HEIDENHAIN ND 1200 User Manual

Operating Instructions

ND 1200
QUADRA-CHEK

Software Version

2.16

English (en)
4/2009

ND 1200 Introduction

1 LCD screen
2 Soft keys
3 Measurement function keys
4 Axis keys
5 Mode selection keys
6 Command keys
7 Menu key
8 Arrow cursor keys
9 Fast track keys
10 Numeric keypad
11 Send key
12 LCD On/Off key

ND 1200 panel keys

Panel keys are used to initiate feature measurements, apply
tolerances, send reports of measurement results and configure
operational parameters.

Panel function key Panel key
Soft keys: Functions change in support of the activities displayed

on the LCD.

Measure keys: Select a feature measurement type. Feature
measurement types include points, lines, circles distances,
angles, skew alignments and Measure Magic.

Axis keys: Select axes for zeroing or presetting datums prior to
measurements.

Mode keys: Select unit of measure, datum, cartesian or polar
coordinate system and help.

Command keys: Control measurement and data entry
processes.

ND 1200 QUADRA-CHEK 3

Panel function key Panel key
Menu key: Displays five soft key menus for system setup,

programming, extra functions clearing data and optional optical
edge detector functions.

Arrow cursor keys: Used to scroll through lists and navigate
menus and setup screen data fields. The up arrow cursor key is
also used to begin a feature construction process, as described
later in the feature Constructions portion of this chapter.

Fast track keys: Two programmable fast track keys are used to
perform frequently used functions. These keys can easily be
located by touch without taking your eyes off the part. By default
the left fast track key is assigned the Enter key function and the
right is assigned the Finish key function. Users can program
either fast track key as described later in the Hotkeys portion of
Chapter 2: Installation, Setup and Specifications.

Numeric keypad: Used to enter numeric data. Additionally, the
decimal point key and +/- key are used to adjust the contrast

of the LCD display.

Send key: Used to transmit measurement results to a computer,
USB printer or USB flash drive.

LCD On/Off key: Press the LCD on/off button to turn the LCD
display off without removing power from the ND 1200. Press the
button a second time to restore the LCD display. Additionally, the
LCD On/Off key can be used to clear feature data, datums and
skews.

4 Preface

ND 1200 rear panel

1 Serial number label
2 Power switch
3 Power cord connector and fuse holder
4 Power ground access
5 Measurement axis connectors
6 RS-232 serial port connector
7 Optical reference cable connector
8 Optical sensor cable connector
9 Not supported in the ND 1200
10 Tilt base mechanical tightness adjustment
11 Electrical Ratings label

ND 1200 side panel

1 Speaker/headset jack
2 USB Type A connector
3 RJ-45 Foot switch/hand switch/keypad connector

ND 1200 QUADRA-CHEK 5

Information contained in this manual

This User's manual covers the operation, installation, setup and
specifications of the ND 1200. Operating information is contained in
chapter 1. Installation, setup instructions and specifications are
contained in chapter 2.

Fonts used in this manual

The following fonts are used to indicate operator controls or to show
emphasis:

 Operator controls - soft keys and other panel keys are shown in

upper case.

 Emphasis - Items of special interest or concepts that are

emphasized to the user are shown in bold type.

Showing sequences of key presses

The ND 1200 user performs sequences of soft key and panel key
presses to measure part features and complete other tasks. These
sequences are indicated using text as shown in the following
example:

 Press the MENU key, press the EDGE soft key and then press the

AUTO E soft key is sometimes abbreviated as:

 Press MENU/EDGE/AUTO E

Symbols within notes

Notes are marked with symbols on the left indicating the type, or
potential severity of the information.

General Information

This is additional or supplementary information about an
activity or concept.

Warning

This warns of a situation or condition that could lead to
measurement errors, equipment malfunction or
equipment damage. Do not proceed until the message is
read and understood.

Caution - Risk of electric shock

This warns of a situation or condition that could lead to
electrical shock and to personal injury or death. Do not
proceed until the message is read and understood.

6 Preface

Safety considerations

General accepted safety precautions must be followed when
operating the system. Failure to observe these precautions could
result in damage to the equipment, or injury to personnel. It is
understood that safety rules within individual companies vary. If a
conflict exists between the material contained in this manual and the
rules of a company using this system, the more stringent rules should
take precedence.

The ND 1200 is equipped with a 3-wire power plug that
includes a separate ground connection. Always connect
the power plug to a 3-wire grounded outlet. Use of 2-wire
power plug adapters or any other connection accessories
that remove the third grounded connection create a safety
hazard and should not be permitted.

Unplug the ND 1200 from the power outlet and seek the
assistance of a qualified service technician if:

 The power cord is frayed or damaged or the power plug

is damaged

 Liquid is spilled or splashed onto the enclosure
 The ND 1200 has been dropped or the exterior has been

damaged

 The ND 1200 exhibits degraded performance or

indicates a need for service some other way

ND 1200 measurement axes

The ND 1200 DRO can display 2, 3, or 4 axes depending on the model
purchased. DRO screen images used throughout this manual show
different numbers of axes and are for illustration only.

Software version

The software version is shown in the About setup screen discussed
later in chapter 2.

Cleaning

Use only a cloth dampened with water and a mild detergent for
cleaning the exterior surfaces. Never use abrasive cleaners, and never
use strong detergents or solvents. Only dampen the cloth, do not use
a cleaning cloth that is dripping wet.

ND 1200 QUADRA-CHEK 7

8 Preface

1 Operation ..... 13

1.1 ND 1200 Overview ..... 14

1.2 Basic Functions of the ND 1200 ..... 16

Switching on the ND 1200 ..... 16

Establishing a repeatable machine zero ..... 17

Switching off the ND 1200 ..... 17

Panel key descriptions ..... 18

LCD screen and soft key layout ..... 22

DRO mode screen and soft keys ..... 22

Feature evaluation mode screens and soft keys ..... 23

Feature measurement mode screen and soft keys ..... 24

ND 1200 Menus ..... 25

1.3 Preparing to Measure ..... 29

Power-up the ND 1200 ..... 29

Establish machine zero ..... 29

Adjust LCD screen contrast ..... 30

Select unit of measure ..... 30

Select a datum ..... 30

Select a coordinate system ..... 30

Select the desired annotation ..... 31

Toggle between forward and backward annotation ..... 31

Select a probe type ..... 32

Select crosshairs: ..... 32

Select an optical edge probe ..... 32

Calibrate the optical edge detector ..... 33

Perform a Teach ..... 33

Perform a D. Cal ..... 33

Perform an X Cal ..... 33

Align the part to a measurement axis ..... 34

Perform a part alignment (Skew) ..... 34

Establish a datum ..... 35

Probe skew and part edge lines for point construction ..... 35

Construct a datum point from line features ..... 36

Zeroing the datum ..... 36

Presetting the datum ..... 37

1.4 Measuring Part Features ..... 38

Part features ..... 38

Feature list ..... 38

Probing part features ..... 39

Probing with crosshairs ..... 39

Probing with optical edge detection ..... 39

Probing with Measure Magic ..... 40

Measuring features ..... 41

Auto repeat ..... 41

Measuring points ..... 42

Measuring lines ..... 43

Measuring circles ..... 44

Measuring distances ..... 45

Measuring angles ..... 46

ND 1200 QUADRA-CHEK 9

1.5 Creating Part Features ..... 47

Created features ..... 47

Creating features ..... 47

Example of creating a feature ..... 48

1.6 Constructing Part Features ..... 49

Constructed features ..... 49

Constructing features ..... 49

Example of constructing a feature ..... 50

..... 51

More feature construction examples ..... 51

1.7 Tolerancing ..... 54

Feature tolerances ..... 54

Applying tolerances ..... 55

Example of applying a tolerance ..... 56

1.8 Programming ..... 58

ND 1200 programs ..... 58

Recording a program ..... 58

Example of recording a program ..... 59

Running a program ..... 60

Example of running a program ..... 61

Editing a program ..... 62

Displaying program steps ..... 62

Expanding and compressing a program steps ..... 63

Changing a program step ..... 64

Deleting a program step ..... 67

Inserting new program steps ..... 68

Copying a program ..... 69

Deleting a program ..... 70

Backing up programs ..... 71

1.9 Reporting ..... 72

Reporting ..... 72

Sending reports ..... 72

1.10 Error Indications ..... 73

Scale errors ..... 73

10

2 Installation, Setup and Specifications ..... 75

2.1 ND 1200 Shipment Contents ..... 76

Items included with the ND 1200 ..... 76

Optional items possibly included ..... 76

Repackaging the ND 1200 ..... 77

2.2 Hardware Installation ..... 78

Assembling the mounting stand ..... 78

Benchtop location and mounting ..... 78

Arm mounting (optional) ..... 79

Connecting power ..... 80

Connecting encoders ..... 81

Connecting a computer ..... 82

Connecting a headphone ..... 82

Connecting a USB printer ..... 82

Connecting an optional foot switch or remote keypad ..... 83

Connecting and installing optical edge detection ..... 84

ND 1200 QUADRA-CHEK 11

2.3 Software setup ..... 85

Setup menu ..... 86

Setup example: entering the supervisor password ..... 87

Order of setup ..... 88

Language selection and product version ..... 89

Supervisor password and program unlocking ..... 90

Loading settings files and startup screens ..... 91

Encoder configuration ..... 92

Encoders screen ..... 92

Misc screen ..... 95

Optical edge detection setup ..... 96

Edge menu tools ..... 96

Misc screen ..... 97

Stage squareness calibration ..... 98

Error correction ..... 99

Linear error correction (LEC) ..... 100

Segmented linear error correction (SLEC) ..... 102

Nonlinear error correction (NLEC) ..... 106

NLEC by measuring points on a calibration grid ..... 108

NLEC by importing an nlec.txt file ..... 110

Saving NLEC correction data as an nlec.txt file ..... 110

Measurement scaling for parts that expand or shrink ..... 111

Scale Factor screen ..... 111

Measurement configuration ..... 112

Measure screen ..... 112

Display formatting ..... 115

Display screen ..... 115

Hot key assignments ..... 118

Hot keys screen ..... 118

Print formatting ..... 122

Print screen ..... 122

Form chars screen ..... 125

RS-232 port configuration ..... 126

RS232 screen ..... 126

USB port configuration ..... 128

USB screen ..... 128

Audio configuration ..... 130

Sounds screen ..... 130

Key repeat rate adjustment ..... 131

Misc screen ..... 131

Time and date settings ..... 132

Clock screen ..... 132

Saving settings files and programs ..... 133

2.4 Specifications ..... 134

Dimensions ..... 135

Arm mount bracket ..... 136

12

Operation

1.1 ND 1200 Overview

The ND 1200® is an advanced digital readout (DRO) system for
performing high-precision 2, 3 or 4 axis measurements using analog or
TTL encoders. The ND 1200 can be used with optical comparators,
toolmaker’s microscopes or video measurement systems as part of in­line production or in final quality inspection.

The following functions are available in the ND 1200:

 Reference mark evaluations for distance-coded and single reference

encoders

 Linear, segmented linear and optional nonlinear error correction
 Scaling factor for parts that expand or shrink

1.1 ND 1200 Overview

 Multilingual LCD user interface: language is selected by the user
 soft key functions under LCD change to support different user

activities

 Arrow cursor keys for easy navigation of lists and menus
 Measurement support function keys clearly marked with:

 Unit of measure: mm or inch
 Datum 1 or datum 2
 Cartesian or polar coordinate system

 Skew compensation for part alignment prior to measurement,

eliminating the need for time-consuming fixturing

 Two datums for absolute and incremental measurements
 Axis zero and preset keys for establishing datums
 Easy selection of feature measurement type using clearly marked

measure function keys:

 Points, lines, circles, distances, angles
 Skew for part alignment
 Measure Magic

 Feature measurement can include:

 Dimensional measurements of geometric part features
 Creation of features by entering dimensional data
 Construction of new features from existing features
 Applying tolerances

®

for automatic feature type identification

ND 1200 Front panel

14 1 Operation

 Number keypad with:

 Number keys for data entry
 Decimal point and +/- keys for data entry and LCD screen contrast

adjustment

 User-defined hot keys that program panel and optional remote keys

to initiate commonly used functions.

 User-defined programs made of the key-press sequences used to:

 Perform measurements
 Apply tolerances
 Report results

 Reports of measurement results printed to USB printer, sent to PC

over RS-232 connection or stored on USB drive

 User-defined programs and system settings stored on USB drive
 Speaker jack outputs for quiet or noisy environments
 Optional optical edge detection probes and enters feature data

points at light to dark transitions on the comparator screen

 Optional remote foot switch and keypad facilitate measurement

when the user is not close to the front panel

1.1 ND 1200 Overview

ND 1200 QUADRA-CHEK 15

1.2 Basic Functions of the ND 1200

Switching on the ND 1200

Switch on the ND 1200. The POWER switch is
located on the rear of the enclosure. After switching
the power on, or after a power failure, the power-up
screen will be displayed.

Press the FINISH key to advance from the power-up
screen to the DRO.

Your ND 1200 is now ready for operation and is in the Current Position
operating mode. Encoder position values will be displayed for all axes.

1.2 Basic Functions of the ND 1200

Power-up screen

DRO screen

16 1 Operation

Establishing a repeatable machine zero

If your ND 1200 was configured to establish a machine zero upon
power-up, a message will be displayed asking you to cross reference
marks or enter hard-stop axis reference positions. The machine zero is
used by the ND 1200 to apply error correction data as measurements
are performed. To establish a repeatable machine zero you must
either:

U Move the stage to have encoder reference mark crossings

recognized on each axis or

U move the stage to the hard-stop reference position and press

ENTER on each axis when no encoder reference marks are present.

If the requirement to cross reference marks is bypassed
by pressing the CANCEL soft key, error correction data
that might be stored in your ND 1200 will not be applied.

Switching off the ND 1200

Switch the ND 1200 off. The parameter settings,
error compensation tables and recorded programs
that have been saved during operation will be
retained in memory.

1.2 Basic Functions of the ND 1200

Your ND 1200 might also have been configured to retain
measurement results across power cycles

ND 1200 QUADRA-CHEK 17

Panel key descriptions

Descriptions of panel key functions are provided in the following
pages for MEASUREMENT function, COMMAND, MODE selection,
AXIS, FAST TRACK, SEND, LCD ON/OFF, and MENU keys. Soft key
functions are also described later in the next section as part of screen
and soft key layout descriptions.

MEASURE keys Function

Measure point: Press the POINT key once to

measure one point, or twice to use auto
repeat to measure a series of points. A
minimum of one data point is required to
measure a point.

Measure line: Press the LINE key once to
measure one line, or twice to use auto repeat
to measure a series of lines. A minimum of
two data points are required to measure a
line.

Measure circle: Press the CIRCLE key once
to measure one circle, or twice to use auto
repeat to measure a series of circles. A
minimum of three data points are required to

1.2 Basic Functions of the ND 1200

measure a circle.

Measure distance: Press the DISTANCE key
once to measure one distance, or twice to
use auto repeat to measure a series of
distances. Two points are required to
measure a distance.

ND 1200 Panel keys

Measure angle: Press the ANGLE key once
to measure one angle, or twice to use auto
repeat to measure a series of angles. Collect
a minimum of two data points, then press the
ENTER key on each leg of an angle.

Align part: Press the SKEW key to
compensate electronically for non-square
part alignment on the primary axis.

Use Measure Magic: Press the MEASURE
MAGIC key to automatically measure any
geometric feature or twice to measure a
series of like features. Collect the desired
points and press the FINISH key; Measure
Magic analyzes the data and determines the
feature type.

18 1 Operation

COMMAND keys Function

Enter data: Press the ENTER key to enter

points during feature measurements or to
enter values into configuration fields.
Pressing the ENTER key indicates that data
from a measurement or in a field is ready for
use.

Finish a measurement: Press the FINISH
key to complete a feature measurement.
Pressing the FINISH key a second time
returns the user to the DRO screen.

Delete data or features: Press the CANCEL
key to delete the last point entered, data in
configuration fields or any highlighted feature
from the feature list.

Quit current activity: Press the QUIT key to
abandon the current task and return to the
DRO screen or to exit the feature list.

MODE keys Function

Select unit of measure: Press the UNIT OF

MEASURE key to toggle between
millimeters and inches. The current unit of
measure is displayed in the upper right corner
of the screen.

1.2 Basic Functions of the ND 1200

Select a datum: Press the DATUM key to

toggle between datum 1 and datum 2.The
current datum number is displayed in the
upper right corner of the screen.

Select a coordinate system: Press the
COORDINATE key to toggle between

Cartesian and polar coordinate systems.

AXIS keys Function

Zero an axis: Press the axis key to the right

of the desired axis to zero the axis position
value when establishing a zero datum.

Preset an axis or axes: Press one or more
axis keys to the right of the desired axis or
axes when presetting axis position values for
a new datum.

ND 1200 QUADRA-CHEK 19

FAST TRACK keys Function

SEND key Function

Transmit measurement results: Press the

SEND key to transmit measurement data to a
computer, a USB printer or a USB memory
drive.

LCD ON/OFF key Function

Turn the LCD off or clear data: Press the

LCD ON/OFF key to toggle between LCD on

1.2 Basic Functions of the ND 1200

and LCD off, or to clear feature data, datums
and part alignments (skews).

Left frequently used function:
Press the left WIDE key to initiate
the function programmed for this
key. The factory default function for
this key is ENTER.

Right frequently used function:
Press the right WIDE key to initiate
the function programmed for this
key. The factory default function for
this key is FINISH.

MENU key Function

Display soft key menus: Press the MENU

key to display the titles of ND 1200 menus
above the soft keys. Menus include:

 Setup: Used by supervisors to configure

the operational characteristics of the
system.

 Prog: Used by operators and supervisors to

create and recall programs of recorded
measurement steps.

 Extra: Used by operators to conduct

measurements and send measurement
result data.

 Clear: Used by operators to clear

measurement data and datums.

 Edge: Used by operators and supervisors

to install, calibrate and select optical edge
detectors.

20 1 Operation

ARROW CURSOR keys Function

Navigate menus and setup screen
data fields. The up arrow cursor key is
also used to begin a feature
construction process.

1.2 Basic Functions of the ND 1200

ND 1200 QUADRA-CHEK 21

LCD screen and soft key layout

ND 1200 LCD screens display information in one of four operating
modes:

 DRO mode displays current positions of axes
 Feature evaluation mode screens can be toggled between two

displays that show all measurement results and the data cloud of
collected points

 Feature measurement mode displays feature type, points

collected and current positions of axes during measurements

 Setup mode displays ND 1200 Installation and setup screens

Soft keys change to support activities shown on the screens.

Installation and setup screens and soft keys are described
later in Chapter 2: Installation, Setup and Specifications.

DRO mode screen and soft keys

The DRO screen shows:

 Feature list of measured features on the left side
 Unit of measure, current datum and probe type in the upper right

1.2 Basic Functions of the ND 1200

corner

 The current positions of all axes
 Part alignment status: a small rectangle over the axis letter indicates

that the part is aligned to a measurement axis (a skew was

performed)

 Soft key functions for selecting a probe type and teaching

(calibrating) optical edge detection (optional)

DRO soft keys Function
Probe Toggles between crosshair and optical edge

detection probes

Teach Initiates the optical edge detection light-

calibration wizard. You will be guided through
the process by messages shown on the screen

22 1 Operation

DRO current position screen showing current axis
positions

Feature evaluation mode screens and soft keys

The feature evaluation screens can be toggled between two displays
by pressing the VIEW soft key to show:

 Feature list of measured features on the left side
 Unit of measure, current datum and probe type in the upper right

corner

 The feature type and number of the highlighted feature
 Feature position
 Geometric and dimensional values such as diameter, length or angle
 Number of data points used to define the feature
 Form error
 Parent features used if the feature was constructed
 An indication that the feature was created if applicable
 Data cloud of collected data points used to define the feature

DRO soft keys Function
Recall Displays a different feature from the feature list

by specifying its feature number.

View Toggles between the default screen showing

axis values and the screen showing data points
collected to define the feature.

Feature evaluation mode screen showing feature
values

1.2 Basic Functions of the ND 1200

Change Shows alternative fit algorithms for the current

feature type, such as LSBF (least squares best
fit) and ISO.

Zoom Changes magnification when viewing the data

Tol Displays the alternative tolerances that can be

Tolerances are discussed later in this chapter.

ND 1200 QUADRA-CHEK 23

cloud of collected data points.

Feature evaluation mode screen showing data points

applied to the current feature.

Feature measurement mode screen and soft keys

The feature measurement screen is displayed after initiating a feature
measurement by pressing a MEASUREMENT key and shows:

 Feature list of measured features on the left side
 Unit of measure, current datum and probe type in the upper right

corner

 The feature type being probed and the number of collected data

points

 The current positions of all axes

DRO soft keys Function
Probe Toggles between crosshair and optical edge

Recall Recalls the first parent feature of a new feature

Create Displays fields for entering data to create the

Const Initiates a new feature construction.

1.2 Basic Functions of the ND 1200

detection probes (available only with optical
edge detection option).

construction.

specified feature type.

Feature measurement mode screen showing feature
type and points collected

24 1 Operation

ND 1200 Menus

Press the MENU key to display menu titles over the soft
keys at the bottom of the LCD screen. Press a menu soft
key to display the corresponding menu screen. Menus
include:

SETUP menu SETUP functions

Press the SETUP menu
soft key to display the
collection of SETUP
screens used to configure
the ND 1200. Use of the
setup menu is explained
later in Chapter 2:
Installation, Setup and
Specifications.

Access to setup menu configuration data fields is
password restricted to supervisors and other technically
qualified personnel. Configuration mistakes can result in
serious measurement errors.

PROG menu PROG functions

Press the PROG soft key to
display the PROGRAMS
screen and soft keys for
program functions. Soft
keys include:

Menu titles are displayed over soft keys at the bottom
of the LCD screen

1.2 Basic Functions of the ND 1200

Record Records a program of user

Run Plays a program of

Edit Displays program steps for

Copy Copies a program to be

Delete Deletes a program.

ND 1200 QUADRA-CHEK 25

key presses that can be
played back later.

recorded key presses.

editing.

edited and saved under a
new name.

EXTRA menu EXTRA functions

Press the EXTRA soft key
to display the EXTRA pop­up menu. The EXTRA
menu is used perform
many measurement and
data transmission
functions. Highlight a
function and then press the
ENTER key. EXTRA menu
functions include:

Annot Toggles between forward

and backward annotation.

DMS/DD Toggles between the

MCS Clears datums and re-

1.2 Basic Functions of the ND 1200

MinMax Collects and stores

Preset Sets the position of one or

Preset! Recalls the last preset

Prt RS Sends current data to the

Run Runs the last program.

Send 2 Sends current X, Y data to a

display of degrees,
minutes, seconds and
decimal degrees.

establishes machine
coordinates.

minimum and maximum
values until the FINISH key
is pressed.

more axes to specified
values.

position.

RS-232 serial port.

printer, USB drive or
computer.

Send 3 Sends current X, Y, Z data

Send 4 Sends current X, Y, Z, Q

Send D Sends current diameter to

26 1 Operation

to a printer, USB drive or
computer.

data to a printer, USB drive
or computer.

a printer, USB drive or
computer.

EXTRA menu EXTRA functions
Send F Sends current form error to

a printer, USB drive or
computer.

Send L Sends current distance to a

printer, USB drive or
computer.

Send Q Sends current Q-axis value

to a printer, USB drive or
computer.

Send R Sends current radius to a

printer, USB drive or
computer.

Send X Sends current X-axis value

to a printer, USB drive or
computer.

Send Y Sends current Y-axis value

to a printer, USB drive or
computer.

Send Z Sends current Z-axis value

to a printer, USB drive or
computer.

Send < Sends current angle to a

printer, USB drive or
computer.

Time Displays the current date

and time.

1.2 Basic Functions of the ND 1200

Zero 2 Zeros X and Y axes in the

current datum.

Zero Q Zeros Q-axis protractor

CLEAR menu CLEAR functions

ND 1200 QUADRA-CHEK 27

value.

Press the clear soft key to
display soft key selections
for clearing data. Soft keys
include:

CLEAR menu CLEAR functions
Clr Ft Clears feature data from

Clr Sk Clears the part alignment

the feature list.

(skew). Clearing the skew
does not clear any datums
that have been established.

Clr All Clears feature, datum and

EDGE menu EDGE functions

part alignment data.

Press the EDGE soft key to
display edge detection soft
key functions. Soft keys
include:

1.2 Basic Functions of the ND 1200

Teach Calibrates edge detection

for typical light to dark edge
transitions.

D. Cal Calibrates edge detection

Install Installs edge detection.

X Cal Calibrates crosshair and

for fuzzy or irregular light to
dark edge transitions.

edge detector probes to
indicate identical positions.

Auto E Toggles between

automatic and manual edge
detection.

28 1 Operation

1.3 Preparing to Measure

Power-up the ND 1200

U Switch on the ND 1200. The POWER switch is located on the rear

of the enclosure. After switching the power on, or after a power
failure, the power-up screen will be displayed. See "Switching on the
ND 1200" on page 16.

U Press the FINISH key to advance from the power-up screen to the

DRO.

If your ND 1200 was configured to establish a machine zero upon
powering up, a message will be displayed asking you to cross
reference marks or specify axis references manually.

Establish machine zero

A repeatable machine zero is required if you plan to retain feature
measurement results across a power cycle or if error correction will be
applied to your measurements.

Often feature data retention and error correction are not
desired. In these cases, it is not necessary to establish a
machine zero.

To establish a repeatable machine zero:

U Move the stage to have reference mark crossings recognized on

each axis or

U move the stage to the hard-stop reference position and press

ENTER on each axis when no encoder reference marks are present.

1.3 Preparing to Measure

ND 1200 QUADRA-CHEK 29

Adjust LCD screen contrast

If necessary, adjust the LCD screen contrast using the decimal point
and +/- keys located on the numeric keypad.

U Press the DECIMAL POINT key to increase the

contrast

U Press the +/- key to decrease the contrast

Select unit of measure

U Press the UNIT OF MEASURE key to toggle between

millimeters and inches.

Select a datum

1.3 Preparing to Measure

U Press the DATUM key to toggle between Datum 1

and Datum 2.

Select a coordinate system

U Press the COORDINATE key to toggle between

Cartesian and polar coordinate systems.

30 1 Operation

Select the desired annotation

Annotation determines the number of measurement points collected
for each feature type.

 Forward annotation: Use forward annotation to require a

previously specified number of points for each feature type. When
using forward annotation, the number of required points is shown in
the top left corner of the screen. As points are entered, the number
of required points counts down. Since a fixed number of points is
required using forward annotation, the system automatically
completes the measurement and displays the feature after the last
required point is entered. It is not necessary to press the FINISH key
in forward annotation measurements to complete a measurement.

 Backward annotation: Use backward annotation to allow the

operator to determine the number of points for each feature.
Backward annotation displays the total number of points collected
in the top left corner of the screen as they are entered. It is
necessary to press the FINISH key to complete backward
annotation measurements.

Toggle between forward and backward annotation

U Press MENU/EXTRA/ANNOT/ENTER

1.3 Preparing to Measure

ND 1200 QUADRA-CHEK 31

Select a probe type

Features are probed with crosshairs or with optional optical edge
detection. Optical edge detection can be configured as manual or
automatic point entry.

Skip these probe selection instructions if your ND 1200
does not include the optical edge detection option.

Select crosshairs:

U Press the PROBE soft key if necessary to

select the crosshair probe. The crosshair
symbol will be shown in the upper right
corner of the screen.

Select an optical edge probe

1.3 Preparing to Measure

U Press the PROBE soft key if necessary to

display an optical probe symbol in the upper
right corner of the screen. The manual point
entry optical probe symbol is shown here.

U Toggle the optical probe between manual

and automatic point entry by pressing the

key sequence: MENU/EDGE/AUTO E.

Press the PROBE soft key to select a probe type

32 1 Operation

Calibrate the optical edge detector

The optical edge detector must be calibrated to correctly recognize
light to dark part edge transitions. Calibration should be performed
after startup, when the part is changed, when magnification is
changed, when measuring a part with fuzzy or irregular edges, and
when the optical system is repositioned or replaced.

Skip these calibration instructions if your ND 1200 does
not include the optical edge detection option.

Three types of calibrations can be performed:

 Teach: Teach calibration should be performed after each startup or

whenever the part or magnification level changes. Teach calibration
trains the ND 1200 to recognize the light to dark transitions on your
comparator. Any change in the comparator light conditions should
be followed by a teach calibration.

 D. Cal: Distance Calibration should be performed when measuring

parts with poorly defined edges. Perform a distance calibration to
fine tune the edge detector for fuzzy or irregular edges and for thick
parts or parts with rounded edges.

 X Cal: Cross calibration compensates for the position offset

between the crosshairs and the edge detector sensor to produce
consistent results for all measuring probes. Perform cross
calibrations each time the edge detector sensor is changed or
repositioned.

1.3 Preparing to Measure

Perform a Teach

U Press the TEACH soft key.
U Follow instructions displayed on the screen.

Perform a D. Cal

U Press MENU/EDGE/D. CAL
U Follow instructions displayed on the screen.

Perform an X Cal

U Press MENU/EDGE/X CAL
U Follow instructions displayed on the screen.

ND 1200 QUADRA-CHEK 33

Align the part to a measurement axis

Accurate measurements require the part to be perfectly aligned along
a measurement axis. Misaligned parts result in cosine measurement
errors. Use the SKEW function to convert machine coordinates to part
coordinates and compensate for part misalignment. Measure a skew
each time a new part is mounted on the measuring system.

Measure a skew line by probing a straight edge of the part on a major
measurement axis. A minimum of two points is required for a line, but
probing more points will improve accuracy.

The alignment is performed on a part edge here as an
example. Part alignments can be made on part features
other than an edge. For example, a line constructed
between the centers of two holes could be aligned to a
measurement axis if desired.

1.3 Preparing to Measure

Perform a part alignment (Skew)

The skew alignment edge or line must be oriented within
45 degrees of the measurement axis.

U Press the SKEW key.
U Probe a minimum of two points along the part edge.

In the example shown here, the part is aligned to the
X-axis by probing three points along the bottom edge
of the part.

The part could alternately have been aligned along a
vertical edge to the Y-axis.

Three points are probed to align the bottom edge of a
part to the X-axis

34 1 Operation

Establish a datum

Establish a reference datum once the part is skewed. Two datums can
be created in the ND 1200. Typically, datum 1 is a zero reference and
used as an absolute or primary datum, while datum 2 is used as an
incremental or temporary datum.

Datums can be set to zero or can be preset to specified values.
Two methods can be used to establish a datum:

 Zero or preset the X and Y axes on a point or on the center point of

a circle

 Zero or preset the X and Y axes on a point or on a center point

constructed from parent features

While the datum can be created from a probed point or from the
center point of a probed circle, it is more commonly created from a
point that has been constructed from important parent features, such
as the skew alignment line and a second part edge line. An example
of a datum created from a constructed point is shown below.

Constructions and the feature measurements necessary
for constructions are discussed in detail later in this
chapter. However, a brief example of constructions is
shown here to adequately cover the topic.

Probe skew and part edge lines for point construction

Probe a Skew alignment line along the bottom of the part and probe a
line on the left side of the part. These lines will be used to construct a
datum point.

Perform skew part alignment to the X-axis on the bottom edge

U Press the SKEW key.
U Probe 3 points along the bottom edge (points 1, 2

and 3).

U Press the FINISH key to create the skew line.

1.3 Preparing to Measure

Probe a line along the left edge

U Press the LINE key.
U Probe 3 points along the left edge (points 4, 5 and 6).
U Press the FINISH key to create the second line.

A skew is performed along the bottom and a line is
probed on the left side

The skew and left edge lines will now be shown in the feature list on
the left side of the DRO screen. The point construction using these
parent features is shown on the next page.

ND 1200 QUADRA-CHEK 35

Construct a datum point from line features

Construct a point from the skew line and the left edge line to create a
datum.

U Press the POINT key. The Probe Point screen will be

displayed.

U Press UP ARROW/ENTER to start the construction

and select the line feature (2). The screen will change
to the Construct Point screen, feature 2 will be
checked and skew line feature 1 will become
highlighted.

U Press ENTER to check feature 1.
U Press the FINISH key to complete the point

construction from the intersection of the two
checked parent line features.

1.3 Preparing to Measure

POINT key is pressed Features are selected Point is constructed

Zeroing the datum

Datums can be zeroed or preset. This example creates a zero
reference datum from a point feature.

U With the datum point highlighted in the feature list,

press the DATUM key if necessary to select the
desired datum in the upper right corner of the screen.

U Press the X and Y AXIS keys to zero the point position.

Point is highlighted Point is zeroed as datum

36 1 Operation

Presetting the datum

Datums can be zeroed or preset. This example creates a preset
reference datum from a point feature.

U With the datum point highlighted in the feature list,

press the DATUM key if necessary to select the
desired datum in the upper right corner of the screen.

U Press MENU/EXTRA/PRESET/ENTER to display the

preset screen.

U Press the desired AXIS key and enter the preset value

for the axis.

U Press another AXIS key if desired and enter the preset

value for that axis.

U Press the FINISH key to preset the datum to the

specified values.

1.3 Preparing to Measure

PRESET Selected from EXTRA menu Preset values are entered Point is preset as datum

ND 1200 QUADRA-CHEK 37

1.4 Measuring Part Features

Part features

Features are measured by probing data points that characterize the
dimensional geometry of the part. For example, several points probed
around the circumference of a circle results in numeric and graphic
representations of the circle geometry. Throughout this manual, a
measured geometry is referred to as a feature and can alternately be
displayed numerically or graphically by pressing the VIEW soft key.
There are several types of features and each has different dimensional
information. For example, a circle has a center point position and a
radius, a point has a position, and an angle has degrees.

1.4 Measuring Part Features

Feature displayed numerically Feature displayed graphically

Feature list

Each feature is added to the feature list when it is measured. The
feature list shows all features measured on the left side of the LCD
screen and is visible in DRO and measuring modes. Each feature is
identified by a number and an icon indicating its type (i.e. circle, line,
etc.). Up to 100 features can be added to the feature list. Use the
ARROW CURSOR keys to scroll through the list. Highlight the desired
feature to recall, print or send the feature data to a computer or a USB
drive. Select parent features from the feature list to construct new
features. Delete features using the CANCEL key or the LCD ON/OFF
key. In general, the user should delete old features, datums, and
skews from the feature list before each new measurement session.

38 1 Operation

Probing part features

Part features can be probed with crosshairs or with optional optical
edge detection. If optical edge detection is used, points can be
entered manually or automatically.

Probing with crosshairs

U Move the stage to position the crosshairs over the desired feature

point and press the ENTER key. The probed point will be added to
the points required for the feature.

Probing with optical edge detection

Probing with optical edge detection speeds the measurement process
and increases measurement consistency. Two general guidelines
should be followed when probing with optical edge detection:

 Move the stage to make edge crossings as close to perpendicular

as possible.

 Move the stage at slow to moderate speeds when possible. In

general, slower edge crossings are slightly more accurate.

To probe with edge detection:

Skip these probing instructions if your ND 1200 does not
include the optical edge detection option.

U Move the stage to pass the optical sensor over the edge.
U When manual point entry is used, the ND 1200 will beep when an

edge is recognized. Press the ENTER key to add the point to the
number required for the measurement.

U When automatic point entry (Auto E) is used, the ND 1200 will beep

when an edge is recognized and will add the point to the number
required for the feature measurement automatically.

1.4 Measuring Part Features

ND 1200 QUADRA-CHEK 39

Probing with Measure Magic

Measure Magic analyzes feature data collected by part probing and
automatically determines the feature type. Measure Magic supports
the following feature types in the ND 1200:

 Points
 Lines
 Circles

When Measure Magic is used, and more than the minimum number
of points required to define a feature type are collected, the feature
type can be changed manually by the user if the wrong feature type is
assigned.

To probe a feature using measure magic:

 Press the MEASURE MAGIC MEASUREMENT key.

The Probe Feature screen will be displayed. Press the
key twice to measure a series of features using auto

1.4 Measuring Part Features

repeat.

 Probe points on the desired feature and then press the

Finish key.

If the wrong feature type is shown on the screen:

 Press the CHANGE soft key. The alternative feature types will be

shown over soft keys at the bottom of the screen.

 Press the correct feature type soft key. The correct feature type will

be displayed in the feature list.

Press the CHANGE soft key Press the correct feature type soft key The correct feature type is displayed

40 1 Operation

Measuring features

The ND 1200 measures point, line, circle, distance and angle features.
To measure a feature using backward annotation (See "Select the
desired annotation" on page 31):

U Press the desired feature MEASUREMENT key
U Probe the required points
U Press the FINISH key

Auto repeat

Use auto repeat to measure several features of the same type (such
as a series of circles). Press the desired feature MEASUREMENT key
twice to activate auto repeat. For example, press the CIRCLE
MEASUREMENT key twice to measure a series of circles. When auto
repeat is selected, the Probe feature screen becomes the Probe
features screen. For example, the Probe Circle screen becomes probe
Circles screens as shown below.

1.4 Measuring Part Features

Probe Circle screen Probe Circles screen

Use auto repeat and forward annotation to speed up repetitive
measurements. For example, the measurement of a dozen circles
requires the user to press the CIRCLE MEASUREMENT key before
measuring each circle and press the FINISH key for each
measurement. The same measurements using auto repeat and
forward annotation requires the user to press the CIRCLE
MEASUREMENT key twice before and the FINISH key once after
measuring all 12 circles. Pressing the FINISH key turns off auto repeat.

Examples of measurements are shown in the next few
pages and will use crosshairs to probe points on the 2-D
demo part shipped with each ND 1200.

Examples show feature probing and measurement using
forward annotation with the factory default minimum
points probed for each feature type. The number of
required points for each feature type can be changed in
the Measure setup screen discussed later in Chapter 2:
Installation, Setup and Specifications.

ND 1200 QUADRA-CHEK 41

Measuring points

Points are the simplest features to measure. Only one point is required
to define the location of a point. A maximum of 100 points can be
probed and will be averaged by the system to measure a single point.

U Press the POINT MEASUREMENT key. The Probe

Point screen will be displayed. Press the key twice to
measure a series of points using auto repeat.

U Move the stage to position the crosshairs over the

desired point location and press the ENTER key.

U Press the FINISH key to complete the measurement.

The point position will be shown and the point feature
will be added to the feature list.

1.4 Measuring Part Features

A point is probed on the part

The point position is shown and the point feature is
added to the feature list

42 1 Operation

Measuring lines

A minimum of 2 points are required to measure a line. A maximum of
100 points can be probed and will be processed by a fit algorithm to
define the line.

U Press the LINE MEASUREMENT key. The Probe Line

screen will be displayed. Press the key twice to
measure a series of lines using auto repeat.

U Move the stage to position the crosshairs over an end

point of the line and press the ENTER key.

U Move the stage to position the crosshairs over the

other end point of the line and press the ENTER key.

U Press the FINISH key to complete the measurement.

The line position and angle will be shown and the line
feature will be added to the feature list.

U Press the CHANGE soft key to change the line fit

algorithm if desired.

Line fit algorithms include:

 LSBF: Fit determined by minimizing the sum of the squared point

deviations from the form fit.

 ISO: Fit determined by minimizing the form deviation.

A line is probed on the part

1.4 Measuring Part Features

The line position and angle are shown and the line
feature is added to the feature list

ND 1200 QUADRA-CHEK 43

Measuring circles

A minimum of 3 points are required to measure a circle. A maximum
of 100 points can be probed and will be processed by a fit algorithm to
define the circle.

U Press the CIRCLE MEASUREMENT key. The Probe

Circle screen will be displayed. Press the key twice to
measure a series of circles using auto repeat.

U Move the stage to position the crosshairs over a point

on the circumference of the circle and press the
ENTER key.

U Move the stage to position the crosshairs over two

other points evenly distributed around the
circumference, pressing the ENTER key to collect
each point.

U Press the FINISH key to complete the measurement.

The circle position and diameter will be shown and
the circle feature will be added to the feature list.

1.4 Measuring Part Features

U Press the D/R AXIS soft key to toggle the display

between Diameter and Radius if desired.

U Press the CHANGE soft key to change the circle fit

algorithm if desired.

Circle fit algorithms include:

 LSBF: Fit determined by minimizing the sum of the squared point

deviations from the form fit.

 ISO: Fit determined by minimizing the form deviation.
 Outer: Yields the biggest circle.
 Inner: Yields the smallest circle.

A circle is probed on the part

The circle position and diameter are shown and the
circle feature is added to the feature list

44 1 Operation

Measuring distances

Two points are required to measure a distance.

U Press the DISTANCE MEASUREMENT key. The

Probe Distance screen will be displayed. Press the
key twice to measure a series of distances using auto
repeat.

U Move the stage to position the crosshairs over the

first of the two points, then and press the ENTER key.

U Move the stage to position the crosshairs over the

second of the two points, and then and press the
ENTER key.

U Press the FINISH key to complete the measurement.

The X, Y and vector distances will be shown and the
distance feature will be added to the feature list.

U When a Z-axis is used, press the L/Z AXIS soft key to

toggle the display between the vector distance (L)
and the Z height if desired. Z-axis height is not used in
the calculation of vector distance.

A distance is probed on the part

1.4 Measuring Part Features

The X, Y and vector distances are shown and the
distance feature is added to the feature list

ND 1200 QUADRA-CHEK 45

Measuring angles

A minimum of 4 points evenly divided on two legs of an angle are
required to measure an angle. A maximum of 100 points can be
probed on the two angle legs. Once the minimum two points are
probed on each angle leg, additional points can be distributed between
the two legs in any proportion. For example, the first leg could be
defined by 4 points, and the second by 8.

U Press the ANGLE MEASUREMENT key. The Probe

Angle screen will be displayed. Press the key twice to
measure a series of angles using auto repeat.

U Move the stage to position the crosshairs over a

minimum of two points evenly distributed on one
angle leg, pressing the ENTER key to collect each
point.

U Press the finish key to complete the measurement of

the first leg.

U Move the stage to position the crosshairs over a

1.4 Measuring Part Features

minimum of two points evenly distributed on the
second angle leg, pressing the ENTER key to collect
each point.

U Press the FINISH key to complete the angle

measurement. The angle and angle vertex position
will be shown. The angle feature and two angle leg
features will be added to the feature list.

U Press the CHANGE soft key to change the angle type

if desired.

Slot features form an angle (

ø) on the part

Angle types include:

The two legs of an angle are probed on the part

 INCLD: Included angle (A1).
 360-A1: 360 degrees - included angle.
 180+A1: 180 degrees + included angle.
 180-A1: 180 degrees - included angle

INCLD (A1) 360 - A1 180 + A1 180 - A1

The angle and angle vertex position are shown. The
angle and angle legs are added to the feature list

46 1 Operation

1.5 Creating Part Features

Created features

It can be useful to create features that are not found on the part
geometry. Created features can be used as reference points for
inspection purposes. For example, in order to measure a feature that
is referred to a point off the part geometry, the user could create the
reference point.

Users can create points, lines, circles, distances, angles, and part
skews. Created features are the same as probed features except that
the created features are geometrically perfect, so form error and
tolerance values do not apply.

Created features are not the same as constructed features, which are
discussed in the next section of this chapter. Created features are
defined by the user. For example, to create a circle, the user defines
the location of the center point and the diameter or radius.
Constructed features are built from previously measured or created
parent features. For example, the user could construct a line between
two or more points in the feature list. Constructed features can have
form errors and tolerance values.

Creating features

The method of creating a feature is identical for all feature types. To
create a feature:

U Press the desired feature MEASUREMENT key
U Press the CREATE soft key
U Enter the required feature data
U Press the FINISH key

1.5 Creating Part Features

An example of creating a feature is shown on the next
page.

ND 1200 QUADRA-CHEK 47

Example of creating a feature

In this example, a circle is created:

U Press the feature MEASUREMENT key. In this

example, the CIRCLE MEASUREMENT key is
pressed and the Probe Circle screen is displayed.

U Press the CREATE soft key to display the Create data

entry screen. In this example, the Create Circle
screen is displayed.

U Enter the desired feature parameters. In this example,

the circle position and diameter (or radius) values are
entered into the X, Y, Z and D data fields.

U Press the FINISH key. The new feature will be shown

on the screen and added to the feature list.

1.5 Creating Part Features

CIRCLE MEASUREMENT key is pressed Circle position and diameter values are

entered

New circle is shown in the feature list

48 1 Operation

1.6 Constructing Part Features

Constructed features

New features can be constructed from probed, created, or other
constructed features from the features list. Constructions are
frequently used to perform skew alignments, set datums and
measure relationships between parent features.

Users can construct points, lines, circles, distances, angles, and part
skews. Constructed features are the same as probed features. They
can have form errors and tolerances can be applied.

If a construction is requested that does not include the
required parent features or is not supported, an error
message is displayed indicating an “Invalid construction”.

Constructing features

The method of constructing a feature is identical for all feature types.
To construct a feature:

U Press the desired feature MEASUREMENT key
U Press the CONSTR soft key or the UP ARROW CURSOR key
U Highlight a required parent feature, then press the ENTER key to

select it

U Continue highlighting and selecting parent features until all the

required features are selected

U Press the FINISH key

1.6 Constructing Part Features

An example of constructing a feature is shown on the next
page.

ND 1200 QUADRA-CHEK 49

Example of constructing a feature

In this example, a new point feature is constructed from two parent
circle features:

U Press the feature MEASUREMENT key corresponding to the

feature you want to construct. In this example, the POINT

MEASUREMENT key is pressed.

U Press the CONSTR soft key or press the up ARROW CURSOR key

to highlight the last feature in the feature list. If the last feature in

the feature list will not be one of the parent features, press the up

ARROW CURSOR key until the first parent feature is highlighted. In

this example, the first parent circle feature is at the bottom of the

feature list.

U Press the ENTER key to select the highlighted feature. A checkmark

will appear at the feature location in the list.

1.6 Constructing Part Features

POINT MEASUREMENT key is pressed First circle feature is highlighted First circle feature is selected as a parent

feature

U Continue highlighting and then selecting features until all the

required parent features are selected. In this example, the second

circle feature is highlighted and selected.

U Press the FINISH key to construct the new feature. The new feature

will be added to the feature list. In this example, a new point feature

is shown at the bottom of the feature list.

Second circle feature is highlighted Second circle feature is selected as a

parent feature

FINISH key is pressed to create new
point feature

50 1 Operation

U Press the VIEW key to show a graphic image of the feature

construction. In this example the image shows that the Int 1 point
feature was constructed at the top intersection of the two circle

circumferences.

U Press the CHANGE soft key to show alternative point features that

can be constructed from the two parent circle features.

U Press the desired construction alternative soft key to change the

feature construction type. In this example, the Mid Pt point feature
was selected, and the point is constructed at the mid point between
the two circle center points.

VIEW soft key is pressed to show
graphic image of constructed feature

CHANGE soft key is pressed to show
alternative constructions

More feature construction examples

A collection of some typical feature constructions are shown here
graphically as examples. Many more constructions are possible.
Invalid construction requests will initiate an error message.

Construction Parent features Graphic

Point Two lines: intersection

Point Line and circle: intersection

Point Two circles: intersection

Point feature type is changed from Int 1

1.6 Constructing Part Features

to Mid Pt

ND 1200 QUADRA-CHEK 51

Construction Parent features Graphic

Point Two points: mid point

Point Point and circle: mid point

Point Distance and point: offset

Point Circle: center point

1.6 Constructing Part Features

Point Line and point: perpendicular

Point Line and datum: perpendicular

Line Points: Best fit

Line Line and circle: perpendicular

Line Two lines: bisector

Line Line and distance: offset

52 1 Operation

Construction Parent features Graphic

Circle Multiple circles: best fit

Circle Circle and distance: offset

Distance Two points: point to point

Distance Circle and circle: center to center

Distance Point and line: perpendicular

1.6 Constructing Part Features

Angle Two lines: vertex

ND 1200 QUADRA-CHEK 53

1.7 Tolerancing

Feature tolerances

The following tolerances are available in the ND 1200.

Feature type To l e r a n c e

Point Bidirectional position

Point True position

1.7 Tolerancing

Line Bidirectional position

Line True position

Line Straightness

Line Perpendicularity

Line Parallelism

Line Angle

Circle Bidirectional position

Circle True position

Circle LMC: Least material condition

Circle MMC: Maximum material condition

Circle Roundness

Circle Concentricity

Circle Runout

Distance Width

Angle Angle

54 1 Operation

Applying tolerances

The method of applying tolerances is identical for all feature types. To
apply a tolerance:

U Highlight a feature in the feature list using the ARROW CURSOR

keys.

U Press the TOL soft key to display the tolerance soft keys.
U Press the soft key corresponding to the desired tolerance type, such

as runout for a circle. A new screen will be displayed containing data
fields for nominal and tolerance values.

U Enter the nominal and tolerance values and then press the FINISH

key to display the tolerance results. Press the finish key again to
return to the DRO screen.

Measurements that pass tolerance tests are indicated by a checkmark
in the tol soft key box. Measurements that fail are indicated by a
crossed circle in the Tol soft key box and by outlined characters in the
DRO screen.

1.7 Tolerancing

Passed tolerance indicated by
checkmark in TOL soft key box

An example of applying a tolerance is shown on the next
page.

ND 1200 QUADRA-CHEK 55

Failed tolerance indicated by crossed
circle in TOL soft key box and outline
characters

Example of applying a tolerance

In this example, a form tolerance (roundness) is applied to a circle
feature:

U Use the ARROW CURSOR keys to highlight the desired feature in

the feature list. In this example, the circle feature is highlighted.

U Press the TOL soft key to display the tolerance alternatives above

the soft keys at the bottom of the screen. In this example, the circle

tolerance alternatives are:

 POS (Position)

1.7 Tolerancing

 FORM

 RUNOUT

 CON (Concentricity)

U Press the soft key corresponding to the desired tolerance type to

display the data entry screen. In this example, the FORM soft key

was pressed and the data entry screen for specifying the roundness

tolerance is displayed. Initially, the tolerance data field (Tol. Zone)

contains the measured deviation from ideal roundness.

Circle feature is highlighted using
ARROW CURSOR keys

56 1 Operation

TOL soft key is pressed to display
tolerance soft keys

FORM soft key is pressed to display the
tolerance data entry screen

U Enter the desired nominal and tolerance values into the data fields

provided. In this example of circle form tolerance, only the
roundness tolerance field is provided, and a tolerance of 0.15 is
entered.

U Press the FINISH key to display the tolerance result. The tolerance

and actual values will be displayed. In this example, the tolerance
value was greater than the actual value and the tolerance passed. A
checkmark is shown to indicate a passed test.

U Press the FINISH key again to return to the DRO screen. The

checkmark is shown again in the TOL soft key box.

1.7 Tolerancing

The form tolerance is entered The FINISH soft key is pressed to display

the tolerance test result

The FINISH key is pressed to return to
the DRO screen

ND 1200 QUADRA-CHEK 57

1.8 Programming

ND 1200 programs

ND 1200 programs automate repetitive measurement and inspection
tasks. Programs are recorded sequences of measurement and other
operator key-press activities stored in the ND 1200 to be played back
later when inspecting identical parts. Any key-press activity can be
included. Programs save time and ensure greater consistency
because all parts are measured the same way.

When program recordings are run (played back) using the graphic

1.8 Programming

VIEW screen, a targeting image of part probing is displayed to assist
the operator. The targeting view displays a feature graphic showing
the next point to be probed and an arrow that represents the probe.
As the stage is moved to position the probe over the indicated point,
the arrow moves closer to the point shown on the part image.

ND 1200 programs can be:

 Recorded
 Run
 Edited
 Copied
 Deleted

Recording a program

When the program is run, the VIEW soft key is
pressed to display the targeting graphic

To record a ND 1200 program:

U Press the MENU key.
U Press the PROG soft key. The Program screen will be displayed.
U Press the RECORD soft key. The program number dialog box will be

displayed.

U Enter the desired program number and press the OK soft key.
U Perform the desired measurement and other activities that you wish

to record.

U Press the MENU key.
U Press the PROG soft key.
U Press the END REC soft key to stop recording the program. The new

program will be added to the list of programs.

U Press the FINISH key to return to the DRO screen.
U Run and test the program to verify its correctness. Edit the program

if necessary.

An example of recording a program is shown on the next
page.

58 1 Operation

Example of recording a program

In this example, a program is created to measure several features on
the 2-D demo part:

U Press the MENU soft key to display the menu soft key titles at the

bottom of the screen.

U Press the PROG soft key to display the Programs screen.
U Press the RECORD soft key to initiate the recording process and

display the program number dialog box.

U Enter the desired program number and press the OK soft key to

begin recording your activities. The DRO screen will be displayed
and a REC indication will be shown in the upper right corner of the
screen.

1.8 Programming

Menu key is pressed to show menu soft
key titles

U Perform all measurement and other inspection activities as usual.

PROG soft key is pressed to show
Programs screen

Program recording will continue in the background.

U When all part inspection activities are complete, press the MENU

soft key to display the menu soft key titles at the bottom of the
screen.

U Press the PROG soft key to display the Programs screen.
U Press the END REC soft key to stop recording and store the

program.

When recording begins, a REC indication
is shown in the upper right

When inspection is complete, the menu
key is pressed to show menu soft keys

RECORD soft key is pressed and the
program number is entered

The PROG and then END REC soft keys
are pressed to stop recording and store
the program

ND 1200 QUADRA-CHEK 59

Running a program

To run (play back) a ND 1200 program:

U Press the MENU key.
U Press the PROG soft key. The Program screen will be displayed.
U Use the ARROW CURSOR keys to highlight the desired program

number.

U Press the RUN soft key. The DRO screen will be displayed and the

program will begin running. An indication of an active recording will

be shown in the upper right corner of the screen.

U Press the VIEW soft key to show the targeting graphic screen.

1.8 Programming

Do not use the targeting graphic to perform fine
positioning of the crosshair probe. The targeting graphic is
only provided to assist rough positioning.

U Perform the indicated measurements and other activities prompted

by the program. The program will stop running and the DRO screen

will be displayed automatically when all the program steps have

been completed.

An example of running a program is shown on the next
page.

60 1 Operation

Example of running a program

In this example, the program recorded in the earlier example of
recording a program is run:

U Press the MENU soft key to display the menu soft key titles at the

bottom of the screen.

U Press the PROG soft key to display the Programs screen.
U Highlight the desired program number using the ARROW CURSOR

keys.

1.8 Programming

Menu key is pressed to show menu soft
key titles

U Press the RUN soft key to initiate the program play back and display

PROG soft key is pressed to show
Programs screen

the DRO screen.

U Press the view soft key to display the targeting graphic to assist

rough part positioning.

U Follow the program prompting messages to perform all

measurement and other inspection activities. When all the program
steps have been completed, the program will stop and the DRO
screen will be displayed.

The program begins running The targeting view is used for rough part

positioning

The desired program is selected

The program steps are complete and the
DRO screen is displayed

ND 1200 QUADRA-CHEK 61

Editing a program

Programs can be edited to change, insert, or delete program steps.
There are a variety of reasons to edit programs. A program may
contain an error or omission. For example, a feature may have been
left out or measured using the wrong reference. Part specifications
might change and editing an existing program is often faster than
creating a new program. Edit programs to:

 Expand or change a program step
 Delete a program step
 Insert a new program step

1.8 Programming

Use care when editing program steps, and store a backup
of the program first. Deleted steps cannot be restored.

To edit a program:

U Display the steps.
U Expand a step if necessary.
U Edit the program by:

 Changing a step

 Deleting a step

 Inserting a new step

U Close the edit session and save edits by pressing the FINISH key.

Displaying program steps

To display program steps:

U Press the MENU soft key to display the menu soft key titles at the

bottom of the screen.

U Press the PROG soft key to display the Programs screen.
U Highlight the desired program number using the ARROW CURSOR

keys.

U Press the EDIT soft key to display the list of program steps. A EDT

indication will be shown in the upper right corner of the screen.

Menu key is pressed to show menu soft
key titles

PROG soft key is pressed to show
Programs screen

The EDIT soft key is pressed to show the
program steps

62 1 Operation

Expanding and compressing a program steps

To expand or compress a program step:

U Use the ARROW CURSOR keys to highlight a compressed step.

Compressed steps are indicated by a + sign in a box in front of the
step.

U Press the ENTER key to toggle between expanding and

compressing the step.

1.8 Programming

A step is highlighted The ENTER key is pressed to expand the

step

The ENTER key is pressed to compress
the step

ND 1200 QUADRA-CHEK 63

Changing a program step

Program steps can be edited to change:

 Program properties
 Settings
 Tolerances

To change program steps:

U Use the ARROW CURSOR keys to highlight a step. Expand the step

if necessary.

1.8 Programming

U Press the ENTER key to cycle through the available alternatives and

select a new value for the highlighted the step.

U Press the FINISH key to change the step.
U Press the FINISH key again to leave the edit mode and return to the

programs screen.

Example of changing ND 1200 settings
In this example, ND 1200 settings will be edited to change the unit of

measure from mm to inches:
To change ND 1200 settings:

U Use the ARROW CURSOR keys to highlight the Settings step.
U Press the ENTER key to expand the Settings step.
U Use the ARROW CURSOR keys to highlight the Units step.
U Press the ENTER key to change the Units step value from mm to

inch.

U Press the FINISH key to save to change and return to the Programs

screen.

The Settings step is highlighted and
expanded

The Units step is highlighted The ENTER key is pressed to change

from mm to inch units

64 1 Operation

Example of changing program properties
In this example, program properties will be edited to change the

behavior of the program when a tolerance fails. Initially, the program
pauses when a tolerance fails; after the change, the program will not
pause:

To change program properties:

U Use the ARROW CURSOR keys to highlight the Prg Properties step.
U Press the ENTER key to expand the Prg Properties step.
U Use the ARROW CURSOR keys to highlight the Pause Tol Results

step.

U Press the NEVER soft key and then the ENTER key to change the

Pause Tol Results step value from If Fail to Never.

U Press the FINISH key to save to change and return to the Programs

screen.

1.8 Programming

The Prg Properties step is highlighted
and expanded

The Pause Tol Results step is highlighted The NEVER soft key and then ENTER

key to change from If Fail to Never

ND 1200 QUADRA-CHEK 65

Example of changing tolerances
In this example, a roundness form tolerance will be edited to be more

forgiving:
To change a tolerance:

U Use the ARROW CURSOR keys to highlight the Circle

measurement step.

U Press the TOL key to display the circle tolerance screen.
U Highlight the desired data field if necessary. In this example, the Tol.

Zone field is already highlighted.

U Enter the new tolerance value.

1.8 Programming

U Press the FINISH key to save to change and return to the Programs

screen.

The Circle measurement step is
highlighted

The Tol Zone field is highlighted The new tolerance value is entered

66 1 Operation

Deleting a program step

Program steps can be deleted to simplify programs or to remove
unwanted steps. Any program step can be deleted, including program
property and ND 1200 settings steps.

Use care when deleting program steps, and store a
backup of the program first. Deleted steps cannot be
restored.

To delete a step:

U Use the ARROW CURSOR keys to highlight the desired step.
U Press the CANCEL key.

Example of deleting a step
In this example, a probing step will be deleted from a circle

measurement:
To delete the step:

U Use the ARROW CURSOR keys to highlight the Circle

measurement step.

U Use the ARROW CURSOR keys to highlight a probing step.
U Press the CANCEL key to delete the step.
U Press the FINISH key to save to change and return to the Programs

screen.

1.8 Programming

The circle measurement is highlighted The probing step is highlighted within

the circle measurement

The CANCEL key is pressed and the
probing step is deleted

ND 1200 QUADRA-CHEK 67

Inserting new program steps

Program steps can be inserted to update programs to accommodate
part changes or to correct omissions.

To insert new steps:

U Use the ARROW CURSOR keys to highlight the desired insertion

point for the new steps. The new steps will be inserted before, not

after, the insertion point.

U Press the RECORD key. The DRO screen will be displayed in the

program record mode.

U Perform the desired measurement and other activities that you wish

to record as new steps.

1.8 Programming

U Press the MENU key.
U Press the PROG soft key.
U Press the END REC soft key to stop recording the program steps.

The new steps will be added to the list of programs.

Example of inserting new program steps
In this example, a line measurement will be inserted at the end of the

program.
To insert the steps:

U Use the ARROW CURSOR keys to position the insertion point at the

end of the program.

U Press the RECORD key to display the DRO screen in the record

mode.

U Perform the new measurement and press the FINISH key. In this

example a line is measured.

U Press MENU key/PROG soft key/END REC soft key to return to the

program list. The new measure line step will be shown.

U Press the finish key to save the program and return to the Programs

screen.

The insertion point is highlighted The new program steps are recorded The new steps are inserted

68 1 Operation

Copying a program

When similar parts will be measured, it is often quicker to copy an
existing program and edit it to accommodate the new part than to
record a new program from the beginning.

To copy a program:

U Press the MENU soft key to display the menu soft key titles at the

bottom of the screen.

U Press the PROG soft key to display the Programs screen.
U Highlight the desired program number using the ARROW CURSOR

keys.

U Press the COPY soft key.
U Enter the new program number and press the OK soft key.

The new copy of the original program can now be edited to
accommodate the new part measurement requirements.

1.8 Programming

The insertion point is highlighted The COPY soft key is pressed and the

new program number is entered

The new copy of the original program is
shown in the program list

ND 1200 QUADRA-CHEK 69

Deleting a program

When programs are no longer needed, they can be deleted to
conserve resources.

To delete a program:

U Press the MENU soft key to display the menu soft key titles at the

bottom of the screen.

U Press the PROG soft key to display the Programs screen.
U Highlight the desired program number using the ARROW CURSOR

keys.

U Press the DELETE soft key to delete the program.

1.8 Programming

Use care when deleting programs, and store a backup of
the program first. Deleted programs cannot be restored.

The programs are displayed on the
Programs screen

70 1 Operation

The program to be deleted is highlighted The DELETE soft key is pressed and the

program is deleted

Backing up programs

Programs can be backed up prior to editing or deleting them by saving
them with the ND 1200 settings file.

Backup and restore procedures should only be performed
by supervisors and other technically qualified personnel.
Program files are included with ND 1200 settings files.
Settings files often include error correction calibration data
and care must be taken to avoid using obsolete or
outdated files. More details regarding saving and loading
settings files are provided in Chapter 2: Installation and
Specifications.

To backup a program and ND 1200 settings files:

U Plug an empty USB flash drive into the USB port.
U Press the MENU soft key to display the menu soft key titles at the

bottom of the screen.

U Press the SETUP soft key to display the Setup screen menu.
U Use the ARROW CURSOR keys to highlight the Supervisor screen

and then highlight the Password field.

U Enter the supervisor password.
U Press the SAVE soft key to backup the program and ND 1200

settings files on the USB flash drive.

1.8 Programming

The MENU key is pressed to show soft
key titles

The SETUP soft key is pressed and the
setup menu is displayed

The password is entered and the
program and ND 1200 settings can be
saved

ND 1200 QUADRA-CHEK 71

1.9 Reporting

Reporting

Reports of measurement results can be sent to a USB printer or USB
flash drive over the USB port, or to a PC over the RS-232 serial port.

Report content, destination and format are specified in the

1.9 Reporting

Report types include:

Report type Report content
Display The data displayed on the DRO screen is sent as

Print, RS-232 and USB setup screens discussed in Chapter
2: Installation and Specifications.

one row for each axis.

Report All feature measurement data is sent in tabular

Tol Rpt All tolerance data is sent in tabular form. Feature

CSV All feature measurement data is sent in as comma

Tab All feature measurement data is sent in as tab

None No data are sent.

form without tolerance data.

measurement data are not sent.

separated variables without tolerance data.

separated variables without tolerance data.

Sending reports

Reports can be sent at any time. To send a report:

U Press the feature SEND key.

Reports can also be sent:

 By including the send function in a program
 When the Print setup screen is configured to send when an edge is

recognized

 When the Measure setup screen is configured to send in response

to tolerance test results

 By pressing a hot key configured in the Hot Keys setup screen to

send

72 1 Operation

1.10 Error Indications

Scale errors

Only input encoder scale errors are reported by the ND 1200. Scale
errors are indicated by the presence of graphic bars across the DRO
screen instead of numbers. Scale errors can be caused by a few
conditions shown in this table:

Possible cause Corrective action
Damaged encoder

reader head

Repair or replace the encoder.

Misaligned
encoder reader
head

Electrical noise on
the encoder input

Stage (encoder)
velocity too high

Faulty encoder
input connection

Recalibrate the reader head.

Verify that the earth ground provided by the
ND 1200 power source is in good condition
and is connected to the power system
ground.

Verify that the encoder cable is shielded
and that the shield is connected to ground
at the ND 1200 end.

Verify that the reader head is not generating
electrical noise.

Restrict stage velocity. If the velocity
required for error-free operation is slow,
recalibrate the reader head.

Repair or replace the encoder cable or seek
the assistance of your Metronics
distributor.

1.10 Error Indications

ND 1200 QUADRA-CHEK 73

1.10 Error Indications

74 1 Operation

Installation, Setup and Specifications

2.1 ND 1200 Shipment Contents

The contents of your ND 1200 shipment are described below.
Repackaging instructions are also included for return shipments for
distributors and OEM customers that are configuring a ND 1200 and
shipping it to an end-user.

Save the ND 1200 packaging materials for possible return
shipment or shipment to an end-user.

Items included with the ND 1200

The following items are shipped with the ND 1200:

 ND 1200 instrument
 Mounting stand hardware
 Power cord
 2-D demo part
 ND 1200 Quick reference guide

2.1 ND 1200 Shipment Contents

 Warranty registration card

Optional items possibly included

The following items might be shipped with your ND 1200, depending
on the options and accessories ordered at the time of purchase:

 Remote foot switch
 Remote keypad
 Optical edge detector cables and cable holder
 ND 1200 Protective cover
 QC-Wedge communication software

If any components were damaged in shipment, save the
packaging materials for inspection and contact your
shipping agent for mediation. Contact your Metronics
distributor or OEM for replacement parts.

76 2 Installation and Specifications

Repackaging the ND 1200

When shipping the ND 1200 on to an end-user, repackage all ND 1200
components in the original packaging as received from the factory.

The original packaging must be duplicated and the LCD
must be inserted face-up to prevent damage to the
screen.

It is not necessary to ship the mounting stand and
hardware with the instrument when returning the
ND 1200 for service.

 Connect the mounting screws and washer to the ND 1200

instrument.

 Replace the contents of the cardboard box insert if shipping the ND

1200 on to an end-user. The cardboard box can be empty if
returning the ND 1200 to the factory for service.

 Repackage the instrument, foam and cardboard box insert as

originally shipped from the factory. The instrument should be
oriented face-up in the carton.

 Replace the warranty card and slip sheets originally found at the top

of the carton when shipping on to an end-user. The “Before you
begin” slip sheet should be inserted last.

2.1 ND 1200 Shipment Contents

ND 1200 QUADRA-CHEK 77

2.2 Hardware Installation

The ND 1200 is easy to install in a variety of measurement
applications. This section describes how to install the ND 1200
hardware.

Assembling the mounting stand

The ND 1200 is secured to the swivel slots of the mounting stand by
a shoulder screw, a cap screw and associated washers.

Assemble the ND 1200 to the mounting stand as shown, and then
tighten the cap screw (5) and washers (3 & 4) so that the ND 1200 will
be secure when adjusted to the desired tilt position.

U Tighten the shoulder screw (1).
U Tighten the cap screw (5) and washers (3 & 4) so that the ND 1200

will be secure when adjusted to the desired tilt position.

2.2 Hardware Installation

U Adjust the ND 1200 to the desired tilt position.

Benchtop location and mounting

Rest the ND 1200 on a flat, stable surface, or bolt it to a stable surface
from the bottom using four 10/32 screws fastened in the pattern
shown at the right.

The dimensions are shown in millimeters.

Mounting stand assembly

Mounting hole pattern

78 2 Installation and Specifications

Arm mounting (optional)

Secure the arm mount adapter to the ND 1200 and bolt the adapter
and ND 1200 to the arm as shown at the right.

2.2 Hardware Installation

Optional arm mounting

ND 1200 QUADRA-CHEK 79

Connecting power

1

2

1

3

Connect the ND 1200 to power through a high-quality power surge
suppressor. Surge suppressors limit the amplitude of potentially
damaging power line transients caused by electrical machinery or
lightning, and protect the ND 1200 from most power line transients
that can corrupt system memory or damage circuits.

Do not locate the power cord where it can be walked on or will create
a tripping hazard. Connect the 3-wire power plug to only a 3-wire
grounded power outlet.

Never connect 2-wire to 3-wire adapters to the power cord
or remove the third ground wire to fit the plug into a 2-wire
electrical outlet. Modifying or overriding the third-wire
ground creates a safety hazard and should not be
permitted.

The power connector assembly includes:

2.2 Hardware Installation

1 Power switch
2 Fuse compartment
3 Power cord connector

Always disconnect the power cord from the source of AC
power before unplugging it from the ND 1200 power
connector. The AC voltage available at electrical outlets is
extremely dangerous and can cause serious injury or
death.

Power switch, fuse and connector

80 2 Installation and Specifications

Connecting encoders

1

2

3

Axis encoders are attached to interface connectors on the rear of the
ND 1200. Many encoder interfaces are available to match the wide
variety of encoders that can be used with the ND 1200. The type and
number of axis encoder connectors will vary depending on the
application. The ND 1200 shown in this photo includes connectors for
the X, Y and Q axes. Encoder inputs are specified as analog or TTL at
the time of purchase and cannot be changed in the field.

Do not locate encoder cables where they can be walked
on or will create a tripping hazard.

The encoder connector locations are:

1 X-axis
2 Y-axis
3 Z/Q-axis

To connect the encoder cables:

U Verify that the ND 1200 is off.
U Connect the axis encoders tightly to their connectors. An axis label

is provided near each connector. If the connectors include mounting
screws, do not overtighten them.

2.2 Hardware Installation

Encoder axis connectors

ND 1200 QUADRA-CHEK 81

Connecting a computer

1

2

3

Measurement result data can be sent to a computer over the RS-232
port (3) using a serial cable that does not include crossed wires. To
connect a computer:

U Verify that the ND 1200 and the computer power are off.
U Connect a computer COM port to the ND 1200 RS-232 serial port (3)

using a standard straight-through serial cable (Metronics part

number 11B12176). Make sure the cable connectors are tight, but

do not overtighten the connector screws.

U Apply power to the computer, and then the ND 1200. The ND 1200

default settings for communication over the RS-232 serial port (3)

are:

Baud rate 115,200
Word length 8 bits

2.2 Hardware Installation

Stop bits 1 bit
Parity None

U Launch the computer application that will be used to communicate

with the ND 1200, and configure the communication properties of

the COM port to match those of the ND 1200.

Connecting a headphone

Audio alerts can be sent to headphones in areas that are noisy and
make it difficult to hear, or are quiet where audio alerts might create a
disturbance.

The speaker jack (1) is located on the side of the ND 1200.
To connect headphones:

U Verify that the ND 1200 power is off. Plug the headphones into the

speaker jack (1) on the side of the enclosure.

U Make sure the headphone plug is fully inserted.

Connecting a USB printer

The ND 1200 supports certain USB printers. Printer models are
specified by Metronics at the time of purchase, or approved by
Metronics later.

The USB port (2) is located on the side of the ND 1200.
To connect the USB printer:

U Verify that the ND 1200 and printer power are off. Connect the USB

printer to the USB Type A port (2) on the side of the enclosure.

U Make sure the USB cable plug is fully inserted.

Headphone, USB and RS-232 connectors

82 2 Installation and Specifications

Connecting an optional foot switch or remote

1

2

keypad

The optional foot switch and remote keypad are connected to the
RJ-45 connector on the side of the ND 1200.

Often, only the optional foot switch or remote keypad is used.
However, two options can be connected simultaneously using a RJ-45
splitter.

The RJ-45 connector and splitter are shown here:

1 RJ-45 connector
2 RJ-45 splitter

RJ-45 splitters are available from most retail electronics
stores.

The foot switch and remote keypad can be used individually or in
combination:

 foot switch
 foot switch and remote keypad

When the foot switch and remote keypad are connected using the RJ­45 splitter, all operating functions of each device are retained.
However, the switch shares Hot Key mapping with the number keys
7 and 8 of the remote keypad. As a result, functions assigned to the
two switch contacts will also be mapped to remote keypad numbers
7 and 8.

2.2 Hardware Installation

RJ-45 connector and RJ-45 splitter

Hot keys are discussed later in this chapter under
Software setup/Hotkeys. See "Hot key assignments" on
page 118.

To connect the foot switch or remote keypad:

U Verify that the ND 1200 is off.
U Plug an RJ-45 splitter into the ND 1200 RJ-45 connector if multiple

devices will be used.

U Connect the RJ-45 plug of the devices into the RJ-45 splitter if

multiple devices will be used, or directly into the ND 1200 RJ-45
connector if only a single device will be used.

ND 1200 QUADRA-CHEK 83

Optional foot switch and remote keypad

Connecting and installing optical edge detection

2

1

The optical edge detection option reference and sensor cables are
connected to two cable jacks on the rear of the ND 1200.

The optical cable jacks are shown here:

1 Reference cable input
2 Sensor cable input

The reference cable is connected to the light reference source. The
sensor cable mounts over the comparator screen and detects light-to­dark transitions. To connect the cables:

U Verify that the ND 1200 and comparator are off.
U Connect the reference and sensor cables to the ND 1200.
U Point the comparator end of the reference cable end directly at the

comparator lamp. Consult the comparator manufacturer’s

information for specific mounting instructions.

2.2 Hardware Installation

Avoid mounting fiber-optic cables very near the lamp. High
temperatures degrade fiber-optic cable performance.
Install the cable to receive cooling air from the lamp fan if
possible.

U Connect the sensor cable to the comparator. When the sensor will

be located in front of the screen, secure the end of the sensor cable

to the comparator screen using the plexiglas cable holder provided.

Place the cable holder under the comparator’s chart clips so the

small hole in the center of the holder is positioned over an

illuminated portion of the comparator screen, and then insert the

metal tip of the sensor cable through the hole and flush against the

screen.

Reference and sensor cable inputs

Be careful not to scratch the screen with the metal tip.

Software installation of the optical edge detector is
explained later in this chapter. See "Optical edge detection
setup" on page 96.

84 2 Installation and Specifications

Reference and sensor cable inputs

Plexiglas optical sensor cable holder

2.3 Software setup

The operating parameters of the ND 1200 must be configured prior to
using it for the first time, and any time part measurement, reporting or
communication requirements change. Day to day use of the ND 1200
does not require reconfiguration of software settings.

Parameter changes made in any of the setup screens can
change the operation of the ND 1200. For this reason,
setup parameters are password-protected. Only qualified
personnel should be given password access to setup
screens. The unlocking of password-protected setup
functions is described on page 90.

Software can be configured manually using the setup menu screens,
or automatically by loading a settings file saved after a previous setup
session. Settings files are loaded from USB drives

Parameters configured in setup screens will be retained until:

 The data-backup battery is changed
 The data and settings are cleared by maintenance personnel
 Parameters are changed using the setup menu screens
 Certain software upgrades are performed
 Previously saved settings files are loaded

2.3 Software setup

ND 1200 QUADRA-CHEK 85

Setup menu

Most operating parameters of the ND 1200 are configured using
screens and data fields accessed from the setup menu. Highlighting
setup menu items on the left side of the setup screen displays the
corresponding setup parameter data fields and choice fields on the
right side of the screen.

1 Setup menu item: Setup screen name
2 Setup data field: Setup data are entered
3 Setup choice field: Setup choices are made

The setup menu is easy to use:

2.3 Software setup

U Press the MENU key and then press the SETUP soft key.
U Navigate up or down in the menu to highlight the desired menu item

using the up/down arrow cursor keys.

U Navigate from the menu (left side) to the setup fields (right side)

using the left/right ARROW CURSOR keys.

U Navigate up or down to highlight the desired data or choice field

using the up/down ARROW CURSOR keys.

U Enter setup data using the NUMERIC KEYPAD, or choose a setup

parameter choice from soft key selections or list. shown when the

field is highlighted.

U Press the FINISH key to save the entry and return to the setup

menu.

U Press the FINISH key again to return to the DRO.

An example of using the setup menu to enter the supervisor password
is shown on the next page.

Setup screen menu items, data fields and choice
fields

86 2 Installation and Specifications

Setup example: entering the supervisor password

Critical setup parameters are password-protected. Only qualified
personnel should be given password access to setup screen
parameters. In this example, the setup menu is navigated to the
Supervisor screen and the supervisor password is entered.

To enter the supervisor password:

U Press the MENU key to display the menu soft keys.
U Press the SETUP soft key to display the setup menu.
U Navigate up or down in the menu to highlight the Supervisor menu

item using the ARROW CURSOR keys.

2.3 Software setup

The MENU key pressed to display the
menu soft keys

U Navigate from the menu to the Password setup field using the right

The SETUP soft key is pressed to display
the setup menu

ARROW CURSOR key.

U Enter the supervisor password using the NUMERIC KEYPAD.

The right ARROW CURSOR key is used
to highlight the Password data field

U Press the FINISH key to save the password and return to the setup

The supervisor password is entered
using the NUMERIC KEYPAD

menu.

U Press the FINISH key to return to the DRO.

The ARROW CURSOR keys are used to
highlight the Supervisor menu item

The FINISH key is pressed to save the
password and return to the setup menu

ND 1200 QUADRA-CHEK 87

Order of setup

The ND 1200 setup software is contained on up to 18 screens,
depending on the hardware configuration. It is possible that not all the
setup screens described in this chapter are active in your system.
Disregard screen descriptions that do not apply to your ND 1200.

The initial ND 1200 setup tasks should be performed in the order listed
here. Instructions are presented in this order on subsequent pages.

Initial setup tasks Setup screens

1: Language selection and product version information About

2: Supervisor password entry and program unlocking Supervisor

2.3 Software setup

3: Encoder configuration Encoders and Misc

4. Loading settings files and startup screens (instead of manual setup) Supervisor

5: Optical edge detection setup (optional) Misc screen and Edge soft key menu

6: Stage squareness calibration Squareness

7: Error correction LEC, SLEC or NLEC screen

8: Measurement scaling for parts that expand or shrink Scale factor

9: Measurement configuration Measure

10: Display formatting Display

The additional setup tasks can be performed in any order.

Remaining setup tasks Setup screens

Hot key assignments Hot keys

Print formatting Print and Form characters screens

RS-232 Port configuration RS-232

USB port configuration USB

Audio configuration Sounds

Key repeat delay Misc

Time and date Clock

ND 1200 setup configurations can be saved on USB drives

Saving settings Setup screens

Saving settings files and ND 1200 programs Supervisor

88 2 Installation and Specifications

Language selection and product version

The About screen contains selections for changing the language of
text displayed on the screen, included in transmitted data and printed
on reports. Product software and hardware information is also
provided on the About screen.

The product software and hardware version information
will be required if technical support is required.

To select a language:

U Press MENU/SETUP to display the setup menu and highlight the

About menu item.

U Highlight the Language choice field.
U Press the LIST soft key to display the list of languages.
U Highlight the desired language and press the ENTER key.

2.3 Software setup

Highlight the About menu item Highlight the Language choice field Highlight a language and press the

ENTER key

U Press the FINISH key to save the language and return to the setup

menu.

ND 1200 QUADRA-CHEK 89

Supervisor password and program unlocking

The Supervisor screen contains the Password data field and Programs
Locking choice field.

Most setup parameters are password-protected and setup can only be
performed after the password is entered. To enter the supervisor
password:

U Press MENU/SETUP to display the setup menu and then highlight

the Supervisor menu item.

U Highlight the Password data field.
U Enter the supervisor password.

2.3 Software setup

Highlight the Supervisor menu item Highlight the Password data field Enter the password

Program edit, copy and delete functions are locked by default. To
unlock program functions:

U Highlight the Programs choice field.
U Press the UNLOCK soft key.

Highlight the Programs choice field Press the UNLOCK soft key to make

program editing available

U Press the FINISH key to save parameters and return to the setup

menu.

90 2 Installation and Specifications

Loading settings files and startup screens

The Supervisor screen contains tools for loading ND 1200
configuration settings files and OEM startup screens. Settings files
can be loaded from a USB drive when the configuration parameters
from a previous setup session were saved. This eliminates the need
to configure the ND 1200 manually using the setup screens. Settings
files also contain any ND 1200 programs and error correction data that
existed when the settings file was saved. Startup screen images can
also be loaded from the USB drive that display OEM graphics when
the ND 1200 power is turned on.

To load settings files and startup screens:

U Insert a USB drive containing the settings.bin file and startup.txt file

(optional) into the USB port.

U Press MENU/SETUP to display the setup menu and then highlight

the Supervisor menu item.

U Highlight the Password data field and enter the password.
U To load the configuration parameters (settings.bin file): press the

LOAD soft key, then follow the instructions displayed on the screen.

U To load the new OEM startup screen (startup.txt file): press the

STARTUP soft key, then follow the instructions displayed on the
screen.

2.3 Software setup

Enter the Supervisor password

U Press the FINISH key to save parameters and return to the setup

menu.

ND 1200 QUADRA-CHEK 91

Encoder configuration

The Encoders and Misc screens contain data and choice fields for
configuring the encoders.

Encoders screen

The Encoders screen configuration fields include:

 Axis selection
 Encoder resolution
 Encoder type TTL or analog)
 Reference mark selection

2.3 Software setup

 Machine zero offset (MZ Cnts)
 Reversing encoder count direction
 Units of measure

To configure encoder settings in the Encoders screen:

U Press MENU/SETUP to display the setup menu and then highlight

the Encoders menu item.

U Highlight the Axis choice field and then press a soft key to select the

desired axis.

The setup process for all axes is identical.

U Highlight the Res data field and then enter the encoder resolution in

the units shown in the Units choice field.

Encoders menu item is highlighted Press an axis soft key Enter the encoder resolution

92 2 Installation and Specifications

U Highlight the Type choice field and then press a soft key to select

the encoder type.

U Highlight the Ref Marks choice field and then press the LIST soft key

to display the reference mark choices. Highlight the required
encoder reference mark type and press the ENTER key.

Reference marks must be used if SLEC or NLEC error
correction will be performed later. Error correction is
discussed later in this chapter.

The M.Z. Cnts (Machine zero counts) data field is rarely used to specify
an offset from the machine zero position created by crossing encoder
reference marks.

Custom machine zeroes are rarely used because datums are always
established before performing measurements.

U To specify a custom machine zero, highlight the M.Z. Cnts data field

and enter the machine zero offset in machine counts as determined
by: Machine counts = DRO value/encoder resolution.

2.3 Software setup

Select the encoder type Select an encoder reference mark type

from the list

ND 1200 QUADRA-CHEK 93

Enter machine zero offset counts if
required

U Highlight the Reversed choice field and then press the YES soft key

to reverse the encoder count direction.

U Highlight the Units choice field and then press the IN or MM soft key

for inch or millimeter units of measure.

2.3 Software setup

Choose a count direction Choose a unit of measure

U Press the FINISH key to save parameters and return to the setup

menu.

94 2 Installation and Specifications

Misc screen

The Misc screen encoder configuration fields include:

 Auto DRO counts: The number of least significant DRO counts

required to refresh the DRO with new axis values.

 External axis-zero enable for X, Y, Z and Q axes. Allows axes to be

zeroed remotely from encoder zero buttons.

 Slew limit for the axes: High input slew rates resulting from rapid

input encoder motion can result in erroneous measurements.
Erroneous measurements are avoided by displaying encoder error
warnings when encoder values change at very high rates.

To configure encoder settings in the Misc screen:

U Press MENU/SETUP to display the setup menu and then highlight

the Misc menu item.

U Highlight the Auto DRO Cnts data field and enter the number of

DRO counts (axis motion) in the least significant digit position
required to automatically refresh the DRO axis values.

U Highlight the X, Y or Z External 0 choice field and then press the YES

or NO soft key to enable or disable external axis zeroing by the
remote encoder.

U Highlight the Slew Limit data field and enter the slew rate limit

(increments of resolution per second). For example, at a channel
resolution of 0.001 mm, a slew rate limit of 50,000 will result in
warning messages at encoder motion rates higher than 50 mm per
second.

2.3 Software setup

Enter Auto DRO counts Enable or disable external zeroing for all

axes

U Press the FINISH key to save parameters and return to the setup

Enter the slew rate limit in encoder
counts per second

menu.

ND 1200 QUADRA-CHEK 95

Optical edge detection setup

The Edge menu and Misc setup screen contain fields and other tools
for configuring optical edge detection.

Edge menu tools

The Edge menu contains tools for installing and calibrating optical
edge detection. To install optical edge detection:

U Turn the ND 1200 and the comparator on to check the optical light

levels.

U Press MENU/EDGE/INSTALL to display the Light Levels screen.

Two vertical bars will be shown. The left bar shows the screen

sensor light level, and the right bar shows the reference light level.

2.3 Software setup

The light levels are relative and extend from 0 to 255.

U Position the reference cable near the comparator light source to

increase the Ref value until it reaches 255, and the left vertical bar

reaches the top.

U Move the stage to position the optical sensor first over a dark area

then over an illuminated area of the screen. The SCR value should

increase from a low value to a higher value. Acceptable values can

be from 10% to 90% of the range indicated by the right vertical bar.

A mid value near 128 is ideal, but lower and higher values are

satisfactory.

Press MENU/EDGE/INSTALL to display
the Light Levels screen and vertical bars

U Press the FINISH key to return to the DRO screen.
U Calibrate the optical edge detector as described in chapter 1 (See

Position the reference cable until the
REF value is 255 and the right bar is at
the top

Positioning the sensor over an
illuminated area causes the SCR value to
increase

"Calibrate the optical edge detector" on page 33).

96 2 Installation and Specifications

Misc screen

The Misc screen contains fields for configuring:

 Optical edge (OE) time-out: The minimum allowed time in

milliseconds between the detection of two edges. This time is
specified to prevent noise from being recognized as valid edges.

 Optical edge (OE) debounce: The minimum time in milliseconds that

a light transition must be stable to result in a valid edge detection.

To configure edge detection in the Misc screen:

U Press MENU/SETUP to display the setup menu and then highlight

the Misc menu item.

U Highlight the OE Time-out (ms) data field and enter the minimum

time between valid edges in milliseconds.

U Highlight the OE Debounce (ms) data field and enter the minimum

time an edge transition must be stable in milliseconds.

2.3 Software setup

Enter OE Time-out Enter OE Debounce

U Press the FINISH key to save parameters and return to the setup

menu.

ND 1200 QUADRA-CHEK 97

Stage squareness calibration

The Squareness screen contains data and choice fields for calibrating
the squareness of the measuring system. The calibration of stage
squareness requires the use of a certified square artifact.

Squareness calibration is unnecessary if optional NLEC
error correction will be used. Error correction is discussed
later in this chapter.

To calibrate squareness:

U Align the squareness calibration artifact with the reference axis for

the squareness calibration. This axis will be the Master axis.

2.3 Software setup

U Press MENU/SETUP to display the setup menu and then highlight

the Squareness menu item.

U Highlight the Master Axis choice field and press a soft key to choose

the reference (Master) axis for squareness calibration.

U Highlight the Angle data field and press the TEACH soft key to begin

the squareness calibration.

Choose a Master Axis for the calibration Press the TEACH soft key to begin the

calibration

U Follow instructions displayed on the LCD screen to complete the

calibration.

U Press the FINISH key to save parameters and return to the setup

menu.

98 2 Installation and Specifications

Error correction

There are three error correction methods used by the ND 1200:

 LEC: Linear Error Correction
 SLEC: Segmented Linear Error Correction
 NLEC: Nonlinear Error Correction

All ND 1200 models are equipped with LEC, SLEC and NLEC. Each
method compensates for encoder and machine travel variations with
error correction coefficients. Coefficients are determined by
comparing actual measurements of a standard to the nominal values
imprinted on it.

Linear error correction (LEC) is performed in the LEC setup screen
and compensates for variations along an axis using one correction
coefficient for the entire range of motion on the axis. For example, an
LEC coefficient of 0.0002 per inch applied to a 6 inch measurement
along an axis produces a result of 6.0012 inches.

Segmented linear error correction (SLEC) is performed in the SLEC
setup screen and compensates for variations along an axis by applying
correction values to several individual segments of the measurement
range. The use of multiple segments increases the accuracy of
measurements beyond the accuracy obtained by applying a single
(average) to the entire axis. The correction starting point is mapped to
the axis machine zero MZ Offset) so that the correction coefficients
can be applied to each segment location upon power up.

Nonlinear error correction (NLEC) is performed in the NLEC setup
screen and compensates for variations in the entire measurement
plane created by two axes by applying correction values to a grid of
small areas included by the plane. The correction starting point for
NLEC is mapped to the machine zeroes of the two axes (MZ Offset)
so that the correction coefficients can be accurately applied to each
grid area location upon power up.

NLEC can be performed using one of two methods:

 By measuring points on a certified calibration grid with the target

ND 1200 system

 By loading correction data from an nlec.txt file contained on a USB

drive and created by a IK 5000, ND 1300 or ND 1200 system.

2.3 Software setup

A repeatable machine zero, established by crossing
reference marks or defining a manual hard-stop, must be
present prior to performing SLEC or NLEC procedures.

ND 1200 QUADRA-CHEK 99

Linear error correction (LEC)

LEC compensates for machine irregularities and encoder non­linearities by applying a single linear correction value to the entire
range of measurement. To apply LEC to a measurement axis:

U Verify that the crosshair probe is selected. Press the PROBE soft

key to select it if necessary.

U Press MENU/SETUP to display the setup menu and then highlight

the Scale Factor menu item.

U Verify that the Active choice field specifies NO.

When scale factors are used, they must be applied after
error corrections.

2.3 Software setup

U Highlight the SLEC menu item and verify that the Enabled choice

field specifies OFF.

U Highlight the LEC menu item and make sure that all correction

values are 1.0.

U Highlight the NLEC setup menu item and verify that the NLEC

choice field specifies OFF.

LEC can not be performed if a different error correction is
already enabled.

Verify that the Scale Factor is not active Verify that SLEC compensation is OFF Verify that NLEC compensation is OFF

U Position the standard artifact along the measurement axis.
U Align the artifact as closely as possible to the axis and then perform

a skew alignment as described in chapter 1 (see "Align the part to a

measurement axis" on page 34).

100 2 Installation and Specifications