Newall DPG2000 Instruction Manual

INSTALLATION/USER
MANUAL
DPG2000
DIGITAL READOUT
SYSTEM
Newall Measurement Systems

CONTENTS
1. INTRODUCTION
1.1 EMC and Low Voltage Compliance
1.2 Technical Specifications
2. INSTALLATION
2.1 Mounting
2.2 Power Supply
2.3 Transducer Connections
2.4 Switching On
3. SET-UP
3.1 Sleep/Datahold
3.2 Input Type
3.3 Direction
3.4 Radius/Diameter
3.5 Linear Error Compensation
3.5.1 Calculating Linear Error Compensation
4. USER INSTRUCTIONS
4.1 Using the Keypad
5. OPERATING FUNCTIONS
5.1 Using Incremental
5.2 Using Absolute
5.3 The Digifind Function
5.4 Inch/Millimeter Conversions
5.5 Center Find
5.6 Datahold Function
5.7 Selecting An Axis Resolution
6. TROUBLESHOOTING
7. CLEANING
Contents
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Introduction
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1.0 INTRODUCTION
1.1 EMC and Low Voltage Compliance
The DPG2000 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.
1.2 Technical Specifications
Dimensions:
Height: 140mm (5.5in)
Width: 240mm (9.5in)
Depth: 80mm (3.2in)
Weight: 2.5kg (5.5lbs)
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: 18VA
Operating Temperature: 0 to 45°C
Storage Temperature: -20 to 70°C
Transducer Inputs: Dependant on model, one, two or three Spherosyn/Microsyn transducers
Selectable Resolutions:
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 decreasing
linearly to 33% at 45°C
Transient overvoltage according to INSTALLATION CATEGORY II of IEC664
POLLUTION DEGREE 2 in accordance with IEC664
Newall Measurement Systems reserves the right to change specifications without notice.
Certificate No FM36096
ISO 9001

2.2 Power Supply
BEFORE CONNECTING THE ELECTRICAL SUPPLY TO THE CABINET, CHECK THAT THE VOLTAGE
SELECTOR SWITCH IS CORRECTLY SET. Figure 1.2 shows the position of this switch.
The mains supply is connected through a detachable supply cord. The cabinet is supplied with a cord fitted
with a right-angled connector. If another supply cord is to be used, it must have a IEC320, 10A, EARTHED
mains connector with a cord rated for at least 10A.
2.0 INSTALLATION
2.1 Mounting
The DPG2000 is supplied with a fixing kit consisting of a M10 stud, nut and washers. Figure 1.1 shows the
use of this kit in conjunction with an optional mounting arm (Part No: 294-35670).
Be sure that the mounting arrangements are secure as the operator will need to apply pressure to the front
panel when using the keypad.
An optional mounting assembly (Part no: 294-37740) is available which allows for tilt and rotation of the
cabinet.
Select the location of the DPG2000 with due regard to safety and ease of operation. Keep clear of moving
parts and coolant spray. Ensure that the natural ventilation around the cabinet is not restricted.
To ensure correct operation of the DPG2000, it is recommended that the case is grounded to the machine.
Use a wire or strap of a least 1.5mm2(16 AWG) from the cabinet equipotential terminal, (Figure 1.2), to a
suitable point on the machine body. The wire should be as short as possible. The machine must also be
properly grounded to a good earth point.
Installation
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Mounting Arm
Figure 1.1 Standard Fixing with Optional Mounting Arm

Installation
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Figure 1.2 Connection Diagram
The PROTECTIVE EARTH CIRCUIT of the mains supply MUST BE CONNECTED to the protective earth
terminal of the cabinet through the supply cord.
The supply cord should be secured to the mounting arm or pillar with cable ties to ensure that it cannot drop
into a hazardous position when disconnected from the cabinet.
The power supply cord must be routed away from moving parts, swarf, coolant or sources of heat.
Input connectors 1,2 or 3
according to model
Cabinet equipotential terminal
for grounding to machine
Mains supply fuse
Not to be replaced by the operator
Disconnect mains supply before replacing
IEC inlet (mains supply)
Mains voltage selector switch
Mains supply switch

Installation
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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 an indication of some significant problem with the power source. Check the supply and wiring
carefully. Before replacing the fuse, the cabinet must first be disconnected from the supply by the removal of
the IEC socket from the inlet. Do not position the equipment so that it is difficult to disconnect the mains
supply.
NOTE: If the equipment is used in a manner not specified by the manufacturer, the protection
provided by the equipment may be impaired.
2.3 Transducer Connections
Figure 1.2 shows the connection sockets at the back of the DPG2000. The DPG2000 is designed for use
with Newall’s Spherosyn and Microsyn transducers only. The transducers are connected to the DPG2000
with Bleecon type connectors. These connectors have a sliding sleeve that locks the connectors into their
sockets.
Switch off the DPG2000 before connecting, or disconnecting the transducers. To fit the connectors into the
appropriate socket at the back of the cabinet, 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 digital readouts are connected at a separated extra low voltage (SELV) level. Any
additional interconnections must also be at SELV level.
2.4 Switching On
The mains supply switch for the DPG2000 is mounted on the back of the cabinet as shown in Figure 1.2.
When you switch on the DPG2000 the cabinet will automatically go through a brief self diagnostic routine.
During this routine, the name DPG2000 will be shown, then the software version number will be displayed
and finally, all segments of the displays will be lit.
After this routine, the DPG2000 is ready for use.
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.

Set-Up
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3.0 SET-UP
The Set-Up procedure allows you to change the main settings for the DPG2000. For normal use, you will
find that you only need to perform the Set-Up procedure once, and it is possible that the factory defaults are
suitable for your needs without change. (See Table 1)
The Set-Up procedure can only be activated just after power
is switched on to the cabinet. After switching on, press the
concealed key which is located under the "ne" of the newall
logo on the keypad (See Figure 1.3). The key must be
pressed before the end of the initial self diagnostic
routine.
When you have entered the Set-Up routine, the letters
‘SET-UP’ appear in the display.
The Set-Up procedure makes use of a menu system. The
main menu consists of a list of options that can be cus-
tomised for your use (See Table 2). You simply press the
[ ∧∧] [ ∨∨
]keys to scroll through this list until you reach the
option you wish to change. To change the option when
selected, press the [ Xo ] [ Yo ] or [ Zo ] key. On the single
axis version, the options can be changed by pressing the
blue [ 0 ] key.
To exit the Set-Up routine press the concealed key ("ne" of newall).
Default Setting DPG2000
Sleep On
Input Type Spherosyn
Resolution 5μm
Direction 1
Radius/Diameter Rad
Linear Compensation 0
Table 1 - Default Settings
CONCEALED KEY
FOR ENTERING
SET-UP ROUTINE
Figure 1.3 DPG2000 keypad

Set-Up
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LINEAR ERROR COMPENSATION
USER DEFINABLE
SLEEP
ON
OFF
Table 2 - Set-Up Menu Options
INPUT TYPE
SPHEROSYN
MICROSYN 5
MICROSYN 10
READINGS
RADIUS
DIAMETER
DIRECTION
0
1
3.1 Sleep/Datahold
In the Set-Up routine, press the [ ∧] key until "SLP ON" or "SLP OFF" is displayed. Toggle between
"SLP ON" or "SLP OFF" by pressing the [ Yo ] key.
Select "SLP ON" if you want to be able to use the Datahold facility. (See Section 5.6 for a description of
Datahold). Otherwise select "SLP OFF".
When the selection is made press [ ∧] to continue to the next option.
3.2 Input Type
Select between Spherosyn, Microsyn 5 or Microsyn 10 for each axis.
Pressing [ Xo ] [ Yo ] or [ Zo ] moves between transducer types for that axis. Pressing [ ent ] defines
that axis to be the selected type.
Warning: The axis selected for the input type must match the actual transducer (Spherosyn
or Microsyn) which is plugged into the corresponding axis. Erroneous readings
will occur if this warning is not followed.
When the selection is made press [ ∧] to continue to the next option.

Set-Up
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3.3 Direction
The direction option allows you to change the direction of travel of each axis. For example, if after installation
the X axis is measuring positive from right to left, you can use this option to change the direction of the X
axis so it measures positive from left to right.
In the Set-Up routine, press the [ ∧] until "DIR" (direction) is displayed.
Each axis display will show "0" or "1"
Pressing each axis key [ Xo ] [ Yo ] or [ Zo ] reverses the counting direction. When the unit is displaying
the choices you wish to use, press [ ∧] to continue to next option.
3.4 Radius/Diameter
This option allows you to select any axis to display measurements at a two times (x2) factor. This is used on
lathes and other turning applications to display part diameter rather than part radius.
In the Set-Up routine, press the [ ∧] key until "RAD" or "DIA" is displayed.
Pressing each axis key [ Xo ], [ Yo ] or [ Zo ], switches between radius and diameter readings for that axis.
When the unit is displaying the choices you wish to use, press [ ∧]to continue to the next option.
3.5 Linear Error Compensation
This option allows you to apply a constant correction factor to all measurements displayed. This factor is
expressed in parts per million (PPM).
In the Set-Up routine, press the [ ∧] key until LC (Linear Compensation) is displayed. The display will show
"LC 0" or the last correction factor entered.
To insert, or change, a correction factor, select the axis [ Xo ] [ Yo ] or [ Zo ] and enter the factor you wish to
use.
The value is entered by pressing the [ ∧] and [ ∨] keys.
For example, to apply a factor of 200PPM to the X axis, press the following keys: [ X ] [ ∧] until the displays
show 200 then press [ ent ].
If you make a mistake you can revert to the previous settings by pressing the [ ce ] key. This cancel
function will not work after the [ ent ] key has been pressed.
If the unit is displaying measurements less than the actual measurement, enter a positive factor to
compensate. A factor of 200PPM means displays are measurement x 1.000200. When each axis is
displaying the correction factor you wish to use, press [ ∧]to return to the first option.
3.5.1 Calculating Linear Error Compensation
To establish a correction factor, check the measurements displayed by the DPG2000 against a known
distance. The correction factor should be established while in the standard operating mode and not in the
Set-Up routine.

Set-Up/User Instructions
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Key Purpose
Set the current position for the axis to zero (reset)
Clear entry
Enter key to confirm data entry
Switches between absolute and incremental readings
(LED indicates choice of mode)
Centre Find function
Select the Digifind function
Setting Axes Resolutions
Switches between inch and millimetre display
(LED indicates choice of mode)
Scroll Up
Scroll Down
4.0 USER INSTRUCTIONS
4.1 Using the keypad
Figure 1.3 shows the layout of the keypad. The keys are used as follows:
For example, you might use a known (actual) distance of 500mm, against which the DPG2000 displays
499.8mm. The correction factor you would then apply is:
(0.2mm/500mm) x 1,000,000 = 400PPM
If the DPG2000 displays 500.2mm over the same distance, the correction factor would be:
(-0.2mm/500mm) x 1,000,000 = -400PPM
Warning: Once you have entered a multiplication factor for an axis, all measurements will be
adjusted accordingly. If you wish to disable this adjustment, you will have to enter a
compensation factor of zero.
You can re-edit any Set-Up function by locating it using the [ ∧] and [ ∨] direction keys.
To leave the Set-Up routine press the concealed key, which is located under "ne" of the newall logo.
XoYoZo
abs
inc
ce
12
ent
ref0
in
mm
∧
∨
res