

Here, set the number of blank-out digits for measurements to be displayed in the display unit. This blank out does not apply to the output to RS-232C interface, printer, Digimatic output unit, and the display of setup value.

: No blank out (all digits are displayed) → : The least significant digit is blanked out. → : The least significant two digits are blanked out. →

(Default setting is .)

Step 1: Each time the key is pressed the displayed

figure changes in ascending order: → → → . While the figure to be set is flashing, press the

key.

ENT

After accepting the specified value, the display proceeds to the setup stage of the next item.

PROG

4 - 4

No. 99MBC032A

4. SETTING UP THE MEASURING CONDITIONS

c. Putting a comma after the thousandths digit (Guidance: )

Set whether a comma ( ,) is inserted after the thousandths digit.

: Not displayed → : Displayed →

(Default setting is .)

Step 1: Each time the key is pressed the displayed

string toggles between Select the setting and press the

and .

key.

ENT

PROG

After accepting the specified digit position, the display proceeds to the setting the buzzer function.

d. Setting the buzzer function (Guidance: )

Set whether or not to enable (key input sensing sound and key entry error sound) and (±NG judgment sound). Note that the system error sounds (indicating that the printer or Digimatic Output Unit is not connected, or other system failures) are not disabled with this setting. The types of buzzer sound are as follows:

1. Key input sensing sound: very short beep (0.05 sec)

2. Key entry error sound: short beep (0.2 sec)

3. ±NG judgment sound: long beep (1 sec)

4. System error sound: repeated short beeps at intervals of 0.2 seconds : Sounds a buzzer in all cases. : Enables the key input sensing sound + key entry error sound : Sounds a buzzer when the judgment result is ±NG : Sounds a buzzer only if a system error occurs

(Default setting: )

Step 1: Each time the key is pressed the displayed

PROG

setup option changes in the following order:

→ → → . If the

desired option is flashing, press the

ENT

key. When the setup for the buzzer function is completed, operation automatically proceeds to the setting of the display latch timer.

No. 99MBC032A

4 - 5

e. Setting the display latch timer (Guidance: )

Set the period the measurement result display is to be latched (held) on the display if a single-run measurement or continuous-run measurement is performed. Specify a value between 0 and 99 seconds. “0” seconds specifies an infinite (latch state not canceled). (Default setting: 10 seconds)

Step 1: This is an example of the display latch timer being

set to 15 seconds. Enter

Step 2: Press the

memory.

and

key to save the setup data in

ENT

in this order.

ENT

The operation automatically proceeds to B1: Setting the output function in the ready state.

PROG

4 - 6

No. 99MBC032A

4. SETTING UP THE MEASURING CONDITIONS

4.1.2.2 Selecting and setting the function in the B1 mode

a. Setting the output function in the ready state (Guidance: )

Set whether to perform GO/NG judgment result output in the ready state.

: Neither kind of output is performed in the ready state. : Both kinds of output are performed, even in the ready state.

(Default setting: )

Step 1: Each time the key is pressed the displayed

setup option toggles between

and .

PROG

While the desired setup option is flashing, press the

key. When the setup for this function

ENT

has been completed, the operation automatically proceeds to the display setting in the event of Err-0.

b. Selecting the display message if Err-0 occurs (Guidance:

)

: Displays “ ”. : Displays “ ” as the least significant digit.

(Default setting: )

Step 1: Each time the key is pressed the displayed

PROG

setup option toggles between and . While the desired setup option is flashing, press the

key. The operation automatically

ENT

proceeds to the selection of the display message at the start of measurement.

c. Selecting the display message at the start of measurement (Guidance: )

Set the message to be displayed at the start of a single-run measurement or continuous-run measurement.

: Displays “ ”. : Continuously displays the previous data.

(Default setting: )

No. 99MBC032A

Step 1: Each time the key is pressed the displayed

setup option toggles between and

. While the desired setup option is

flashing, press the

key. The operation

ENT

automatically proceeds to the selection of the averaging method.

PROG

4 - 7

d. Selecting the averaging method (Guidance: )

Select one of the following averaging methods: arithmetical average and moving average.

: Arithmetical average : Moving average

(Default setting: )

Step 1: Each time the key is pressed the displayed

setup option toggles between

and

PROG

. While the desired setup option is

flashing, press the

key. The operation

ENT

automatically proceeds to the selection of the GO/ NG judgment method.

e. Setting the GO/NG judgment method (Guidance: )

Select one of the following GO/NG judgment methods: (lower limit value and upper limit value), (multi-stage selection: 7 stages), and (target value + tolerance).

: GO/NG judgment is performed according to the specified lower limit and

upper limit.

: GO/NG judgment is performed according to the multi-limit selection (7

stages).

: GO/NG judgment is performed according to the specified target value and

tolerance. (Default setting: )

Step 1: Each time the key is pressed the displayed

PROG

setup option changes in the following order:

→ → . While

the desired setup option is flashing, press the

key. If is selected, operation

ENT

proceeds to setting whether the target value is copied to the reference value. If is not selected, operation proceeds to B2: Setting the workpiece type.

f. Setting whether the target value is copied to the reference value (Guidance: )

Set whether the target value is automatically copied to the reference value.

: Target value is not copied to the reference value. : Target value is copied to the reference value.

(Default setting: )

Step 1: Each time key is pressed the displayed

PROG

setup option toggles between and

. While the desired setup option is

flashing press

key. The operation automati-

ENT

cally proceeds to setting B2: Setting the workpiece type.

4 - 8

No. 99MBC032A

4. SETTING UP THE MEASURING CONDITIONS

4.1.2.3 Selecting and setting the function in the B2 mode

a. Setting the workpiece type (Guidance: )

Set whether the workpiece is an opaque object or transparent object.

: Workpiece is an opaque object. : Workpiece is a transparent object.

(Default setting: )

Step 1: Each time the key is pressed the displayed

PROG

setup option toggles between and

. While the desired setup option is

flashing, press the

key. The operation

ENT

automatically proceeds to setting whether to perform simultaneous measurement.

TIP If is selected for the workpiece type, the guidance for the selection of the

segment specification method is not displayed. It is omitted (the segment specification process is entered directly).

b. Setting the simultaneous measurement (Guidance: )

Set whether to perform simultaneous measurement.

: Does not perform simultaneous measurement. (performs single measurement) : Performs simultaneous measurement.

(Default setting: )

Step 1: Each time the key is pressed the displayed

PROG

setup option toggles between and

While the desired setup option is

flashing, press the

ENT

key.

TIP If (simultaneous measurement) is selected

If simultaneous measurement is selected, the setup guidance for the following will not be displayed: Selecting the averaging method, segment specification, and setting the group judgment.

No. 99MBC032A

c. Selecting the method of specifying segments (Guidance: )

Select the method of specifying the measurement position from segment specification and edge specification.

: Uses segment specification. : Uses edge specification.

(Default setting: )

Step 1: Each time the key is pressed the displayed

PROG

setup option toggles between and

. While the desired setup option is

flashing, press the

key. The operation

ENT

automatically enters B3: Setting the abnormal value elimination function.

NOTE If any of the following setting is performed, the system automatically proceeds to the

stage of segment setup without displaying the guidance for the method of specifying segments SEG:

• a. is selected in Setting the workpiece type.

4 - 9

4.1.2.4 Selecting and setting the function in the B3 mode

a. Setting the abnormal value elimination function (Guidance: )

Set whether to use the abnormal value elimination function.

: Does not use the abnormal value elimination function. : Uses the abnormal value elimination function.

(Default setting: )

Step 1: Each time the key is pressed the displayed

PROG

setup option toggles between and . While the desired setup option is flashing, press the

key. The operation automatically enters

ENT

the process for setting the automatic workpiece detecting function.

b. Setting the automatic workpiece detecting function (Guidance: )

Set whether to use the automatic workpiece detecting function.

: Does not use the automatic workpiece detecting function. : Performs automatic workpiece detection with the diameter detection

method.

: Performs automatic workpiece detection with the position detection

method. (Default setting: )

Step 1: Each time the key is pressed the displayed

PROG

setup option changes in the following order:

→ → . While the

desired setup option is flashing, press the

ENT

key. If (the automatic workpiece detecting function is not used) is selected, the operation proceeds to setting the group judgment, otherwise it enters the process for setting the number of scans.

4 - 10

c. Setting the number of scans (Guidance: )

Set the number of scans that are used for the automatic workpiece detecting function.

: Detection from 16 scans : Detection from a single scan

(Default setting: )

Step 1: Each time the key is pressed the displayed

PROG

setup option toggles between and . While the desired setup option is flashing, press the

key. The operation automatically enters the

ENT

process for setting the group judgment.

NOTE Even if 16 scans are specified in the position detection method, the actual detecting

operation will be performed with a single scan.

No. 99MBC032A

4. SETTING UP THE MEASURING CONDITIONS

d. Setting the group judgment (Guidance: )

Set whether to use the group judgment function.

: Does not use the group judgment function. : Uses the group judgment function.

(Default setting: )

Step 1: Each time the key is pressed the displayed

setup option toggles between

and .

PROG

While the desired setup option is flashing, press the

key. If is selected, the opera-

ENT

tion proceeds to B4: Setting the use of RS-232C baud rate, and if is selected, the operation enters the process for setting the group judgment result output function.

e. Setting the group judgement output (Guidance: )

Set whether to output the group judgment result to the RS-232C interface.

: Does not output the group judgment result to the RS-232C interface. : Outputs the group judgment result to the RS-232C interface.

(Default setting:

Step 1: Each time the key is pressed the displayed

)

PROG

setup option toggles between and . While the desired setup option is flashing, press the

key. The operation automatically

ENT

proceeds to B4: Setting the use of RS-232C port.

No. 99MBC032A

4 - 11

4.1.2.5 Selecting and setting the function in the B4 mode

a. Setting the use of RS-232C port (Guidance: )

Set if the RS-232C port is used as the communication port (COM) for a personal computer, etc., or as the printer port, or is not used for either.

: Used as the communication port (COM) for a personal computer, etc. : Used as the printer port : Is not used for either purpose

(Default setting: )

Step 1: Each time the key is pressed the displayed

PROG

setup option changes in the following order:

→ → . While the desired

setup option is flashing, press the

ENT

key. If

is selected, the operation proceeds to B5: Reserved, otherwise it enters the process for setting the RS-232C communication speed.

b. Setting the RS-232C communication baud rate (Guidance: )

Set the RS-232C communication speed (baud rate).

: Uses 9600 bps. : Uses 19200 bps. : Uses 1200 bps. : Uses 2400 bps. : Uses 4800 bps.

(Default setting: )

Step 1: Each time the key is pressed the displayed

PROG

setup option changes in the following order:

→ → →

→ . While the desired setup option is

flashing, press the

key. The operation

ENT

automatically enters the process for setting the RS-232C data bits.

4 - 12

c. Setting the RS-232C communication data bits (Guidance: )

Set the data bits for RS-232C communication.

: Uses 8 bits. : Uses 7 bits.

(Default setting: )

Step 1: Each time the key is pressed the displayed

PROG

setup option toggles between and . While the desired setup option is flashing, press the

key. The operation automatically enters

ENT

the process for setting the parity check method for RS-232C communication.

No. 99MBC032A

4. SETTING UP THE MEASURING CONDITIONS

d. Setting the RS-232C communication parity bit (Guidance: )

Set the parity check method for RS-232C communication.

: Does not use parity check. : Uses odd parity. : Uses even parity.

(Default setting: )

Step 1: Each time the key is pressed the displayed

PROG

setup option changes in the following order:

→ → . While the

desired setup option is flashing, press the

ENT

key. The operation automatically enters the process for setting the delimiter for RS-232C communication .

e. Setting the delimiter for communication (Guidance: )

Set the delimiter (termination code of one sentence) for RS-232C communication.

: Uses CR+LF as the delimiter. : Uses CR code as the delimiter. : Uses LF code as the delimiter.

(Default setting: )

Step 1: Each time the key is pressed the displayed

PROG

setup option changes in the following order:

→ → . While the desired

setup option is flashing, press the

ENT

key. The operation automatically enters the process for setting the control method of the RS-232C communication flow.

f. Setting the RS-232C line control (Guidance: )

Set the method of controlling the RS-232C communication flow.

: Does not use a particular control signal (using 3-wire teletype control). : Uses a control signal.

(Default setting: )

Note: If the RS-232C interface is set as the printer port, line control will be

achieved by BUSY signals even if this option was set to .

No. 99MBC032A

Step 1: Each time the key is pressed the displayed

setup option toggles between and . While the desired setup option is flashing, press the

key. The operation automatically

ENT

proceeds to B5: Reserved.

PROG

4 - 13

4.1.2.6 B5: Reserved

B5 is not neccessarily to be set, press the

ENT

B6: The operation automatically proceeds B6: Setting the use of DCU.

4.1.2.7 Selecting and setting the function in the B6 mode

a. Setting the use of DCU (Guidance: )

Set whether to use the Mitutoyo Data Processing Unit interface called DCU (Digimatic Output Unit).

: Does not use DCU. : Uses DCU.

(Default setting:

Step 1: Each time the key is pressed the displayed

setup option changes in the following order:

→ . While the desired setup option is flashing, press the operation automatically returns to B0: Setting the resolution.

)

ENT

key. The

key.

PROG

4 - 14

No. 99MBC032A

4.2 Calibration

The LSM system can be calibrated quite easily and with high accuracy.

4.2.1 Calibration gages and gage stand

Supported calibration gages and gage stand have the following shapes.

Thin wire type Straight type Stepped type

4. SETTING UP THE MEASURING CONDITIONS

Calibration gages and stand

4.2.2 Entering the calibration mode

Enter the calibration mode with the following procedure. < Preparation >

(1) Turn on the power and wait at least one hour for the system to thermally stabilize. (2) Prior to use, wipe dust and oil from the gage and gage stand with a cloth soaked in

alcohol or thinner. If calibration has been completed, carefully store them in a dedicated case after applying a rust preventive oil to their surfaces.

(3) Specify SEG 2.

For information about the method of segment specification, refer to Section 4.5, “Setting Up the Functions”.

On edge specification, select either manual measurement or automatic measurement with respect to diameter.

PROG PROG

Gage stand

PROG

No. 99MBC032A

a) Manual measurement b) Automatic measurement

Set the start edge to 2 and the end edge to 3.

PROG PROG

a) Start edge b) End edge

4 - 15

(4) Setting the HIGH CAL gauge.

HIGH CAL gages vary in shape depending on the LSM model to be calibrated. Set the calibration gage so that the calibration guide line ( | ) on the side face of the calibration gage comes vertical, and so that the center of the calibrated section is measured. In diagram (a), the calibrated position is at the center of the ( | | ) mark, and the center of the width (indicated by the arrow mark) in diagram (b).

(a) (b)

Step 1: Cancel the previously set calibration values.

It is not necessary if this setup operation is made with the previously used calibration gage. However, if the new gage diameter is much different from that of the previous one, an error (Err-2) may result. If this is the case, cancel the LOW CAL calibration value, then begin with the setting of HIGH CAL value (it does not matter if both the LOW CAL and HIGH CAL values are canceled).

1) Cancel the previous LOW CAL data. Press the

key in the ready state to initiate the

L.CAL

LOW CAL setup mode.

2) Press the

and

ENT

keys to cancel the LOW CAL data. This automatically restores the ready state.

ENT

Step 2: Mount the HIGH CAL gage on the stand.

Press the

key in the ready state. The

H.CAL

previously set HIGH CAL value is displayed, and the HIGH CAL setup mode is entered.

Step 3: Enter the approved dimension of the HIGH CAL

gage. Example.)

PROG

4 - 16

No. 99MBC032A

4. SETTING UP THE MEASURING CONDITIONS

Step 4: If the

key is pressed to save the HIGH CAL

ENT

setup value in memory, the operation automatically returns to the ready state.

Step 5: Set the LOW CAL gage.

As with the HIGH CAL gage, the LOW CAL gages vary in shape depending on the LSM model to be calibrated. Set the LOW CAL gage so that the center of the calibration range is properly measured. A LOW CAL gage for calibrating dimensions less than 2 mm should be set so that it fits with the mounting hole of the gage stand.

Step 6: Set up the LOW CAL gage.

In the ready state press the

L.CAL

key. The previously set LOW CAL value is displayed, and the LOW CAL setup mode is entered.

Step 7: Enter the verified dimension of the LOW CAL

gage.

PROG

Step 8: If the

setup value in memory, the operation automatically returns to the ready state.

key is pressed to save the LOW CAL

ENT

PROG

No. 99MBC032A

4 - 17

IMPORTANT Calibration

1. Before performing a calibration, always perform the necessary setup for the resolution, etc. If this order is reversed, the set calibration value may be canceled and the measurement accuracy is not guaranteed.

2. Canceling the HIGH CAL value will also cancel the LOW CAL, offset, and mastering values.

3. With only a LOW CAL setup value the compensation calculation does not take place. This calculation will start when a HIGH CAL (or HIGH CAL and LOW CAL) value is set. If a HIGH CAL value is set, the CAL guidance ( ) will turn on in the display unit.

4. A calibration gage is important in that it is critical to the accuracy of the Measuring Unit. Wipe dust and oil from the gage with a cloth soaked in alcohol or thinner before using it. After use, apply a rust preventive oil to its surfaces and store it carefully in a dedicated case.

5. To confirm the HIGH CAL or LOW CAL setup value, press either the

key to enter each setup mode, and press the

L.CAL

(and

SET

perform the setup operation in the confirmation process of the setup data.

6. On the user-supplied calibration gages, the dimensional ratio of a High CAL gage to a Low CAL gage should be greater than 1.2. Calibration performed with the calibration gages with diameters that are too close each other may reduce the measuring accuracy. The calibration gage should be the one which is made of the same or similar material as that of the workpiece. If a calibration gage of different material is used, error may be involved in measurement due to the difference in surface textures or properties.

7. For calibration measurement, no restriction exist for segment specification. If a gap or displacement needs to be precisely measured, a thickness gage can be used for calibration. (There will be a slight difference in measured data between those from OD and gap depending on the segment specified for calibration.)

H.CAL

(and

SET

) or

L.CAL

) key to exit to the ready state after the confirmation is over. Do not

4 - 18

No. 99MBC032A

4. SETTING UP THE MEASURING CONDITIONS

4.3 Positioning a Gage or a Workpiece

1. Position the calibration gage or workpiece so that it is located at the middle of the measurement position. The shaded section in the following diagram is the measuring region where the rated measuring accuracy of this system is obtained.

2. It is also possible to measure a workpiece or gage located outside the measuring region, as long as it is within the laser beam scanning range, however, the measurement accuracy will be reduced.

(3.27)

(.39)

Measuring region

(2.36)

(3.86)

4.4 How to read-in the amount of light

For measurement of the fine gap where the light passing through it can not be sufficiently secured it is necessary for the system to read-in the amount of light. For more information refer to Section 3.2.15, “Recording the amount of light”.

Step 1: Removal of obstructions

Remove any objects (workpiece and fixture) that obstruct the laser path before reading in the amount of light.

Step 2: Enter the function setup mode from the ready

PROG

state.

Step 3: Press the

SHIFT

and

keys while the function

READ

PROG

setup number is flashing to enter the light amount check mode. Each time the key is pressed the setup option toggles between (automatic detection) and (reading in the amount of light).

Step 4: Press the

key while is flashing.

ENT

PROG

If a sufficient amount of light is detected as a result of this positive check, the operation automatically returns to the ready state. If is

PROG

displayed, it indicates that the amount of light is insufficient. If this is the case, remove any obstruction and cancel the error with the

key, then perform step 4 again.

No. 99MBC032A

4 - 19

4.5 Setting Up the Functions

Make measurement-related setups based on the conditions set in Section 4.1, “Basic Setup”.

4.5.1 Outline of the function setup mode

SET

Ready state

SET SETSET

( )

Function No.

F1 Setting the measurement interval (measurement time)

F2 Setting the GO/NG judgment criteria

Note2

F3 Setting the reference value

F4 Setting the offset and mastering

F5 Setting the data output condition

F6 Sample measurement

Setting the segment In the basic setup mode, first set whether the workpiece is an opaque or transparent object. If it is an opaque object, then it is possible to specify the number of segments and edges to be measured. With the edge specification a multiple-pin workpiece can be measured automatically.

• Segment specification: (Opaque object: 1 to 7, Transparent object: 1 to 3)

• Edge specification: (Manual: / Automatic: / Automatic: / Automatic: )

• Start edge : (Between edge number 1 and 254 )

• Finish edge : (Between edge number 2 and 255)

In the basic setup mode either of the two setting methods can be selected.

• Arithmetical average: (1 to 2048)

• Moving average: (32 to 2048)

In the basic setup mode either of the three setting methods can be selected. In addition, if the abnormal value elimination function will be specified, the limits (Lower abnormal limit: → Upper abnormal limit: ) for this abnormal value elimination should be set prior to other setup items.

• Lower limit : → Upper limit:

• Multi-limit selection 1: → Multi-limit selection 2: → Multi-limit selection 3: ••••→ Multi-limit selection 6: Target value : → Lower tolerance limit: → Upper tolerance limit:

In the basic setup mode it is possible to copy the setup data of a target value to the reference value. If this is done the setup guidance for the reference value is not displayed.

• Reference value:

Both the offset and mastering can be set.

• Offset: → Direction: (0 , 1) → Mastering:

Data output condition: (0 to 9) : If 1, 3 or 5 is selected → Periodic data output: (0 to 999)

Note1

Number of samples: (0 ~ 999) → Calculation item: (Mean: / Maximum value: / Minimum value: / Range: )

Setup contents

Note1

4 - 20

No. 99MBC032A

4. SETTING UP THE MEASURING CONDITIONS

Function No. Setup contents

Note2

F7 Setting automatic workpiece detection

In the basic setup mode either detection by dimension or detection by position can be selected. If “Not performing the automatic workpiece detection” is selected, the setup guidance for the following option will not be displayed. Number of measurements: (0 to 999) → Invalidation period: (0 to 9999)

Note2

F8 Setting the group judgment

• Settings following the circle are factory settings.

• Settings following a dot are ones which have been selected in the basic setup.

• Settings with no marking can be made in only one way.

NOTE 1: Measurement interval and the number of samples are automatically matched in simultaneous measurement. NOTE 2: The function number may not be displayed depending on the basic setup contents.

→ Detection lower limit: → Detection upper limit:

In the basic setup mode setups for the group judgment can be made. If “Not performing the group judgment” is selected, the setup guidance for the following option will not be displayed.

• Group size : (0 ~ 99) → Statistical item:

(Average: / Maximum value: / Minimum value: / Range: )

• Group lower limit value: → Group upper limit value:

No. 99MBC032A

4 - 21

4.5.2 Outline of each function setup mode

1. Data display unit If the basic setup mode is entered, the following is displayed. The function setup number will be flashing in the most significant digit of the upper display section, and the guidance for the setup item, followed by the setup value, will be shown to the right of the setup number. In the lower display section the measurement from the foreground program number will be displayed.

PROG

2. Setting each setup item

• Use the numeric keys for setting the setup value, such as an offset value, and use the

and keys for selecting the item, such as the statistical item of the sample

measurement.

• Press the

accepted, the operation automatically proceeds to the next setup item.

key to accept and save the setup data. After the setup content has been

ENT

Function setup number: 1 digit Setup item guidance: 3 to 8 digits Setup data: Maximum 10 digits Unit: 2 digits

Measurement from the foregroundprogram number

3. Setup values that must meet the large/small relationships The setup values for GO/NG judgment should meet the following relationships: Abnormal lower limit < Abnormal upper limit, Lower tolerance limit < Upper tolerance limit, and Lower limit value < Upper limit value. If the previously specified setup value needs to be modified to a great extent, it is recommended to first enter the new setup value thats meets the existing large/small relationship or, for safety, cancel the both sides to 0 then set them again.

4. Confirming the setup contents of each setup item To confirm the setup contents of each setup item use only the

key, which does not

ENT

affect the setup contents.

5. Terminating the function setup mode

• If the

key is pressed while the function setup number is flashing, operation

SET

returns to the ready state.

• If the

the selection of a function setup number. If the

key is pressed in the setup mode of each setup item, operation returns to

SET

key is pressed again at this point,

SET

operation returns to the ready state.

• If the power is turned off halfway to the setup operation, on-going setup contents will

not be saved in memory. The contents must be set again.

4 - 22

No. 99MBC032A

4.5.3 Function setup mode

4. SETTING UP THE MEASURING CONDITIONS

• If the function setup mode is entered using the key in the ready state, the function setup number will be flashing as shown in the figure at the right.

• Each time the key is pressed when the function setup number is flashing, it will change as follows:

→ → → → → → → → →

. Press the function setup number is flashing to enter the setup mode. If the key is pressed, this order will be reversed.

• If a key other than the , , , selection of a function setup number, an operation error will result.

• If each piece of setup data is accepted with the mode, the operation will automatically proceed to the next setup item.

4.5.3.1 F0: Setting the segment

Use this function to set the measurement position (segment). The segment specification and edge specification methods are provided for this purpose. Both can be selected in the basic setup.

If this setup mode is entered, the previously established data will flash.

1) Segment specification Places for displaying the segment numbers are fixed as shown in the figure at the right. In this example, set to SEG2.

( ) key while the desired

ENT

SET

and

ENT

PROG

keys are pressed during the

SET

key in the corresponding setup

PROG

Segment

7654321

Step 1: If the segment setup mode is entered, the previ-

ously established data will be displayed.

Press the

Step 2: Press the

key.

key to save the setup data

ENT

in memory. Operation automatically proceeds to the measurement interval setting.

TIP Segment setup example

1. Set to segments (2 + 4).

2. Set to segments (1 + 5).

PROG

ENT

PROG

No. 99MBC032A

4 - 23

2) Edge specification Step 1: If the edge specification mode is entered, the

previously established manual measurement/ automatic measurement item will be displayed.

PROG

Each time the key is pressed the setup option changes in the following order: Manual measurement: measurement for pitch:

→ Automatic

measurement for diameter: → Automatic measurement for gap: . If the desired setup option is displayed, press the

ENT

key.

Operation automatically enters the process of setting the start edge.

Step 2: Set the start edge (between number 1 and

254) In this example, set the start edge to number 2. If the

key is pressed, the operation

ENT

automatically enters the process for setting the finish edge.

Step 3: Set the end edge (between number 2

and 255) In this example, set the end edge to number 65. If the

key is pressed, the operation auto-

ENT

matically proceeds to F1: Setting the measurement interval.

PROG

TIP 1. If a calibration is performed using the reference gage (placed in SEG2) with the

edge specification active, select Manual measurement: or Automatic measurement for diameter: , then set the start edge to 2 and end edge to 3.

2. If the checks on the start and end edges, performed at the end of the setup operation, result in start edge > end edge, exchange the start and end edge data. If the check result shows that both edge numbers are identical, an error (Err-5) results. If this occurs, cancel the setup data and begin the setting with the start edge.

4 - 24

No. 99MBC032A

4. SETTING UP THE MEASURING CONDITIONS

4.5.3.2 F1: Setting the measurement interval (measurement time)

Use this function to set the measurement interval. This measurement interval should be set according to the arithmetical average and moving average, whichever is specified in the basic setup.

1) Arithmetical average (Guidance: )

Step 1: The previously set number of scans for averaging

PROG

is displayed. Select between 1 and 2048 times . The relationship between the number of scans for averaging and measurement intervals are shown in the table below.

Relationship between the number of scans for averaging and measurement intervals (measure-

ment times)

rofsnacsforebmuN

gnigareva

1ces36000.0– 2ces3100.0– 4ces5200.0– 8ces500.0–

61ces10.0– 23ces20.0ces20.0ces10.0 46ce

821ces80.0ces80.0ces10.0 652ces61.0ces61.0ces10.0 215ces23.0ces23.0ces10.0

4201ces46.0ces46.0ces10. 8402ces82.1ces82.1ces10.0

egarevalacitemhtirAegarevagnivoM

aemts1

s40.0ces40.0ces10.0

tnemerus

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tneuqesbusdnadn2

stnemerusaem

No. 99MBC032A

Each time the key is pressed, the setup option changes in the following order:

Select 512 times.

Step 2: Press the

memory. The operation automatically proceeds to F2: Setting the GO/NG judgment criteria.

→ → → → → → → → → → → → . For this example select 512 times.

PROG

key to save the setup data in

ENT

PROG

ENT

4 - 25

2) Moving average (Guidance: )

Different in the setup guidance ( ) and the number of scans for averaging (between 32 and

2048), however, the setup method is same with the arithmetical average.

PROG

NOTE 1. A larger number of scans for averaging will improve the repeatability.

If measuring time permits, set the greatest number of scans for averaging possible.

2. If the number of scans for averaging is set to between 1 and 4, the scan signals will be thinned for the measurement. This results in a measurement interval of

0.002 to 0.003 second.

4 - 26

No. 99MBC032A

4. SETTING UP THE MEASURING CONDITIONS

4.5.3.3 F2: Setting the GO/NG judgment criteria

Set the GO/NG judgment criteria according to the tolerance judgment method: (Lower limit value + Upper limit value), (Multi-stage selection: 7 stages), and (Target value + tolerance), whichever is specified in the basic setup. If “Using the abnormal value elimination function” has been specified, the abnormal limit values should be set prior to setting the GO/NG judgment criteria.

In this example assume that the machining target value is 12.5 abnormal limits (lower and upper) and GO/NG judgment criteria are canceled (set to 0).

1) Setting the abnormal limit values

Set as follows: Lower abnormal limit = 12.48 mm, Upper abnormal limit = 12.52 mm.

+/- 0.01

mm, and that all the

Step 1: The previously set lower abnormal limit is

displayed. Enter “12.48”.

Step 2: Press the

ENT

key.

The setup data will be saved in memory and operation automatically proceeds to the setting for the upper abnormal limit.

Step 3: Enter “12.52”, which is the setup data for the

upper abnormal limit.

Step 4: Press the

key.

ENT

The setup data will be saved in memory and operation will automatically proceed to the GO/NG judgment criteria setting. The method of GO/NG judgment varies with the contents of the basic setup.

PROG

Case of

(Lower limit value and Upper limit value)

No. 99MBC032A

PROGPROG

Case of (Multi-stage selection) Case of (Target value + tolerance)

4 - 27

2) GO/NG judgment criteria setting (by “Lower limit value and upper limit value”)

In this example assume that the lower limit value is 12.49 mm and that the upper limit value is 12.51 mm.

Step 1: The previously set lower limit value is displayed.

Enter “12.49”.

Step 2: Press the

ENT

key.

The setup data will be saved in memory and the operation automatically proceeds to the upper limit value setting.

Step 3: Enter “12.51”, which is the setup data for the

upper limit value.

Step 4: Press the

ENT

key.

The setup data will be saved in memory and the operation automatically proceeds to the reference value setting.

PROG

4 - 28

No. 99MBC032A

4. SETTING UP THE MEASURING CONDITIONS

3) Setting the GO/NG judgment criteria (by multi-limit selection)

In this example assume the following: L1=12.49mm L2=12.494mm L3=12.498mm L4=12.502mm L5=12.506mm L6=12.51mm

Step 1: The previously entered setup value for L1 is

displayed. Enter “12.49”.

Step 2: Press the

ENT

key.

The setup data will be saved in memory and the operation automatically proceeds to the L2 setting.

Step 3: Enter “12.494”, which is the setup data for L2.

Step 4: Press the

key.

ENT

The setup data will be saved in memory and the operation automatically proceeds to the L3 setting.

Step 5: As with L1 and L2, set L3, L4, and L5.

Step 6: Enter “12.51”, which is the L6 setup value.

PROG

No. 99MBC032A

Step 7: Press the

The setup data will be saved in memory and the operation automatically proceeds to the reference value setting.

ENT

key.

PROG

4 - 29

4) Setting the GO/NG judgment criteria (with “Target value + tolerance”)

In this example assume that the target value is 12.5 mm, lower tolerance is -0.01 mm, and upper tolerance is 0.01 mm.

Step 1: The previously set target value is displayed.

Enter “12.5”.

Step 2: Press the

ENT

key.

The setup data will be saved in memory and the operation automatically proceeds to the lower tolerance value setting. The target value will be automatically copied on the reference value if so set in the basic setup.

Step 3: Enter “0.01”, which is the lower tolerance value,

and a negative sign.

()

PROG

Step 4: Press the

ENT

key. The setup data will be saved in memory and the operation automatically proceeds to the upper tolerance value setting.

Step 5: Enter “0.01”, which is the upper tolerance value.

Step 6: Press the

ENT

key.

()

The setup data will be saved in memory and the operation automatically proceeds to the reference value setting. The displayed guidance for the setup item will vary depending whether “Copying the target value to the reference value” has been specified in the basic setup.

PROG

When not copying the target value to the reference value.

PROG

When copying the target value to the reference value.

4 - 30

No. 99MBC032A

4.5.3.4 F3: Setting the reference value

Set the reference value here. If “Copying the target value to the reference value” has been specified in the basic setup, the setup guidance for the reference value will not be displayed.

In this example assume that the reference value is 12.5 mm.

4. SETTING UP THE MEASURING CONDITIONS

Step 1: The previously set reference value is displayed.

Enter “12.5”.

If “1” is entered the currently displayed setup value changes to “1”, however, it will not be saved in memory until the

ENT

key is pressed.

Enter “2”.

Enter a decimal point (“.”).

Enter “5”.

Step 2: Press the

ENT

key. The setup data will be saved in memory and the operation automatically proceeds to the offset value setting.

PROG

No. 99MBC032A

4 - 31

4.5.3.5 F4: Setting the offset value

Set the offset value and/or mastering value here. In this example assume that the offset value is 12.5 mm, the direction is 0 (positive), and the

mastering value is 0.0. Assume also that the current offset value is 12.345 mm. Step 1: The previously set offset value is displayed.

Enter “12.5”.

Step 2: Offset guidance ( ) turns on and the setup data

will be saved in memory and the operation automatically proceeds to the direction setting.

Step 3: Set the direction to “0”.

Since in this example the previous setting is “0”, it is not necessary to enter the same value again. However, if there is a need to change the direction to “1”, enter “1”.

Step 4: Press the

ENT

key. The setup data will be saved in memory and the operation automatically proceeds to the mastering value setting.

Step 5: Enter “0.0”, which is the mastering value.

PROG

Step 6: Press the

The setup data will be saved in memory and the operation automatically enters the data output condition setting.

ENT

key.

PROG

4 - 32

No. 99MBC032A

4. SETTING UP THE MEASURING CONDITIONS

IMPORTANT How to use the offset function

1. To obtain an offset value, it is necessary to set up the reference gage in place (the offset value is a compensation value determined from the measurement of the reference gage). This offset setup takes about 1 second.

2. If the existing setup value is applied, it is not necessary to carry out the offset. To force the offset operation using the same data, move the highlighted digit place with the makes the offset carried out, since the system judges the data is changed. For this operation press the ready state. With this single key operation offset will be carried out.

3. So that the maximum displayable range is not exceeded during measurement, the offset value must be set well within the maximum value shown in the table below. If measured data exceed the maximum value, “9999999” will be displayed.

(noituloseR μ )m)mm(eulavmumixaM)E(noituloseR)E(eulavmumixaM

50.0 ± 99999.98

.0 ± 9999.998

5.0/2.0/1 001/01/2/1 ± 999.9998

key. This

MASTER/OFFSET

key in the

/200000.

500000.

PROG

500./5000./1000.

± 999999.8

/50000./20000./10000.

± 99999.98

4. Precautions prior to modifying the unit system Note that if an offset value exceeds the above described maximum value when the unit system is changed from E to metric, the offset function will automatically be reset. (Example: If the integer part of the maximum value is restricted to 2 digits, converting from 4E to 101.6 mm will exceed the limit.)

No. 99MBC032A

4 - 33

4.5.3.6 F5: Setting the data output conditions

Set the data output conditions (0 to 9) and periodical output timer (0 to 999 sec.). The unit used with the periodical output timer is seconds. Setting it to “0” means that output

takes place for each measurement. In this example assume that the data output condition is 3 and that the periodical output timer

is 10 seconds. Step 1: The previously set data output conditions are

PROG

displayed. The setup data for the data output conditions is shown in the table below.

C.RUN

RS-232C DCU

—— — —

— —

—

C.RUN

RUN

Remark

The periodical output timer can be set

The periodical output timer can be set3

The periodical output timer can be set5

PROG

Data output condition Printer

0 1 2

6 7 8 9

: Outputted for each measurement if or key, etc., is pressed. : Press the or key to trigger the measurement. The measurement result will be outputted if it falls on GO. : Press the or key to trigger the measurement. The result will be outputted if it falls on ±NG. : No output will be made.

—

RUN

Enter “3” as the data output condition.

4 - 34

Step 2: Press the

ENT

key. If the data output condition is 1, 3, or 5, the operation proceeds to the periodical output timer setting, otherwise it proceeds to the sample measurement setting.

Step 3: Set the periodical output timer to 10 seconds.

Step 4: Press the

key to save the setup data in

ENT

memory. The operation enters the sample measurement setting.

PROG

No. 99MBC032A

4. SETTING UP THE MEASURING CONDITIONS

PROG

()

4.5.3.7 F6: Setting the sample measurement

Set the conditions for the sample measurement here. For this sample measurement use single-run measurement or continuous-run measurement,

and select either 0, 1 , or 2 to 999 samples.

selpmasforebmuNtnemerusaemnur-elgniS tnemerusaemnur-suounitnoC

999~2

.yalpsidehtno

In this example assume that the number of samples is 50, and the statistical item is range.

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ehtlitnuseunitnoctnemerusaemdna,tnemerusaemnur-elgnis

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.yalpsidehtnodehctalsitisadeyalpsideblliwmeti

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lamronatub,ecalpekattonseodtnemerusaemelpmasehT

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tluserehtdnaderusaemer

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ttonseodtnemerusaemelpmasehT

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tadebircsedtnemerusaemnur-elgnisehT

Step 1: The previously set number of samples flashes.

Enter “50” as the number of samples.

Step 2: Press the

ENT

key. If the number of samples entered is “1”, the operation proceeds to the automatic workpiece detection setting, otherwise if “0” or “2 to 999” is entered, it proceeds to the statistical item setting.

Step 3: Select the objective statistical item. Each time the

key is pressed, the setup option changes in the following order: → → → . Select in this example.

Step 4: Press the

ENT

key. The operation automatically proceeds to the automatic workpiece detection setting.

PROG

No. 99MBC032A

4 - 35

4.5.3.8 F7: Automatic workpiece detection setting

Set the conditions for automatic workpiece detection here. Select between 0 (no automatic workpiece detection) and 999 measurements, and select

between 0 to 9999 ms for the invalidation period. In this example assume the following: Number of measuring times =1, Invalidation period = 100 ms (0.1 sec), Lower detection limit

= 12.2 mm, Upper detection limit = 12.8 mm. Step 1: The previously set data output condition is

flashing.

Enter “1” as the number of measurements.

Step 2: Press the

ENT

key. The operation automatically proceeds to the invalidation period setting.

Step 3: Set the invalidation period to 100 ms.

Step 4: Press the

ENT

key. The operation automatically proceeds to the lower detection limit setting.

Step 5: Set the lower detection limit to 12.2 mm.

PROG

4 - 36

Step 6: Press the

ENT

key. The operation automatically proceeds to the upper detection limit setting.

Step 7: Set the upper detection limit to 12.8 mm.

Step 8: Press the

ENT

key. The operation automatically proceeds to the group judgment setting.

PROG

No. 99MBC032A

4.5.3.9 F8: Setting the group judgment

Set the conditions for the group judgment here. Select between 0 and 99 for group size (0 and 1 are used for not performing group judg-

ment). In this example assume that the group size is 5, and the objective statistical item is mean.

4. SETTING UP THE MEASURING CONDITIONS

Step 1: The previously set group size is flashing.

Enter “5” as the group size.

Step 2: Press the

ENT

key. If 0 or 1 is set for the group size in step 1 above, the operation automatically proceeds to the segment setting, which is the first stage of this function setup. Otherwise proceeds to the statistical setting.

Step 3: Select the objective statistical item, Each time the

key is pressed, the setup option will change

in the following order: → →

→ . Since “mean” is to be set in this

example, no key input is necessary at this step.

Step 4: Press the

ENT

key. The operation automatically proceeds to the group lower limit setting.

PROG

No. 99MBC032A

Step 5: Set the group lower limit in the manner similar to

that of the lower limit setting. Press the

ENT

key and the operation automatically proceeds to the group upper limit setting.

Step 6: Set the group upper limit in the manner similar to

that of the upper limit setting. Press the

ENT

key and the operation automatically proceeds to the segment setting, which is the first stage of this function setup.

PROG

4 - 37

4.5.3.10Confirming the function setup contents

Every setting that has been made in the function setup mode can be confirmed using the

key without affecting the existing setup data.

ENT

Step 1: In the ready state press the

to enter the segment setup mode.

Step 2: Each time the

key is pressed, each piece of setup data for segments through

ENT

group judgment will be displayed sequentially. Record these data in the List of Function Setups, at the end of this user's manual.

Step 3: Press the

key twice to return to the ready state.

SET

and

ENT

keys

PROG

4 - 38

No. 99MBC032A

MEASUREMENT MODE

Perform your measurement according to the basic setup and measuring conditions specified.

This chapter describes the items which can be set in the ready state and gives measurement examples.

5.1 Outline of the Measurement Mode

The measurement mode includes the ready state, single-run measurement mode, and continuous-run measurement mode.

1) Ready state

The BUSY LED flashes each time the measurement is performed.

2) Single-run measurement

The RUN LED stays lit from the start of measurement until the display latch timer expires, and the BUSY LED turns on each time the measured data is updated.

3) Continuous-run measurement

The RUN LED turns on if measurement starts and stays on during repeated measurements. The BUSY LED turns on each time the measured data is updated. When measurement is terminated the measured data is latched on the display and the RUN LED turns off when the display latch time expires.

5.1.1 Setup in the measurement mode

• This system employs a 2-section display unit, which enables continuous display of setup values while measurements are being made. Also, it provides a simple method for modifying the setup values.

• The setup mode of the specific setup items can be entered either by using the arrow key ( ) or by pressing the corresponding item keys directly.

No. 99MBC032A

5 - 1

5.1.1.1 Setup operation from the arrow key

If the key is pressed in the ready state, the setup operation will progress in the following way. The displayed contents will vary depending on the basic setup.

(If segment specificationis enabled)

PROG

(Where the arithmetical average is selected)

PROG

(If "target + tolerance" is specified)

PROG PROG

PROG

(If "lower limit value and upper limit value" is specified)

(If edge specification is enabled)

(Where the moving average is selected)

(Where the abnormal value elimination is specified)

(If the multi-limit selection is specified)

PROG

(This is not displayed when the target value is copied to the reference value.)

(This is not displayed if the offset function is canceled.)

(Where the group judgment is specified)

5 - 2

No. 99MBC032A

5. MEASUREMENT MODE

• The setting procedure is as follows:

Step 1: Press the key in the ready state to enter the

setup mode.

Step 2: Each time the key is pressed, the setup guidance for each setup item changes

in the following order: ( → ) → ( ) → ( → ) → → ( → ••• or →

→ ) → ( ) → → ( ) → ( → ). Press the

key when the desired setup option is flashing. Press the key to reverse

ENT

this order.

Step 3: Modify the setup data. The method used to enter data is the same as that used in the

function setup mode. For practice, modify the offset value from 12.5 mm to 12.34567 mm. The previously set data is displayed and its least significant digit is flashing.

Enter “12.34567”.

56.3

PROG

Step 4: Press the

key to initiate the following

ENT

PROG

operation flow: Measure a reference gage, execute the compensation calculation, save the setup data in memory, then return to the ready state. If the insertion of a comma after the thousandth

(In single measurement)

digit has been specified in the basic setup, the comma will be automatically inserted.

For a single measurement the most recent setup

PROG

item will always be displayed in the upper section of the display unit. However, the upper section of the display unit shows a background measurement in the simultaneous measurement.

(In simultaneous measurement)

TIP 1. In simultaneous measurement the upper section of the display unit shows a

background measurement. However, the setup mode for the foreground program can be entered by pressing the key.

2. In single measurement, if an important setup item being displayed in the upper section of the display unit is retained, confirmation of the measuring object and modification of the setup data is easy.

3. If the pended and the ready state is restored. This can be used to confirm the setup data.

4. The last setup item made will be displayed first.

key is pressed halfway in the setup operation, the operation is sus-

SET

No. 99MBC032A

5 - 3

5.1.1.2 Setup that can be made directly from each setup item key

The user can enter the specific setup mode by pressing the corresponding setup item key (

LIMIT,SHIFT

MASTER/OFFSET,REF

, or

LOCK/UNIT

) in the ready state.

LIMIT

key

This key is used to enter the setup mode for only the GO/NG judgment function. If the

key is pressed after the setup data is

ENT

entered, the set up data will be saved in memory and operation will return to the ready state. If the or

key is pressed halfway in the setup operation,

SET

LIMIT

the setup operation is aborted, and operation returns to the ready state.

SHIFT

MASTER/OFFSET

key

This key combination is used to enter the setup mode for only the mastering function. If the

key is pressed after the setup data is

ENT

entered, the set up data will be saved in memory and operation will return to the ready state. If the

OFFSET

key or

key is pressed halfway in the setup

SET

MASTER

operation, the setup operation is aborted, and operation returns to the ready state.

REF

key

This key is used to enter the setup mode for only the reference value. If the

key is pressed after the setup data is entered,

ENT

the setup data will be saved and the operation will return to the ready state. If the

REF

key or

SET

key is pressed halfway in the setup operation, the setup operation is aborted, and operation returns to the ready state.

PROG

key

PROG

5 - 4

LOCK/UNIT

This key is used to enter the modification mode of the unit of

key

PROG

measurement. If the metric unit is currently being used, will be flashing; and if the E unit is currently being used, will be flashing. If the

key is pressed, the unit is changed to that which is currently flashing, then

ENT

operation returns to the ready state. If the

LOCK/UNIT

key or

key is pressed halfway in the setup operation, the setup

SET

operation is aborted, and operation returns to the ready state.

The metric to E (1 E = 25.4 mm) conversion table is shown below.

mm10000.020000.050000.01000.02000.05000.0

E*100000.100000.200000.500000.10000.20000.

mm100.0200.0500.010.01.0–

E50000.1000.20

00.5000.500.–

.1000

00.fonoituloseraotnidetrevnoceblliweulaveht,MSLsihtnO.5000000.fo

eulavanistlusermetsysEehtotni)"*"(ksiretsanahtiweulavafonoisrevnoc,yllaciteroehT:1etoN

."edom0B",1.2.1.4noitceSotreferdetcelesebnactahtsnoituloserehttuobanoitamrofniroF:2etoN

No. 99MBC032A

5.2 Other Functions

From the ready state it is possible to activate the following modes.

5.2.1 Key lock

5. MEASUREMENT MODE

Press the operations other than

SHIFT

and

LOCK/UNIT

SHIFT

press the same keys again. However, if the key lock mode is initiated by the “LOCK” command from the RS-232C

interface, it can not be canceled by any key operation. The only way the key lock mode is canceled is by turning the power off.

5.2.2 Displaying the measuring position

• If the position) display mode is entered. The ready state can be returned to if the

SET

PROG

• The displayed value is not defined, but a value that is proportional to the beam diameter at the measuring position. Since the measurement is defined at the focal position where the displayed value is the smallest, take measurements at a position as close to the focal position as possible. If the measured position is off the focal position, the measurement accuracy will be reduced.

and

SHIFT

READ

key is pressed.

keys are pressed in the ready state, the measuring position (focal

keys to activate the key lock mode. Subsequently, key

and

LOCK/UNIT

keys will not be accepted. To cancel this mode,

READ

key or

PROG

Measuring position

• Beam diameter at each position The laser scanning beam is stopped down so that it has a minimum diameter at the measurement position (focal position). Since the beam diameter gets thicker the farther it gets from the focal point, the repeatability will be reduced if measurements are taken far out. Therefore, always perform measurement at the focal position.

f–θ Lens

Focal position

Beam diameter at each position

• Check the measurement position in the up/down direction with the W.P. LED.

No. 99MBC032A

5 - 5

5.3 Applied Measurement

Perform measurement according to the conditions set. This section gives example operations for a better understanding of the versatile functions of

this instrument. For information about actual setup methods refer to Section 3.4, “Outline of Key Opera-

tions”, Section 4.1, “Basic Setup”, and Section 4.5, “Setting up the Functions”.

5.3.1 OD measurement of a precision-machined workpiece

Perform a single-run measurement and make a GO/NG judgment of the workpiece OD.

• Suppose that D = 10

± 0.002

mm.

• Set the following:

1. Segment = 2

2. Number of scans for averaging = 512 or more For precision measurement set a large value.

3. GO/NG criteria a. Lower limit value = 9.998 mm b. Upper limit value = 10.00201 mm

(If 10.002 mm is accepted as GO, add the resolution to this value. This also applies to the following examples.)

• Measurement

1. Perform measurement in the ready state. The GO/NG LEDs and RUN LED are off, and the BUSY LED turns on for each measurement.

2. Start a single-run measurement. “ ” will be displayed in the lower section of the display unit. Also, the RUN LED lights and stays lit.

Laser scan direction

PROG

-NG

PROG

-NG

+NG

Segment 1 Segment 2 D

Segment 3

RUN

BUSY

RUN

BUSY

5 - 6

3. After the set measurement interval (approximately

PROG

0.32 seconds, for 512 times averaging), the BUSY LED lights for a moment, then the measured data is latched on the display.

The measured data is subjected to GO/NG judgment,

-NG

+NG

and the result will be outputted on the GO/NG LEDs. It will also be, depending on the setup, outputted to the RS-232C (printer) and Digimatic Code Output Unit.

TIP About the number of scans for averaging and repeatability

If high accuracy is required, select the largest number of scans for averaging possible. In general, doubling the number of scans for averaging improves repeatability by 1.4 times.

RUN

BUSY

No. 99MBC032A

5.3.2 Measurement of magnet coil wire that runs at high speed

This instrument makes 1600 scans per second, which makes it possible to make high accuracy measurements of workpieces that move at high speed and vibrate.

In the wire drawing process or coating process in which the wire OD must be precisely controlled, it is usual to feed back the OD measurement data so that the diameter of the wire can be controlled to within the tolerance limits. To avoid a significant change in the feedback, it is most common to use the moving average.

Below is an example of magnet coil wire with a diameter of ø0.05

• Basic setup

1. GO/NG judgment in the ready state Specify that GO/NG judgment be performed in the ready state.

2. Averaging method Specify the moving average.

3. Method of GO/NG judgment Specify (target value + tolerance) In addition, set so that the target value can be copied onto the reference value.

4. Other settings Set as required for the operation environment.

5. MEASUREMENT MODE

± 0.001

mm (50 ± 1 µm):

• Function setup

1. Segment = 2

2. Number of scans for averaging = 512 (or, 1024 or 2048 times)

3. GO/NG judgment a. Target value = 0.05 mm

The same value will be automatically set for the reference value. b. Lower tolerance limit = -0.001 mm c. Upper tolerance limit = 0.001 mm

• Measurement

If the power is on, measurement automatically starts after the internal error checks have been performed. The measured data will be displayed. At the same time the GO/NG judgment result will be outputted for the GO/ NG LEDs.

PROG

-NG

+NG

RUN

BUSY

No. 99MBC032A

5 - 7

5.3.3 Measurement of the lead pitch of a multiple-pin IC

If the edge specification is made, it is possible to measure a dimension between two optional edges from between 1 and 255 edges. This can be applied to inspecting the IC lead bend and measurement of the head gap of an HDD.

Below is an example where the IC lead bend of a 160-pin flat package IC must be checked using the automatic workpiece detection function. Assume that the pin thickness and lead-tolead interval are identical according to the specification.

The following IC specifications are used: 40 leads are on one side, the lead-to-lead interval is

0.635 mm (1/40"), the pitch tolerance is 0.01 mm.

• Basic setup

1. Segment specification Specify the edge specification method.

2. Automatic workpiece detection Specify use of automatic workpiece detection.

• Function setup

1. Segment a. Start segment = 2 b. Finish segment = 81

(Last lead number x 2 +1)

2. Number of scans for averaging = 32

3. GO/NG judgment a. Lower limit = 0.625 mm b. Upper limit = 0.645 mm

4. Setting automatic measurement Specify the pitch measurement.

5. Automatic workpiece detection setup Measurement time = 1 Invalidation period = 20 ms Lower detection limit = 0.6 mm Upper detection limit = 0.67 mm

Laser scan direction

1PIN

2PIN

3PIN

39PIN

40PIN

Edge 1

Edge 2

P39

Edge 8

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No. 99MBC032A

Mitutoyo LSM-9506 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual