CenterMax

Coordinate measuring
machine for series
production

Operating Instructions
Read this first! • Please read these operating instructions, before starting up the
measuring machine.
• For your own safety, always keep all relevant documents within
easy reach at all times.

We reserve the right to make changes in the version and scope of

delivery of the basic CMM and its options, the program packages and
their respective documents.
The passing on or duplication of this document as well as the use or
disclosure of its contents are prohibited unless express permission is
granted. Violations will be prosecuted.
All rights reserved, especially in connection with the granting of pat-
ents or the registration of a utility model.
We reserve the right to revise this manual and perform technical mod-
ifications of the CMM and its components.
All product names are registered trademarks or trademarks belonging
to the respective proprietors.

Carl Zeiss CenterMax: Operating Instructions

Industrial Metrology Revision status: 1.1
Business Group Date of issue: 01/02
D-73446 Oberkochen Order No.: 61211-1020202
Contents
Foreword
Information about these operation instructions . . . . . . . . . . . . . . . 1
Symbols / danger warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
For your orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Chapter 1 Introduction
General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
CE marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Safety of the machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Standards and regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Additional documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Separate documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Supplementary literature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Proper use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

CMM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Probe system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Requirements for person responsible for CMM . . . . . . . . . . . . . . . 1-9
Definition of a specialist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Safety symbols on the CMM . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
Requirements for the safe use of the CMM . . . . . . . . . . . . . . . . 1-10
Safety devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11

Chapter 2 Description of the CMM

Identification of a CMM . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Design of the CMM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

61211-1020202 Operating Instructions Contents 1

 Components and their functions . . . . . . . . . . . . . . . . . . . . 2-4
Bridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Measuring table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Coordinate axes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Control cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Operating elements of the control cabinet . . . . . . . . . . . . . . . . 2-8
Control console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Operation of the joysticks. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
Calibration standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

Probe system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14

Probe system types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
Components of a probe system . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
Functions of the components . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
Standard version of the probe system. . . . . . . . . . . . . . . . . . . 2-15
VAST probe system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
limiting values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
Temperature-sensing probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17

Probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
Probe components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
Design and function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
Probe elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
Principles for assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
Screwing technique . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23
Clamping technique. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24
Storage of probes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24

Probe rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26

Chapter 3 Technical data

Coordinate measuring machine . . . . . . . . . . . . . . . . . . . . . 3-2
General data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
CMM parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Contents 2 61211-1020202 Operating Instructions

 Connection data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Travel speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Environmental conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Probe system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

VAST probe head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Chapter 4 Transport and installation

Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
To be observed on delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Transport conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Selecting the installation site . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Prerequisites for installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Chapter 5 Preparations for start-up

Before you start! . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Connecting the power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Connecting the compressed-air supply . . . . . . . . . . . . . . . . . . . . . 5-3
Requirements for compressed-air supply . . . . . . . . . . . . . . . . . 5-4
Compressed-air connection to the CMM . . . . . . . . . . . . . . . . . 5-4
Pressure gages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Adjusting the pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Filter units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

Mounting the probe rack (option) . . . . . . . . . . . . . . . . . . . 5-8

Prerequisites for the probe rack . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
Installation procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8

Visual check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14

Start-up preparation checklist . . . . . . . . . . . . . . . . . . . . . 5-15

61211-1020202 Operating Instructions Contents 3

 Chapter 6 Start-up
Clamping the workpiece on the measuring table . . . . . . 6-2
Safety measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Clamping the workpiece . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Workpiece positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Lowering the workpiece onto the measuring table . . . . . . . . . . . . 6-4

Switching the CMM on . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5

Safety measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
Switch-on sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5

Checking the protective circuit . . . . . . . . . . . . . . . . . . . . . . 6-8

Function of the protective circuit . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8

Mounting / changing the probe head . . . . . . . . . . . . . . . 6-11

Probe assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12

Screwing technique or clamping technique? . . . . . . . . . . . . . . . . 6-12
Safety measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12
Criteria and limiting values for assembling probes . . . . . . . . . . . 6-13
Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-14

Inserting / removing the probe . . . . . . . . . . . . . . . . . . . . 6-16

Safety measures and information . . . . . . . . . . . . . . . . . . . . . . . . 6-16
Inserting the probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16
Removing the probe (manually) . . . . . . . . . . . . . . . . . . . . . . . . . 6-17

Start-up checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-19

Chapter 7 Measuring operation

What you should know! . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
Coordinate systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
Probing directions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
Types of measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
Single point probing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
Multipoint measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
Scanning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5

Contents 4 61211-1020202 Operating Instructions

 Collision protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6
Axis clamping with VAST probe system . . . . . . . . . . . . . . . . . . . . 7-6
All axes unclamped . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7
Clamped axes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7
Self-centering probing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8
Temperature-sensing probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9
Notes on temperature measurement . . . . . . . . . . . . . . . . . . . . 7-9
Possibilities. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-10
Operating mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-11
Measuring software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-12

Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-13

Preparations for a measuring run . . . . . . . . . . . . . . . . . . 7-14

Prerequisites for a perfect measuring run . . . . . . . . . . . . . . . . . . 7-14
Reference point travel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-14
Reference point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-14
Carrying out a reference point travel . . . . . . . . . . . . . . . . . . . 7-16
Probe calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-16
What you should know!. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-17
Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-17
Calibration procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-19
Causes of large deviations . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-21
Temperature compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-22
What is temperature compensation? . . . . . . . . . . . . . . . . . . . 7-22
Connecting the temperature sensors . . . . . . . . . . . . . . . . . . . 7-22

Probing the workpiece . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-24

How to ensure correct measurement . . . . . . . . . . . . . . . . . . . . . 7-24
Probing procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-24
Selecting the type of probing . . . . . . . . . . . . . . . . . . . . . . . . . 7-24
Probing sequence. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-24
Probing conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-24
Probing speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-25
Aligning the probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-26
Preventing measuring errors. . . . . . . . . . . . . . . . . . . . . . . . . . 7-26
Special features of VAST probe system . . . . . . . . . . . . . . . . . . . . 7-27
Setting the measuring force . . . . . . . . . . . . . . . . . . . . . . . . . . 7-27
Precision positioning during probing . . . . . . . . . . . . . . . . . . . 7-28

61211-1020202 Operating Instructions Contents 5

 Notes on scanning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-29

Automatic probe change . . . . . . . . . . . . . . . . . . . . . . . . . 7-30

Tips for effective operation . . . . . . . . . . . . . . . . . . . . . . . 7-31

Evaluating the measuring data . . . . . . . . . . . . . . . . . . . . 7-32

Limiting values for deviations . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-32
Causes of large deviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-32

Terminating a measuring run . . . . . . . . . . . . . . . . . . . . . . 7-33

Effect of system shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-33
Shutdown procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-33

Chapter 8 Errors and faults

Errors occurring prior to the measuring run . . . . . . . . . . . 8-2

Faults during the measuring run . . . . . . . . . . . . . . . . . . . . 8-3

Special measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5

After collision . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5
Probe head outside the measuring volume . . . . . . . . . . . . . . . . . . 8-5

If nothing else helps, ... – hotline! . . . . . . . . . . . . . . . . . . . 8-9

Chapter 9 Maintenance and care

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5
Care measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5
Inspection measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-8
Checking the probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-8
Cleaning/changing the filter mat . . . . . . . . . . . . . . . . . . . . . . . 9-9
Changing the compressed air filters . . . . . . . . . . . . . . . . . . . . 9-10

Index

Glossar

Contents 6 61211-1020202 Operating Instructions

Appendix
Application examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

61211-1020202 Operating Instructions Contents 7

Contents 8 61211-1020202 Operating Instructions
Foreword
Information about these operation
instructions
CenterMax coordinate measuring machine (CMM) is described in
these operating instructions.
These operating instructions address operators and users of the coor-
dinate measuring machine.

Short information about the contents:

– Warranty and safety-relevant information in ➤ Chapter 1 “Intro-
duction” on page 1-1.
– What is what, e.g. quill, coordinate axes? What is required for
operating the CMM? The answers can be found in ➤ Chapter 2
“Description of the CMM” on page 2-1.
– Dimensions, connection data, travel speed, environmental condi-
tions of the CMM and probe system data can be found in
➤ Chapter 3 “Technical data” on page 3-1.
– You want to install the CMM at another place. Or you want to
install an additional CMM. For more information, please refer to
➤ Chapter 4 “Transport and installation” on page 4-1.
– Making connections, mounting of probe racks, general visual
check prior to start-up. For more information, please refer to
➤ Chapter 5 “Preparations for start-up” on page 5-1.
– The workpiece and the CMM must be prepared before starting the
measuring run. To do so, please refer to ➤ Chapter 6 “Start-up” on
page 6-1.
– Connections made, workpiece clamped on measuring table, probe
system prepared. The preparations for the measuring run can
begin ➤ Chapter 7 “Measuring operation” on page 7-1.
– In case the CMM is not doing what you expect it to, please refer to
➤ Chapter 8 “Errors and faults” on page 8-1.
– A CMM also requires care, especially for ensuring safe and correct
measurements. The corresponding measures are explained
➤ Chapter 9 “Maintenance and care” on page 9-1.
Further chapters:
– Detailed listing of all chapters: ➤ Contents.
– Explanation of important terms: ➤ Glossar.
– Examples of CMM applications: ➤ Appendix.

61211-1020202 Operating Instructions Foreword

 Symbols / danger warnings
Three special symbols which always denote important information are
used in this manual.
These symbols appear in the left-hand margin of the page and directly
adjacent to the corresponding text.

! Danger!
Special caution is advisable here. The warning triangle and the adja-
cent text indicate a possible danger of injury.
Failure to observe this warning may result in injury to the operator.

! Important!
This symbol warns you of situations which might cause measuring
errors, interfere with a measuring run or even lead to collisions result-
ing in damage to the CMM and/or the workpiece.

NOTE This symbol indicates additional and helpful information.

For your orientation

The following typographical conventions are used in this manual:

Example Description
not – Words are emphasized by placing them in
italics.
– Italics are often used to set apart an inter-
mediate heading, e.g. Type of
measurement:
Protective circuit Specially emphasized words are printed in
bold type.
no grease film Words specially emphasized in warnings are
also printed in bold type.
Blue bold type is sometimes used to mark a
listing, e.g.
ST-ATAC: ...
VAST: ...
➤"Measurement“ on Reference to a text passage where you can
page ... find more information.
➤ Page ...

Foreword 61211-1020202 Operating Instructions

Example Description
1 Remove probe. Instructions which must be followed in
chronological order.
2 Uncover adapter
plate receptacle.
• Place the work- Instructions
piece ...
• Switch off the drives Instructions in warnings, e.g. danger warn-
so that ... ing.
1 Turning lever for ... Description of item numbers in a drawing
2 Metal plate with ...
A Adapter Description of item numbers in a drawing
B Probe head

61211-1020202 Operating Instructions Foreword

Foreword 61211-1020202 Operating Instructions
 Chapter

1 Introduction
.................................................................................................................................
This chapter informs you about the applications of the CMM and the
prerequisites for safe use.

This chapter contains:

General information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Additional documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Proper use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

61211-1020202 CenterMax Operating Instructions 1- 1

Introduction

General information

Scope of delivery
The standard version of the CenterMax coordiante measuring
machine is delivered with the following components:
– Coordinate measuring machine (CMM)
– Control
– Control panel – standard version
– Computer with peripheral units
– Software – e.g. UMESS-UX
– Documents
– Probe system
– Master probe
– Reference sphere – for calibration of probes
– Temperature sensor – for measuring the workpiece temperature
– Temperature probe.

CE marking
The CE marking confirms the system's conformity with the basic
requirements of the following CE directives:
– Machinery directive 98/37/EC
– Low voltage directive 73/23/EEC
– EMC directive 89/336/EEC.
The fact that the CMM meets the above requirements is indicated by
the CE marking on its type plate.

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 General information

Safety of the machine

Approvals for the CMM:

Europe GS marking of the professional associations of

precision engineering and electrical engineering.

Standards and regulations

The CMM is designed, manufactured and tested according to the fol-
lowing standards and regulations:
Regulations – BGV A1 (VBG 1): Accident prevention regulations –
General regulations
– BGV A2 (VBG 4): Accident prevention regulations –
Electrical systems and equipment
Standards – DIN/VDE 0100:
Regulations for electric power installations with nominal voltages
of up to 1000V
– EN 61010 part 1:
Measuring machines, control units, controllers and laboratory
equipment
– EN 60204 part 1:
Safety of machines – electrical equipment of machines
– EN 292, part 1:
Safety of machines – basic terminology
– EN 292, part 2:
Safety of machines – technical directives and specifications
– EN 61326:
EMC – interference immunity; interference emission, class A
– CSA C22.2 No. 1010.1:
Safety requirements for Electrical Equipment for measurement,
control and laboratory use.
– UL 3101-1:
Standard for Electrical Equipment for Laboratory use.

61211-1020202 CenterMax Operating Instructions 1-3

 Introduction

Additional documents

Separate documents
Components for which separate documents are available are referred
to in these operating instructions.
Separate documents are available for the following components:
Standard The following documents are delivered with each CMM:
– General safety instructions
– Control console – standard.
Option The following document is delivered if the CMM is equipped with the
corresponding option.
– Loading device.

Supplementary literature
"Einfach messen – und was Sie dazu wissen sollten". The primer of
measurement technology.
Carl Zeiss, Unternehmensbereich Industrielle Messtechnik, order no.:
612302-9002.

1-4 61211-1020202 CenterMax Operating Instructions

 Warranty

Warranty
Notes
– The specifications and statements in the German operating
instructions are prevalent and binding for translations into other
languages.
– All rights pertaining to changes in the coordinate measuring
machine and its options, the software packages and the pertaining
documents reserved.
– All rights reserved, especially in cases of granting a patent or regis-
tering a utility model.
The warranty does not cover the following:
– incidentals
– wearing parts.

Exclusion of warranty
The manufacturer cannot be held liable.....
– for actions contrary to the instructions in this manual,
– if the coordinate measuring machine version delivered by us was
changed,
– if maintenance work is not carried out by personnel specially
trained at Zeiss,
– if measures for care are not taken by the operator or user accord-
ing to the specified measures,
– if original spare parts are not used for maintenance and repair
work,
– if the necessary maintenance work and measures for care are not
carried out according to the Customer Documentation.
All information regarding maintenance work and measures for care,
incidentals and wearing parts is contained in the Customer
Documentation manual.

61211-1020202 CenterMax Operating Instructions 1-5

 Introduction

Proper use
Warranty
The coordinate measuring machine (CMM) may be used only for its
intended purpose. The user is liable for any damage incurred during
improper use of the CMM.

CMM
The CMM can be used to determine the geometric sizes of work-
pieces. The workpieces may be made of metal or plastic.
Movable axes The CMM can be moved in all axes and probes the workpiece in the x,
y and z coordinate directions. A rotary axis is available when using a
rotary table.
Dimensions, position Geometric sizes are for example width, length, height as well as the
and form diameter and depth of bores.
The position of bores is calculated from the measuring data. Further-
more, the form of workpieces, e.g. the form of a turbine bucket can
be determined by means of a special software.

! Danger!
The CMM must not be used for determining geometric sizes of work-
pieces. The CMM must not be used for any purposes other than those
listed below.
Only workpieces and objects required for measurement may be
placed on the measuring table.

Functions of the CMM:

– Workpiece probing in six directions (±x, ±y, ±z).
This is ensured by means of three moving machine axes. Probing is
executed by a probing system. For measurement, the workpieces
must be fastened on the measuring table.
– The measuring table has the following functions:
– Support of one or more workpieces
– Support of the calibration tools
– Storage of a probe rack (option)
– Storage of a rotary table (option) – the rotary table is either inte-
grated in the measuring table or attached on top of it.
– Fastening of the workpieces and installation of the probe racks,
calibration tools and the rotary table via the threaded holes pro-
vided in the measuring table.

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 Proper use

Improper use
The CMM must not be used for purposes other than the proper use.
Examples for use contrary to the proper use:
– The machine axes must not be used to move objects.
– The z axis of the CMM must not be used to lift objects.
– The CMM must not be used to measure living objects or parts of
the body.

Probe system
The probe system is a hightech product which may only be used only
for its intended purpose.
Probing CMM probe systems are designed to determine the coordinates of a
workpiece. This is usually achieved via a probing, during which the
workpiece is probed by a probe element (stylus tip). In some cases
optical measuring techniques are used.
Linear scales The probe system comprises several components, such as the probe
head and linear scales. The linear scales are integrated in the machine
axes of the CMM and protected by covers. These covers must be
attached when the CMM is in operation to prevent it from being used
improperly.

Probe
The probe consists of several components: adapter plate, probe styli
and probe joints. A probe may be equipped with one or more styli.
The probe element is located at the end of the stylus.
Functions of the probe:
– The adapter plate holds and positions the probe exactly in the
probe head.
– Workpiece probing is carried out by the probe element.

Probe head
The probe head is inserted in the quill. The probe used for probing is
inserted below the probe head. Handle the probe head and probe
very carefully.
Functions of the probe head:
– Holding the probe.
– Exact positioning of the probe.

61211-1020202 CenterMax Operating Instructions 1-7

Introduction

– Detection of probe deflection and transmission of the signal to the

computer.
The computer calculates the coordinates of the probed point.

Improper use
The probe head and probe must not be used for purposes other than
the proper use.
Examples:
– The probe head must not be used as a support.
– The probe must not be used as lever arm, e.g. to loosen a ring bolt.
– The probe must not be used as striking tool.

1-8 61211-1020202 CenterMax Operating Instructions

 Safety

Safety

Requirements for person responsible for

CMM
The person responsible for the CMM must ensure that:
– The installation site requirements are met.
– The operator has been properly instructed regarding handling and
operation of the CMM.
– The operator has received the operating instructions for working
with the CMM. The operating instructions must be suitable for all
local and operating conditions and available in the language spo-
ken by the operating personnel.
The operating instructions must always be available within easy
reach of the CMM.
– The operator must know and observe the safety instructions.
– Maintenance work and work on electrical equipment must be car-
ried out only by competent specialists.

Definition of a specialist
A specialist is a person who due to his
– training
– experience
– instruction
and knowledge of
– relevant standards
– legal regulations
– accident prevention regulations
– and operating conditions
has been authorized by the safety officer responsible for the CMM to
perform the currently required actions and therefore is in a position to
recognize and avoid potential dangers.

61211-1020202 CenterMax Operating Instructions 1-9

Introduction

Safety symbols on the CMM

The following symbols are attached to the coordinate measuring
machine (CMM) and the control cabinet.

Danger symbol for electric voltage:

This symbol indicates a personal health
hazard of persons.
The symbol is attached to the front and rear
side above or below the door latch.

! Danger!
Any work on the control cabinet must be carried out only by an elec-
trical engineer.

Before opening the control cabinet, disconnect the control cabinet

from the power supply:
• Switch off the main switch – position "0“ – and secure it so that it
cannot be restarted.
• In case of plug connection:
Disconnect the power plug from the socket.

! Danger!
Components in the control cabinet are still live, e.g. line filter, even
after switching off the main switch.

Danger symbol:
This symbol indicates a danger for persons and
the CMM and its components.
This symbol is attached to the CMM, the con-
trol panel or the control cabinet.

Requirements for the safe use of the CMM

In order to ensure safe operation of the coordinate measuring
machine (CMM), certain requirements must be met.
Observe the following:
• Always comply with the generally recognized accident prevention
regulations and safety instructions.
• Operate the CMM only with the protective devices provided for
that purpose.
• Do not remove any covers, protective equipment or warning
signs.

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 Safety

• Only use power cables and connectors which are in perfect condi-
tion.
• Insert the power connectors only in sockets equipped with a per-
fect protective ground connection.
• Do not exceed the maximum permissible workpiece weight.
No warranty claims The manufacturer of the machine cannot be held liable for any dam-
age caused by unauthorized interventions in the measuring system. In
case of unauthorized manipulations, all warranty claims against the
manufacturer and supplier as well as the validity of the EC declaration
of conformity are null and void.
Documents Correct operation of the CMM is required for a safe measuring run. It
is assumed that you are familiar with the documents included in the
scope of delivery.
• Ensure that the operating instructions for the CMM are always
available within easy reach of the CMM.

NOTE Where necessary, further safety instructions are mentioned in these

operating instructions. Furthermore, a separate document regarding
"Safety" is also available.
• Please read the notes in the document entitled "Safe operation of
bridge CMMs"

Safety devices
The coordinate measuring machine (CMM) is equipped with safety
devices. Some devices are standard devices, others are optional.
Standard The standard safety devices include:
– The EMERGENCY STOP button on the control panel
– The quickstop button on the control cabinet
– Thrust force limiting (hardware) and drive monitoring (software)
– Drop protection of the quill
– Collision protection for the probe head and the probe; effective in
manual mode (vmax = 70mm/s).
Option Optional safety devices are:
– Light barrier
– Footswitch mats.

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Introduction

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 Chapter

2 Description of the CMM

.................................................................................................................................
This chapter provides a general overview of the CMM and its compo-
nents.

This chapter contains:

Identification of a CMM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Design of the CMM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Components and their functions . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Probe system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Probe. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Probe rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

61211-1020202 CenterMax Operating Instructions 2- 1

 Description of the CMM

Identification of a CMM
The CenterMax is identified by the size of its working range. This
range is specified by its length in the x, y and z axes.

Identification of CenterMax:
Identification: 11/12/7
Ref. no. Working range
11 x: 1100 mm
12 y: 1200 mm
7 z: 700 mm

NOTE The working range does not correspond to the measuring range.
Please refer to the technical data for more information on the measur-
ing range.

Type plate The identification of your CMM is given on the type plate. The type
plate is located on the front side of the measuring table.

1 2 3 4

1 Serial number
2 Year of manufacture
3 Number of the CMM type
4 Series and identification of the CMM type.

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 Design of the CMM

Design of the CMM

A CMM of the series CenterMax is illustrated in the following.

2
6
3

1 Quill cover
2 X-bridge with concertina cover
3 Drive-side and guideway-side
4 Probe head
5 Measuring table
6 Guideway-side

61211-1020202 CenterMax Operating Instructions 2-3

 Description of the CMM

Components and their functions

Bridge
The CenterMax is a bridge coordinate measuring machine. The bridge
is composed of a crossbeam and two guideways. The quill is guided
on the crossbeam of the x-bridge.

3
4
1

1 Crossbeam
2 Drive side and guideway side
3 Quill
4 Guideway.

Measuring table
The workpieces to be measured are placed on the measuring table.
Threaded holes Threaded holes are provided in the measuring table. These are used to
fasten workpieces and calibration tools on the measuring table. The
threaded holes are distributed on the measuring table. For more infor-
mation, please refer to the document "Installation Instructions“.

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 Components and their functions

Measuring volume The measuring volume is the space in which workpieces can be
probed.

1 Measuring volume

Coordinate axes
Travelling in the x, y and z axes is possible with the coordinate mea-
suring machine.
Travel directions The drawing shows the possible travel directions of the bridge.

61211-1020202 CenterMax Operating Instructions 2-5

 Description of the CMM

x direction
Crossbeam The x-bridge crossbeam is mounted on the columns and supports the
quill. The quill is guided on the crossbeam and can be moved back
and forth. Thus, probing in the x direction is possible.

y direction
Columns The drive and guideway side columns support the cross beam and the
quill and the frictionless air bearings enable movement of the com-
plete bridge in the y direction.

z direction
Quill The quill is guided along the crossbeam. It can be moved in the
vertical direction and allows probing in the z direction. The probe sys-
tem is located at the bottom of the quill.

Control
Control cabinet
32 bit / C99 The control for the CenterMax is located in a separate control cabinet.
The CenterMax is equipped with a 32 bit control. The control has the
designation C99.
IP54 The housing of the control cabinet has protection class IP54.
Front side of the control cabinet:

2
3

1 Operating elements
2 Type plate for control cabinet
3 Door lock
4 Warning symbol for electric voltage: The control cabinet must be opened
only by an electrical engineer.

2-6 61211-1020202 CenterMax Operating Instructions

 Components and their functions

Rear side of the control cabinet:

1
2
3

4
5
6
7
8
9
10

1 Fan
2 Air filter
3 Warning label: Replace or clean soiled air filter!
4 Door lock
5 Warning symbol for electric voltage: The control cabinet must be opened
only by an electrical engineer.
6 Plate with technical data
7 Attention symbol: Observe the information on the plate!
8 Connector for peripheral devices
9 Power supply of the control cabinet
10 Cables leading to the CMM.

61211-1020202 CenterMax Operating Instructions 2-7

 Description of the CMM

Operating elements of the control cabinet

The following operating elements and indicator lamps are located on
the control cabinet:

8 7 6 4 2 1
5 3

1 Main switch for power supply

2 Rotary switch for the control
3 Indicator lamp for control; green
4 Rotary switch for drives
5 Indicator lamp for drives; green
6 Key-operated switch for operating modes
7 Working-hour meter
8 Push-and-turn switch for quick stop; for cases of emergency
The functions of the operating elements are explained in the follow-
ing.
Power supply Main switch (1): The main switch is used to switch the power supply
of the coordinate measuring machine on and off.
a Direction of rotation for switching on and off; 0=On, 1=Off
a b Detent opening; in position 0 the switch can be protected against
b unauthorized switch-on.
c Position 0; power supply is switched off.
c

Control Rotary switch (2) and indicator lamp (3): The rotary switch is used to
switch the control on. If it is in the ON position, the control is
switched on. The indicator lamp above the switch lights up.
Drives Rotary switch (4) and indicator lamp (5): The rotary switch is used to
switch the drives on.
Turn the switch clockwise. The switch does not remain in the new
position. It returns to its initial position.

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 Components and their functions

When the drives are switched on, the indicator lamp above the switch
lights up.
Operating modes Key-operated switch (6): The key-operated switch is used to deter-
mine the operating mode in which the measurements are to be car-
ried out.
– MAN: The measurement is carried out manually. The workpiece
is probed by means of the joysticks on the control console. The
maximum speed is limited ➤“Travel speed” on page 3-3.
– OFF: No travel movement possible.
– AUTO: The measurement is carried out automatically, e.g. by
means of a CNC program. Before setting this operating mode, you
should test the CNC program in the MAN operating mode.
Working-hour meter The working-hour meter (7) counts the number of hours during
which the drives remain activated.
Quickstop button Push-and-turn switch (8): The quickstop button can be pressed to
stop all travel movements in cases of emergency. It engages when
pressed. All drives are switched off.
The quickstop button must be released before switching on the
drives. Release the button by turning it counterclockwise. Then, the
drives can be switched on again by means of the rotary switch
➤ page 2-8.

Control console
The CenterMax is equipped with the standard control console on
delivery. However, it can also be delivered with the Dynalog control
console on request. Each of these control consoles is described in a
separate manual.

61211-1020202 CenterMax Operating Instructions 2-9

 Description of the CMM

Standard control console

1 3

4
2

1 Control knob for speed adjustment

2 Joystick for the z axis and the rotary table (option); the joystick is
equipped with a push button for setting intermediate positions
3 EMERGENCY STOP button
4 Keypad
5 Joystick for the x and y axis; the joystick is equipped with a push button
for setting intermediate positions.

EMERGENCY STOP but- The drives are switched off by pressing the EMERGENCY STOP but-
ton ton. Press the button to switch off the drives. The button engages. No
further travel movements are possible.
The button must be unlocked in order to switch the drives on again.
• Unlock the button by turning it.
Then the button is pushed up. The button is unlocked.

Operation of the joysticks

The joysticks are required for travel control. This applies to manual
and automatic probing. Prior to automatic probing, manual probing is
required to program the automatic measuring run.

Right joystick
x and y direction The right joystick is used to move the probe in the x and y direction.
The bridge moves in the y direction, the quill in the x direction.

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 Components and their functions

Deflect the joystick in the direction required to move the probe

toward the workpiece. The right joystick is used to execute the fol-
lowing actions:

Axis / Action Right joystick

Direction
x direction -x • Push to the left. -x +x
The quill moves to the
left.
+x • Push to the right.
The quill moves to the
right.
y direction -y • Push to the rear. -y
The bridge moves
away from the opera-
tor.
+y • Pull to the front.
The bridge moves
towards the operator.
+y

NOTE You may reverse the travel direction of the joysticks. This is advisable
when operating the control console and performing probing from
behind the CMM.
You can reverse the travel direction by pressing a button on the con-
trol console ➤ Operating instructions for the control console.

Left joystick
z direction and direc- The left joystick is used to move the quill in the z direction.
tion of rotation of the
rotary table (option)

Direction Action Left joystick

z direction -z • Push to the rear. -z
The quill moves
downwards.

+z • Pull to the front.

The quill moves
upwards.
+z

61211-1020202 CenterMax Operating Instructions 2-11

Description of the CMM

Direction Action Left joystick

Direction of • Push to the left.
rotation of The rotary table turns
the rotary clockwise.
table
(option) • Push to the right.
The rotary table turns
counterclockwise.

NOTE If the joysticks are not activated within a certain period of time, they
will be blocked. The blocking must be cancelled before it is possible to
carry out travel movements by means of the joystick ➤ Operating
instructions for the control panel.

Calibration standard
A high-precision sphere is used as the calibration standard. The sphere
is made of a ceramic material and has a diameter of 30mm.
The calibration standard shown is included in the scope of delivery.
The calibration standard has a magnetic stand.

1 Calibration sphere
2 Rotary switch for activating the magnet
3 Magnetic stand

NOTE A metal plate is required for mounting the calibration standard on the
measuring table. This plate is delivered with the calibration standard.
For more information see ➤“Mounting the calibration standard on
the measuring table” on page 7-18.

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 Components and their functions

Options
The following special equipment is available for CenterMax:
– Loading device
– Illuminating device.

61211-1020202 CenterMax Operating Instructions 2-13

 Description of the CMM

Probe system

Probe system types

The CenterMax is equipped with the VAST probe system.

VAST
Application Universal
Measuring principle measuring
Further information ➤ page 2-15

Components of a probe system

The probe system comprises:

VAST
Probe head ×
Adapter plate ×
Probe stylus ×

Functions of the components

Probing The probe is used for probing the workpiece. One or more probes are
mounted on the adapter plate. The adapter plate and the probe form
a single unit.
Holding + securing The adapter plate is used to hold one or more probes and fasten
them to the probe head. Proper fastening is ensured by means of a
three-point bearing. The adapter plate is held by a magnet integrated
in the adapter plate receptacle of the probe head.
A pin located on the adapter plate receptacle is mated to a recess on
the edge of the adapter plate. The adapter plate must be inserted in
the adapter plate receptacle so that the pin fits into this recess.

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 Probe system

Registration + transmis- The probe head holds the adapter plate and the mounted probes.
sion Furthermore, the probe head registers the deflection of the adapter
plate and the probe during probing. A signal is sent to the computer
after each deflection.

Standard version of the probe system

The probe system is delivered with different components. The stan-
dard equipment comprises:

VAST
Probe head VAST
Master probe 1
Adapter plate 1
Probe rack
one rail eightfoldb
Adapter platea for 2
probe rack
a The adapter plate is identical with the adapter plate for the master probe.
b
Number of holders

NOTE The probe system can be extended.

VAST probe system

Application
Universal The VAST probe system can be used universally. Measurements per-
formed with this system provide information on the dimensions,
position and form of a workpiece.
Special applications:
– In case of adverse ambient conditions: e.g. vibrations (floor vibra-
tions and sound).
– For measuring many measuring points – multipoint measurement,
scanning.
– If high accuracy is required.
– If long, heavy probes are used.
Special probes In addition to conventional probes, a temperature-sensing probe may
be used. The temperature-sensing probe is used to measure the work-
piece temperature.

61211-1020202 CenterMax Operating Instructions 2-15

Description of the CMM

Components

1
2

A VAST probe head

B Probe – adapter plate and probe configuration
a
1 Adapter plate receptacle
2 Pin for positioning the probe.

limiting values
The limiting values for weight, length and torque of a probe must be
considered when assembling or mounting the probe.
Probe weight
600g The adapter plate receptacle may only be loaded with a maximum
weight of 600g.
0 450mm Probe length
The length of the probe head including extension must not exceed
450mm.

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 Probe system

Torque
The maximum torque of the probe is 0.1Nm.

! Important!
The weight of all components and the length of the probe styli, exten-
sions and joining elements must be considered when assembling
probes.
• Observe also the weights indicated for the individual probes, join-
ing elements and the adapter plate when assembling probes.
• Observe the lengths indicated for the probes, extensions and other
joining elements when assembling probes.

Temperature-sensing probe
Application
The temperature-sensing probe is used to measure the the tempera-
ture of the workpiece surface and the surrounding air. Both measure-
ments can also be carried out via a CNC program. Thus, temperature
monitoring is possible throughout the entire measurement.

NOTE The VAST probe system is required for the operation of a tempera-
ture-sensing probe.

For more information see ➤“Notes on temperature measurement” on

page 7-9 and ➤“Possibilities” on page 7-10.

61211-1020202 CenterMax Operating Instructions 2-17

Description of the CMM

Design

A Adapter plate
B RST temperature-sensing probe
C Temperature sensor

1 Connector
2 Knurled ring with internal thread.

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 Probe

Probe

Probe components
The probe consists of
– adapter plate
– one or more styli
– joining elements.
Probe configuration A distinction is made between probe configuration and probe combi-
nation. The probe configuration may consist of one or more styli. Sev-
eral styli may form a probe combination.

1 Probe combinations
2 Probe configuration

NOTE It is basically possible to create a probe configuration with several

probe combinations. However, certain assembly criteria must be
observed in order to ensure exact measurement ➤“Criteria and limit-
ing values for assembling probes” on page 6-13.

Design and function

Adapter plate
VAST The VAST adapter plate has the following functions; it must ...
– hold the probes
– fit into the adapter plate receptacle of the probe head
– enable probe change via a probe rack.

61211-1020202 CenterMax Operating Instructions 2-19

 Description of the CMM

The adapter plate is inserted in the probe head and held by magnetic
force. The groove in the adapter plate allows correct positioning. The
pin in the adapter plate receptacle of the probe head must engage in
this groove.
The VAST adapter plate is equipped with a probe mounting cube with
five threaded holes used for mounting probe components. The size of
the connection thread is M5.

A
1

A VAST adapter plate

1 Anchor plate
2 Groove for pin in the adapter plate receptacle of the probe head; the pin
allows correct positioning of the adapter plate.
3 M5 threaded hole for probe components, e.g. styli.

Joining elements
The probe kits for the probe systems contain probes or styli of differ-
ent sizes and components used to create probe configurations, e.g.
extensions.

Probes
Shaft + probe element A probe or stylus consists of a shaft and a probe element or stylus tip.
Shafts differ with regard to size and material. Furthermore, probe ele-
ments differ with regard to form ➤ page 2-21.

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 Probe

Probe elements
Probe elements may have various forms. Examples of probe elements:

1 2 3 4

1 Sphere
2 Cylinder
3 Cone
4 Disc

Application of the probe elements

Sphere The sphere is the standard probe element suitable for most measuring
jobs.

Cylinder Cylinders are preferably used for probing thin sheet-metal parts and
narrow workpiece edges.

Cone Cones are required for two applications: For ...

– self-centering probing

61211-1020202 CenterMax Operating Instructions 2-21

 Description of the CMM

– High-precision probing of specified positions.

Disc A disc is used for probing deep grooves and large holes. For large
holes, a disc offers the advantage of shorter travel paths as compared
with the sphere.

Principles for assembly

There are two ways to assemble a probe:
– Screwing technique
– Clamping technique
Preference should be given to the screwing technique.
Probes may be assembled individually. Probe kits with different com-
ponents are available.

! Important!
The limiting values for probes must be observed when assembling
probes.

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 Probe

Screwing technique
The probe components have threads. In this way the components can
be screwed together. Depending on the probe system, different
thread sizes are used: M2, M3 and M5.
– M5: VAST

Probe kits
There are different probe kits, e.g. for small and large workpieces, for
each probe system.

Probe kit Order no. Use

MPH, small 600891-9021 for VAST; small work-
pieces
MPH, large 600891-9031 for VAST; large work-
pieces

Technical data of probe components

The probe components differ with regard to material and geometry,
e.g. length and diameter of the probe element. The probe weight var-
ies accordingly.
The following table shows the technical data of some available
probes. This data shows the influence of the material and the geo-
metric sizes (e.g. length of the probe) on the probe weight. A table
with the technical data of other probe components is included with
the probe kits.

Extract from the technical data of probes

d L D ML dS Weight
[mm] [g]
Hard metal
3 25 11 15 2 4
3 33,5 11 23.5 2 4
5 50 11 40 3.5 9
8 63.5 11 50.5 6 25
8 114.5 19 92.5 6 59
9 64.5 19 42.5 6 38
10 65.5 11 52.5 6 27
Ceramic materiala
5 53 11 43 3.5 5

61211-1020202 CenterMax Operating Instructions 2-23

 Description of the CMM

Extract from the technical data of probes

d L D ML dS Weight
[mm] [g]
8 63.5 11 50.5 6 8
8 114.5 19 101.5 6 38
9 64,5 19 42.5 6 34
10 65.5 11 52.5 6 9
a
The probe shaft is made of ceramic material.

Clamping technique
Laterally oriented styli are inserted in grooved discs and clamped by
the vertically oriented stylus. The end stylus is screwed into the probe
extension or directly into the adapter plate. In this way the laterally
oriented styli are clamped.
The probe components for the clamping technique and assembly
instructions are included in the probe kit.
Advantages and disad- Advantages:
vantages of the clamp-
– high flexibility
ing technique
– low weight.
Disadvantages:
– high measuring inaccuracy caused by poorly definable clamping
joints.
– with VAST: loss of rigidity at each joint.

Storage of probes
Once the probe has been assembled, it can be used as long as
required. It does not need to be disassembled. Careful handling is
necessary. This applies particularly to the adapter plate and probe ele-
ments.
Probe protection The probe must be protected against the following influences:
– Force of impact and other external mechanical infuences
– Dust and dirt.
A probe rack is recommended for storage if you measure every day
with the CMM. When no measurements are carried out with the
CMM over a longer period, the probes should be stored in a place
protected against environmental influences:

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 Probe

Separate packing materials

e.g. box made of cardboard, styrofoam, wood
• When using a metal box, wrap the probe in a cloth.
This is necessary to protect the adapter plate and probe ele-
ments against being scratched.
Drawer
• Wrap the probe in a cloth or lay it on a soft support.
This is necessary to protect the adapter plate and probe ele-
ments against being scratched.
Special probe cabinet
The probes are inserted in holders. The probe cabinet is available
from ZEISS.

61211-1020202 CenterMax Operating Instructions 2-25

 Description of the CMM

Probe rack

Components of the probe rack

Probe racks supplied for retrofitting purposes are delivered unassem-
bled.
Scope of delivery:
– Profile rail for fastening the holders.
– Holders (storage positions):
8 holders belong to a probe rack.
The holders are preassembled.
– Screws and mounting aids.
Probe system order Two probe racks are available for CenterMax. One rack is included in
numbers the standard version and the other rack can be ordered:

Order no.
1038-094 Included in the CenterMax standard
version
1038-093 Option

NOTE The probe rack with the order no. 1038-093 is mounted at the drive
end. However, the measuring range in the x direction is reduced.

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 Chapter

3 Technical data
.................................................................................................................................
The following text provides technical data on the CMM and the probe
system.
CMM: Data referring to dimensions, measuring range, weight, noise
level, parameters, environmental conditions, requirements for the
electric power supply and compressed-air supply.
Probe system: Data referring to several probe systems, e.g. limiting
values and environmental conditions.

This chapter contains:

Coordinate measuring machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Probe system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

61211-1020202 CenterMax Operating Instructions 3- 1

Technical data

Coordinate measuring machine

NOTE The table below lists a selection of technical data. For more data,
please refer to the document "Installation Instructions".

General data

CenterMax 11/12/7
Dimensions
Width [mm] 2090
Length [mm] 2126
Heighta [mm] 3000
Measuring range
x [mm] 1100
y [mm] 1200
z [mm] 700
Weight
CMM [kg] 6000
Workpiece [kg] 1000
Noise level of the CMM [dBA] <70
a An additional distance is required for mounting work: min. 200mm.

CMM parameters

Category Characteristic
value
Overvoltage category III
Pollution degree 2
Protection class 1

3-2 61211-1020202 CenterMax Operating Instructions

 Coordinate measuring machine

Connection data
Electric data

Line voltage 100, 110, 115, 120, 125, 230,

240 VAC (±10%)
Type of current 1/N/PE
Frequency 50 to 60Hz (±3.5%)
Power consumption max. 2500VA
Fuse
for 230V or 240V C 25A
for 100V or 125V 25A

Compressed air
Certain requirements have to be met before connecting the com-
pressed air in order not to impair the function of the CMM.

Requirements
Pressure 6 - 10bar
Degree of purity 99%; without solid particles, gas-
eous proportions of oil and water
Air consumption max. 20l/min with 5bar

Travel speed

Creep speed: SLOW function

0 to 5 mm/s
Setup mode: MAN operating mode
0 to 70mm/s
Series measuring operation: AUTO operating mode
Axis max. 300mm/s
Vector max. 425mm/s (or 520mm/s)

61211-1020202 CenterMax Operating Instructions 3-3

Technical data

Environmental conditions
The following conditions must be fulfilled to guarantee perfect opera-
tion of the coordinate measuring machine.

Ambient temperature for +5°C to +40°C

storage
Ambient temperature for 15…35°C
operational readiness
Ambient temperature for 15…35°C
measuring operation
Relative humidity 40% to 70%

3-4 61211-1020202 CenterMax Operating Instructions

 Probe system

Probe system

VAST probe head

CMM dimensions
Length 91mm
Width 91mm
Height 200mm
Probing directions 6; ±x, ±y, ±z
Measuring force 0.05 to 1N / continuous
Diameter of adapter plate 69mm
Probe head deflection max. ±5mm
Probe weight, max. 600g / incl. adapter plate
Probe length, max. 450mm / stylus + extension
Repeatability following probe <1µm / with 200mm probe
change length

Environmental conditions

Ambient temperature for opera- +5°C to +40°C

tional readiness

61211-1020202 CenterMax Operating Instructions 3-5

Technical data

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 Chapter

4 Transport and installation

.................................................................................................................................
Do you want to install the CMM at another location or install an addi-
tional CMM? In either case, this chapter provides the basic informa-
tion you will need on the required condition of the installation site
and transport considerations.

This chapter contains:

Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

61211-1020202 CenterMax Operating Instructions 4- 1

 Transport and installation

Transport
Separate document
NOTE You received the document "Installation Instructions“ prior to the
delivery of the coordinate measuring machine. This document informs
you about all measures to be taken for transport and installation. In
the following, we will refer to some of the most important points con-
tained in this document.

To be observed on delivery
The coordinate measuring machine is delivered disassembled on
transport pallets. The individual parts are wrapped in insulated pack-
aging. For overseas transport, the individual parts are packed in ship-
ping containers.
Requirements regard- A fork-lift truck with sufficient carrying force has to be used for trans-
ing the fork-lift truck port. The fork-lift truck must be suitable for the weight of the individ-
ual transport containers. In order to avoid tilting of the load, the forks
must be completely underneath the transport pallets or shipping con-
tainers and the fork width must be variable. You will find the weight
and dimensions of the individual parts in the document "Installation
Instructions“.

! Important!
The packing material or the transport containers must not be dam-
aged. The packing material may only be removed at the installation
site by a ZEISS service engineer.

Ambient temperature The transport pallets and shipping containers must be stored in a cov-
+5°C to +40°C ered area until the machine is installed. The ambient temperature in
the storage area must be within +5°C to +40°C.

Transport conditions
The transport route from the storage area to the installation site must
be selected carefully. It might be necessary to prepare it in order for it
to meet the requirements.
Prerequisites for trans- Observe the following regarding transport:
port
– Weight: Is the bearing capacity of the floor along the routes suit-
able for the weight of the transport containers and the fork-lift
truck?

4-2 61211-1020202 CenterMax Operating Instructions

 Transport

– Dimensions: Are the height and width of the doorways and

routes sufficient for the transport containers and the fork-lift
truck?
– Fork-lift truck: Does the fork-lift truck comply with the
requirements? ➤ page 4-2.

61211-1020202 CenterMax Operating Instructions 4-3

Transport and installation

Installation
Separate document
NOTE You received the document "Installation Instructions“ prior to the
delivery of the coordinate measuring machine. This document informs
you about all measures to be taken for transport and installation. In
the following, we will refer to some of the most important points con-
tained in this document.

Selecting the installation site

The place of installation must meet the following requirements. The
following questions must be clarified:
– Is the room height sufficient?
– Is enough space available?
– Is the floor suitable for the weight of the CMM and the fork-lift
truck?
– How strong are the vibrations at the installation site?
Disturbing vibrations may for example be caused by machines in
adjacent rooms or buildings.
– Does the installation site comply with all of the environmental con-
ditions required for perfect operation of the CMM?
– Is the installation site free from coarse dirt particles, such as casting
sand and metal chips?
– Have the requirements for the compressed air supply been met?
For more information, please refer to the document "Installation
Instructions“.

Carrying out vibration analysis

A vibration analysis must be carried out in any case. The result of the
analysis must be made available to ZEISS for planning purposes. An
additional foundation may be necessary.
ZEISS can carry out a vibration analysis for you. You can order it under
the order no. 600008-0276.
• Dial +49.(0)7364.20.3471 if you want ZEISS to carry out a vibra-
tion analysis.

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 Installation

Prerequisites for installation

The following preparations must be made prior to installation of the
CMM by ZEISS service engineers:
– Provision of steel plates
– Installation of power supply
– Installation of compressed-air supply
– Adaptation of CMM to room temperature
You will find the data required for preparation in the document
"Installation Instructions“.

Adaptation to room temperature

During start-up of the CMM, the temperature of all CMM parts must
be stabilized at a minimum temperature of 15°C.
At least two days in • Store all parts of the CMM in a place having an ambient tempera-
advance ture of at least 15°C at least two days prior to installation.

61211-1020202 CenterMax Operating Instructions 4-5

Transport and installation

4-6 61211-1020202 CenterMax Operating Instructions

 Chapter

5 Preparations for start-up

.................................................................................................................................
The preparations include many activities not performed daily or
weekly. One exception to this is the visual check. The visual check
should be part of your routine daily measuring operation.
It is possible that the probe rack must be removed, replaced or modi-
fied. In this case, please refer to the corresponding information in this
chapter.

This chapter contains:

Before you start! . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Mounting the probe rack (option) . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Visual check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Start-up preparation checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

61211-1020202 CenterMax Operating Instructions 5- 1

 Preparations for start-up

Before you start!

Initial start-up by a ser- Initial start-up is carried out by a ZEISS service engineer. However, you
vice engineer must familiarize yourself with the preparations required for start-up
and know as well as observe the corresponding safety instructions.
• Please read the information provided in the document "General
safety instructions“.

5-2 61211-1020202 CenterMax Operating Instructions

 Connections

Connections

Connecting the power supply

The electrical power supply must be located close to the installation
site to enable electrical connection of the CMM. This must be done
before installing the CMM.
• Observe the electrical data provided in the chapter "Technical
data“ ➤ page 3-3.

NOTE For more information on the electric power supply, please refer to the
document entitled "Installation Instructions“.

The CMM is fitted with a power plug.

• Connect the power plug to the electric outlet provided.
By ZEISS service engi- Connection of the power supply is part of the CMM installation pro-
neers cedure. It may be carried out only by ZEISS service engineers.
The CMM power supply is provided by the control cabinet. A
permanent connection must be provided for the control cabinet
power supply.
• Connect the control cabinet power cord to the power supply line.
• Protect this connection with a cutout switch.

1 Power supply (permanent connection)

2 Control cabinet.

Connecting the compressed-air supply

The building compressed-air supply must be close to the CMM in
order to be able to connect it to the CMM supply line. This must be
done before installing the CMM.

61211-1020202 CenterMax Operating Instructions 5-3

Preparations for start-up

• Observe the requirements regarding the compressed-air supply in

the chapter "Technical data“ ➤ page 3-3.

NOTE For more information on the connection of the compressed-air supply,

please refer to the document "Installation Instructions“.

Requirements for compressed-air supply

Pressure in the supply line:
– Required minimum pressure: 6bar
– Permissible maximum pressure: 10bar.
Quality of the compressed air:
– Degree of purity 99%
– Free from solid particles
– Free from water – in liquid or gaseous form
– Free from oil – in liquid or gaseous form.

Compressed-air connection to the CMM

The compressed-air connection is located on the right-hand side of
the CMM behind the doors.

2
3

1 CMM (top plan view)

2 Compressed-air connection of the CMM on the right-hand side
➤ page 5-5
3 Compressed-air supply at the installation site.

The connection for the dampers of the CenterMax is located behind

the left door. The connections for the axes and the special equipment
are located behind the middle door.

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 Connections

Pressure gages
There are five pressure gages for five devices. These devices and their
required pressures are listed below:

1 2 3 4 5 6 7 8

1 Compressed-air connection to the CMM

2 Air filters; coarse and fine
3 to 7: Compressed-air gages and connectors for five
different devices
8 Pressure controller

Indicated pressures:
Device No. Required pressurea

y drive 3 2bar
Weight balancer 4 5bar
Option: 5 5bar
Option: e.g. loading device 6 5bar
Air bearings in the CMM 7 5bar
a
The values set by the ZEISS service engineer may slightly deviate from the indicated
values.

! Important!
The valves of pressure gages which are not connected must be closed.
The connection shank should be covered by a cap.

61211-1020202 CenterMax Operating Instructions 5-5

 Preparations for start-up

Compressed-air valve
with pressure gage

1 2 1 3

1 Control knob for pressure adjustment – locked; only for service engineers
2 Air pressure gage
3 Connection of the compressed-air line.

Adjusting the pressure

! Important!
The pressure is adjusted individually by a ZEISS service engineer during
the initial start-up. After this, the pressure must not be readjusted.
If the required pressure is not indicated, proceed as follows:
• Identify the cause of the decrease or increase of pressure ➤“Faults
during the measuring run” on page 8-3.
• Call a ZEISS service engineer if you cannot find or eliminate the
cause.

Filter units
Several filter combinations are offered for the CMM. The CMM fea-
tures a combination of a fine filter and an extra fine filter as standard
equipment. If the required compressed air quality cannot be main-
tained, additional filters can be installed later. The possible versions
are specified below::

Combination
1 Fine and extra fine Standard
filter

5-6 61211-1020202 CenterMax Operating Instructions

 Connections

Combination
2 Combination 1 + Optional
membrane dryer
for filtering out
moisture

3 Combination 2 + Optional
combination 1

61211-1020202 CenterMax Operating Instructions 5-7

 Preparations for start-up

Mounting the probe rack (option)

The probe rack is mounted by ZEISS service engineers during the ini-
tial start-up. If the probe rack is to be installed in another location or a
second probe rack is to be installed, you have to observe certain
points.

Prerequisites for the probe rack

What are the requirements for the probe rack?
The requirements must be known before installing a probe rack.
– When using probes with long horizontal styli, it may prove impossi-
ble to use all holders.
Possibly two probe The requirements of the measuring job influence the number of num-
racks ber of holders which can be used and the height of the probe rack. It
may be necessary to install two probe racks.
Clarify questions in The following questions must be clarified before installing the probe
advance rack:
– Number of holders used for the measurement?
Space required by the widest probe?
– Number of probes required for workpiece measurement?

How to install the probe rack

The profile rail is attached to the guideway side. Two threaded holes
are provided for this purpose. Threaded bolts are then screwed into
the threaded holes and secured with a lock nut ➤“Installing a probe
rack” on page 5-12.

Installation procedure
The holders are preassembled on the profile rail. The profile rail can be
attached directly to the guideway side.

! Important!
Exact probe rack alignment is necessary to enable trouble-free probe
change. The deviation must not exceed 0.1mm over the total length
of the profile rail.
• Align the probe rack so that the deviation of the profile rail does
not exceed 0.1mm.

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 Mounting the probe rack (option)

Attaching the holders to the profile rail

1
2

1 Holder (storage position)

2 Profile rail
3 Guideway for holder – at the top or at the bottom.

The holders are fastened to the profile rail using Allen screws. Two
screws are required for VAST holders.

61211-1020202 CenterMax Operating Instructions 5-9

Preparations for start-up

The holders are generally preassembled. The procedure for moving,

removing or adding a holder is described in the following.

A Cap
B Holder for probe system VAST;
a: top plan view; b: front view

1 Mounting aid
2 Screw; M6×16
3 Cover of a holder
4 Brush for cleaning the adapter plate

• Remove the cap (A).

• Move the cover of the holder in the direction of the arrow (3) and
loosen the two hexagon-socket screws (2) slightly; do not remove
them completely from the mounting aid.
• Slide the holder on the profile rail.
The mounting aid must be guided in the profile rail.
• Proceed in the same way for sliding further holders on the profile
rail.
The permissible number depends on the probe system and the pro-
file rail length.
• Reattach the cap to the profile rail.

5-10 61211-1020202 CenterMax Operating Instructions

 Mounting the probe rack (option)

• Distribute the holders evenly on the profile rail and tighten the
screws (2).

61211-1020202 CenterMax Operating Instructions 5-11

Preparations for start-up

Installing a probe rack

In the case of the CenterMax, two different positions on the guide-
way side can be used for installing the profile rail. If you only have one
profile rail, you must mount it at the lower position first. This is neces-
sary for reasons of safety.

2
3

A CenterMax: top plan view.

B Guide side

1 Holders (storage positions)

2 Mounting option for upper position
3 Mounting the profile rail in the lower position

5-12 61211-1020202 CenterMax Operating Instructions

 Mounting the probe rack (option)

1 Threaded holes provided on the guide side

2 Threaded bolts
3 Fastening of the profile rail

Depending on whether the profile rail is to be mounted at the top or

at the bottom, threaded bolts of varying length are required.
• If you mount the profile rail at the top, you have to use long
threaded bolts.
• If you mount the profile rail at the bottom, you have to use short
threaded bolts.
Three threaded bolts are required per profile rail. Two threaded bolts
are screwed into the threaded holes at the front and one threaded
bolt is screwed into the threaded hole at the rear.

NOTE If you require more holders than can be mounted on two profile rails,
it is possible to mount a third profile rail on the drive side. However,
this will decrease the effective measuring range.

61211-1020202 CenterMax Operating Instructions 5-13

 Preparations for start-up

Visual check
NOTE The visual check must be part of the routine work to be carried out
during the daily measuring operation.

Housing covers
The CMM may only be operated if all CMM housing covers are
mounted.
• Mount all housing covers before taking further measures.

Cable for power supply

The cable must be in perfect condition. It must not be ...
– ...bent or
– ...damaged.
• Make sure that the cable is in perfect condition.
• Ensure that no heavy objects are lying on the cable.

Compressed-air line
The line and connections must be in perfect condition. The line must
not be ...
– ...bent or
– ...damaged.
• Make sure that the line is in perfect condition.
• Make sure that ...
– no heavy objects are lying on the line.
– the line is connected correctly to the supply line and the CMM.

Cables
Cable duct The cables from the control cabinet to the CMM are installed in a
cable duct.
• Make sure that the cable duct is not damaged.

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 Start-up preparation checklist

Start-up preparation checklist

Housing covers
– Are all CMM housing covers mounted?

Power supply
– Is the power supply connected?
– Are the cables in perfect condition?

Compressed-air supply
– Is the compressed-air supply connected?
– Does the compressed-air supply have sufficient pressure?
– Is the required pressure indicated?

Probe rack (optional)

– Have all requirements regarding the probe rack been met?
– Has the probe rack been installed correctly?
– Is probe change possible without collision?

61211-1020202 CenterMax Operating Instructions 5-15

Preparations for start-up

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 Chapter

6 Start-up
.................................................................................................................................
This chapter describes the work to be carried out regularly.
You want to clamp a new workpiece on the measuring table or pre-
pare the probe system for the measuring run? Or you want to switch
the CMM on again after it has been put out of operation? The follow-
ing pages provide the corresponding information.
Furthermore, the procedure for checking the protective circuit for the
drives is described.

This chapter contains:

Clamping the workpiece on the measuring table . . . . . . . . . . . . . . . 2

Switching the CMM on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Checking the protective circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Mounting / changing the probe head. . . . . . . . . . . . . . . . . . . . . . . 11
Probe assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Inserting / removing the probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Start-up checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

61211-1020202 CenterMax Operating Instructions 6- 1

Start-up

Clamping the workpiece on the measuring

table

Safety measures

! Danger!
You are exposed to the danger area of the CMM when working on
the measuring table. Certain safety measures have to be observed to
avoid injuries.
• Switch off the drives to prevent unintentional travel movements.
• Activate the "crane interlock“ when using lifting equipment to
place the workpiece on the measuring table.
For more information see ➤ Operating instructions for the measur-
ing software.

! Danger!
There must not be any grease film on the measuring table. Work-
pieces may slide and fall off of the measuring table, thus endangering
personnel. Make sure that the measuring table is free of lubricants
before placing a workpiece on top of it.
• Remove any greasy or oily substances from the measuring table.

! Important!
The workpieces must have full contact with the measuring table. Any
hard particles lying underneath the workpiece may lead to inaccurate
measurements. Furthermore, the surface of the measuring table and
the workpiece may be damaged.
• Clean the measuring table before placing a workpiece on the mea-
suring table.

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 Clamping the workpiece on the measuring table

! Important!
Certain safety measures have to be observed to avoid damage to the
CMM and the measuring table.
• Observe the permissible workpiece weight ➤ page 3-2.
• Lower the workpiece onto the measuring table carefully. Lower
heavy workpieces at a maximum speed of 2mm/s.
The CMM may be damaged if the workpiece is set down hard.
• Make sure that the workpiece or lifting device does not strike the
bridge, quill, or drive side of the CMM.
Even light jolts may affect the functioning of the CMM.
• Place the workpiece upright on the measuring table.
• Do not slide the workpiece on the measuring table.
The surface of the table could be scratched when sliding the work-
piece, thus impairing the measuring accuracy of the CMM.

Clamping the workpiece

! Important!
The maximum permissible torque for the threaded holes in the mea-
suring table is 40Nm.
• Tighten the screws to a maximum torque of 40Nm.

NOTE Workpieces made of soft materials may be deformed by chucks, thus

falsifying the results of the measurement.
• If necessary, use special chucks to avoid deforming of the work-
pieces.

Chucks
Chucks are screwed onto the measuring table using the threaded
(M12) holes.
Metal, plastic, wood Chucks are generally made of metallic materials. Chucks made of
plastic or wood may also be used if necessary.

Workpiece positioning
Position the workpiece so that all required measurements can be car-
ried out without changing the workpiece position.

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 Start-up

Measuring operation When using a probe rack, position the workpiece and probe rack so
without collision that measurements and probe change can be carried out without col-
lision.
• Arrange the workpiece and probe rack so that no collisions can
occur during the measuring run.
For more information on installing a probe rack,, please refer to .

Lowering the workpiece onto the measuring

table
Workpieces can be lowered onto the measuring table either manually
or by means of a lifting equipment.
Crane lock Activate the "crane interlock“ when using lifting equipment to lower
workpieces onto the measuring table. The crane lock is an option.
This option requires additional hardware and software. For more
information, please refer to the operating instructions for the measur-
ing software.

Heavy workpieces
Heavy workpieces have a hard impact if lowered into the measuring
table too quickly.
• Lower heavy workpieces at a maximum speed of 2mm/s.
Elastic supports • First place the workpiece on elastic supports.
• Then replace the elastic elements with rigid supports.

NOTE Metal blocks clamped by clamping devices can be used as rigid sup-
ports. Screw fasteners can be used alternatively. These fasteners can
be screwed into the threaded holes in the measuring table.

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 Switching the CMM on

Switching the CMM on

Safety measures

! Danger!
A visual check must be carried out before switching the CMM on. The
CMM may be switched on only if it is in perfect condition.
• Make sure that the CMM is in perfect condition ➤“Visual check”
on page 5-14.

Switch-on sequence
Proceed as follows when switching the control on:
1 Connect power supply; switch power supply on by means of the
main switch
2 Switch the control on.
3 Switch the drives on.
4 Select the operating mode
5 Switch the computer on and start the measuring software.

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 Start-up

For more information, please see the following pages.

SCHNELLSTOP BETRIEBSARTEN ANTRIEBE NETZ/STEUERUNG HAUPTSCHALTER

quickstop mode - switch drives mains / control main - switch

MAN START AUS

start off
0
AUTO EIN
on

0125853 h

6 4 2 1
5 3

1 Main switch for power supply

2 Rotary switch for the control
3 Indicator lamp for control; green
4 Rotary switch for drives
5 Indicator lamp for drives; green
6 Key-operated switch for operating modes

NOTE For more information on the operating elements, please refer to the
chapter ➤“Operating elements of the control cabinet” on page 2-8.

Connecting the power supply

• Turn the main switch (1) clockwise to position "1“.
The power supply for all electronic components of the CMM is
switched on.

Switching the control on

• Turn the rotary switch (2) to the "ON" position.
The indicator lamp above the switch lights up. The control is
switched on.
Wait for 30s • Wait for approx. 30s before switching the drives on.
This is necessary since the internal computer requires a certain
amount of time for booting. The booting process must be termi-
nated before the drives are switched on. The LEDs on the control
panel flash during the booting process.

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 Switching the CMM on

Switching the drives on

• Turn the rotary switch (4) clockwise approx. 90° and hold it there
until the indicator lamp above it lights up.
As soon as the indicator lamp above the switch lights up, the
drives are switched on. The rotary switch does not engage. snaps
back to its home position as soon as it is released.

Selecting the operating mode

It is also possible to set the operating mode later.
• Turn the key-operated switch (6) to the required position.
MAN: Manual mode – Set-up mode. The travel speed is limited in
all three axes.
You must set this operating mode for …:
– Joystick-controlled probing
– Programming CNC runs
– Testing CNC programs.

AUTO: Automatic mode – series measurement mode. Travel at

maximum speed in all axes.
You must set this operating mode for …:
– Workpiece measurement by means of a CNC program.

! Danger!
When starting a CNC program, make sure that no one is in the dan-
ger area of the CMM. The operating mode setting (MAN or AUTO) is
irrelevant.
• Check to make sure that no one is in the danger area of the CMM.

! Important!
The AUTO mode may only be set if the CNC program was tested in
the manual mode beforehand. This prevents collisions at high travel
speeds in the automatic mode.

NOTE When starting a CNC program, the key should be removed and stored
in a safe place to prevent the setting from being changed accidentally.

Switching the computer on

• Switch the computer on and other peripheral devices, e.g. the
printer.
• Boot the computer; start the operating system.
• Start the measuring software.

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 Start-up

Checking the protective circuit

The CMM is equipped with a protective circuit which monitors drive-
forces during bridge positioning movements in the x and y axes. The
shearing force monitoring is effective in all operating modes.

Function of the protective circuit

Drives must cut out If the traveling motion is obstructed by a collision in the x or y axis and
automatically. the shearing force therefore exceeds a value of approx. 150N, the
drives must cut off automatically.

! Danger!
In order to ensure the safety of the CMM during measurement, the
function of the protective circuit must be checked regularly.
• Check the protective circuit on a monthly basis.

Check
When performing the check, you must proceed as follows:

x axis
• Move the crossbeam forward just far enough so that you can
grasp the quill housing with one hand.

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 Checking the protective circuit

• Move the probe (head) in the x axis at constant speed.

• Try to stop the travel motion (vx) by pressing one hand against
the quill housing at the marked position (F).
This increases the shearing force of the drives. Once the shearing
force has exceeded a certain value, all drives will be deactivated.

vx F

vx: Speed of quill in x axis

F: Force exerted against the quill housing by pressing it with one hand.

! Important!
You may press only against the quill housing.
• Do not press against the quill or against the probe head.
The probe head and quill could otherwise be damaged.

Check by a ZEISS service Under normal circumstances, the force of your hand should suffice to
engineer stop probe movement. If the movement can not be stopped in this
way, the protective circuit must be checked immediately by a ZEISS
service engineer.
• Call your service engineer and arrange for him to check the protec-
tive circuit.

! Danger!
If the protective circuit is not functioning properly, the CMM must be
taken out of operation until the protective circuit has been checked by
a ZEISS service engineer.

Reactivating the drives If you can stop the travel motions, you must reactivate the drives
➤ Operational controls.

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Start-up

y axis
• Move the control panel to the drive side for y-axis travel.
The drive side is located on the right side of the CMM.

vy F

vy: Quill speed in y axis

F: Force which must be exerted manually against the crossbeam on the
drive side.

• Perform crossbeam travel in the y axis at constant speed.

• While the crossbeam is traveling, try to stop its movement by
pressing against the crossbeam with one hand.

! Important!
You may press against the crossbeam only on the drive side.
• Do not press against the probe head and quill or against the cross-
beam on the guideway side.
The probe head, quill and crossbeam could be damaged.

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 Mounting / changing the probe head

Mounting / changing the probe head

! Important!
With the CenterMax, the probe head must not be changed by the
operator. The probe head may be changed only by a ZEISS service
engineer.

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Start-up

Probe assembly

Screwing technique or clamping technique?

Although the probe can be assembled by clamping its parts together,
it is preferable to use the screwing technique.
Advantages of screwing technique:
– Easy assembly
– Complex probe configurations possible
– Stable design.
The following example describes how to assemble probes using the
screwing technique.
For further information please refer to the chapter ➤“Storage of
probes” on page 2-24.

Safety measures

! Important!
Probes must not be assembled on the probe head. The probe head
could thus be damaged.
• Do not attach any probe elements to the probe while it is inserted
in the adapter plate receptacle.

! Important!
Assemble the probe configuration carefully. Do not exert any force
when screwing the components together.
• Screw the components together manually. Assemble them fully.
• Use the pin included in the probe kit to tighten the components.

! Important!
Observe the limiting values regarding weight and length when assem-
bling the probe. The limiting values depend on the probe system.
• Observe the limiting values ➤“Limiting values” on page 6-14.

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 Probe assembly

Criteria and limiting values for assembling

probes
Criteria
An unfavorable probe assembly may impair the measuring accuracy.
Therefore, it is necessary to observe the following criteria for assem-
bly.
• Only use probe elements with an M5 thread.
• Stable design with as few components as possible.
• Symmetrical design with respect to weight; the center of gravity
must be located in the physical center; use counterweights if nec-
essary.
Probe extensions may be used as counterweights.

NOTE Check the balance by holding the adapter plate between two fingers
and letting it swing back and forth until it comes to a stop. The probe
must point in a vertical downward direction.

• Do not assemble probes with more than one branching.

• If possible, never use joints when assembling oblique probe config-

urations.
It is preferable to use components shaped according to your corre-
sponding requirements. You can also make such components your-
self, provided that you observe the permissible limiting values.

• Use only components that are in perfect condition.

Requirements for probe components:

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Start-up

– perfect condition
– clean
– grease-free
• Observe the limiting values; probe length and probe weight.

Limiting values
The maximum weight and length must not be exceeded in order to
ensure error-free measurement by the probe system.
The limiting values depend on the probe system used.

Maximum values VAST

Probe weight – including 600g
adapter plate

Probe length – including 450mm

extension:
L

Example
Connecting parts are usually required to assemble the required probe
configuration. It is also possible to screw the probe directly into the
adapter plate ➤ page 6-15.

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 Probe assembly

Screwing technique Example of probe assembly via the screwing technique using the
VAST adapter plate:

A B

A Probe stylus in adapter plate

B Extension in adapter plate

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 Start-up

Inserting / removing the probe

Safety measures and information

The probe is held in place by an electromagnet or solenoid. If the
measuring software initiates insertion or change of the probe, the
magnetic force is reduced. The full magnetic force becomes effective
after 20 seconds.
The measuring software is required for inserting and changing a
probe.
• Please also read the corresponding chapters in the operating
instructions for the measuring software.

! Important!
Probes must not be assembled on the probe head. The probe head
could be damaged.
• Insert only finished probes equipped with all necessary probe ele-
ments.
• Do not attach any probe elements to the probe as long as it is
inserted in the adapter plate receptacle.

! Important!
A VAST probe automatically falls off of the adapter plate receptacle
after a specified period of time.
• Hold the probe immediately after activating change in order to
avoid damage to the probe, the workpiece or the measuring table.
The period after which the probe falls off is set in the measuring soft-
ware.

Inserting the probe

The procedure for inserting a probe is basically the same for all probe
systems. This procedure must be initiated by the measuring software.
Operating instructions • Please read the corresponding chapters in the operating instruc-
for the measuring soft- tions for the measuring software.
ware
1 Initiate the procedure by means of the measuring software.
Then, insert the probe within 20 seconds. If the probe is not
inserted within this time, you have to repeat this procedure.

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 Inserting / removing the probe

2 Insert the probe in the adapter plate receptacle.

The pin must engage in the groove ➤ drawing. The probe is
attracted by the magnet. The completion of probe insertion is sig-
naled by an audible click.
Position of the pin The pin position in the adapter plate receptacle depends on the
probe system.
VAST: pin on the left side.

1 Pin in the probe head adapter plate receptacle

2 Groove in the adapter plate.

Removing the probe (manually)

The procedure for removing a probe is basically the same for all probe
systems. However, several special points must be observed. First, the
procedure must be initiated by the measuring software.
• Please read the corresponding chapters in the operating instruc-
tions for the measuring software.
1 Initiate the procedure via the measuring software.
With the VAST probe system, the delay required until the probe is
released from the adapter plate receptacle must be specified in the
measuring software.
Set the delay so that enough time always remains to grasp the
probe after initiating probe removal. This is essential to prevent
damage to probes, workpieces, or the measuring table caused by
falling probes.
2 Remove the probe.

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 Start-up

Special features of VAST: Hold the probe; it falls off automatically.

probe systems
Automatic probe change
Information on automatic probe change is provided in the chapter
➤“Automatic probe change” on page 7-30.

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 Start-up checklist

Start-up checklist
Clamping the workpiece
– Is the workpiece in the correct position? ➤ page 6-3.
– Is it possible to measure all workpiece dimensions in one cycle?
– Is measurement possible without collision? E.g. collision with the
probe rack.
– Is the workpiece clamped? ➤ page 6-3.

Switching on the CMM

– Has the CMM been switched on in the correct order? ➤ page 6-5.
– Is the power supply connected?
– Control cabinet switched on?
– Drives switched on?
– Operating mode selected?
– Computer switched on?
– Measuring software started?

Protective circuit for the driving forces

– Has the protective circuit been checked? ➤ page 6-8.

Probe assembly
– Have the criteria for probe assembly been observed? ➤ page 6-13.
– Have the limiting values for the probe been observed?
➤ page 6-14.

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Start-up

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 Chapter

7 Measuring operation
.................................................................................................................................
Connections carried out, workpiece clamped on measuring table,
probe system prepared. The preparations for the measuring run can
begin.
This chapter describes the procedure for correct measurement with
the CMM. Furthermore, the possible causes of unusual measured
results are also explained.

This chapter contains:

What you should know! . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Preparations for a measuring run . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Probing the workpiece . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Automatic probe change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Tips for effective operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Evaluating the measuring data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Terminating a measuring run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

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 Measuring operation

What you should know!

Coordinate systems
There are three coordinate axes corresponding to the travel move-
ments: x, y and z. Together these axes form a machine coordinate sys-
tem. Two additional coordinate systems are required for exact
calculation: the workpiece and control coordinate systems. The coor-
dinate axes are assigned the letters G, W and S to identify of the coor-
dinate systems:
– Machine coordinate system; xG, yG, zG
– Workpiece coordinate system; xW, yW, zW
– Control coordinate system; xS, yS, zS
For more information on the coordinate systems, please refer to the
➤ operating instructions for the measuring software.

Probing directions
Six (=6) probing direc- Workpieces can be probed from six directions, ±x, ±y, ±z. The illustra-
tions tion below shows five probing directions. The rectangular block
shown cannot be probed in the positive z direction. However, in case
the block has lateral recesses and bores, it is possible to probe in the
positive z direction by using a corresponding probe configuration.

3
4

1 Probe
2 Rectangular block (=workpiece)
3 Possible probing directions
4 Measuring table

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 What you should know!

Probing oblique work- It is also possible to probe oblique surfaces perpendicular to the prob-
piece surfaces ing surface. This is done by means of the measuring software. The
workpiece coordinate system is aligned corresponding to the work-
piece surface ➤ Operating instructions for the measuring software.

NOTE Clamp the workpiece on the measuring table before probing. Other-
wise, the workpiece may be shifted by the probing. Correct measure-
ment is not possible if the workpiece is shifted.

Types of measurement
Overview

VAST probe system

Three types of workpiece measurements are possible with the VAST
probe system:
– Single point probing
– Multipoint measurement
– Scanning
Dimensions, positions Information can be obtained on the size and position. Furthermore,
and form the workpiece form can be determined by a combination of scanning
and special software.

Single point probing

Single point probing means that only one point is probed. Then the
probe moves away from the workpiece. This procedure must be
repeated if additional points are to be probed.
Self-centering probing, e.g. grooves, small bores, is a special single
point probing application.
Complete measurement Single point probing makes it possible to measure a workpiece com-
pletely. All dimensions of the workpiece are calculated by means of
the probed single points. No information can be obtained regarding
form. For this, scanning and a special software are required.

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 Measuring operation

Probing with VAST

The probe must be moved back counter to the probing direction after
each single point probing.

Measurement in static The measuring data are not accepted immediately after probing.
status Instead, they are initially polled following a damping period of approx.
one second. I.e. the actual measurement occurs only after the
machine reaches a static state.

Multipoint measurement
Multipoint measurement is only possible with the VAST probe system.
During multipoint measurement, the probe is moved perpendicular to
the probing direction.
The probing axis runs parallel to the workpiece surface. During mea-
surement, the probe element constantly remains in contact with the
workpiece surface. The measuring force remains effective until prob-
ing is completed.

B
A C

A Lowering the probe and probing the workpiece; with the left joystick.
B - D Move the probe over the workpiece with the right joystick. The
position in the z direction remains unchanged.
D Lifting the probe.

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 What you should know!

There are two options You can influence the transfer of measured values individually. The
for transferring mea- measured value can be transferred either dynamically or statically.
sured values.
– Dynamic transfer of measured values:
The measured value is immediately transferred by pressing the
push-button of the right joystick. The probe movement is not
stopped.
– Static transfer of measured values:
Each time the CMM stops traveling a measured value is created,
but not transferred immediately. Measurement transfer occurs fol-
lowing a damping period of approx. one second.
Terminating the multi- To terminate the measurement, deflect the joystick counter to the
point measurement probing direction.

Scanning
Scanning is only possible with VAST probe system. During scanning,
the surface of a workpiece is continuously probed. The measuring
points make it possible to calculate surfaces or provide information on
the form of a surface.
No axis clamping The axes of the probe head are generally not clamped during scan-
ning. I.e. measurement takes place with freely movable axes.
The measuring software offers several scanning modes:
VAST circle scanning: for measuring shafts and bores whereby the
CMM automatically differentiates between inside and outside bores.
VAST surface scanning: for measuring surface-like workpiece areas.
VAST line scanning: for flatness measurements or acquisition of
curved shapes in predefined section planes. In this case, it is advisable
to clamp one axis.
Different measuring routines are available for each scanning mode:
Four VAST stages – VAST stage 1: exact acquisition of dimensions, position and
form.
Scanning with maximum precision for measuring dimensions, form
and position.
– VAST stage 2: rapid acquisition of dimensions, position and form.
Scanning with high dynamic for measuring dimensions, form and
position (2xV2).
– VAST stage 3: exact acquisition of dimensions and position.
Scanning with maximum precision for measuring dimensions and
position.
– VAST stage 4: rapid acquisition of the position.
Scanning with maximum dynamics for measuring the position.

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 Measuring operation

For further information, please refer to the ➤ Operating instructions

for the measuring software.

Collision protection
All probe systems provide complete collision protection for the probe
head and probe in the setup mode.

Probe system Protection

VAST probe system – Complete protection of the probe
head and adapter plate
– Complete protection of the stylus
in the setup mode

After collision
If the quill, probe head or probe collides with an obstacle and the
drives are switched off, proceed as follows:
• Eliminate the cause of the collision.
• Reactivate the drives on the control cabinet.
• Turn the rotary switch clockwise approx. 90° and hold it in this
position until the indicator lamp above lights up.
Initializing the CMM If the drives cannot be switched on, the CMM has to be reinitialized.
For more information on the initialization procedure, please refer to
the ➤ Operating instructions for the measuring software.

NOTE If the quill or the probe head collides with an obstacle, the guideway
and other components of the CMM may be damaged. In this case,
perfect measuring operation cannot guaranteed.
• If measurements are not possible after a collision, call a ZEISS ser-
vice engineer or our hotline.

NOTE After a collision, the probe must be recalibrated and the workpiece
position (w position) must be determined again.

Axis clamping with VAST probe system

With the VAST probe system, axes can be clamped or unclamped.
Clamping or unclamping can be carried out via the measuring soft-
ware and the control console.

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 What you should know!

It is possible to unclamp one, two or all three axes.

! Important!
In general, the measurement has to be carried out with the same axis
clamping as for calibration ➤“Probe calibration” on page 7-16.
Example: In case of unclamped axes, probing should be carried out
using a probe stylus. This stylus must be calibrated in the same way.
I.e.: All axes must be unclamped during the calibration of the stylus.

All axes unclamped

Vector probing Vector probing means that all three axes are freely movable. This
mode is generally set in the basic setting of the measuring software.
Vector probing ensures optimum probing results for most measuring
jobs. In the ideal case, the measuring force acts vertically on the sur-
face being probed. Furthermore, exact correction of probe bending is
ensured.

1
1
2
3

1 Freely movable axis

2 Measuring force perpendicular to workpiece
3 Workpiece

NOTE To prevent any misunderstandings: The workpiece is not probed in

two directions. Probing always takes place in one direction: x, y or z.
The probing direction depends on the alignment of the workpiece
coordinate system.

Clamped axes
You can cause the measuring force to act in a certain axis by clamping
specified axes.
Two axes are clamped when probing single points. The probe can be
moved in the axis of the probing direction.

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 Measuring operation

Self-centering probing
If the probe can be moved freely in all axes, it will be centered auto-
matically, e.g. a conical probe in a bore. A combination of one
clamped and two unclamped axes is also possible.

NOTE All axes are unclamped via the measuring software. Axis clamping
must be carried out by means of the control console.

Measuring force
With self-centering probing it may be advisable to increase the mea-
suring force or to specify the direction in which the measuring force is
to act. The direction is specified by clamping the axes in which prob-
ing should not take place.
Measuring software or The measuring software makes it possible to alter the value of the
control console measuring force and to specify the direction in which the measuring
force is to act. The direction of the measuring force can also be set via
the control console.

Examples
One axis clamped Bottom of narrow V grooves.

z 1
y
2
x
3

1 Probing in z direction; movable axis.

2 y axis is clamped; no movement possible in y axis.
3 Self-centering in x axis – to the bottom of the groove.

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 What you should know!

Three freely movable Probing of a small bore with a conical probe.

axes

z 1
y
2
x
2

1 Probing in z axis; movable axis.

2 The y and x axes are freely movable; the cone is automatically centered in
the bore.

Temperature-sensing probe
Notes on temperature measurement
– The temperature measurement should be carried out on thick-
walled workpieces.
– The workpiece surface must be clean and flat.
– The surface to be probed should be larger than the contact surface
of the temperature sensor.
– Measuring force: 1N.
– The workpiece should be probed in the axis direction of the tem-
perature-sensing probe.
The max. angle between the axis direction and the normals of the
workpiece surface must no exceed ±5°. Perfect measuring opera-
tion cannot be guaranteed with larger angles.

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Measuring operation

The temperature sensor automatically adapts to the inclination of the

workpiece surface.

A
1

B 3

A Approaching an oblique workpiece surface

B Probing: Deflection at two points

1 Temperature sensor
2 Workpiece
3 Deflection of the probe head
4 Maximum deflection of temperature sensor: ±5°.

Possibilities
A temperature sensing probe offers the following possibilities:
– Temperature compensation.
– Inclusion of the temperature-sensing probe in a CNC program.
– Temperature monitoring.
– Temperature check.
– Temperature recording.

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 What you should know!

For more information, please refer to the table.

Possibility Comment
Temperature com- When using the temperature-sensing probe for
pensation temperature compensation, the measuring
time after positioning the temperature-sensing
probe is approximately five seconds. During
this time, measured values are continuously
transferred, evaluated and saved.
Inclusion of the If the temperature-sensing probe is to be
temperature-sens- included in a measuring run, the position of
ing probe in a CNC the temperature sensor must be known before-
program hand.
• Determine the position of the temperature-
sensing probe.
Temperature moni- It is possible to define limiting values for the
toring temperature. Furthermore, it is possible to
define when the temperature measurement is
to be carried out.
There are two possibilities if the limiting value is
exceeded: A warning appears in the record or
the CNC program is cancelled.
Temperature check The ambient air temperature can be measured
at any time. The temperature is compared with
the limiting valuess.
There are two possibilities when the limiting
values is exceeded: A warning appears in the
record or the CNC program is cancelled.
Temperature If the data from the last temperature measure-
recording ment is required, the temperatures of the
workpiece and the air can be recorded.

NOTE The measuring software is required in order to use the possibilities

offered by the temperature-sensing probe.
• Please read the corresponding chapters in the operating instruc-
tions for the measuring software.

Operating mode
The CMM allows measuring in two operating modes: manual and
automatic.
MAN operating mode In the manual mode the workpiece is probed by means of the joy-
sticks. The joysticks are located on the control console ➤ operating
instructions for the control console.

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 Measuring operation

AUTO operating mode In the automatic mode the workpiece is measured by means of a CNC
program. The measuring software enables programming of CNC
runs.

! Important!
Before starting the CNC program in the AUTO operating mode, you
should test the program in the MAN operating mode. The test is a
safety measure to ensure that the measurement can be carried out
without collision.

Selecting the operating mode

Select the operating mode on the control cabinet ➤ Operating ele-
ments on the control cabinet.

Measuring software
In addition to the control console, the CMM is also operated by
means of the measuring software. There are different measuring soft-
ware versions for the UNIX and Windows NT operating systems. The
operation of the measuring software versions varies.
• Please read the corresponding chapters in the operating instruc-
tions for the measuring software before carrying out the working
steps.

Standard measuring software

UNIX UMESS is the standard measuring software for the UNIX operating
system. There are numerous options for UMESS, e.g. UX1 - Extended
result display.
Furthermore, measuring software options are available for special
measuring tasks, e.g. KUM, SAM, GON.
Windows NT Calypso is the standard measuring software for the Windows NT
operating system. Provacs and Holos, for example, are used for special
measuring tasks.

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 Safety instructions

Safety instructions

! Danger!
There is a risk of injuries during all movements of the CMM.
• Ensure that nobody is at risk during manual operation of the
machine.
• Keep a safe distance away from to the CMM during automatic
measuring runs.

! Danger!
The CMM is provided with a protective circuit which monitors the
driving forces during movements of the bridge in the x and y axes. If a
collision occurs, the protective circuit causes the drives to be cut out.
The function of the protective circuit must be checked regularly in
order to guarantee the safety of the CMM.
• Check the function of the protective circuit every month
➤ page 6-8.

! Important!
Radio signals may interfere with operation of the CMM.
• Therefore, do not use any mobile phones or walkie-talkies within a
3m radius of the CMM.

! Important!
For calibration, the same measuring force and clamping of the axes
must be set as later for workpiece measurement.
• Perform the calibration in the same way as you intend to probe the
workpiece later on, i.e. with the same measuring force and axis
clamping.

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Measuring operation

Preparations for a measuring run

Prerequisites for a perfect measuring run

NOTE The following preparations have to be made to ensure maximum
accuracy of the CMM.
• Switch on the CMM at least 15 minutes before starting the mea-
suring run.
The CMM must be adapted to room temperature prior to the mea-
suring run.
• Always carry out a reference measurement after the reference
point travel and calibrate each probe used for measurement.
• Carry our temperature compensation ➤ page 7-22.

Reference point travel

Reference point
The reference point or origin is located in the upper right-hand corner
of the measuring volume. It must be determined by a reference point
travel prior to the measuring run ➤“Carrying out a reference point
travel” on page 7-16.

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 Preparations for a measuring run

Signs of the coordi- Signs of the coordinates: +x, -y and -z.

nates

4 1

5 2

1 Reference point
2 Measuring volume
3 Safety position
4 Zero point
5 Coordinate system

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 Measuring operation

Carrying out a reference point travel

! Danger!
The reference point travel is carried out automatically. Before starting
the reference point travel, make sure that nobody is at risk.
• Ensure that nobody is endangered by the travel motions.

! Important!
The reference point travel is carried out automatically. The probe head
first moves in the z direction until it reaches the mechanical end posi-
tion and then in the x and y direction.
Make sure that the reference point travel can be carried out without
any collision with components on the measuring table.
• Move the probe head to a position from where the reference point
travel can be carried out automatically.

Start by the measuring The reference point travel is started by the measuring software.
software
• Read the corresponding chapter in the ➤ operating instructions
for the measuring software.
Safety position after After the reference point travel, the probe head moves to the safety
reference point travel position (only with UMESS). The coordinates of this position are
defined in the measuring software. The coordinates must be within
the measuring volume.
Example for safety position: x= 30, y= -30, z= -30.

NOTE The position of the calibration standard has to be determined after

every reference point travel. Furthermore, all probes have to be cali-
brated and the storage positions in a probe rack have to be deter-
mined again.

Probe calibration
NOTE The measuring software is required for the following procedure.
• Please read the corresponding chapters in the operating instruc-
tions for the measuring software.

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 Preparations for a measuring run

What you should know!

Why is calibration necessary?

The computer automatically recognizes the probe system, and there-
fore knows the axial center point of the adapter plate receptacle. But
it does not know the length of the individual probes. The calculation
of the geometric data of a workpiece is not possible without this data.
Calibration is required to determine the length of the probes.
The reference measurement has to be carried out before determining
the length of the probes ➤“Carrying out a reference measurement”
on page 7-19.

In which cases is calibration necessary?

Calibration is necessary in the following cases:
– after a reference point travel
– after a collision
– when inserting a new stylus into the probe.
Normally, it is sufficient to calibrate the new stylus. However, you
should also recalibrate all other styli of the probe. This is advisable,
since the position of the other styli may have been slightly changed
when the new stylus has attached.

What should be observed during calibration?

Observe the following during calibration:
– Carry out a reference measurement.
– Select the stylus to be calibrated.
– Same axis clamping as for the measuring run.
VAST probe system – With VAST probe system same measuring force for calibration and
measuring run.

NOTE Calibration can be carried out manually or semi-automatically. How-

ever, preference should be given to semi-automatic calibration.

Preparation

What is required for calibration?

The following is required for calibration:
– Calibration standard
A calibration standard with a highly accurate ceramic sphere is
usually used ➤“Calibration standard” on page 2-12.

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Measuring operation

– Master probe
The master probe must be used for the reference measurement
➤“Carrying out a reference measurement” on page 7-19.
– Probes used for workpiece measurement.

Prerequisites for perfect calibration

Before you start calibrating, make sure that the following prerequi-
sites are met:
– The probe is stable.
– All probe components are screwed together firmly.
– The limiting values for the probe design are observed.
– The calibration sphere, probe elements and adapter plate are clean
and not damaged.
– Probe components are not damaged.

Mounting the calibration standard on the measuring

table
Since the calibration standard has a magnetic base, it must be placed
on a metal plate so that the magnet can act. A metal plate must
therefore be screwed onto the measuring table.

1 Rotary lever for activating the magnet

2 Metal plate with through holes
3 M12 threaded hole in the measuring table
4 Example of position of metal plate (for mounting calibration standard).

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 Preparations for a measuring run

• Screw the metal plate on the measuring table (max. torque

40Nm).
Select the metal plate position so that probing of the probe sphere
is possible with all probes.
• Place the calibration standard on the metal plate and turn the
rotary lever 90° to position I in order to activate the magnet.
The calibration standard can be placed in any position on the metal
plate.

Carrying out a reference measurement

The position of the calibration standard must be calibrated prior to
the length of the styli. Use the master probe for this purpose. Proceed
as follows:
1 Insert the master probe in the adapter plate receptacle
➤ page 6-16.
2 Call the menu for reference measurement ➤ Operating instruc-
tions for the measuring software.
3 Select probe (stylus) 1 on the control panel.
• Press the button between the five LEDs until the LED for probe
1 lights up.

4
3

5
1

4 Probe the sphere of the calibration standard to determine the

diameter of the sphere.
5 Remove the master probe from the adapter plate receptacle
➤“Removing the probe (manually)” on page 6-17.
Now, you can calibrate all probes.

Calibration procedure
After the reference measurement has been carried out, the probes
can be calibrated.

NOTE Semi-automatic calibration should be carried out for all probe sys-
hss
tems.
Tensor calibration should be carried out for the VAST measuring
probe system. This is important since the measuring force causes a

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 Measuring operation

certain bending of the probe. Tensor calibration makes it possible to

correct the bending for subsequent probings.
Tensor calibration must be carried out by means of vectors. The probe
can be moved in all axes.

1 Insert the probe into the adapter plate receptacle ➤ page 6-16.
2 Open the menu for calibration ➤ operating instructions for the
measuring software.
3 Select the clamping status of the axes, i.e. clamped or unclamped.
The same axis clamping status must be set as will be required later
on for workpiece measurement to prevent measuring errors.
Axis clamping must be performed via the control panel.
4 Probe system specific actions:
• The measuring force must be set for the VAST probe system.
5 Select the stylus to be calibrated on the control panel.

4
3

5
1

6 Call the menu for calibration in the measuring software and probe
the calibration sphere ➤ Operating instructions for the measuring
software.
The calibration sphere diameter is output as the result.
7 Check the result.
Standard deviation The result is evaluated based on the standard deviation. There is no
maximum standard deviation which applies to all applications. The
tolerable deviation depends on many factors: e.g. resolution and
precision of the CMM, length and rigidity of the probe shaft, qual-
ity of the probe tip, cleanness of the environment. Normally, the
standard deviation should be within a range of a few micrometers
(e.g. 0.002).
If the result is not satisfactory, repeat the calibration or look for
plausible causes. It might be necessary to decide whether or not to
accept measuring inaccuracies.
8 Repeat points 2 to 6 for all other styli of the probe.

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 Preparations for a measuring run

9 Calibrate further probes if necessary.

In this case, repeat items 1 to 7.

NOTE If high precision is required or in case of high temperature fluctua-

hss tions, the calibration procedure should be repeated regularly.
If the CMM is in operation for several weeks without interruption and
the same probes are always required for measurement, the probes
should be calibrated every week.

Causes of large deviations

If large deviations occur during calibration, measuring inaccuracies
may also be expected during subsequent measuring runs. In order to
avoid such inaccuracies, the mechanical design of the corresponding
probe should be checked.

Sources of faults and errors

The sources of faults and errors which may lead to increased devia-
tions are listed in the following.
Probe design – Probe design is not stable.
– Probe components are not screwed together firmly enough.
– The permissible probe limiting values were not observed.
The probe is too long, too heavy or contains components which
are not suitable.
Probe status – The calibration sphere or probe element is soiled, oiled-up or dam-
aged.
– Probe components or the adapter plate are/is damaged.
Magnetic field – A fault was caused by a magnetic field.
Possible causes of a magnetic field: e.g. workpiece, clamping tool,
probe extensions.
Influence of tempera- – The probe is inserted manually and calibrated immediately.
ture The temperature of the probe material as well as the material
properties change as a result of hand heat.
Even minor differences in temperature influence the material prop-
erties. The degree of this effect depends on the probe compo-
nents.

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 Measuring operation

Temperature compensation
What is temperature compensation?
The measuring software calculates the workpiece geometry for the
material properties at 20°C. 20°C is the reference temperature. Since
the actual temperature deviates from 20°C, the geometric data have
to be corrected by a correction value.
Expansion coefficient The correction value is calculated by the measuring software. How-
ever, the measuring software needs to know the temperature of the
CMM and the workpiece. Furthermore, the expansion coefficient
must be entered in the measuring software ➤ operating instructions
for the measuring software.
Procedure:
• Enter the expansion coefficient for the workpiece material in the
measuring software.
• Connect the temperature sensors ➤ page 7-22.
Calculating the correc- The measured values are automatically transferred to the measuring
tion value software. The measuring software calculates the correction value.
All of the geometric data measured on the workpiece are corrected by
the correction value with respect to the reference temperature of
20°C. Exact workpiece measurement is thus guaranteed.

Connecting the temperature sensors

Two temperature sensors are included in the standard equipment of
the CMM. These sensors are required for temperature compensation.
Sensor components The temperature sensors consist of a copper block, a long cable and a
connector.

1 Copper block
2 Connector

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 Preparations for a measuring run

• Plug the connector into the connecting sockets.

The connecting sockets are located on the rear side of the CMM.
Two sockets are available.

1 Two connecting sockets; rear side of the CMM

Application of the sen- • Place the copper blocks at two different locations in or on the
sors workpiece to be measured.

When should temperature compensation be carried out?

Temperature compensation can be carried out continuously. In some
cases it is imperative to carry out temperature compensation:
– Carry out temperature compensation each time you measure a
new workpiece.
Temperature compensation values can be integrated in the CNC
workpiece measurement program.

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Measuring operation

Probing the workpiece

How to ensure correct measurement

! Important!
Regular inspection of the probes is required to ensure correct work-
piece measurement.
• Check the styli, the probe components and the adapter plate regu-
larly.
• Remove any particles or grease film from the probe elements and
the adapter plate.
• Replace any damaged styli.

Probing procedure
Selecting the type of probing
The type of probing depends on the measuring job and the required
number of measuring points. Position measurement requires only one
or several single point probings. Multipoint probing or scanning can
be used to measure surfaces. Scanning must be used for form mea-
surements.

Probing sequence

Working step Example

1 Select the probe stylus.
2 For scanning with VAST: Surface scanning with VAST stage 1,
Select the scanning mode 2, 3 or 4
and start the measuring rou-
tine.
3 Select the element to be Circle, surface, cylinder …
measured in the measuring
software.
4 Probe the workpiece.

Probing conditions
For probing, certain conditions must be fulfilled. The conditions
depend on the probe system. The following conditions must be ful-
filled:
– Constant probing speed.

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 Probing the workpiece

– Minimum distance from the contact point.

A minimum distance is required to reach the probing speed. The
minimum distance is 0.5mm.

Probing speed
Probing should be carried out at constant speed.
The speed depends on the deflection range of the joystick. At the
beginning and end of the deflection range, the speed is proportional
to the deflection range. The speed between the beginning and the
end is constant. This speed corresponds to the probing speed.
Probing speed depen-
dent on the deflection
range of the joystick

v Speed
v1 Probing speed;
optimum speed during probing.
Maximum possible The maximum possible speed is reached at full deflection range of the
speed joystick. In the setup mode, the max. speed is approx. 70mm/s. The
actual speed depends on the standard value defined in the measuring
software and the position of the control knob on the control panel.
Proceed as follows:
1 Enter a standard value of 100% in the measuring software.
2 Adjust the speed using the control knob on the control panel.
If the control knob is turned clockwise as far as possible, the maxi-
mum possible speed corresponds to the standard value, e.g.
100%, defined in the measuring software.
The control knob allows to reduce the speed to zero. If the speed
reaches a value of less than 10% of the standard value, this will be
indicated on the control panel. An LED on the standard control
panel lights up.
• If the speed is too high for certain probings, reduce the maxi-
mum possible speed.
Turn the control knob counterclockwise to reduce the speed.

NOTE When probing oblique workpiece surfaces with an angle between 30°
and 50°, the probing speed has to be reduced.

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Measuring operation

Aligning the probe

It is still possible to align the probe after it has been assembled. This
may be necessary if some points on the workpiece cannot be probed.
The alignment of the probe for the VAST probe system is described in
the following.

1 Screws in the adapter plate for VAST

• Loosen the three screws in the adapter plate so that the probe
configuration can be turned. Do not completely unscrew the
screws!
• Insert the probe in the adapter plate receptacle.
• Turn the probe configuration until the required position is reached.
• Hold the probe configuration and remove the probe from the
adapter plate receptacle.
• Tighten the screws with a torque of 2Nm.

Preventing measuring errors

Measuring errors may have several causes. Answer the following
questions before starting the measurement:

Questions regarding the prevention of measuring yes / no

errors
– Are the probing surfaces of the workpiece clean?
– Is the workpiece secured against shifting?
– Are the probe assembly criteria fulfilled?
– Are the probe and the stylus in perfect condition?

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 Probing the workpiece

Questions regarding the prevention of measuring yes / no

errors
– Has the reference point travel been carried out?
– Has the reference measurement been carried out?
– Has the calibration been carried out correctly?
– Has tensor calibration for the VAST probe system
been carried out?
– Have all probe styli been calibrated?
– Has the correct probe stylus been selected?
– Has the same axis clamping as for calibration been
selected?
– Has the same measuring force as for calibration been
selected? – Only for VAST probe system.
– Has temperature compensation been carried out?

If you answered all of the above questions with "yes“, measuring

errors can be excluded to a large extent.

Special features of VAST probe system

Setting the measuring force
The measuring force has to be set for measuring probe systems such
as VAST. The value of the measuring force must be entered in the
measuring software ➤ operating instructions for the measuring soft-
ware.

NOTE The measuring force must be set prior to calibrating the probe. Set
the measuring force for each probe individually if required.

Why does the measur- During probing, the probe element causes changes of the workpiece
ing force have to be form. The extent of these form changes influences the precision of
set? the calculated values. In order to avoid falsified measuring data, the
measuring force should be adapted to the characteristics of the work-
piece material.

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 Measuring operation

Example: Greater changes in form can be expected with soft work-

piece materials and high measuring force than with hard workpiece
materials and low measuring force. In this case, the measured value is
falsified by the extent of the form change.

A B

A Nominal status: no workpiece deformation.

B Falsified measurement due to indentation of the workpiece. Reason: soft
material and high measuring force.
1 Extent of falsification

0,2N – normal The measuring force can be set continuously. Normally, a measuring
force of 0.2N has to be used for measurement. If larger form changes
are to be expected, the measuring force should be 0.1N.
• Set the measuring force according to your requirements.

NOTE With self-centering probings a higher measuring force in the MAN

operating mode might be useful in order to improve centering
➤“Self-centering probing” on page 7-8.
• Increase the measuring force if necessary.

Precision positioning during probing

With the VAST probe system, the joysticks are temporarily deactivated
immediately after the probe contacts the workpiece. The CMM con-
trol takes over the precision positioning of the probe. The measured
value is accepted.

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 Probing the workpiece

Notes on scanning

High travel speed

! Important!
When measuring at high travel speed and with low measuring forces
(F< 0.1N), the probe may lift off the workpiece for a short time. In
unfavorable cases, this may lead to incorrect measured values.
• Reduce the travel speed in case of low measuring forces.

Abrasion or material deposits

NOTE During scanning, the probe contacts the workpiece continuously. The
probe element glides along the surface of the workpiece. This may
cause abrasion and material deposits.
– Abrasion:
Material may be rubbed off the workpiece or probe element (e.g.
in case of sintered material) by the probe as it glides along the sur-
face of the workpiece during probing.
– Material deposits:
With certain materials (such as aluminum) material may be
removed from the workpiece and deposited on the probe element.

For this reason, probe elements should be checked regularly during all
scanning operations and replaced if necessary.
• Check the condition of the probe elements and clean them.
For information on how to remove aluminum deposits, please refer
to ➤ page 9-6.
• If the probe element is damaged, replace the stylus.

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Measuring operation

Automatic probe change

A probe rack is required for automatic probe change. Preparations
have to be made prior to an automatic probe change.
• Allocate a storage position (holder).
A specific storage position in the probe rack must be allocated to
each probe. You should note which storage position is allocated to
which probe.
• Make sure that there is no collision during the probe change.
It is possible to define intermediate positions. This is done in order
to determine the path along which the probe moves to the storage
position.

NOTE The measuring software is required in order to carry out this proce-
dure.
• Please read the corresponding chapters in the operating instruc-
tions for the measuring software.

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 Tips for effective operation

Tips for effective operation

Changing the probe automatically
If several probes are required for workpiece measurement, you should
note which probe you have assigned to which storage position.
If you require more probes than can be accommodated by the probe
rack, it is possible to mount several probe racks on the measuring
table.

Do not switch off the CMM if ...!

The start-up procedure involves a number of worksteps which take a
while to perform. Furthermore, the CMM should be switched on 15
minutes before carrying out the first measurement. You can save time
by leaving the CMM switched on.
The CMM should not be switched off in the following cases:
– If it is operated during multiple shifts.
– If workpiece measurement takes several days and the CMM should
measure under constant conditions.

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 Measuring operation

Evaluating the measuring data

Limiting values for deviations

Standard deviation The result is evaluated based on the standard deviation. There is no
maximum standard deviation which applies to all applications. The
tolerable deviation depends on many factors: e.g. resolution and pre-
cision of the CMM, length and rigidity of the probe shaft, quality of
the probe tip, cleanness of the environment. Normally, the standard
deviation should be within the range of a few micrometers (e.g.
0.002 [mm]).
It might be necessary to decide whether or not to accept measuring
inaccuracies.

Causes of large deviations

The sources of error which may lead to increased deviations are listed
in the following.

Source of error Cause

Reference point – No reference point travel has been carried out.
– No reference measurement has been carried out.
Calibration – Different axis clamping than for calibration
– Different measuring force than for calibration (with VAST)
Temperature compensation – Temperature compensation has not been carried out.
– Incorrect temperature compensation.
Probe design – Probe design is not stable.
– Probe components are not screwed together firmly enough.
– Permissible probe limiting values have not been observed.
The probe is too long, too heavy or contains components which
are not suitable.
Probe status – Calibration sphere or probe element is soiled, oiled-up or dam-
aged.
– Probe components or adapter plate are/is damaged.
Magnetic field – A fault was caused by a magnetic field.
Possible causes of a magnetic field: e.g. workpiece, clamping tool,
probe extensions.
Probing – Probing was not carried out perpendicular to the probing surface.

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 Terminating a measuring run

Terminating a measuring run

Effect of system shutdown

If you put the CMM out of operation and switch it off completely, the
following data will be lost.
– Reference point
– Information on the coordinate systems.
When putting the machine into operation again, you must perform
another reference point travel.

Shutdown procedure
After the CMM is put out of operation, the probe head remains in its
last position. The space coordinates of its position are lost.
In order to avoid faults when the CMM is put back into operation, the
measuring run should be terminated correctly. For information on the
operator‘s controls, please refer to ➤ page 2-8.
• Proceed as follows:
CMM 1 Move the probe head to a safe position.
This position must be inside of the measuring volume. Prepare for
the next start-up by positioning the probe head close to the refer-
ence point.
Computer 2 Terminate the measuring software.
3 Power down the operating system.
4 Switch off the computer.
Control cabinet 5 Switch off the drives.
• Press the quickstop button on the control cabinet and unlock it
again.
6 Switch off the control.
• Set the rotary switch to the "OFF" position.
7 Switch off the power supply.
• Turn the main switch counterclockwise to the "0" position.

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Measuring operation

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 Chapter

8 Errors and faults

.................................................................................................................................
Errors and faults may occur during operation of the CMM. The causes
may be incorrect operation or technical defects.
This chapter helps you to identify and quickly eliminate the cause of a
fault.

This chapter contains:

Errors occurring prior to the measuring run . . . . . . . . . . . . . . . . . . . 2

Faults during the measuring run. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Special measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
If nothing else helps, ... – hotline! . . . . . . . . . . . . . . . . . . . . . . . . . . 9

61211-1020202 CenterMax Operating Instructions 8- 1

Errors and faults

Errors occurring prior to the measuring run

If the measuring machine cannot be started, check whether the fol-

lowing errors can be excluded:

Error Cause Measure Check

The CMM cannot Wrong starting • Observe the specified sequence.
be started. sequence.
• First, switch on the CMM and
then the computer.
Power supply Main switch is not Connect power supply: Position "1“ must
switched on. • Set main switch to position "1“. be visible.
Control Control is not Switch on control: The indicator lamp
switched on. • Turn the rotary switch clock- above the rotary
switch must light
wise.
up.
Drives The drives are not Switch on the drives: The indicator lamp
switched on. • Turn the rotary switch on the above the switch
must light up.
control cabinet clockwise and
hold it for a few seconds.
EMERGENCY STOP Unlock the button: The button pops
button on the con- • Turn the EMERGENCY STOP out a few millime-
trol console is ters.
button slightly.
locked.
Quickstop button Unlock the button: The button pops
on the control cabi- • Turn the quickstop button out a few millime-
net is locked. ters.
slightly.
Pressure Compressed air line • Check the compressed air line Indicating instru-
defective. and the connections. ments
Compressed air line • Connect compressed air line.
is not connected.

• If the above mentioned errors can be excluded, put the CMM out
of operation and repeat the start-up procedure.
• If it is then still not possible to carry out a measuring run, call a
ZEISS service engineer or our hotline ➤ page 8-9.

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 Faults during the measuring run

Faults during the measuring run

The following table helps you to identify and eliminate faults occur-
ring during the measuring run.

NOTE A fault may have different causes. One or more measures may be nec-
essary to eliminate a certain cause. If two measures are proposed, this
does not mean that both of them have to be taken to eliminate the
fault.

Fault Cause Measure Check

No travel motion EMERGENCY STOP Unlock the button: The button pops a
possible. button on the con- • Turn the EMERGENCY STOP few millimeters.
trol console is
button slightly.
locked.
Quickstop button Unlock the button: The button pops a
on the control cabi- • Turn the quickstop button few millimeters.
net is locked.
slightly.
Collision, for exam- • Eliminate the cause of the colli-
ple with the work- sion.
piece.
• Switch on the drives.
• Reinitialize the CMM, if neces-
sary.
AUTO operating • Turn the key-operated switch on
mode set or key the control cabinet to the MAN
switch in position 0. position.
The CNC function • Wait until the measuring run is
which has not been terminated.
terminated is acti-
vated, e.g. in case
of semi-automatic
measuring run.
Probe head in z axis • Release the fall brake and pull
outside the measur- the quill downward.
ing volume.
Pressure too low. • Increase the pressure in the air Indicating instru-
supply line. ments
Filter clogged. • Change the filter.
Air noise at the air Pressure too high. • Reduce the pressure in the sup- Indicating instru-
bearings. ply line. ments
• Call a ZEISS service engineer.

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Errors and faults

Fault Cause Measure Check

The CNC measur- MAN operating • Turn the key-operated switch on
ing run cannot be mode set. the control cabinet to the AUTO
started. position.
Travel motion too The set speed is too Increase the speed:
slow. low. • Turn the control knob on the
control console clockwise.
The standard value, • Set the standard speed value in
e.g. 50%, set in the the measuring software to
measuring soft- 100%.
ware is too low.
The SLOW function • Deactivate the SLOW function Indication on the
is active. via the control console. control console
Probe change No storage posi- • Allocate a storage position to
tion allocated to the probe.
the probe.
Position of the • Reallocate storage position.
probe rack or stor-
age position was
changed.
Collision: • Reallocate storage position and
missing intermedi- set intermediate positions.
ate positions.
Two probes allo- • Reallocate storage position.
cated to one stor-
age position.

8-4 61211-1020202 CenterMax Operating Instructions

 Special measures

Special measures

After collision
• Eliminate the cause of the collision.
• Switch on the drives.
• Turn the rotary switch on of the control cabinet clockwise and
hold it until the indicator lamp located above lights up.
• Initialize the CMM if the cause cannot be eliminated by means of
the above measure.
➤ Operating instructions for the measuring software.
• Then switch on the drives.

Collision during probe change

A collision occurring during probe change may be caused by missing
intermediate positions.
• Reallocate the storage position to the probe and choose the inter-
mediate positions so that probe change can be carried out without
collision.

Probe head outside the measuring volume

If the probe head moves in the z axis outside of the measuring vol-
ume, the drives are switched off. The drives can only be switched on
again after the probe head has been positioned inside the measuring
volume.

Returning the probe head to the measuring volume

To return the probe head to the measuring volume, proceed as fol-
lows:

61211-1020202 CenterMax Operating Instructions 8-5

Errors and faults

x direction: Position the probe head in the measuring volume by

pushing against the cover of the quill. If you cannot touch the cover
with your hands you then must push the bridge to the front of the
measuring volume in the y direction. Always observe the following:

• Push against the marked spot on the cover and move the quill
back into the measuring volume.
Depending on the quill position, you have to push against the
cover from the left- or right-hand side.

! Important!
You may only push against the cover of the quill.
• Do not push against the quill or the probe head.
The probe head and quill may be damaged.

y direction: To return the probe head to the measuring volume,

push against the housing of the column on the drive side of the
bridge.

8-6 61211-1020202 CenterMax Operating Instructions

 Special measures

• Push against the marked spot on the cover and move the cross-
beam back into the measuring volume.
Depending on the crossbeam position, you have to push against
the crossbeam from the left- or right-hand side.

! Important!
You may only push against the crossbeam at the drive end.
• Do not push against the probe head and the crossbeam at the
drive side.
The probe head, quill or crossbeam may be damaged.

z direction: You must release the quill fall brake before moving the
probe head back into the measuring volume. Proceed as follows:
• Move the crossbeam in the y direction to the front area of the
measuring volume. Always observe the following: ➤ page 8-6.
Move the crossbeam forward far enough so that you can grasp the
cover with your hand.
The right-hand side of the cover (1) is provided with an opening. You
can access the switch for deactivating the fall brake through this
opening.

61211-1020202 CenterMax Operating Instructions 8-7

Errors and faults

• Press the switch with a thin object while pulling the quill down-
wards.

! Important!
Do not pull the probe head.
• Hold the quill above the probe head (2) in order to pull the quill
downwards.

A Front view
B View from the right

1 Switch for fall brake

2 Quill
3 Pull direction

Switching on the drives

The drives can be switched on after the probe head has been in the
measuring volume.
• Turn the rotary switch clockwise approx. 90° and hold it there until
the indicator lamp above lights up.
As soon as the indicator lamp above the switch lights up, the
drives are switched on. The rotary switch does not engage. It snaps
back as soon as it is released.

8-8 61211-1020202 CenterMax Operating Instructions

 If nothing else helps, ... – hotline!

If nothing else helps, ... – hotline!

Hotline: If a fault cannot be eliminated and occurs again after a renewed start-
+49 (0)180 3336337 up, call a ZEISS service engineer or our hotline in Oberkochen (Ger-
many). The phone number of our hotline is: +49 (0)180 3336337.

61211-1020202 CenterMax Operating Instructions 8-9

Errors and faults

8-10 61211-1020202 CenterMax Operating Instructions

 Chapter

9 Maintenance and care

.................................................................................................................................
Careful maintenance and care are essential for perfect operation of
the CMM. The first section of this chapter will provide you with infor-
mation on maintenance. The following section will inform you on the
measures required to properly care for the CMM.

This chapter contains:

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

61211-1020202 CenterMax Operating Instructions 9- 1

 Maintenance and care

Maintenance
Purpose of mainte- Proper maintenance ensures …
nance work
– safe measuring operation,
– that there are no downtimes,
– that the CMM always measures with maximum accuracy.
In order to guarantee these features in the long run, the CMM
requires regular maintenance.

! Danger!
Maintenance work must be carried out only by skilled personnel.
These persons must have received special training on the correspond-
ing CMM qualifying them to carry out all necessary maintenance
work.

Maintenance agree- We recommend concluding a maintenance agreement to guarantee

ments safe operation. ZEISS offers maintenance agreements which relieve
you of any need to worry about maintenance.
• If you would like to subsequently conclude a maintenance agree-
ment retrospectively, call our hotline.
The phone number of our hotline is: +49 (0)180/3336337.
Regarding maintenance work, a distinction is made between
maintenance and machine care.
Maintenance:
– Preventive maintenance is performed on all components according
to the work plans.
– Inspection of precision, adjustment and calibration.
– Replacement of wearing parts.
Machine care:
– Preventive maintenance is performed on defined components
according to the working plans.
– Verification and correction of geometry and calibration.
– Replacement of wearing parts.
Maintenance intervals The time intervals between two maintenance calls depend on the
degree of utilization. Generally, maintenance should be carried out at
at least every 2000 operating hours.

9-2 61211-1020202 CenterMax Operating Instructions

 Maintenance

We recommend:

Degree of utilization Scope of annual maintenance

work
1-shift operation: 1 x maintenance
2-shift operation 1×maintenance + 1×machine care
3-shift operation 2×maintenance

Scope of maintenance work

Maintenance work includes inspection of the following:

Components Examples
Safety devices (standard For example drive monitoring; colli-
equipment) sion protection in the Series measure-
ment mode
Compressed-air supply For example air bearings, pressure
controller, air filters, valves
Measuring system For example functioning, precision
Control For example operator’s controls on
the control cabinet; control panel

NOTE When concluding a maintenance agreement, you also must specify

any optional equipment to be covered.

61211-1020202 CenterMax Operating Instructions 9-3

 Maintenance and care

Care
Although the CMM is robust and easy to care for, a certain degree of
care is still required. The sensitive measuring system of the CMM
requires a certain degree of cleanliness. Even the smallest dust parti-
cles on the probe element or the calibration sphere may cause inaccu-
rate measurements.
Cleaning and checking Measures for care also include the regular cleaning and checking of
certain components.
For cleaning, you require:
– Mild detergent
– A fluff-free cloth, e.g. made of linen
– A vacuum cleaner
– If necessary, special solvent for removing aluminum deposits from
the probe element, e.g. KOH (10%).

! Danger!
When carrying out care measures, make sure that no travel move-
ments are performed.
• Switch off the drives on the control cabinet in order to enable safe
execution of the care measures.

hss
! Important!
• Do not use compressed air for cleaning.

NOTE Use fat dissolving and non-corroding cleaning agents. We recom-

mend Clean from JVA. This cleaning agent can be ordered from us –
order no.: 84865.

NOTE Preventive care also includes making sure that all workpieces to be
measured are clean. The workpieces must be free from machining res-
idues (e.g. metal chips, oil) and dust.
• Clean the workpieces before placing them on the measuring table.

9-4 61211-1020202 CenterMax Operating Instructions

 Care

Overview
The components requiring care are listed in the following. The time
intervals apply only if all installation site requirements have been met.

Object Interval Type of care

Measuring table Every week or more fre- Vacuum cleaner, ➤ page 9-5
quently cleaning agent
Threaded holes in the Every week Vacuum cleaner ➤ page 9-6
measuring table
Probe elements At least every week Depending on the degree ➤ page 9-6
of soiling:
– cleaning agent.
– Special solvent; e.g.
KOH for removing alu-
minum deposits
Calibration sphere Every week or more fre- Cleaning agent ➤ page 9-7
quently
Adapter plate As required Fluff-free cloth; possibly ➤ page 9-7
cleaning agent
Probe head As required Dry or damp cloth ➤ page 9-7
Probe rack Every month Vacuum cleaner ➤ page 9-8
clean with a cleaning
agent, if required
Concertina cover Every month Vacuum cleaner ➤ page 9-8
Housing covers Every month Mild normal cleaning ➤ page 9-8
agent
Filter mat for ventilation Every three months Clean by beating and vac- ➤ page 9-9
of the control cabinet uum with a vacuum
cleaner;
replace the filter, if
required
Filter for compressed air As required Change ➤ page 9-10

Care measures
Measuring table
The workpieces must have full contact with the measuring table. Any
hard particle below the workpiece may lead to inaccurate measure-
ments. Furthermore, the surface of the measuring table and the
workpiece may be damaged.

61211-1020202 CenterMax Operating Instructions 9-5

Maintenance and care

Before placing a workpiece on the measuring table make sure that

the measuring table is clean.
• Remove larger particles with a vacuum cleaner.
• Then clean the measuring table with a mild cleaning agent.

! Danger!
There must not be any grease film on the measuring table. Work-
pieces may slide and fall off the measuring table, thus presenting a
risk to the personnel. Before placing a workpiece on the measuring
table make sure that the measuring table is free from lubricants.
• Remove any greasy and oily substances from the measuring table.

Threaded holes
Dust may accumulate in the threaded holes and threads. In order to
ensure perfect condition of the threads, remove any dirt deposit from
the threaded holes with a vacuum cleaner.

Probe elements
Probe elements may be soiled e.g. by dust particles. Furthermore,
material from the workpiece being probed may settle on the probe
element, especially during scanning.
• Clean the probe elements with a fluff-free cloth.
• Use a cleaning agent if required.
Make sure that the probe element is free from cleaning agent resi-
dues.

NOTE The styli must be handled carefully. If force is exerted, the glued bond
between the probe element and the probe shank may be separated
and the probe shank may be bent or broken.
• Do not exert any force when cleaning.

If material from the workpiece settles on the probe element, it can be

removed with special solvents.
Removing aluminum An aluminum deposit can be removed with 10% NaOH solvent (soda
deposits lye) or with 10% KOH solvent (potassium lye). Make sure that the sol-
vents do not act too long since the glued bond between the probe
element and the probe shank may be affected. For cleaning, proceed
as follows:
• Wear rubber gloves and safety glasses.
• Immerse a cloth (e.g. cotton cloth) into one of the two solvents
and clean the probe element with the cloth.

9-6 61211-1020202 CenterMax Operating Instructions

 Care

• Rinse the probe elements immediately with water and dry them.

hss
! Danger!
Caustic solvents may represent a health hazard. When using caustic
solvents, always take protective measures, e.g. wear rubber gloves
and safety eyeglasses.
• Observe the general protective measures when handling harmful
solvents.

NOTE Whenever the styli are not in use, store them in a safe place, ideally in
the probe kit.

Calibration sphere
The calibration sphere must be clean and in perfect condition to
ensure correct calibration.
• Clean the calibration sphere with a fluff-free cloth.
• Use a cleaning agent if required.
Make sure that the probe element is free from cleaning agent resi-
dues.

Adapter plate
The adapter plate must be protected against soiling.
• Store the adapter plate in a dust-free and clean place, e.g. in a
cabinet or drawer, whenever it is not in use.
Cleaning:
Wipe off the adapter plate with a dry or damp cloth. Dry the adapter
plate in order to avoid oxidation of its contacts.
If the adapter plate is dirty:
• Clean it with a mild cleaning agent.
• Then dry it.
Make sure that the adapter plate is free from cleaning agent residues.
The function of the adapter plate could otherwise be adversely
affected.

Probe head
The adapter plate and the adapter plate receptacle must be protected
against soiling.
• Put a protective cap on the adapter plate receptacle of the probe
head whenever no probe is inserted in the adapter plate receptacle
or the probe head is not in use.

61211-1020202 CenterMax Operating Instructions 9-7

Maintenance and care

• Store the probe head in a dust-free and clean place, e.g. in a cabi-
net or drawer.
Cleaning:
Clean the probe head with a dry or damp cloth.
If the adapter plate receptacle is dirty:
• Clean the adapter plate receptacle with a mild cleaning agent.
• Then dry the adapter plate receptacle.
Make sure that the adapter plate receptacle is free from residues of
the cleaning agent. The function of the adapter plate receptacle may
be affected.

Probe rack
Vacuum the probe rack and the storage positions with a vacuum
cleaner and clean them with a mild cleaning agent.
• Remove all cleaning agent residues.

Concertina cover
Vacuum the concertina cover with a vacuum cleaner and clean it with
a damp cloth.

! Important!
The cover must not be removed.

Housing covers
Vacuum the housing covers and clean them with a damp cloth.

! Important!
The housing covers must not be removed.

Inspection measures
Checking the probe
Intensive care of the CMM also includes inspection of the compo-
nents used.
Regular inspection of the probes is required to ensure correct work-
piece measurement.
• Check the styli, other probe components and the adapter plate
regularly.

9-8 61211-1020202 CenterMax Operating Instructions

 Care

• Remove any particles or grease film from the probe elements and
the adapter plate.
• Replace any damaged styli.

Abrasion or material deposits

NOTE During scanning, the probe contacts the workpiece continuously. The
probe element glides along the surface of the workpiece. This may
cause abrasion and material deposits.
– Abrasion:
Material may be rubbed off the workpiece or probe element (e.g.
in case of sintered material) by the probe as it glides along the sur-
face of the workpiece during probing.
– Material deposits:
With certain materials (such as aluminum) material may be
removed from the workpiece and deposited on the probe element.

For this reason, probe elements should be checked regularly during all
scanning operations and replaced if necessary.
• Check the condition of the probe elements and clean them.
For information on how to remove aluminum deposits, please refer
to ➤ page 9-6.
• Replace the stylus if the probe element is damaged.

Cleaning/changing the filter mat

The interior of the control cabinet is cooled by a fan. The fan is
attached to the rear side of the control cabinet. The filter mat in the
intake hole must be cleaned every three months.

1
2
3

1 Fan
2 Air filter
3 Warning label: "Verschmutztes Luftfilter austauschen oder reinigen. /
Clean or replace soiled air filter.“

61211-1020202 CenterMax Operating Instructions 9-9

Maintenance and care

• Remove the air filter cover (2).

• Clean or replace the filter mat.
• Place the cover on the air filter.

Changing the compressed air filters

The compressed air unit is equipped with at least two filters. The
CMM is usually equipped with a fine filter and an extra fine filter. The
filters have to be checked regularly. The glass windows make it possi-
ble to check the degree of soiling.

! Danger!
Switch off the compressed air before changing the filters.

A B

A Fine filter
B Extra fine filter

A B C

1 4

2
6
3

9-10 61211-1020202 CenterMax Operating Instructions

 Care

With the extra fine filter, the viewing glass (C) indicates when the fil-
ter has to be changed. When changing the extra fine filter, you should
also change the fine filter.

Indication in the viewing glass with the extra fine filter

Green OK.
Red Change.

Proceed as follows when changing filters ➤ Drawing:

1 Push the filter cap upwards and hold it.
2 Turn the filter cap in the direction of the arrow.
3 Pull the filter cap downwards.
4 Turn the filter element in the direction of the arrow and unscrew it.
5 Dispose of the filter element.
6 Screw in the new filter element.
7 Reattach the filter cap.
The filter element for the fine filter consists of a sleeve pulled over a
guide.
• To change filters,, remove the sleeve from the guide and put on a
new one.
• Screw the guide back in.
• Reattach the filter cap.

61211-1020202 CenterMax Operating Instructions 9-11

Maintenance and care

9-12 61211-1020202 CenterMax Operating Instructions

Index
A identification 2-2
improper use 1-7
Adapter plate
initializing 7-6
function 2-14
installation 4-4
VAST 2-19
number of the CMM type 2-2
Axis clamping 7-6
serial number 2-2
clamped status 7-7
series 2-2
unclamped 7-7
switch off 7-33
switch-on 6-5
B switch-on sequence 6-5
Bridge 2-4 transport 4-2
travel directions 2-5
C year of manufacture 2-2
Collision
Cable
during probe change 8-5
cable duct 5-14
measures to be taken after collision
Calibration 7-16
7-6, 8-5
calibration standard 2-12
Collision protection 7-6
in which cases? 7-17
Columns
position of the calibration standard
bridge 2-6
7-19
Components of the CMM (overview) 2-3
position on the measuring table 7-19
Compressed-air supply 5-3
preparation 7-17
requirements 5-4
prerequisites 7-18
visual check 5-14
procedure 7-19
Concertina cover 2-3
semi-automatic 7-19
Control 2-6
sources of faults and errors 7-21
control cabinet 2-6
tensor calibration 7-20
protection class 2-6
what should be observed? 7-17
switch on/off 2-8
why? 7-17
switching on 6-6
Calibration standard
type plate 2-6
mounting 7-18
Control cabinet
Calypso 7-12
main switch 2-8
Care 9-4
operating elements 2-8
adapter plate 9-7
Control console 2-9
calibration sphere 9-7
joysticks 2-10
compressed air filters 9-10
standard control console 2-10
filter mat 9-9
Coordinate axes 2-5
inspection measures 9-8
Coordinate systems 7-2
measuring table 9-5
signs of the coordinates 7-15
overview of measures 9-5
Correction value
probe elements 9-6
temperature compensation 7-22
probe head 9-7
Crossbeam 2-6
threaded holes 9-6
CE marking 1-2
Chucks 6-3 D
Clamping technique 2-24 Deviations
CMM 1-6 causes 7-21, 7-26, 7-32
bridge 2-4 standard deviation 7-20
coordinate axes 2-5
design 2-3

61211-1020202 Operating Instructions Index 1

 Drive side 2-4 purpose 9-2
Drives Measuring data
automatic cutoff 6-8 causes of deviations 7-32
switch off 2-9, 2-10 deviations 7-32
switch on 2-8 evaluate 7-32
switching on 6-7 Measuring force 7-8, 7-27
Drive-side column 2-3 standard value 7-28
Measuring range 3-2
E Measuring run
start-up 6-5
EMERGENCY STOP button 2-10
terminate 7-33
Environmental conditions
Measuring software 7-12
CMM 3-3
Calypso 7-12
probe system VAST 3-5
UMESS 7-12
Expansion coefficient 7-22
Measuring table 2-4
threaded holes 2-4
F Measuring volume 2-5
Filter Multipoint measurement 7-4
compressed air supply 5-6 transfer of measured values 7-5
control cabinet 9-9
O
G Operating elements
Guideway 2-4 control cabinet 2-8
Guideway side 2-4 Operating mode 7-11
Guideway-side 2-3 automatic 2-9, 7-11
manual 2-9, 7-11
selecting 6-7
H Options
Hotline 8-9 illuminating device 2-13
loading device 2-13
I Order number
Installation 4-4 probe kits 2-23
prerequisites 4-5
P
J Power supply
Joystick 2-10 connections 5-3
effect on probing speed 7-25 switch on power 6-6
Joysticks 2-10 switch on/off 2-8
visual check 5-14
Pressure
K adjustment 5-6
Key-operated switch 2-8 filter 5-6
pressure gages 5-5
L required pressure 5-5
Preventing measuring errors 7-26
Limiting values
Probe
VAST 2-16
alignment 7-26
assembly 2-22, 6-12
M automatic change 7-30
Main switch 2-8 check 9-8
Maintenance cirteria for assembling probe 6-13
machine care 9-2 clamping technique 2-24
maintenance agreements 9-2 combination 2-19
maintenance intervals 9-2 components 2-19

Index 2 61211-1020202 Operating Instructions

 configuration 2-19 Protective circuit 6-8
conical probe 7-9 check in the y axis 6-10
example for screwing technique 6-15 check of x axis 6-8
insertion 6-16 function of protective circuit 6-8
joining elements 2-20 Push-and-turn switch 2-8
limiting values for probe construction
6-14 Q
probe elements 2-21
Quill 2-3, 2-4, 2-6
probe kits 2-23
removing 6-17
screwing technique 2-23 R
storage 2-24 Reference measurement 7-19
stylus 2-20 Reference point 7-14
technical data 2-23 Reference point travel 7-14
temperature-sensing probe 2-15 carry out 7-16
Probe change Reference probe 7-18
automatic 7-30 Rotary switch 2-8
Probe elements 2-21
abrasion or material deposits 9-9
application 2-21
S
Probe head Safety
mounting / changing 6-11 definition of a specialist 1-9
returning the probe head to the requirements for person responsible
measuring volume 8-5 for CMM 1-9
Probe kits 2-23 requirements for safe use 1-10
order numbers 2-23 safety devices 1-11
Probe rack 2-26 safety of the machine (test seal) 1-3
components 2-26 safety symbols on the CMM 1-10
installation 5-8 Safety device
mounting 5-8 crane lock 6-4
mounting the holders 5-9 EMERGENCY STOP button 2-10
requirements 5-8 fall brake 8-7
Probe system quickstop button 2-9
adapter plate 2-19 Safety position 7-15, 7-16
functions of the components 2-14 Scanning 7-5, 7-29
improper use 1-8 Scope of delivery 1-2
measuring principle 2-14 Screwing technique
proper use 1-7 example 6-15
standard equipment 2-15 Self-centering probing 7-8
types 2-14 Serial number 2-2
Probing Signs of the coordinates 7-15
probing conditions 7-24 Single point probing 7-3
probing directions 7-2 Sources of error
selecting the type of probing 7-24 errors prior to the measuring run 8-2
self-centering 7-8 faults during the measuring run 8-3
sequence of working steps 7-24 probe head outside the measuring
small bore 7-9 volume 8-5
V groove 7-8 Sources of faults and errors
vector 7-7 calibration 7-21
with VAST 7-4 Specialist
Probing speed 7-25 definition 1-9
Proper use 1-6 Speed 2-10
CMM 1-6 Standard deviation 7-20
probe system 1-7 Standards 1-3
CE marking 1-2
directives 1-2

61211-1020202 Operating Instructions Index 3

 Stylus 2-20 measuring force 7-27
Switch precision positioning 7-28
key-operated switch 2-8 special features 7-27
main switch 2-8 Vibration analysis 4-4
Push-and-turn switch 2-8
rotary switch for drives 2-8 W
Rotary switch for the control 2-8
Warranty 1-5, 1-6
Weight
T workpiece, maximum 3-2
Technical data Windows-NT measuring software 7-12
CMM 3-2 Working-hour meter 2-9
compressed air 3-3 Workpiece
electric data 3-3 chucks 6-3
environmental conditions for CMM heavy workpieces 6-4
3-3 lowering onto measuring table 6-4
overvoltage categroy 3-2 positioning 6-3
pollution degree 3-2 probing (VAST) 7-4
probe system 3-5 Workpiece weight, maximum 3-2
protection class 3-2
travel speed 3-3 X
Temperature compensation 7-22
X-bridge 2-3
connecting the temperature sensors
7-22
correction value 7-22 Y
Temperature sensor 7-22 Year of manufacture 2-2
Temperature-sensing probe 2-15, 2-17,
7-9
application 2-17
notes on temperature measurement
7-9
possibilities 7-10
Tensor calibration 7-20
Threaded holes in the measuring table
2-4
Transport 4-2
Type plate
CMM 2-2
control 2-6
Types of measurement 7-3
multipoint measurement 7-4
scanning 7-5
single point probing 7-3

U
UMESS 7-12
UNIX measuring software 7-12
Unlock fall brake 8-7

V
VAST probe system 2-15
adapter plate 2-19
application 2-15
components 2-16
limiting values 2-16

Index 4 61211-1020202 Operating Instructions

Glossar
Term Explanation
Adapter plate Component of the probe; inserted in the adapter plate receptacle.
Adapter plate receptacle Component of the probe head; used for holding the adapter plate
ATAC Adaptive Touch Advanced Control
Bridge The bridge consists of two supports and the crossbeam.
Calibration standard Calibration tool; device for the calibration of probes
CMM Coordinate measuring machine
Collision The probe, probe head or quill travel at high speed against an obsta-
cle, such as the workpiece, probe rack, calibration tool
Creep feed Speed reduced to 10% of the maximum possible speed
HTG High Temperature Gradient
Measuring software Software used for workpiece measurement, e.g. UMESS (for UNIX),
Calypso (for windows NT)
MPH (MT) Measuring probe system
Probe Unit consisting of a adapter plate and probes
Probe head The probe head registers a probing and transfers the pulse to the
measuring system.
Probe rack Device for automatic probe change
Quill z axis; the probe head is attached to the quill.
RDS Stepping articulating head
Reference point Origin of the machine coordinate system; determined by the refer-
ence run.
Reference point travel Automatic measuring routine to be carried out immediately after
starting. It is a prerequisite for all measurements.
Safety position defined distance to the reference point
Sensor see probe head
Series measuring mode Measuring operating at the maximum possible speed; e.g. 300mm/s
for Prismo; operating mode AUTO
Setup mode Maximum possible speed limited to a certain value, e.g. 70mm/s for
Prismo; operating mode MAN
TPH (ST) Trigger probe system
VAST Variable Accuracy and Speed Probing Technology
Vector A vector is the space diagonal of the coordinates x, y and z.

61211-1020202 Operating Instructions Glossary 1

Glossary 2 61211-1020202 Operating Instructions
Appendix
Application examples

Components

Probe systems in
operation
Calibration: RDS/RST probe system:

VAST: probe system Circle scanning:

Probing a part feature: "circle“:

61211-1020202 Operating Instructions Appendix 1

Appendix 2 61211-1020202 Operating Instructions
61211-1020202 Operating Instructions 01/02