HEIDENHAIN ND 1200 User Manual

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Operating Instructions

ND 1200 QUADRA-CHEK

Software Version 2.16

English (en) 4/2009

ND 1200 Introduction

1LCD screen

2Soft keys

3Measurement function keys

4Axis keys

5Mode selection keys

6Command keys

7Menu key

8Arrow cursor keys

9Fast track keys

10Numeric keypad

11Send key

12LCD 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

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.

Preface

ND 1200 rear panel

1Serial number label

2Power switch

3Power cord connector and fuse holder

4Power ground access

5Measurement axis connectors

6RS-232 serial port connector

7Optical reference cable connector

8Optical sensor cable connector

9Not supported in the ND 1200

10Tilt base mechanical tightness adjustment

11Electrical Ratings label

ND 1200 side panel

1Speaker/headset jack

2USB Type A connector

3RJ-45 Foot switch/hand switch/keypad connector

ND 1200 QUADRA-CHEK

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.

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

Preface

1 Operation .....

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

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

.....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

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

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

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

ND 1200 Front panel

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® for automatic feature type identification

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

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

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.

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:

UMove the stage to have encoder reference mark crossings recognized on each axis or

Umove 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.

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

1.2 Basic Functions of the ND 1200

ND 1200 QUADRA-CHEK

1.2 Basic Functions of the ND 1200

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 ND 1200 Panel keys 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 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.

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.

	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.

1.2 Basic Functions of the ND 1200

ND 1200 QUADRA-CHEK

1.2 Basic Functions of the ND 1200

FAST TRACK keys	Function
	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.


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


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

1.2 Basic Functions of the ND 1200

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 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

DRO current position screen showing current axis positions

22	1 Operation

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

Feature evaluation mode screen showing feature values

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.

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
	cloud of collected data points.
		Feature evaluation mode screen showing data points
Tol
	Displays the alternative tolerances that can be
	applied to the current feature.

Tolerances are discussed later in this chapter.

1.2 Basic Functions of the ND 1200

ND 1200 QUADRA-CHEK

1.2 Basic Functions of the ND 1200

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

Recall	Recalls the first parent feature of a new feature
	construction.

Create	Displays fields for entering data to create the
	specified feature type.

Const	Initiates a new feature construction.

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
	key presses that can be
	played back later.

Run	Plays a program of
	recorded key presses.

Edit	Displays program steps for
	editing.

Copy	Copies a program to be
	edited and saved under a
	new name.

Delete	Deletes a program.

ND 1200 QUADRA-CHEK

1.2 Basic Functions of the ND 1200

EXTRA menu	EXTRA functions
	Press the EXTRA soft key
	to display the EXTRA pop-
	up 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
	display of degrees,
	minutes, seconds and
	decimal degrees.

MCS	Clears datums and re-
	establishes machine
	coordinates.

MinMax	Collects and stores
	minimum and maximum
	values until the FINISH key
	is pressed.

Preset	Sets the position of one or
	more axes to specified
	values.

Preset!	Recalls the last preset
	position.

Prt RS	Sends current data to the
	RS-232 serial port.

Run	Runs the last program.

Send 2	Sends current X, Y data to a
	printer, USB drive or
	computer.

Send 3	Sends current X, Y, Z data
	to a printer, USB drive or
	computer.

Send 4	Sends current X, Y, Z, Q
	data to a printer, USB drive
	or computer.

Send D	Sends current diameter to
	a printer, USB drive or
	computer.

26	1 Operation

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.

Zero 2	Zeros X and Y axes in the
	current datum.

Zero Q	Zeros Q-axis protractor
	value.


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

1.2 Basic Functions of the ND 1200

ND 1200 QUADRA-CHEK

1.2 Basic Functions of the ND 1200

CLEAR menu	CLEAR functions
Clr Ft	Clears feature data from
	the feature list.

Clr Sk	Clears the part alignment
	(skew). Clearing the skew
	does not clear any datums
	that have been established.

Clr All	Clears feature, datum and
	part alignment data.

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

Teach	Calibrates edge detection
	for typical light to dark edge
	transitions.

D. Cal	Calibrates edge detection
	for fuzzy or irregular light to
	dark edge transitions.

Install	Installs edge detection.

X Cal	Calibrates crosshair and
	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

USwitch 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.

UPress 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:

UMove the stage to have reference mark crossings recognized on each axis or

Umove 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

1.3 Preparing to Measure

Adjust LCD screen contrast

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

UPress the DECIMAL POINT key to increase the contrast

UPress the +/- key to decrease the contrast

Select unit of measure

UPress the UNIT OF MEASURE key to toggle between millimeters and inches.

Select a datum

UPress the DATUM key to toggle between Datum 1 and Datum 2.

Select a coordinate system

UPress the COORDINATE key to toggle between Cartesian and polar coordinate systems.

30	1 Operation

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