Newall DP8 User manual

DP8 Digital Readout Display
NEWALL MEASUREMENT SYSTEMS LTD
N

Contents
Newall Measurement Systems
1
ONTENTS
1.0 Introduction
1.1 EMC and Low Voltage Compliance
1.2 Technical Specifications
2.0 Installation
2.1 Mounting
2.2 Power Supply
2.3 Connections
2.4 Switching On
3.0 User Instructions
3.1 Options
3.2 Using the Keypad
4.0 Set-Up
4.1 Set-Up Introduction
4.2 Set-Up Defaults
4.3 Set-Up Menu
5.0 Standard Functions
5.1 Absolute/Incremental
5.1.1 Using Incremental
5.1.2 Using Absolute
5.1.3 Establishing a datum
5.2 Centre Find
5.3 Digifind (Ref)
5.3.1 Using a machine marker or
workpiece marker
5.3.2 Find Absolute Zero
5.4 Sub Datums (SDM)
5.4.1 Method 1 (Teach mode)
5.4.2 Method 2 (Manual Mode)
5.4.3 Job Number
5.4.4 Editing Sub Datums and Job Number
5.5 Inch/mm
5.6 Datahold (Display Off)
5.7 Zero Approach
6.0 Mill Functions
6.1 Arc
6.2 PCD (Bolt Hole Circle)
6.3 Line Hole
6.4 Polar Co-ordinates
7.0 Lathe Functions
7.1 Tool Offsets
7.2 Taper
7.3 Summing
7.4 Vectoring
8.0 Auxiliary Output Option
8.1 Position Pulse Output
8.2 Remote Zero and Enter Inputs
9.0 Troubleshooting
10.0 Cleaning
CONTENTS

Introduction
Newall Measurement Systems 2
1.0 INTRODUCTION
The DP8 Digital Readout conforms to the relevant European standards for electromagnetic compatibility and
low voltage directive as detailed below.
BS EN 50081-2: Electromagnetic compatibility.
Generic Emission Standard - Industrial Environment
BS EN 50082-2: Electromagnetic compatibility.
Generic Immunity Standard - Industrial Environment.
BS EN 61010-1: Safety requirements for electrical equipment for
measurement, control and laboratory use.
Construction: Two part system - display/keyboard separate from DSU/Inputs
Dimension Display/Keyboard DSU
Height: 170mm (6.7in) 130mm (5.1in)
Width: 295mm (11.6in) 185mm (7.3in)
Depth: 30mm (1.2in) 60mm (2.4in)
Weight: 2.1kg (4.6lbs) 1.7kg (3.7lbs)
Operating Voltage: 115 or 230V (switch selection)
Supply Voltage Fluctuation: Not to exceed +/-15% of the operating voltage
Supply Frequency: 50 to 60 Hz
Maximum Power Consumption: 26VA
Operating Temperature: 0 to 45°C (32°F to 113°F)
Storage Temperature: -20 to 60°C (-4°F to 140°F)
Inputs: Dependant on model, two or three Spherosyn/Microsyn transducers
Resolution:
Spherosyn/Microsyn 10 5µm (0.0002in) / 10µm (0.0005in) / 20µm (0.001in) / 50µm (0.002in)
Microsyn 5 1µm (0.00005in) / 2µm(0.0001in) / 5µm (0.0002in) / 10µm (0.0005in)
Environmental Conditions: Indoor Use, IP20 (IEC 529)
Relative humidity - maximum 80% for temperatures up to 31°C (87.8°F),
decreasing linearly to 33% at 45°C (113°F).
Transient overvoltage according to INSTALLATION CATEGORY II of IEC664
POLLUTION DEGREE 2 in accordance with IEC664
NEWALL MEASUREMENT SYSTEMS LIMITED RESERVES THE RIGHT TO CHANGE SPECIFICATION
WITHOUT NOTICE
Certificate No FM36096
1.1 EMC and Low Voltage Compliance
1.2 Technical Specifications

Installation
Newall Measurement Systems
3
2.0 INSTALLATION
Select the location of the DP8 with due regard of safety and ease of operation. Keep it clear of moving parts
and coolant spray. Ensure that the natural ventilation around the digital sending unit (DSU) is not restricted.
To ensure correct operation of the DP8, it is recommended that the digital sending unit (DSU) is grounded to
the machine from the equipotential terminal. A ground strap is provided in the fitting kit. The strap should be
cut to a suitable length once the DSU had been fixed to the machine. A terminal is provided for crimping to
the ground strap. This operation should be conducted by a suitably qualified engineer. The machine must
also be grounded to a good earth point.
The DP8 can be mounted in two basic ways as shown in Figure 2.1
ack view)
Figure 2.1 - Mounting Procedures
2.1.1 Display and digital sending unit (DSU) mounted separately (Figure 2.1a)
The keypad/display unit incorporates an M10 tapped hole in the rear of the unit. The M10 hole can be used
to mount the display in any of the standard methods as shown in Figure 2.2. The M10 stud mount is
provided as standard. The swivel mount assembly (Part No. 294-37740), the DP8 mounting arm (Part No
294-40050) and the DSU mounting assembly (Part No 600-65590) are all optional items as detailed on the
price list.
(a) Mounting DSU separately (b) Mounting DSU with display
2.1 Mounting

Installation
Newall Measurement Systems 4
INSTALLATION
The DSU is normally mounted on a vertical face on the rear of the machine. The DSU facilitates the fixing in
2, 3 or 4 point location. For metric applications drill and tap an M6 hole and locate the DSU by inserting one
of the M6 bolts provided. Ensure the DSU is level, mark the next location and drill and tap the second hole.
Repeat this process for the required number of fixing locations. For those customers requiring imperial
(Inch) fittings, repeat the above process substituting 1/4 inch UNC tapped hole and bolts.
Note: The fitting kit includes both the metric and imperial fittings. The metric fittings are zinc
coated whereas the imperial fittings are black
The DSU is connected to the keypad/display via a 3.5 metre 9 pin “D” type cable. The cable can only be
connected in one direction. Once connected, secure the cable at both ends using the slotted locking
screws.
Please note, as shown in Figure 2.1, the transducer and mains leads should be positioned underneath the
DSU to avoid any ingress of coolant.
2.1.2 Display and data sending unit (DSU) mounted together (Figure 2.1b)
An optional bracket (Part No 600-65590) is available to facilitate the mounting of the DSU directly to the
keypad/display. This assembly can be mounted using the standard M10 stud, the swivel mount assembly
(Part No 294-37740), the DP8 mounting arm (Part No 294-40050) . The last three items are optional and are
detailed on the price list.
The DSU is mounted to the optional bracket by four M6 bolts. These bolts are provided with the bracket
assembly.
The bracket kit includes a 300mm 9 pin “D” type cable. This cable is to be used to connect the DSU to the
keypad/display. The 3.5 metre cable is not needed in this configuration. The cable can only be connected in
one direction. Once the sockets are located in the DSU and the keypad/display secure the slotted locking
screws.
Figure 2.2 - M10, Swivel Mount and Arm .

Installation
Newall Measurement Systems
5
INSTALLATION
BEFORE CONNECTING THE ELECTRICAL SUPPLY TO THE DIGITAL SENDING UNIT (DSU), CHECK
THAT THE VOLTAGE SELECTOR SWITCH IS CORRECTLY SET. Figure 2.3 shows the position of this
switch.
The mains supply is connected through a detachable supply cord. The counter is supplied with a cord with a
right-angle connector. If another supply cord is used, it must have fitted a IEC320, 10A, EARTHED mains
connector with a cord rated for at least 10A.
The PROTECTIVE EARTH CIRCUIT of the mains supply MUST BE CONNECTED to the protective earth
terminal of the DSU through the supply cord.
The supply cord should be secured with cable ties to ensure that it cannot drop into a hazardous position,
ie. the floor or coolant tray, when disconnected from the DSU.
The supply cord must be routed away from moving parts, swarf, coolant or sources of heat.
If a mains plug is not already fitted to the supply cord or is of the wrong type, then a suitable EARTHED plug
should be used which complies with the relevant specifications for plugs and socket-outlets.
The mains supply fuse is a 20x5mm, type T0.5A, 250V. It is not to be replaced by the operator. If the fuse
blows it is a possible indication of some significant problem with the power source. Check the supply and
wiring carefully. If the fuse is replaced, the DSU must first be disconnected from the supply by the removal
of the IEC socket from the inlet. This connector is the primary disconnect device for the equipment and must
be accessible at all times. Do not position the equipment so that it is difficult to operate the disconnect
device.
NOTE: If the equipment is used in a manner not specified by the manufacturer, the protection
provided by the equipment may be impaired.
Figure 2.3 - Connection diagram for the Digital Sending Unit (DSU)
2.2 Power Supply
Equipotential terminal for grounding the DSU to the machine. Refer to section 2.1.
Caution. Refer to section 2.2 before connection to the mains supply.

Installation
Newall Measurement Systems 6
The mains supply switch for the DP8 is mounted on the side of the DSU as shown in Figure 2.3.
When you switch on the DP8, the unit will automatically go through a brief self diagnostic routine.
During this routine, the name DP8 will be shown, then the software version number will be displayed and all
segments of the displays will be lit.
After this routine, the unit will display measurements and is ready for use.
The DP8 can be switched off via the mains switch on the DSU. Alternatively, the keypad/display can be
switched off by pressing the key. Please note that the DSU remains under power when the
key is pressed.
Figure 2.3 shows the connection sockets on the DSU. The DP8 is designed for use with Newall’s Spherosyn
and Microsyn transducers only. The transducers are connected to the DSU with Bleecon type connectors.
These connectors have a sliding sleeve that locks the connectors to their sockets.
Switch off the DSU before connecting or disconnecting the transducers. To fit the connectors into the
appropriate socket on the DSU, first align the connector and then push firmly in place. You should hear a
click confirming that the locking sleeve has engaged. To remove the connector, pull back on the connector
sleeve to disengage the locking mechanism.
The transducers and the display/keyboard are connected to the DSU at a separated extra low voltage
(SELV) level. Any additional interconnections must also be at SELV level.
CONVENTIONS USED IN THIS MANUAL
The direction of travel of an axis refers to the travel of the tool relative to the workpiece.
Keys on the keypad are signified in bold print, such as [ ENT ] for the enter key.
2.3 Transducer Connection
2.4 Switching On

User Instructions
Newall Measurement Systems
7
Standard Keys Purpose
3.0 USER INSTRUCTIONS
The DP8 is available in three models, the DP8 Mill, DP8 Lathe and the DP8 EDM. Each DP8 model is avail-
able with an optional auxiliary port. The auxiliary port is used for (i) a remote zero pendant (part number 600-
17690) and (ii) for positional output data
The keys are used as follows
Models 2 Axes 3 Axes Additional Features
DP8 Mill 33
Bolt Hole Circle (PCD) and Bolt Hole Arc mode,
Line Hole (max 999 holes), Arc contouring, Polar co-ordinates, Sub-
Datums
DP8 Lathe 33Tool Offsets,99 , Taper calculations, Internal summing,Vectoring, Sub-
Datums
On/Off (Display only, not DSU)
Select axis to enter dimension (preset)
Set the current position for the axis to zero (reset)
Clear entry values in preset mode
Enter key to confirm data entry
Switches between absolute and incremental readings
(LED indicates choice of mode)
Centre find function
Select the Digifind function
Switches between inch and millimetre display
(LED indicates choice of mode)
Numeric keypad for data entry
Selecting the required Sub-Datum number
Setting the selected Sub-Datum to zero
Insert / Delete
Scroll Previous / Scroll Next
X Y Z Z
XoYoZoZo
abs
inc
ce
12
ent
ref
in
mm
1 2 3 45
6 7 89 0
.
+
_
sdm
sdm
zero
del.
ins.
<>
3.2 Using the keypad
3.1 Options

User Instructions
Newall Measurement Systems 8
Mill Option Keys Purpose
For using the Pitch Circle Diameter (PCD) function
For using the Line Hole function
For using the ARC function
For selecting between Cartesian (x,y,z) and Polar (Length+Angle)
co-ordinates
Lathe Option Keys Purpose
For Taper calculations
For using Tool Off-Sets
Setting Tool Off-Sets
Summing function, vectoring function
R
set
1+1
DP8 Mill 2 Axes DP8 Mill 3 Axes
DP8 Lathe 2 Axes DP8 Lathe 3 Axes

Set-Up
Newall Measurement Systems
9
abs
inc
4.0 SET-UP
The DP8 digital readout display is equipped with a Set-Up Routine. The routine enables the operator to
change factory settings in order to increase efficiency and productivity. If the factory defaults are suitable,
select the NORMAL option at the end of the Routine to restore the factory defaults.
Generally, the entire Set-Up Routine is performed only one time. Changing some parameters in Set-Up may
alter datums, SDMs, tool compensations and Digifind.
DO NOT RUN SET-UP IF YOU ARE NOT PREPARED TO LOSE THIS DATA.
Set-Up is enabled while the unit is running its initial self-test, just after powering on. Press the [ ON/OFF ] on
the face of the display as the self-test is running.
The Set-Up procedure makes use of a menu system. The main menu consists of a list of options that can be
customised for your use (See Table 1). You simply press the [ <<]and [ >>]keys to scroll through this list
until you reach the option you wish to change. To change the option when selected, press [ ENT].
To exit the Set-Up routine scroll through to the quit option and press [ENT ].
If the keypad/display has been switched off by pressing the [ ON/OFF ] key rather than switching off at the
mains, it is possible to enter the Set-Up routine by pressing the [ ABS/INC ] key followed by the [ ON/OFF ]
key.
ON/OFF key
ABS/INC key
ON/OFF key This is required to complete the proper sequence as described in text
above
4.1 Set-Up Introduction

Set-Up
Newall Measurement Systems 10
Table 1 - Set-Up Defaults
FUNCTION DESCRIPTION DEFAULT SETTING MENU OPTIONS LANGUAGE Selects the language to display messages ENGLISH English/French/German/Spanish
Italian/Danish/Czech
KEY BEEP Enables the audible beep when keys are pressed on the keypad ON On/Off I/P TYPE Selects the type of transducer on each axis SPHEROSYN Spherosyn/Microsyn 5/Microsyn 10 RAD/DIA Selects radius or diameter reading for each axis RAD (DIA - X axis lathe) Rad/Dia RESOLUTION Selects the resolution to be displayed on each axis 5µm 1 / 2 / 5 / 10 / 20 / 50µm
DIRECTION Changes the direction of count for each axis 1 0 / 1 LIN COMP Enters a linear error compensation factor 1.000000 Sel Axis (Automatic or direct entry)
SDM Enables the subdatum memory function on the keypad ON On/Off POS OUT Enables the position pulse output function OFF Off/X Axis/Y Axis/Z Axis/
(Only available when the optional auxiliary port is included) All Axes
POS SET Sets the position that triggers a pulse output ALL ZERO Posit-1 / Posit-2 / Posit-3 /
(Only available when the optional auxiliary port is included) Reset / Pulse MS
ZERO APPROACH Enables zero approach function on the keypad OFF On/Off ZERO SET Enables approach window to be set 0.000 User definable window
(Selectable only if zero approach is “on”)
NORMAL Sets factory defaults for the DP8 - Quit Normal/Default QUIT Exits the Set-Up routine and saves settings to memory - MILL OPTIONS ARC Enables the arc contour function on the keypad ON On/Off PCD Enables the bolt hole circle function on the keypad ON On/Off LINE Enables line hole function on keypad ON On/Off POLAR Enables line polar co-ordinate function on the keypad ON On/Off LATHE OPTIONS TOOL Enables tool offset compensation ON On/Off SUMMING Enables summing of axes on the keypad OFF Off/ X+Zl/ Z+Zl/ Vectored
TAPER Enables Taper function on the keypad. ON On/Off
4.2 Set-Up Defaults

Set-Up
Newall Measurement Systems
11
The I/P (Input) Type function allows the operator to specify
the type of transducer connected to each axis. The DP8
reads Newall's Spherosyn, Microsyn 10 or Microsyn 5
Transducers.
SEL AXIS
Options: SPHEroSn
uSn 10
uSn 5
ent
I/P TYPE
ent
Scroll through available options for each
axis using the (AXIS) key, once all axes
read the desired transducer type, select
with [ENT]
X
Y
Z
>
IMPORTANT:
The input type selected for each axis must match the
transducer connected to that axis. The DP8 will give
incorrect readings if the I/P Type does not match the
transducer installed.
(d) I/P Type
The Set-Up procedure can only entered by pressing the
[ON/OFF] during the power on sequence or by turning the
display off using [ON/OFF] and then pressing [ABS/INC]
before pressing [ON/OFF] again.
When you have entered the Set-Up routine, the letters
‘SET-UP’ appear in the top axis display.
Press the [ > ] key to move to the next menu option.
SET-UP
abs
inc
>
ENGLISH
Options: ENGLISH FRANCAIS
DEUTSCH ITALIANO
ESPANOL DANSK
CESKY
ent
LANGUAGE
BEEP O N >
Options: BEEP O N
BEEP OFF
ent
KEY BEEP
ent
>
Scroll through the available options using
the arrow keys and select the desired
language mode with [ENT]
Toggle between Beep On and Beep Off
using the arrow keys and select desired
mode with [ENT]
>ent
>
(a) Set-Up
(b) Language
(c) Key Beep
4.3 Set-Up Menu
Press the [ > ] key to move to the next menu option.
Press the [ > ] key to move to the next menu option.
Press the [ > ] key to move to the next menu option.

Set-Up
Newall Measurement Systems 12
ET-UP
The Radius/Diameter function allows the operator to
display actual (radius) or twice-actual (diameter) measure-
ments for each axis. This function is generally used in
turning applications, such as the cross travel on a lathe.
SEL. AXIS
Options: RAD
DIA
RAD/DIA
The Resolution function allows the operator to determine
the resolution for each axis.
SEL. AXIS
Options: 0.001mm (0.00005 )
0.002mm (0.0001 )
0.005mm (0.0002 )
0.010mm (0.0005 )
0.020mm (0.002 )
0.050mm (0.005 )
RESOLUTION
Toggle between Radius and Diameter using
the (AXIS) keys and select desired mode
with [ENT]
Scroll through available options for each
axis using the (AXIS) key, once all axes
read the desired resolution, select with
[ENT]
ent
ent
X
Y
Z
>
ent
ent
X
Y
Z
>
Direction allows the operator to change the direction of
travel for each axis. Changing the setting will reverse the
current direction.
EXAMPLE:
If the current setting is 0 and the travel is positive from
right to left, changing the setting to 1 will reverse the
direction to measure positive from left to right.
SEL. AXIS
Options: 0
1
ent
DIRECTION
ent
Toggle between 0 and 1 for each axis using
the (AXIS) key. When all axes read the
desired direction, select with [ENT]
X
Y
Z
>
IMPORTANT:
The Resolution available for each axis depends upon the
I/P (Input) Type established for that axis.
IMPORTANT:
The 0.001 mm (0.00005") resolution is only available
in Radius mode.
(e) Radius / Diameter
(f) Resolution
(g) Direction
Press the [ > ] key to move to the next menu option.
Press the [ > ] key to move to the next menu option.
>
Press the [ > ] key to move to the next menu option.
Linear Error Compensation allows the operator to apply a
constant correction factor to all measurements displayed.
Linear error may occur if the axis of the machine is not
running perfectly parallel to the scale (cosine error) or if the
machine is moving in an arc (Abbé errors). The causes
may be:
1. Machine wear.
2. Deflection of the machine due to weight acting on an
overhanging section.
3. Misalignment of the scale due to poor installation.
SEL. AXIS
LINEAR COMP
Select the axis to be compensated using
the axis keys
Continued overleaf...
ent
X
Y
Z
(h) Linear Error Compensation

Set-Up
Newall Measurement Systems
13
Setting ARC (Arc Contouring) ON enables the [ ARC ] key
on the keypad. If ARC OFF is set, the [ ARC ] function on
the keypad is disabled.
ARC is explained further in the DP8 Mill Section, See
Section 6.0 of this manual.
Press the [ > ] key to move to the next menu option.
ARC ON
Options: ARC ON
ARC OFF
ARC
Toggle between (ARC ON) and (ARC
OFF) using the arrow keys and select
desired mode with (ENT).
ent
>ent
>
(j) Arc Contouring (DP8 MILL VERSION ONLY)
SDM (Sub Datum Memory or Stored Dimension Memory)
ON enables the [SDM] function key on the keypad. If SDM
OFF is set, the function key on the keypad is disabled.
SDM is explained further in the Sub Datums Section, See
Section 5.4 of this manual.
S
Press the [ > ] key to move to the next menu option.
SDM ON
Options: ON
OFF
SDM
Toggle between (SDM ON) and (SDM
OFF) using the arrow keys and select
desired mode with (ENT.)
ent
>ent
>
The further away the scale is mounted from the centre line
of the workpiece, the greater is the potential for linear error.
Linear Error Compensation is expressed as a multiplier,
which is displayed for each axis when LIN COMP is
selected. A factor of 1.000000 indicates no compensation.
True or standard distance moved
The compensation factor is: Measured distance
A gauge block, standard bar or laser measurement should
be used as the standard against which the displayed
movement is compared.
ZERO
Move the machine to the zero position
of the standard against which the axis is
being compared and zero the axis with
the zero key. Move the machine a
known distance as determined by the
standard and enter that value.
The new compensation factor is auto-
matically calculated and displayed.
ent
Xo
Yo
Zo
>
IMPORTANT:
All measurements will be adjusted according to
the compensation factor entered for each axis.
To disable the adjustment, enter a Linear Error
Compensation factor of one (1.000000).
(i) SDM (Sub Datum Memory / Stored Dimension Memory)
Press the [ > ] key to move to the next menu option.
STANDARD 2 0
Alternatively, the factor may be directly
entered. When (ZERO) is displayed,
use the arrow keys to switch to (ENT
COMP)
Load the required factor.
Use this method to cancel a Linear Error
Compensation factor. Enter a factor of
1.000000. Press (ENT) to accept.
ent
E N T. COMP
0 5
>
. 01

Set-Up
Newall Measurement Systems 14
Setting PCD (Bolt Hole Circle) ON enables the [PCD] func-
tion key on the keypad. If PCD OFF is set, the [PCD] func-
tion on the keypad is disabled.
PCD is explained further in the DP8 Mill Section See Section
6.0 of this manual.
Press the [ > ] key to move to the next menu option.
PCD ON
Options: PCD ON
PCD OFF
PCD
Toggle between (PCD ON) and (PCD OFF
)using the arrow keys and select desired
mode with (ENT).
ent
>ent
>
Setting LINE (Line Hole Tool) ON enables the [LINE] key
on the keypad. If LINE OFF is set, the [LINE] function on
the keypad is disabled.
Line Hole is explained further in the DP8 Mill Section, See
Section 6.0 of this manual.
Press the [ > ] key to move to the next menu option.
LINE ON
Options: LINE ON
LINE OFF
LINE
Toggle between (LINE ON) and (LINE
OFF) using the arrow keys and select
desired mode with (ENT).
ent
>ent
>
Setting POLAR (Polar Co-ordinates) ON enables the
[ POLAR ] key on the keypad. If OFF is set, the [POLAR]
function on the keypad is disabled.
Polar Co-ordinates are explained further in the DP8 Mill
Section, See Section 6.0 of this manual.
Press the [ > ] key to move to the next menu option.
POLAR ON
Options: POLAR ON
POLAR OFF
POLAR
Toggle between (POLAR ON) and
(POLAR OFF) using the arrow keys and
select desired mode with (ENT).
ent
>ent
>
(k) PCD / Bolt Hole Circle (DP8 MILL VERSION ONLY)
(l) Line Hole Tool (DP8 MILL VERSION ONLY)
(m) Polar Co-ordinates (DP8 MILL VERSION ONLY)
Setting TOOL (Tool Offsets) ON enables the TOOL keys
on the keypad. If TOOL OFF is set, the [TOOL] function
on the keypad is disabled.
Tool Offsets are explained further in the DP8 Lathe
Section, See Section 7.0 of this manual.
Press the [ > ] key to move to the next menu option.
TOOL O N
Options: TOOL O N
TOOL OFF
TOOL
Toggle between (TOOL ON) and (TOOL
OFF) using the arrow keys and select
desired mode with (ENT).
ent
>ent
>
(n) Tool Offset Compensation (DP8 LATHE VERSION ONLY)

Set-Up
Newall Measurement Systems
15
Zero approach function can be set ON or OFF.
When Zero Approach is ON, the leftmost character of the
axis display flashes when the position is within a defined
envelope. The flash rate increases as zero is approached.
Press the [ > ] key to move to the next menu option.
ZERO ON
Options: ZERO ON
ZERO OFF
ZERO A P P
Toggle between (ZERO ON) and (ZERO
OFF) using the arrow keys and select
desired mode with (ENT).
ent
>ent
>
Setting a summing option enables the [SUMMING] key
[ 1+1 ] on the keypad. If SUMMING OFF is set, the
[SUMMING] function on the keypad is disabled.
The Summing function is explained further in the DP8
Lathe Section (See Section 7.0) of this manual.
Press the [ > ] key to move to the next menu option.
VECTORED
Options: X + Z i
Z + Z i
VECTORED
OFF
SUMMING
Toggle between the options using the arrow
keys and select desired mode with (ENT).
ent
>ent
>
Setting TAPER ON enables the TAPER key on the keypad.
If TAPER OFF is set, the TAPER function on the keypad is
disabled.
The Taper function is explained further in the DP8 Lathe
Section (See Section 7.0) of this manual.
Press the [ > ] key to move to the next menu option.
TAPER ON
Options: TAPER ON
TAPER OFF
TAPER
Toggle between (TAPER ON) and (TAPER
OFF) using the arrow keys and select
desired mode with (ENT).
ent
>ent
>
(o) Summing (DP8 3 AXES LATHE VERSION ONLY)
(p) Taper (DP8 LATHE VERSION ONLY)
(q) Zero Approach
If Zero Approach has been selected as ON, then Zero Set
appears as the next “Set-Up” option.
The example refers to a 3 Axis Lathe. For a DP8 Mill the
axis would be [ X ],[ Y ], [ Z ].
The maximum envelope width is 2500mm (99”).
Press the [ > ] key to move to the next menu option.
SEL AXIS
ZERO SET
Enter the Zero Set window by selecting
the axis and entering the required value.
Entering “0” omits the approach warning
from that axis
ent
>ent
>
(r) Zero Set
2.000
2.500
0.000
X
Z
Zl
2ent
ent
2
ent
0
. 5

Set-Up
Newall Measurement Systems 16
SET-UP
Normal returns all the Set-Up Options to the original
factory settings (Except language setting).
DEFAULT
Options: DEFAULT
QUIT NORMAL
NORMAL
Toggle between Default and Quit Normal
using the arrow keys and select desired
mode with [ENT]
ent
>ent
>
WARNING!
Selecting DEFAULT will cancel all changes made
during set-up. The DP8 will return to the original
factory settings. Select QUIT NORMAL to leave
the settings unchanged.
Quit exits the Set-Up procedure and returns the DP8 to
operational use.
Returns to normal operating mode.
QUIT
QUIT ent
The Position Set function is only available on DSU’s which
have been fitted with the optional auxiliary output.
The function allows the operator to set parameters for
each axis specified as output during the Position Pulse
Output Set-Up.
Press the [ > ] key to move to the next menu option.
POSIT - 1
Options: POSIT-1 RESET
POSIT-2 PULSE MS
POSIT-3
POS SET
Scroll through available settings using the
arrow key, Load the relevant axes with the
required data.
ent
>ent
>
The Position Pulse Output function is only available on
DSU’s which have been fitted with the optional auxiliary
output.
The function provides the operator with a way to control
external devices such as relays or PLCs using the DP8.
Setting Position Pulse Output to X AXIS, Y AXIS, Z AXIS
or ALL AXES activates the feature for the selected axis.
NOTE: For the Lathe version, Y AXIS refers to the Z
AXIS and the Z AXIS refers to the Zl AXIS.
Press the [ > ] key to move to the next menu option.
ALL AXES
Options: OFF
XAXIS
Y AXIS
ZAXIS
ALL AXES
POS OUT
Scroll through available options using the
arrow keys and select the desired axis
with (ENT).
ent
ent
>
(s) Position Pulse Output (Auxiliary Option only)
(t) Position Set (Auxiliary Option only)
(u) Reset to Original Factory Settings
(v) Quit Set-Up
IMPORTANT!
This is only available with the optional auxiliary version
and is detailed in Section 8.0
IMPORTANT!
This is only available with the optional auxiliary version
and is detailed in Section 8.0

Standard Functions
Newall Measurement Systems
17
STANDARD FUNCTIONS
5.0 STANDARD FUNCTIONS
5.1.1 Using Incremental
When the DP8 is set to incremental mode, it can be
used to display each new position relative to the last position.
This is also known as point-to-point use.
On setting to incremental you can reset each axis by
pressing [ Xo ] [ Yo ] or [ Zo ].
As an alternative to resetting the axes, you can enter the coordinates relative to the current incremental
position. If done in a negative sense, the operator can move to “0.000” which may save a great deal of
machining time.
Each time you switch to incremental mode, the DP8 will display the position relative to the last reset
position while in the incremental mode.
5.1.2 Using Absolute
When the DP8 is set to absolute mode it will display the
position relative to an established datum point.
5.1.3 Establishing the Datum
When you reset the display in absolute mode, you are setting the current position of your machine as your
datum point. All absolute positions will be measured relative to this datum.
To set the datum, position the machine at the point you intend to establish the datum and then reset any or
all axes, while in the absolute mode.
The diagram below is used in the following example to show Absolute and Incremental modes.
A
B
C
50
100
200
30
30
150
300
30 70 40 50
30 100
140
190
5.1 Absolute/Incremental abs
inc
50
(0,0)
Y
X

Standard Functions
Newall Measurement Systems 18
STANDARD FUNCTIONS
Set absolute zero at the lower left corner of the part
0.0000
ABS
0.0000
Xo
abs
inc
Zo
Move to the first position in ABS (Hole A).
30.000
ABS
30.000
Switch to Incremental and Zero the display
0.000
INC
0.000
Move to the second position in ABS (Hole B).
150.000
ABS
100.000
abs
inc
Make an Incremental move to Hole C.
0.000
INC
50.000
Press the [ ABS/INC ] key to return the ABS mode.
150.000
ABS
150.000
abs
inc
X
Y
Xo
Yo
X
Y
X
Y
X
Y
abs
inc
X
Y
Using the DP8 display in the manner given above can save considerable time as the operator can
avoid time consuming math calculations.

Standard Functions
1Newall Measurement Systems
19
STANDARD FUNCTIONS
ref
12
Centre Find halves the dimension displayed for any or all axes selected. You can use Centre Find in either
absolute or incremental mode. The keystrokes are the same in either case.
The DP8 comes equipped with Digifind, a feature unique to Newall digital readout products. Digifind elimi-
nates the risk of losing your position and datum Set-Up. With Digifind, precise Set-Up of a workpiece is done
only one time.
When the DP8 is powered on, it displays the position at power off, compensated for any movement of a
Spherosyn transducer up to 0.2500" (6mm) and a Microsyn transducer up to 0.1000" (2.5mm) in either direc-
tion since the unit was last used. This applies whether the DP8 was switched off intentionally or accidentally,
i.e., a power failure. If the machine has moved beyond 0.2500" (6mm) - Spherosyn [0.1000" (2.5mm) -
Microsyn], Digifind allows a quick means to find the datum if lost. The DP8 will maintain the position for at
least 30 days, the life of the battery back-up.
There are two ways to use Digifind:
1. In conjunction with a machine or workpiece marker;
2. To find the last datum (absolute zero).
5.3.1 Using a Machine or Workpiece Marker
A mark must be made on both a stationary part and moving part of the machine. The marks must be aligned
and will serve as the machine "home" position. For example, the mark could be on the reader head and mill
table, or a scribed line on the lathe way and a corresponding line on the carriage. The mark must be indeli-
ble, and it must allow the operator to move the machine to within a 0.2500" (6 mm) -Spherosyn [0.1000"
(2.5mm) - Microsyn ] band around the mark at any time.
Alternatively, you can use a convenient reference point on the workpiece. This could be the datum position
itself or any other convenient point. The point can be highlighted with a marker for ease. The reference point
must allow the operator to position the machine to within a 0.2500" (6 mm) -Spherosyn [0.1000" (2.5mm) -
Microsyn] band around the mark.
In the following example, Centre Find is being used on the
X axis to find the centre point of a workpiece that is
100mm wide.
In either absolute mode or incremental mode, once you
have used Centre Find you can locate to the centre point
by moving until the display is at 0.000.
NOTE: If you are in absolute mode, remember that
using centre find will set the datum to the
centre point.
0.000
1/2 A X ?
100.000
Locate to your first position (one edge of
your workpiece) and zero the axis.
XO
X12
or
X
12
Use Centre Find to locate the centre point.
Locate/move to the second position (the
other edge of the workpiece)
50.000
5.3 Digifind
5.2 Centre Find
Move until display reads 0.000. At that point
you will locate the center of the port