Accurate Technology | ProScale | Instruction manual | Accurate Technology ProScale Instruction manual

ProScale™
General Instruction Manual
Includes: ProScale Model 150 & 250
ProStop
Measurement Table Kits
ProPanel
ProCaliper
Digital Displays
Accurate Technology, Inc.
270 Rutledge Rd. Unit E
Fletcher, NC 28732 USA
800 233-0580 • 828-654-7920
Fax 828-654-8824
www.proscale.com
info@accurate-technology.com
Warranty
Accurate Technology, Inc., warrants this product against defective parts
and workmanship commencing from the date of original purchase. Upon
notification of a defect, Accurate Technology, Inc., shall have the option
to repair or replace any defective part. Such services shall be the
customer's sole and exclusive remedy. Expenses incidental to repair,
maintenance, or replacement under warranty, including those for labor
and material, shall be borne by Accurate Technology, Inc. Freight or
transportation charges to Accurate Technology, Inc., shall be paid by the
customer.
Except as expressly provided in this warranty, Accurate Technology,
Inc., does not make any warranties in respect to the product, either
expressed or implied, including implied warranties of merchantability or
fitness for a particular purpose, except as expressly provided in this
agreement.
Accurate Technology, Inc., shall not be liable for any special, incidental,
or consequential damages or for loss, damage or expense directly or
indirectly arising from the customer's use of or inability to use the
equipment either separately or in combination with other equipment, or
for personal injury or loss or destruction of other property, or from any
other cause.
To request repair work (either warranty qualified parts or not), contact
Accurate Technology, Inc. directly by phone, fax, or e-mail. A Returned
Merchandise Authorization (RMA) number is required before returning a
product for repair.
SAFETY WARNING
Before installing ProScale products,
turn off the machine and disconnect it
from its power source to avoid injury.
SAFETY WARNING
Revision B, P/N 800-1001-003. Copyright © 1999, Accurate Technology, Inc. All
rights reserved.
2
Table of Contents
SECTION 1
GENERAL INFORMATION ........................................... 5
Introduction ...................................................................................5
ProScale Technology ....................................................................6
Scales-Incremental Vs. Absolute...................................................7
Readheads ....................................................................................9
System Descriptions ...................................................................10
Specifications..............................................................................12
SECTION 2
PRODUCTS ................................................... 14
ProScale Model 150 .....................................................................14
Mounting ...................................................................................14
ProScale Model 250 .....................................................................17
Mounting ...................................................................................17
ProStop .......................................................................................21
Assembly...................................................................................21
Mounting ...................................................................................22
ProKits ........................................................................................24
Assembly...................................................................................24
Measurement Table Kit ................................................................25
Assembly...................................................................................25
ProPanel......................................................................................27
Assembly...................................................................................27
Operation ..................................................................................27
ProCaliper ...................................................................................29
Assembly...................................................................................29
Mounting ...................................................................................29
Notes about Accuracy: ...............................................................30
Operation ..................................................................................30
SECTION 3
DISPLAY OPERATION ..................................... 32
Digital Display Descriptions ........................................................32
Basic and Incremental Displays ..................................................33
Standard and SPC Displays.........................................................36
1/4 DIN Panel Mount Displays......................................................40
Programmable (Including Externally Powered Displays).............43
Summary of Digital Display Keypad Functions ...........................46
Changing the Batteries ................................................................46
Mounting the Display...................................................................46
3
SECTION 4
MISCELLANEOUS ........................................... 47
Installation Notes ........................................................................47
Scales .......................................................................................47
Readheads ................................................................................47
Displays ....................................................................................48
Incremental Display
..........................................................49
Basic Display
...................................................................49
Standard Display
..............................................................49
SPC Display ..........................................................................50
Programmable Battery Display
..........................................51
Programmable Ext. Pwr. Display
......................................51
Panel Mount Display ...............................................................52
Panel Mount Display ...............................................................53
ProPower DC Power Supply....................................................54
Frequently Asked Questions .......................................................55
Error Codes & Factory Service....................................................56
Abbe Error ...................................................................................57
4
SECTION 1
GENERAL INFORMATION
Introduction
ProScale™ digital measuring systems are high-precision electronic
devices for making linear measurements with speed and accuracy,
consisting of a scale, a readhead (or encoder) mechanism and a digital
display unit. ProScale uses patented capacitive encoder technology, the
same technology used in high accuracy digital calipers.
ProScale is compatible with most machines used to dimension wood,
metal, plastic or composite materials. For example, one could measure
lengths and widths for a vertical-panel saw, set cutting depth for a router,
or set the position of a traverse axis on a tenoner. Besides measuring
linear distances, ProScale is ideal for setting the positions of fences,
stops, and cutters.
Because ProScale shows the exact measurement on its display, it
eliminates the guesswork involved in reading and interpreting tape,
pointer, or shaft encoder scales. It also speeds up measurements. As a
result, machine setup time can be reduced considerably, maximizing
throughput on a machine.
ProScale's measurement mode can be changed at the touch of a key
(most models). If accustomed to measuring in inches, ProScale can be
set to measure in sixteenths, thirty-seconds, sixty-fourths, or even in
thousandths of an inch.
If accustomed to working with metric
measurements, press a key to measure in millimeters. In any mode,
ProScale is designed to provide and maintain its accuracy for years.
ProScale is extremely rugged and durable. Unlike optical measurement
systems, the accuracy of capacitive systems is not affected by sawdust
or other non conductive contaminants. Additionally, power consumption
is much less than magnetic or optical measurement systems.
Because ProScale is a solid-state electronic device there's very little to
wear out. The read head and scale are designed to withstand shop dirt,
dust, and other airborne contaminants, and the controls are sealed with a
protective cover for long life. With normal care, ProScale will last for
years.
5
ProScale Technology
All ProScale systems consist of a SCALE, READHEAD, and a DISPLAY.
The SCALE consists of a series of conductive patterns on a nonconductive substrate. The READHEAD contains a computer chip which
transmits and receives signals to the scale using capacitive coupling
(without actually touching the scale). The received signal is used by the
computer chip to calculate the READHEAD position to 0.01mm
precision. This position data is sent to the digital DISPLAY, where it can
be displayed in fractions, decimal inches, centimeters, or millimeters.
Each of the primary components is either for incremental measurement
or for absolute measurement. (Absolute systems use a more robust and
sophisticated method to measure position, resulting in a high immunity to
electrical interference and one that does not forget its position.) In some
cases, these technologies may be used together. Because not all
ProScale systems utilize the same style scale, readhead, or display
(incremental or absolute), it is very important to understand exactly which
components your ProScale uses. First, you must know which product
you have. This may be determined by the pictures and descriptions on
the following pages of this manual, by reviewing our web site, by the
label on the packaging, or by contacting your supplier.
6
Scales-Incremental Vs. Absolute
Simply stated, an Incremental system measures the distance it has
traveled relative to a starting point.
An absolute system (ABS) measures its actual position by reading a
pattern which is unique at any given location over its length. The
maximum length of this pattern is 430mm (16.932 in.). The pattern must
then repeat itself.
Consider the illustration above to represent a ProScale ABS. There are
three absolute patterns (each pattern is 430mm long), joined together
end to end. Within each pattern the system is totally absolute. However,
crossing over a pattern joint now presents the readhead with information
identical to what it read in the previous pattern. At this point the system
must be able to recognize that it has crossed over a pattern joint and
therefore must add or subtract the value of 1 pattern offset. In fact,
each time the readhead passes over a pattern joint it must keep track of
how many patterns it has passed, and in which direction. This process is
accomplished by the software in the display.
What does all this mean? If the readhead remains on the same absolute
pattern, it can have power removed, its position changed and power
restored without loss of position information. However, if power is
removed and the readhead passes over a pattern joint, the
transition will not be recognized. When power is restored the
system knows its absolute position on the new pattern, but does
not know how many patterns it has passed, or in which direction!
Displays used in absolute systems provide the operator with a method
to adjust the pattern offset in the display memory so the system displays
the correct reading at all times without loss of accuracy. See Section 3
for information about the different ABS displays and how to correct for
pattern offsets.
7
All ABS style scales have a “zigzag” pattern etched onto the green
laminate. Take care to not damage this etching or remove the green
coating. There should also be a pattern “break” approximately every
430mm (17in.). Do not attempt to shorten ABS style scales.
ABS Style
Pattern
Incremental style scales have a repeating “bar” pattern etched onto the
green laminate. Take care not to damage the etched pattern, or remove
the green coating. There should also be a pattern “break” approximately
every 575mm (22.6in.). The Incremental style scales used in ProStop,
ProKit, Measuring Kits, and ProPanel may be shortened if needed. For
more detailed instructions, see the instructions on page 47.
Incremental
Style Pattern
Model 150 scales should be mounted to machinery using the supplied
M5 (or 10-32) machine screw and Connector Link. This Connector Link
is specially designed to flex slightly if there is any mechanical binding in
the readhead-to-scale mounting. The Connector Link should always be
mounted in the same direction as the scale (see the diagram on page
15). Warranty is void if the Connector Link is not used.
Model 250 scales were designed to be mounted on machinery using M4
(or 6-32) Flathead screws. Accurate Technology provides a Guide Clip
to attach the readhead to a moving part of a machine see the diagram on
page 18). Warranty is void if the Guide Clip is not used.
8
Readheads
ABS style readheads have “BLACK END OF SCALE” labels on the
cover, and the telephone-style wire exits from the corner of the housing.
Extreme care must be taken not to damage the six brass “fingers” inside
the readhead housing. ABS style readheads, used in all Model 150 and
Model 250 systems, must be mounted on ABS scales with a particular
orientation. Each readhead has an arrow on the label pointing in the
direction of the “BLACK END OF SCALE” (each ABS style scale will
have one end painted black). This relationship is very important, since
the readhead will work, but produce erratic results if incorrectly installed.
To insure proper operation, be sure the arrow on the readhead is
pointing toward the BLACK end of the scale. The standard readhead
has 3m (10 ft.) of cable. For special cable lengths, contact Accurate
Technology, Inc. The ABS style readheads are standard in the Model
150 and Model 250 systems.
Incremental style readheads do not have labels on the cover, and the
telephone style wire exits from the center of the housing. Extreme care
must be taken not to damage the twelve brass “fingers” inside the
readhead housing.
Incremental readheads may be mounted on
incremental scales with any orientation. Incremental readheads are
used in ProStop, ProKit, Measuring Kits, ProCaliper, and ProPanel.
9
System Descriptions
ProScale Model 150 systems use ABS
style scales, ABS style readheads, and
ABS style displays. Neither the scale
nor readhead are compatible with
Incremental style displays.
ProScale Model 250 systems use ABS
style scales, ABS style readheads, and
ABS style displays. Neither the scale
nor readhead are compatible with
Incremental style displays.
ProStop systems use Incremental style
scales, Incremental style readheads,
and ABS style displays.
The ABS
display has been modified to operate
with the Incremental scale and
Incremental readhead.
Measurement Kits use Incremental
style
scales,
Incremental
style
readheads,
and
ABS/SPC
style
displays. The ABS display has been
modified
to
operate
with
the
Incremental scale and Incremental
readhead.
ProPanel systems use Incremental
style
scales,
Incremental
style
readheads,
and
ABS/SPC
style
displays. The ABS display has been
modified
to
operate
with
the
Incremental scale and Incremental
readhead.
ProCaliper systems use Incremental
style
scales,
Incremental
style
readheads, and ABS style displays.
The ABS display has been modified to
operate with the Incremental scale and
Incremental readhead.
10
Other Accurate Technology System Descriptions
(See individual product manuals for detailed descriptions &
operation for the products below)
ProKits use Incremental style scales, Incremental style readheads, and
ABS style displays. The ABS displays have been modified to operate
with the Incremental scale and Incremental readhead.
See the
installation and operation manual for your ProKit for more information.
ProSet uses ABS style scales, ABS style readheads, and special
displays. See the Model 150 section for installation information. See the
ProSet manual for operation information.
ProCase uses ABS style scales and ABS style readheads. The
handheld pendant acts as a display unit for all scales. See the ProCase
manuals for operation information.
ProStand uses Incremental style scales, Incremental style readheads,
and Incremental style displays. See the ProStand manual for operation
information.
ProTOOL uses the ProStand system with or without digital displays and
a user supplied computer with monitor.
ProTable uses Incremental style scales, Incremental style readheads,
and ABS style SPC displays.
ProLine uses Incremental style scales, Incremental style readheads,
ABS style displays and Carter Products Laser Diode Guide Lights.
ProPower is a multi voltage input and multi voltage output power supply
used to power up to 10 LED digital displays or up to 50 LCD digital
displays.
11
Specifications
Accuracy:
± .165mm per meter to ± .2mm max. error
± .002in per foot to ± .008in max. error
Repeatability:
0.01mm or .001in.
Max. Slew Rate:
Model 150:
Model 250:
ProStop:
ProKits:
Measuring Kits:
ProPanel:
ProCaliper:
450 mm/sec. (18 inches/sec.)
450 mm/sec. (18 inches/sec.)
600 mm/sec. (24 inches/sec.)
600 mm/sec. (24 inches/sec.)
600 mm/sec. (24 inches/sec.)
600 mm/sec. (24 inches/sec.)
600 mm/sec. (24 inches/sec.)
Display Range:
± 9999.99 mm, ± 394.000 in , + 99 63/64
Power:
Model 150:
Model 250:
ProStop:
ProKits:
Measuring Kits:
ProPanel:
ProCaliper:
Varies with display option ordered.
Varies with display option ordered.
Two AA Alkaline Batteries
Two AA Alkaline Batteries
Two AA Alkaline Batteries
Two AA Alkaline Batteries
Two AA Alkaline Batteries
Battery Life:
Model 150:
Model 250:
ProStop:
ProKits:
Measuring Kits:
ProPanel:
ProCaliper:
Varies with display option ordered.
Varies with display option ordered.
One year with normal use.
One year with normal use.
One year with normal use.
One year with normal use.
One year with normal use.
Warranty:
Model 150:
Model 250:
ProStop:
ProKits:
Measuring Kits:
Three years from date of purchase
Three years from date of purchase
Two years from date of purchase
Two years from date of purchase
Two years from date of purchase
12
ProPanel:
ProCaliper:
Two years from date of purchase
Two years from date of purchase
Operating
Temperature:
0 to 51°C/
32 to 120°F
Output Format:
SPC display: Mitutoyo SPC format.
ProScale may be connected to a computer or
data logger. Call Accurate Technology, Inc. for
more information.
Cable:
Six-conductor, terminated by RJ12 modular
connector. To increase or decrease cable
length, contact Accurate Technology.
Dimensions:
All product dimensions available upon request.
13
SECTION 2
PRODUCTS
ProScale Model 150
ProScale Model 150 systems are general purpose absolute measuring
systems designed for taking measurements less than 450mm (18in.).
ProScale is easy to install. By following the basics of good installation in
this section, reliable, error-free operation is assured. Because ProScale
can be installed on many different types and brands of equipment, all
installations will be a little different. Therefore, it's the responsibility of
the installer to choose the bolts, screws, or other mounting hardware that
guarantee proper installation for optimum operation.
Note: If a kit was ordered which contains instructions for installing
ProScale onto a specific product, follow those instructions rather
than the general instructions here.
Mounting:
1. Note the orientation of the readhead on the scale. Be
sure the arrow on the readhead points towards the
“BLACK END OF SCALE”. This orientation is critical
for proper operation of ProScale. Be sure the mounting
location for the readhead and scale will allow this
orientation.
2. Determine an appropriate mounting location for the
Connector
system. The readhead should be mounted to a
Link
stationary part of the machine. The scale should be
mounted to the moving part of the machine with the connector link.
Be sure to allow sufficient space to accommodate the connector link,
which is used to mount the scale to the moving part of the machine.
14
4.
5.
6.
DISPLAY
MOVING PART OF MACHINE
CONNECTOR LINK
READHEAD
A Typical Model 150 Installation
15
MOVEMENT
3.
The Display should be mounted in a location which allows for easy
viewing by the machine operator. The location of the parts should
also safeguard the cable from possible damage. All ProScale wiring
should be kept as far away as possible from the machine’s wiring
and motors and dust collection systems.
Avoid running the
readhead wiring parallel to high voltage/current wiring.
Mount the readhead using three screws or bolts. It may be
necessary to use washers or spacers to ensure a good mount (if the
readhead is to be mounted on an uneven surface).
Check that the scale is properly aligned with the direction of motion
of the moving part. The connector link will compensate for only a
small amount of misalignment. The connector link must be mounted
in the same direction as the scale (as in the figure below).
Note: Failure to use the connector link will void the warranty.
Mount one end of the connector link to the scale using an M5 (or 1032) screw and the other end to the moving part of the machine.
Check that both connections are very secure; inaccurate/erratic
readings may otherwise occur.
Plug the readhead into the display. See Section 3 regarding
mounting and use of different display versions.
Calibration:
Once installed, ProScale can be calibrated easily and quickly. Following
is an example for calibrating ProScale on an industrial sander. Other
installations follow the same general procedure.
1. Check to be sure installation of all parts is complete, all fasteners are
secure, and the display is plugged in.
2. Set the machine to sand as normal. Using the regular operation, run
a part through the sander.
3. Measure the thickness of the sanded part with the most precise
measuring tool available (digital calipers if possible).
4. Press the zero key on the ProScale digital display.
Note:
If the direction of movement and the direction shown on
the digital display are opposite, the position of internal jumper JP3
should be changed. See Section 3 for more information.
5. Press and hold the PLUS key to scroll until the thickness
measurement is displayed (the longer the PLUS key is held down,
the faster the display will scroll).
6. When the proper reading is reached, lock the display if desired. This
prevents accidentally re-zeroing of the display. See Section 3 for
more information about how to lock the display.
7. Re-calibrate, if necessary, after changing sanding belts (or
applicable tooling).
8. Calibration is not necessary after batteries are changed.
Maintenance:
The aluminum scale should be cleaned of debris often. This will prevent
premature damage to the scale or readhead. Should the scale become
difficult to move, check that it is thoroughly cleaned. Find and remove
any burrs which may have developed on the aluminum scale. Do not
use any liquid lubricants on the scale assembly, as this may:
1. Impede the readhead's ability to operate properly.
2. Attract other contaminants to the scale.
The Digital Display should be cleaned periodically with compressed air to
remove any dust on the lens and keys. All mounting fasteners should be
checked occasionally for tightness.
16
ProScale Model 250
ProScale Model 250 systems are general purpose absolute measuring
systems designed for taking measurements up 6.0m (236in.).
ProScale is easy to install. By following the basics of good installation in
this section, reliable, error-free operation is assured. Because ProScale
can be installed on many different types and brands of equipment, all
installations will be a little different. Therefore, it's the responsibility of
the installer to choose the bolts, screws, or other mounting hardware that
guarantee proper installation for optimum operation.
Note: If a kit was ordered which contains instructions for installing
ProScale onto a specific product, follow those instructions rather
than the general instructions here.
Mounting:
1. Note the orientation of the readhead on the scale. Be
sure the arrow on the readhead points towards the
“BLACK END OF SCALE”.
This orientation is
critical for proper operation of ProScale. Check to be
sure the mounting location for the system will allow
this orientation.
2. Determine an appropriate mounting location for
Guide Clip
the system. The scale should be mounted to a
stationary part of the machine. The readhead
slides along the scale, using the supplied guide clip to translate
machine movement to readhead movement. The Display should be
mounted in a location which allows for easy viewing by the machine
operator. The location of the parts should also safeguard the cable
from possible damage. All ProScale wiring should be kept as far
away as possible from the machine’s wiring and motors. Avoid
running the readhead wiring parallel to high voltage/current wiring or
dust collection systems.
17
3. Mount the scale using M4 (or #6) screws. It may be necessary to
use washers or spacers to ensure a good mount if the scale is to be
mounted on an uneven surface. Be sure the screw heads do not
protrude above the surface of the extrusion. If they do, they will
interfere with the readhead.
a. Check that the scale is properly aligned with the direction of
motion of the moving part (any error in alignment will be
magnified by the digital components, and could cause premature
failure). Adjust the scale alignment if necessary.
4. Referring to the figure, note these two installation requirements:
a. For accurate measurements, the guide clip should be mounted
perpendicular to the direction of travel of the readhead.
b. Over the full range of travel, the guide clip should exert some
pressure on the readhead so the two move as a single unit.
Note: Failure to use the guide clip will void the warranty.
Moving
part of
machine
Guide
Clip
Readhead
Scale
Cable
Typical Model 250 Installation
18
5. Reinstall the readhead if it has been removed from the scale. Care
should be taken to not damage the readhead’s sensitive internal
ground fingers. Also note the orientation label on the readhead
housing. Carefully slide the readhead onto the scale, checking for
the proper orientation.
6. Slide the readhead until it meets and engages with the guide clip.
Check that the guide clip exerts sufficient pressure on the readhead,
as seen in the figure below.
Guide Clip
Readhead
21.2mm
(.83")
33.0mm (1.3")
Model 250 Scale
Guide Clip Pressure/Spacing (End View)
7. Place the cable in a secure position. If necessary, fasten it with a
wire tie or other fastening device. Do not leave the cable where it
could be damaged or pulled from the readhead. If the application
requires over twenty feet of cable, the display may need to be
modified for proper operation. Also, if the application requires a
shorter scale, please call Accurate Technology for assistance.
8. Plug the readhead into the display. See Section 3 regarding
mounting and use of different display versions.
Note: If any other mounting method is used, observe the following:
a. Do not drill through the green portion of the scale at any point
over which the readhead will travel.
b. Do not mount the scale so the mounting hardware interferes with
the movement of the readhead.
Calibration:
Once installed, ProScale can be calibrated easily and quickly. Following
is an example for calibrating ProScale on a table saw fence. Other
installations follow the same general procedure.
1. Check to be sure installation of all parts is complete, all fasteners are
secure, and the display is plugged in.
2. Cut a part using the normal operation.
19
3. Measure the length of the part with the most precise measuring tool
available (i.e. digital calipers).
4. Press the zero key on the ProScale digital display.
Note:
If the direction of movement and the direction shown on
the digital display are opposite, the position of internal jumper JP3
should be changed. See Section 3 for more information.
5. Press and hold the PLUS key to scroll until the length measurement
is displayed (the longer the PLUS key is held down, the faster the
display will scroll).
6. When the proper reading is reached, lock the display if desired. This
prevents accidentally re-zeroing of the display. See Section 3 for
more information about how to lock the display.
7. Re-calibrate, if necessary, after changing saw blades (or applicable
tooling).
8. Calibration is not necessary after batteries are changed.
Maintenance:
The aluminum scale should be cleaned of debris often. This will prevent
premature damage to the scale or readhead. Should the readhead
assembly become difficult to move, check that the scale is thoroughly
cleaned. Find and remove any burrs which may have developed on the
aluminum scale. Do not use any liquid lubricants on the scale assembly,
as this may:
1. Impede the readhead's ability to operate properly.
2. Attract other contaminants to the scale.
The Digital Display should be cleaned periodically with compressed air to
remove any dust on the lens and keys. All mounting fasteners should
occasionally be checked for tightness. If there is any wear on the green
laminate of the scale, the guide clip pressure on the readhead should be
reduced. If wear continues, the readhead bearing should be replaced.
20
ProStop
ProStop is a complete digital stop and fence system for chop saws,
radial arm saws, and miter saws.
ProStop is easy to install. By following the basics of good installation in
this section, reliable, error-free operation is assured. Because ProStop
can be installed on so many different types and brands of equipment, all
installations will be different. Therefore, it's the responsibility of the
installer to choose the bolts, screws, or other mounting hardware that
guarantee proper installation for optimum operation.
Assembly:
Each ProStop shipped from Accurate Technology will have at least two
packages. The first contains the linear scale and fence extrusion. The
second package contains the digital stop, an anti-tearout block, and
mounting hardware. These parts should be assembled prior to mounting
the ProStop.
1. Readhead installation: Note the readhead’s sensitive internal ground
fingers. Carefully slide the readhead onto the scale (see diagram on
next page).
2. Stop Installation: Loosen the locking knob and slide the stop into the
fence extrusion.
3. Slide the readhead up to the stop and slip the guide clip over the
post on the readhead.
4. Display Installation: The display should be mounted to the aluminum
block on the stop using the enclosed Velcro. Plug the readhead into
the display.
5. Next, move the stop assembly left to right and note if the ProStop
readings increase or decrease. Depending upon the installation (left
21
or right infeed), it may be necessary to change the position of JP3
inside the digital display to reverse the reading direction. (See
section 3 regarding display jumper settings.)
Mounting:
1. Position the fence system so it is as close to 90 degrees with respect
to the blade as possible.
2. The included installation nuts fit the T-slot in the bottom of the fence
extrusion. These nuts can be used with the included bolts to mount
the ProStop from the bottom.
3. The anti-tearout block (oak piece with bolts and nuts) can be used if
the ProStop will be cutting parts where tearout is a problem. The
block should be installed on the face of the fence extrusion, with the
nuts inside the T-slot on the front of ProStop.
Lock Knob
Display
Adjustable
Wing
Guide Clip
Stop
Readhead
Fence
Extrusion
ProStop End View (shading shown is for clarity only)
Calibration:
Once installed, ProStop can be calibrated easily and quickly. Following
is an example of calibrating ProStop for a cutoff saw application. Other
installations follow the same general procedure.
1. Check to be sure installation of all parts is complete, all fasteners are
secure and the display is plugged in.
2. Cut a part using the normal operation.
3. Measure the length of the part with the most precise measuring tool
available (i.e. digital calipers).
4. Press the zero key on the ProScale digital display.
22
5. Press and hold the PLUS key to scroll until the measurement is
displayed (the longer the PLUS key is held down, the faster the
display will scroll).
6. When the proper reading is reached, lock the display if desired. This
prevents accidentally re-zeroing of the display. See Section 3 for
more information about how to lock the display.
7. Re-calibrate, if necessary, after changing saw blades (or applicable
tooling).
8. Calibration is also necessary after display batteries are changed.
Maintenance:
1. The fence extrusion should be cleaned of all debris periodically. Do
not use any liquid lubricants on the scale assembly, as this may:
a. Impede the readhead's ability to operate properly.
b. Attract other contaminants to the scale.
2. Should the stop become difficult to move, and the fence and scale
have both been cleaned, the plastic wing may need adjustment:
a. Position the wing to hold the locking
mechanism of the stop in the center
of the extrusion slot.
b. The position of the wing can be
adjusted after removing the plastic
guide clip and loosening the socket screws (using a 3/16" hex
wrench) which sandwich the wing between the stop and the
aluminum block.
c. The wing is adjusted properly when the weight of the stop is
supported by the wing and the locking mechanism does not rub
on the extrusion.
3. The Digital Display should be cleaned periodically with compressed
air to remove any dust on the lens and keys. All fasteners should
occasionally be checked for tightness.
4. To change the batteries, remove the two screws that hold the cover
to the base of the digital display. Remove the top cover carefully.
Install two AA size alkaline batteries, noting the proper orientation
shown in the battery compartment. Replace the cover and tighten
the screws.
23
ProKits
ProKits are easy to install. By following the basics of good installation,
reliable, error-free operation is assured. Because individual machines
may have different manufacturing dates and/or castings, some
installations may differ, and require hardware not provided by Accurate
Technology. In these cases, it's the responsibility of the installer to
choose the additional bolts, screws, or other mounting hardware that
guarantee proper installation and optimum operation.
Assembly:
Each ProKit shipped from Accurate Technology will have at least two
packages. The tubes contain the linear scales. The boxes contain the
hardware, brackets, digital components, and installation instructions.
Some parts may have been assembled prior to shipping.
Follow the installation instructions in the box to install the ProKit.
Use this manual as a reference for information concerning the
digital components and their use. Depending upon the installation, it
may be necessary to change the position of JP3 inside the digital display
to reverse the reading direction. (See section 4 regarding display jumper
settings.) After the ProKit's digital scale has been positioned, it is very
important to check that the scale is mounted in the exact direction of the
desired measurement, as measuring errors will result if the digital scale
is misaligned.
24
Measurement Table Kit
Measuring Table Kits are easy to install. By following the basics of good
installation in this section, reliable, error-free operation is assured.
Because Measuring Table Kits can be installed in so many different
configurations, all installations will be slightly different. Therefore, it's the
responsibility of the installer to choose the bolts, screws, or other
mounting hardware that guarantee proper installation for optimum
operation.
Note: If a kit was ordered which contains instructions for installing
Measuring Table Kits onto a specific product, follow those
instructions rather than the general instructions here.
Assembly:
Each Measuring Table Kit shipped from Accurate Technology will have
at least two packages. The first contains the linear scale. The second
contains the sliding assembly, and some mounting hardware. These
parts should be assembled prior to mounting the Measuring Table Kit.
1. Remove the readhead from the scale.
2. Remove the front cover from the ProScale display.
3. Carefully drill the threads out of the brass inserts in the bottom cover,
with a 3/16" (or equivalent) drill.
4. Remove the guide clip attached to the sliding assembly.
5. Note the readhead’s sensitive internal ground fingers. Place the
readhead into the sliding assembly cutout and carefully slide the unit
onto the aluminum scale.
6. Reattach the guide clip to the sliding assembly.
7. Mount the display (top and bottom re-assembled) onto the sliding
assembly using the supplied #8-32 x 1 3/4" screws and spacers.
The spacers are inserted between the display and the moving
assembly.
25
8. Plug the readhead into the display. Move the assembly from left to
right and note if the display's readings increase or decrease.
Depending upon the installation, it may be necessary to change JP3
inside the digital display to reverse the reading direction. (See
section 3 regarding display jumper settings.)
9. After the Measurement Table Kit has been assembled, it is very
important to check that the scale will be mounted in the exact
direction of the desired measurement, as measuring errors will
result if the scale is not properly aligned. See "Abbe error" on page
57 for more information.
10. Mount the scale using M4 (or #6) Flathead screws. Check that the
backstop is solid and will not move under pressure. The scale may
be recessed if desired; the cutout for the scale should be at least
2.02 inches wide for the full length of the aluminum scale.
Maintenance:
The digital scale should be cleaned of all debris often. This will prevent
premature damage to the scale or readhead. Should the assembly
become difficult to move, check that the scale is thoroughly cleaned.
Find, and remove any burrs which may have developed on the aluminum
scale. Do not use any liquid lubricants on the scale assembly, as this
may:
1. Impede the readhead's ability to operate properly.
2. Attract other contaminants to the scale.
3. Swell the black bearings on the moving assembly, thus making the
assembly tighter on the scale.
The Digital Display should be cleaned periodically with compressed air to
remove any dust on the lens and keys. All fasteners should be checked
occasionally for tightness. If there is any wear on the green laminate of
the scale, the guide clip pressure on the readhead should be lessened.
If wear continues, the readhead bearing should be replaced.
NOTE:
Completely assembled measurement systems are also available from
Accurate Technology
ProTable I
ProTable II
ProTable III
Single Axis Measurements
Two Axis Measurements
Three Axis Coordinate
Measurements
26
ProTable I
ProPanel
ProPanel is a portable measuring system capable of edge-to-edge,
edge-to-hole, hole-to-hole, and corner-to-corner measurements up to
1.2m (48in.).
ProPanel is easy to use. By following the instructions in this section,
reliable, error-free operation is assured.
Assembly:
ProPanel is assembled at the factory. If using the ProPanel to measure
hole-to-edge or hole-to-hole distances, install the provided cones using
the enclosed hex wrench.
Operation:
Edge-To-Edge Measuring:
Use ProPanel like a T-square.
Close the jaws, and take the
measurement.
Note: Do not use the outer edges of the jaws for measurements. If
possible, use the full width of the jaw for reliable measurements.
Corner-To-Corner Measuring:
Place the ProPanel jaws over the panel corners. Gently "wiggle" the
ProPanel while applying light closing pressure to seat the corners.
Change to Incremental mode by pressing the red button on the display.
(Press the zero key to zero the display if necessary.) Measure the
second diagonal. The difference in diagonal lengths will be shown on
the display. If the diagonal measurements are equal and any two
adjacent edges are equal, then the panel is square. Press and hold the
red button on the display for three seconds to return to Absolute mode.
27
Hole-To-Hole Measuring:
Install the two full cone attachments. Close the ProPanel. Use the plus
or minus keys to adjust the display to exactly 38.1mm (1.500 inches).
Place the cones into the holes to be measured. Be sure the cones are
fully seated in the holes. Do not press down on the rail of the ProPanel,
as this may affect accuracy.
Edge-To-Hole Measuring:
Install one full cone attachment and one half cone attachment. Close the
ProPanel. Use the plus or minus keys to adjust the display to exactly
19.05mm (.750 inches). Place the full cone in the hole and the half cone
against the edge of the panel. Keeping the ProPanel rail equidistant
from the panel (by adjusting the half cone's position up or down) will
assure the highest accuracy measurement.
Maintenance:
Occasionally check parallelism of the jaws by measuring a thick piece of
paper on the upper side of the jaws, then on the lower side of the jaws.
A variation of 0.05mm (0.002 inches) is acceptable. Use a precision
square to adjust if necessary. The digital scale should be cleaned of all
debris often. This will prevent premature damage to the scale or
readhead. Should the assembly become difficult to move, check that the
scale is cleaned. Find, and remove any burrs which may have
developed on the aluminum scale. Do not use any liquid lubricants on
the scale assembly, as this may:
1. Impede the readhead's ability to operate properly.
2. Attract other contaminants to the scale.
3. Swell the black bearings on the moving assembly, thus making the
assembly tighter on the scale.
The Digital Display should be cleaned periodically with compressed air to
remove any dust on the lens and keys. All fasteners should be checked
occasionally for tightness. If there is any wear on the green laminate of
the scale, the guide clip pressure on the readhead should be lessened (if
wear continues, the readhead bearing should be replaced.)
28
ProCaliper
ProCaliper is easy to install and use. By following the installation
instructions in this section, reliable, error-free operation is assured, with
only an occasional need for adjustments or realignment of the jaws.
Assembly:
1. The jaws can be attached to the caliper in either of two positions.
They may be mounted on the upper or lower side of the lip on each
of the fixed or moving heads.
2. Loosely attach the left (fixed head) jaw to the caliper using the
supplied socket screws. Square the jaw to the caliper rail with a
machinist's square. Carefully tighten the screws, taking care to keep
the jaw square to the rail.
3. Loosely attach the right jaw (moving head) to the caliper using the
supplied socket screws. Slide the moving head up to the fixed head
until the measuring surfaces of the two jaws touch.
4. While holding the jaws together, carefully tighten the screws on the
moving jaw.
5. Using a feeler gauge, check for misalignment between the jaws near
the tip and the heel of the jaws. If a gap of more than 0.05mm
(0.002 inches) exists between the jaws at either point, loosen the
screws and repeat steps 2 through 4.
Mounting:
1. Determine an appropriate mounting surface for the ProCaliper.
Ideally, it should be mounted on an open, flat surface which does not
interfere with the moving head.
2. Notice the three 1/4-20 mounting holes in the bottom of ProCaliper.
Determine the depth of the mounting surface. Mount the rail to the
surface using bolts of the appropriate length, making certain it is
29
mounted without any bending stress to the rail, which will cause
measuring inaccuracies.
3. Check that the bolts extending through the rail will not interfere with
the operation of the moving head. To provide the best accuracy,
provide large clearance holes in the mounting surface, and shim all
gaps precisely.
Notes about Accuracy:
ProCaliper has been thoroughly tested for accuracy against national
standards. This test data has been supplied. However, the following
situations can affect ProCaliper's overall accuracy. The specified
accuracy of ± 0.05mm (0.002 inches) per measured foot is achieved at
the heel (rail side) of the jaws. In some cases, this specified level of
accuracy may be exceeded at the tip of the jaws. This difference results
from the large distance between the center of the measuring scale inside
the caliper rail and the tips of the caliper jaws. Small changes in
temperature can cause slight differences in a given measurement.
Because ProCaliper's major components are made from aluminum,
which has a temperature coefficient of 23ppm/°C, it is strongly suggested
to use ProCaliper in a temperature stable environment (over the
2400mm [96 inch] measuring range, this coefficient can alter
measurements by 0.05mm [0.002 inches] per °C).
Operation:
1. Insert the object to be measured between the caliper jaws. While
holding the object against the measurement face of the fixed jaw,
slide the right jaw to the other end of the object until it stops.
2. Press in and rotate the fine adjustment thumb-wheel until the moving
jaw is tight against the object. If the position of the moving jaw
needs to be held in place, use the lock knob on the top of the moving
head.
3. If not using the ProCaliper with SPC data collection devices, press
the black button on the display to HOLD the displayed value. All of
the display's operations will be stopped until the black button is
pressed again.
4. Read the measurement data from the ProCaliper's display. The
displayed data can now be sent to an SPC data collector/processor
(if attached) by pressing the black button.
30
To Make Relative Measurements:
Measure the first part. Change to Incremental mode by pressing the red
button on the display. Press the zero key. Measure the second part.
The difference in length will be shown on the display. When finished
taking relative measurements, press and hold the red button on the
display for three seconds to return to Absolute mode.
Tips for Measuring Long Parts:
1. When measuring long parts, keep them parallel to the caliper rail
(and as close as possible).
2. Support the object being measured so it is as straight as possible.
Maintenance:
ProCaliper must be kept clean to measure accurately. The measuring
edges of the jaws and the bearing ways must be kept free of dust, dirt,
and other residue.
Clean often using a nonabrasive cleaner.
Inconsistent measurements often indicate ProCaliper's jaws or bearings
need realignment or adjustment. The Digital Display should be cleaned
periodically with compressed air to remove any dust on the lens and
keys. All fasteners should be checked occasionally for tightness.
Periodically check the jaw alignment, particularly after rough or
prolonged use.
Checking Bearing Adjustment:
ProCaliper's moving head has four white, cylindrical bearings which help
it to slide easily along the caliper rail. These bearings, made of UHMW
plastic, slide in grooves located on the front and rear of the caliper rail.
The two bearings on the rear side have small spring plungers which keep
the moving head at a constant distance from the caliper rail. The spring
load on the bearings may have to be adjusted after prolonged use. To
adjust the load, loosen the lock nuts on the spring plungers several turns.
Tighten each spring plunger until the spring bottoms out. Loosen each
screw 1/2 turn, then tighten the lock nuts. Check for smooth sliding
operation and adjust again if necessary.
31
SECTION 3
DISPLAY OPERATION
Digital Display Descriptions
Accurate Technology makes several digital displays for use with its
products. All displays have the same five keys (ON/OFF, MODE, +,
ZERO, and -), and in some cases, some extra buttons. The following is
a listing of the displays and their options:
Display Description
Incremental Display
(P/N 701-1495-002)
Extra Buttons Feature(s)
none
Used w/ incremental systems.
Standard on older systems,
such as Model 100/200.
Basic Display
(P/N 701-1495-001)
none
No SPC, No HOLD
Can be used for Model 150/250.
Standard Display
(P/N 701-1500-001
1 red
Absolute/Incremental readings
Standard on ProStop, ProKits.
Can be used for Model 150/250.
SPC Display
(P/N 701-1505-002)
1 red, 1 black
Absolute/Incremental readings,
and 10-pin SPC Output.
Standard on ProPanel,
ProCaliper, and Measuring Kits.
Can be used for Model 150/250.
1/4 DIN Panel Mount
(P/N 701-1550-002)
none
Absolute systems only.
Panel Mounting Enclosure.
Operates on "D" size alkalines.
Can be used for Model 150/250.
1/4 DIN Panel Mount
(P/N 701-1525-001)
none
For use with Model 150 only.
Panel Mounting Enclosure.
Operates on 24V AC or DC.
Programmable Display none
(P/N 701-1115-001)
Absolute/Incremental readings.
Display is user programmable.
Can be used for Model 150/250.
External Power
(P/N 701-1115-002)
Uses ProPower™ for operation
Can be used for Model 150/250.
none
It is very important to use the correct instructions for each display
version, as each display operates somewhat differently.
32
The positions of the internal jumpers may be changed to limit the
available display options or change the resolution. See the display
options charts starting on page 48 for more information.
Basic and Incremental Displays
Changing the Measurement Readout:
Press the MODE key to change the measurement readout. The current
measurement readout is saved when power is off. Readouts appear in
the following order:
1. mm.
2. Decimal inches.
3. 16ths of an inch, each bar in the display's upper right corner
represents an additional 1/64th of an inch.
4. 32nds of an inch, each bar in the display's upper right corner
represents an additional 1/64th of an inch.
5. 64ths of an inch.
Setting Zero
A zero point is easily established by pressing the ZERO key when the
display is unlocked. All subsequent measurements will reflect distance
from this point.
33
Incrementing/Decrementing the Display
The PLUS or MINUS keys on the digital display are used to adjust a
reading. For instance, if the display needs to read greater than its
current value, use the PLUS key. Conversely, to reduce the current
displayed reading, use the MINUS key. This function is used to preset a
value in the system. When the display is in the locked mode these keys
will either:
1. No longer function, preventing accidental adjustment of readings, or
2. They will be used for another function: pattern offset (only in the
Basic displays).
Note: When pressing the PLUS or MINUS keys, the display scrolls
slowly for a couple seconds and then speeds up.
Reverse Scaling
When setting a zero point on ProScale, moving the scale (or readhead)
in one direction will produce positive readings. Moving the scale past
zero in the opposite direction will produce negative readings. Reverse
scaling means changing the orientation so the positive readings become
negative and negative readings become positive.
To reverse the
readings, the position of JP3 (inside the display) must be changed. See
the chart of Display Options for more information.
Auto Save
When power is turned off, ProScale remembers the current
measurement and current mode of operation. When ProScale is turned
back on, the user can continue where they left off. It's not necessary to
zero the reading or change the mode. Also, keystrokes are not
recognized when power is off, so accidental keystrokes will not change
the stored information.
Locking the Keypad
The display allows the user to lock the keypad so the current settings
can't be accidentally changed by depressing the ZERO, PLUS or MINUS
keys. To lock the keypad proceed as follows:
1. While depressing and holding the ON/OFF key, momentarily press
the MODE key.
2. Release the MODE key and then the ON/OFF key. The display
should now indicate “LOCK” in the upper left corner.
3. Use the same procedure to UNLOCK the keypad.
34
Note:
Locking the keypad may cause the PLUS and MINUS keys to
function differently. (See “Pattern Adjustment”.) The zero key
will not function when the display is locked.
Pattern Adjustment (Basic Display Only)
Whenever the readhead is disconnected from its power source, or the
display is turned off, and the readhead is moved over a pattern joint, the
displayed reading may be one or more patterns (+ 430mm) in error when
power is restored. This may also occur if the readhead is moved too
quickly in Model 150/250 systems.
To correct the error, place the digital display in ABS LOCK mode and
use the PLUS or MINUS keys to increment or decrement the reading
until the proper reading is displayed. Using this procedure will result in
NO LOSS OF ACCURACY to the system.
Changing the Batteries
To change the batteries, remove the two screws holding the cover to the
base of the display housing. Carefully pull off the cover. Remove the
batteries. Reinstall new ones, noting the proper orientation shown in the
battery compartment. Replace the cover and tighten the screws.
Note: DO NOT ATTEMPT TO BEND BATTERY CLIPS!
Mounting the Display
There are four small mounting holes in the back of the display which may
tapped for M2 or 4-40 screws. The display may also be mounted using
double sided tape or Velcro.
35
Standard and SPC Displays
Changing the Measurement Readout:
Press the MODE key (while in ABS mode) to change the measurement
readout. The current measurement readout is saved when power is off.
Readouts appear in the following order:
1. mm.
2. Decimal inches.
3. 16ths of an inch, each bar in the display's upper right corner
represents an additional 1/64th of an inch.
4. 32nds of an inch, each bar in the display's upper right corner
represents an additional 1/64th of an inch.
5. 64ths of an inch.
Setting ABS Position
When the display is in ABS mode (indicated by ABS in the upper left
corner of the display), a zero point is established by pressing the ZERO
key. All subsequent absolute measurements will reflect distance from
this point. The display should be locked to prevent accidental resetting.
36
Setting INC Position
Momentarily press the ABS/INC button. This switches the display to
incremental mode. Press the ZERO key. Any measurement now taken
will be an incremental measurement. The display can be repeatedly rezeroed (for incremental measurements) by pressing the ABS/INC button
for one second. To return to the ABS coordinate system, press the
ABS/INC button for 3 seconds.
Incrementing/Decrementing the Display
The PLUS or MINUS keys on the digital display are used to adjust a
reading. For instance, if the display needs to read greater than its
current value, use the PLUS key. Conversely, to reduce the current
displayed reading, use the MINUS key. This function is used to preset a
value in the system. When the display is in the LOCK mode these keys
will either:
1. No longer function, preventing accidental adjustment of readings, or
2. They will be used for another function (pattern offset in ABS LOCK
mode).
Note:
When pressing the PLUS or MINUS keys, the display scrolls
slowly for a couple seconds and then speeds up.
Reverse Scaling
When setting a zero point on ProScale, moving the scale in one direction
will produce positive readings. Moving the scale past zero in the
opposite direction will produce negative readings. Reverse scaling
means changing the orientation so positive readings become negative
and negative readings become positive. To reverse the readings, the
position of JP3 (inside the display) must be changed. See the chart of
Display Options for more information.
Auto Save
When power is turned off, ProScale remembers the current
measurement and current mode of operation. When ProScale is turned
back on, it continues where it left off. It's not necessary to zero the
reading or change the mode. Also, keystrokes are not recognized when
power is off, so accidental keystrokes will not damage the stored
information.
37
Locking the Keypad
The display allows the keypad to be locked so the current settings can't
be accidentally changed by depressing the ZERO, PLUS or MINUS
keys. To lock the keypad proceed as follows:
1. While depressing and holding the ON/OFF key, momentarily press
the MODE key.
2. Release the MODE key and then the ON/OFF key. The display
should now indicate “LOCK” in the upper left corner.
3. Use the same procedure to UNLOCK the keypad.
NOTE: Locking the keypad may cause the PLUS and MINUS keys to
function differently. (See “Pattern Adjustment”.) The zero key
will not function when the display is locked.
Pattern Adjustment
Whenever the readhead is disconnected from its power source, or the
display is turned off, and the readhead is moved over a pattern joint, the
displayed reading may be one or more patterns (+ 430mm) in error when
power is restored. This may also occur if the readhead is moved too
quickly in Model 150/250 systems.
To correct the error, place the digital display in ABS LOCK mode and
use the PLUS or MINUS keys to increment or decrement the reading
until the proper reading is displayed. Using this procedure will result in
NO LOSS OF ACCURACY to the system.
Hold
The current state of the display is "frozen" when the HOLD button is
pressed, and remains "frozen" until the button is pressed again. When in
hold, the display will display HOLD in the upper left corner, and no
movements or keystrokes will be recognized. When HOLD is released,
all pending keystrokes will be recognized. If the power is cycled, the
HOLD will be cleared.
Note: The ProScale display will auto-detect an SPC device connected
to the display and reconfigure the HOLD button to Data Send.
38
SPC (Statistical Process Control)
The data format and connector style of the ProScale SPC output is the
same as Mitutoyo SPC. This is an industry standard that can be
interfaced with most available SPC products including multiplexers,
RS232 converters and PC plug-in boards. Data from the ProScale is
sent to the SPC connector in either millimeters or decimal inches.
Accounting for Kerf
When a measurement needs to account for kerf, ProScale makes it easy
to make the measurement without having to perform any calculations.
The following is an example of how to account for kerf on a table saw.
For other instruments in which kerf should be considered, vary this
procedure accordingly.
1. Measure the kerf of the saw blade as accurately as possible.
2. Press the ABS/INC button on the Display to set display to INC.
3. Press the PLUS (or MINUS) key until the kerf measurement is
displayed.
4. Press the ABS/INC button for one second to save this value into the
display's memory.
5. After the first cut, press the ABS/INC button to compensate for kerf.
6. Press the ABS/INC button before each of the following cuts.
7. When finished cutting, press the ABS/INC button for 3 seconds to
view the absolute distance from the saw blade.
Changing the Batteries
To change the batteries, remove the two screws holding the cover to the
base of the display housing. Carefully pull off the cover. Remove the
batteries. Reinstall new ones, noting the proper orientation shown in the
battery compartment. Replace the cover and tighten the screws.
Note: DO NOT ATTEMPT TO BEND BATTERY CLIPS!
Mounting the Display
There are four small mounting holes in the back of the display which may
tapped for M2 or 4-40 screws. The display may also be mounted using
double sided tape or Velcro.
39
1/4 DIN Panel Mount Displays
Power Supply
There are two versions of the 1/4 DIN Panel mounted displays. The first
version requires power supplied from two "D" cell batteries (shipped with
the display). The second version requires the installer to hook up power
(24 volts, AC or DC) to the display.
Mounting the Display
A cutout must be made in the panel where the display is to be mounted.
The cutout should measure at least 90mm x 90mm (3.6 x 3.6 inches).
The cutout should measure no larger than 93mm x 93mm (3.7 x 3.7
inches).
The casing of the panel mount displays "sandwich" a panel between the
front cover and the rear cover.
The displays are designed to
accommodate any panel thickness between 0.125" and 0.750".
Note: For any panel thinner than 0.125 inches, shorter screws
must be used for the display casing. If shorter screws are not used,
damage to the front cover will occur.
40
Changing the Measurement Readout:
Press the MODE key to change the measurement readout. The current
measurement readout is saved when power is off. Readouts appear in
the following order:
1. Millimeters.
2. Decimal inches.
3. 16ths of an inch, each bar in the display's upper right corner
represents an additional 1/64th of an inch.
4. 32nds of an inch, each bar in the display's upper right corner
represents an additional 1/64th of an inch.
5. 64ths of an inch.
Setting Zero
A zero point is easily established by pressing the ZERO key when the
display is unlocked. All subsequent measurements will reflect distance
from this point.
Incrementing/Decrementing the Display
The PLUS or MINUS keys on the digital display are used to adjust a
reading. For instance, if the display should read greater than its current
value, use the PLUS key. Conversely, to reduce the current displayed
reading, use the MINUS key. This function is used to preset a value in
the system. When the display is in the LOCK mode these keys will
either:
1. No longer function, preventing accidental adjustment of readings, or
2. They will be used for another function (pattern offset in ABS LOCK
mode).
Note:
When pressing the PLUS or MINUS keys, the display scrolls
slowly for a couple seconds and then speeds up.
Reverse Scaling
When setting a zero point on ProScale, moving the scale in one direction
will produce positive readings. Moving the scale past zero in the
opposite direction will produce negative readings. Reverse scaling
means changing the orientation so the positive readings become
negative and negative readings become positive.
To reverse the
readings, the position of a jumper (inside the display) must be changed.
See the chart of Display Options for more information.
41
Auto Save
When power is turned off, ProScale remembers the current
measurement and current mode of operation. When ProScale is turned
back on, the user can continue where they left off. It's not necessary to
zero the reading or change the mode. Also, keystrokes are not
recognized when power is off, so accidental keystrokes will not damage
the stored information.
Locking the Keypad
The keypad may be locked so the current settings can't be accidentally
changed by depressing the ZERO, PLUS or MINUS keys. To lock the
keypad proceed as follows:
1. While depressing and holding the ON/OFF key, momentarily press
the MODE key.
2. Release the MODE key and then the ON/OFF key. The display
should now indicate “LOCK” in the upper left corner.
3. Use the same procedure to UNLOCK the keypad.
Note:
Locking the keypad may cause the PLUS and MINUS keys to
function differently. (See “Pattern Adjustment”.) The zero key
will not function when the display is locked.
Pattern Adjustment (Battery Powered Display Only)
Whenever the readhead is disconnected from its power source, or the
display is turned off, and the readhead is moved over a pattern joint, the
displayed reading may be one or more patterns (+ 430mm) in error when
power is restored. This may also occur if the readhead is moved too
quickly in Model 150/250 systems.
To correct the error, place the digital display in ABS LOCK mode and
use the PLUS or MINUS keys to increment or decrement the reading
until the proper reading is displayed. Using this procedure will result in
NO LOSS OF ACCURACY to the system.
42
Programmable (Including Externally Powered Displays)
Display Programming
This display must be programmed for the user's preferences before use.
All display programming is done through the keypad on the display face.
All programming parameters are saved in memory and are preserved in
the event of power failure. To enter programming, press and hold the
MODE key, then press the ZERO key. The display will show the
following:
1
Note:
0
If no change occurs to the display, the display programming
option has been disabled. To enable the programming options,
JP1 inside the display must be set to the B position.
The left-most digit represents the programming option (1 to 9). Each of
these options represents a different program parameter. The number on
the right represents the current value of the parameter. To change the
parameter value, press the PLUS/MINUS key to increase/decrease the
displayed value. (Each parameter has a limited range and cannot be
exceeded by additional presses of the PLUS or MINUS key).
To move to the next programming parameter, momentarily press the
MODE key. The programming parameter (left side) will increase by one,
43
and show the next parameter value (right side).
After the ninth
parameter, pressing the MODE key will restart the parameter list at 1.
To exit the programming mode, press and hold the MODE key, then
press the ZERO key.
The programming parameters and the valid parameter values are shown
in the following chart:
Parameter Option
Option 1
Measurement Units
Option 2:
Enable/Disable Offsets
Option 3:
Enable/Disable Multi-Pattern Scales
(Must be enabled for scales over 17")
Option 4:
Encoder Direction (changes sign)
Option 5:
Enable/Disable HOLD Feature
Option 6:
Automatic Power-off Timer
Option 7:
INC Mode Operation
Option 8:
Scaling Multiplier
Option 9:
Position Change Needed for Wake-up
(must be set in mm)
Valid Parameter Values
0 = millimeters
1 = decimal inches
2 = Fractions, 16ths
3 = Fractions, 32nds
4 = Fractions, 64ths
0 = Offsets can not be entered
1 = Offsets can be entered
0 = Multiple Scale Patterns not recognized
1 = Multiple Scale Patterns allowed
0 = Positive readings
1 = Negative readings
0 = HOLD feature is disabled
1 = HOLD feature is enabled
0 = Automatic Power-off is disabled
1-255 Number of minutes until power-off
0 = Disables INC mode; ABS mode only
1 = Allows kerf values in INC mode
nd
2 = Uses INC mode as 2 coordinate system
Scaling multiplier can be from 0.01 to 99.999
Default value is 1.000
Valid range is .1mm to 99.9mm
Default is 2.0mm
Setting ABS Position
When the display is in ABS mode (indicated by ABS in the upper left
corner of the display), a zero point is established by pressing the ZERO
key. All subsequent absolute measurements will reflect distance from
this point. The display should be locked to prevent accidental resetting.
Setting INC Position
Momentarily press the MODE key.
This switches the display to
incremental mode. Press the ZERO key. Any measurement now taken
will be an incremental measurement. The display can be repeatedly rezeroed (for incremental measurements) by pressing the MODE key (for
44
one second). To return to the ABS coordinate system, press the MODE
key twice within 2 seconds.
Note: If disabled, INC mode cannot be activated using the MODE key.
To set a kerf value (for repeating cuts), press the plus, zero and minus
keys (with LOCK off), then press the MODE key for one second.
In the secondary coordinate system mode, INC mode operates exactly
like ABS mode. This can be useful in applications (like vertical panel
saws) where two positions on the same axis are based on one
readhead's movement. Press the MODE key twice within 2 seconds to
return the display back to the ABS mode.
Locking the ABS/INC values
The ABS or INC modes can be locked/unlocked independently of each
other by depressing and holding the MODE key for 2 seconds.
Note: If option 2 is disabled in the programming mode, both ABS and
INC modes will always be in the locked state.
Pattern Adjustment (Multi-Pattern Mode)
Whenever the readhead is disconnected from its power source, or the
display is turned off, and the readhead is moved over a pattern joint, the
displayed reading may be one or more patterns (+ 430mm) in error when
power is restored. This may also occur if the readhead is moved too
quickly in Model 150/250 systems.
To correct the error, first make sure the display is not in LOCK mode.
Press and hold the MODE key along with either the PLUS or MINUS
keys to modify the pattern offset by one pattern length (430mm). Using
this procedure will result in NO LOSS OF ACCURACY to the system.
Position HOLD
The current state of the display may be "frozen" by activating the HOLD
function. The HOLD function is activated by momentarily pressing the
PLUS key while the LOCK feature is on. When in hold, the display will
display HOLD in the upper left corner. If the power is cycled, the HOLD
will be cleared. To turn off the HOLD feature, momentarily press the
PLUS key again.
45
Summary of Digital Display Keypad Functions
On/Off: Turns display on or off with each depression.
MODE: Function varies depending on operating state:
1. Selects absolute (ABS) or incremental (INC) mode of operation
during normal use by pressing for one second.
2. Press and hold for two seconds to lock the display.
3. Advances to next programming option while in programming mode.
4. Acts as a “SHIFT” key to execute special operations:
a) MODE and ZERO = programming mode entry/exit.
b) MODE and PLUS = add pattern in multi-pattern mode.
c) MODE and MINUS = subtract pattern in multi-pattern mode.
+ (PLUS):
1. Adds to position value in normal use.
2. Increments option value while in program mode.
3. Enables HOLD feature when LOCK is enabled.
Zero: Sets displayed position to zero in either ABS or INC (when
display is NOT locked).
- (Minus):
1. Subtracts from position value in normal use.
2. Decrements option value while in program mode.
Changing the Batteries (If battery equipped.)
To change the batteries, remove the two screws holding the cover to the
base of the display housing. Carefully pull off the cover. Remove the
batteries. Reinstall new ones, noting the proper orientation shown in the
battery compartment. Replace the cover and tighten the screws.
Note: DO NOT ATTEMPT TO BEND BATTERY CLIPS!
Mounting the Display
There are four small mounting holes in the back of the display which may
tapped for M2 or 4-40 screws. The display may also be mounted using
double sided tape or Velcro.
46
SECTION 4
MISCELLANEOUS
Installation Notes
Scales
Scales used for individual products should never be mixed. Try to avoid
drilling through the green portion of the scale. Any portion of the green
which is drilled will not operate.
Note: Shortening Model 150 or Model 250 scales is not advised.
Contact your supplier or Accurate Technology to order special
length scales.
To shorten the incremental scales for an application, follow these steps.
The scale is embedded with stainless-steel wires that could be damaged
if not cut properly.
1. Use a grinder (such as a Moto
1.9mm (.07)
Tool®) to grind through the
wires embedded in the sides of
the scale.
2. Using a hacksaw, cut through
6.3mm (.25")
the aluminum extrusion.
3. Use a file or sanding tool to
chamfer the cut end to the
specifications shown in the
illustration.
4. Remove all burrs.
5. Test the shortened scale by
sliding a readhead on. There
should not be any binding.
Readheads
Readheads used for individual products should NEVER be mixed. Avoid
making extension cables if possible. If a different cable length is
required, contact your supplier or Accurate Technology, Inc. The
pressure exerted on the readhead by the guide clip should never cause
the circuit board to press against the green strip on the scale, as this will
quickly wear out both components. See the diagram on page 19 for
more information about proper guide clip spacing.
47
Displays
The tables below show display options
that may be configured by the installer.
When shipped, displays are set to allow
the maximum number of options at
A
B
power-up.
To limit the available
Jumper
Positions
options, change the positions of the
internal jumpers.
When changing
jumpers, first note their factory positions. Lifting the plastic connector off
its two posts and repositioning to another two posts changes the
jumper’s position. The center post for each jumper setting is always
common. The tables below show options for displays. BOLD type
indicates factory default settings.
48
Incremental Display
Basic Display
Standard Display
Part #701-1495-002
Part #701-1495-001
Part # 701-1500-001
701-1495-00x
701-1500-001
38mm
113mm
78mm
87mm
Display Options
Jumpers
Jumper
JP1
JP3
JP4
JP5
JP7
Position
A
B
Function
Increased resolution
(Decimal inch mode only)
Normal resolution
A
B
A
Sets scaling direction
Sets scaling direction
Normal resolution
B
Reduced resolution
(Decimal and mm modes)
A
Normal display
B
Centimeters, decimal inches
and fractions
A
Scales shorter than 400mm
Scales longer than 400mm
B
JP2,
JP6,
JP8
ReadHead
Connector
Factory Settings
49
Notes
Display format:
XX.XXXX in. (99 inch limit)
Display format:
XXX.XXX in (394 inch limit)
XXXX.XX mm(9999 mm limit)
Positive readings
Negative readings
Display format:
XXX.XXX in (394 inch limit)
XXXX.XX mm (9999 mm limit)
Display format:
XXX.XX in (394 inch limit)
XXXX.X mm (9999 mm limit)
Display format:
XXX.XXX in (394 inch limit)
XXXX.XX mm (9999 mm limit)
Display format:
XX.XXXX in (99 inch limit)
XXX.XXX cm (999 cm limit)
Default for Model 150-10
Default for all other systems
Do not change
positions
SPC Display
Part # 701-1505-002
SPC Connector
ReadHead
Connector
38mm
113mm
78mm
87mm
Display Options
Jumpers
Jumper
JP1
JP3
JP4
JP5
JP7
JP2,
JP6,
JP8
Position
A
B
Function
Increased resolution
(Decimal inch mode only)
Normal resolution
A
B
A
Sets scaling direction
Sets scaling direction
Normal resolution
B
Reduced resolution
(Decimal and mm modes)
A
Normal display
B
Centimeters, decimal inches
and fractions
A
B
Scales shorter than 400mm
Scales longer than 400mm
Factory Settings
50
Notes
Display format:
XX.XXXX in. (99 inch limit)
Display format:
XXX.XXX in (394 inch limit)
XXXX.XX mm(9999 mm limit)
Positive readings
Negative readings
Display format:
XXX.XXX in (394 inch limit)
XXXX.XX mm (9999 mm limit)
Display format:
XXX.XX in (394 inch limit)
XXXX.X mm (9999 mm limit)
Display format:
XXX.XXX in (394 inch limit)
XXXX.XX mm (9999 mm limit)
Display format:
XX.XXXX in (99 inch limit)
XXX.XXX cm (999 cm limit)
Default for Model 150-10
Default for all other systems
Do not change
positions
Programmable Battery Display
Programmable Ext. Pwr. Display
# 701-1115-001
# 701-1115-002
Front & Side view of
external power connector
(if equipped)
This display must be programmed for preferences before use. All
programming is done through the keypad on the display face, and is
saved in non-volatile memory
38mm
113mm
78mm
87mm
ReadHead Connector
To enable the programming options, JP1 inside
the display must be set to the B position.
51
Panel Mount Display
Part # 701-1525-001
13mm
¼ DIN Panel Mount
Display
(105 mm square)
SIZE: Cutout
dimensions
should
measure at least 90mm
x 90mm and no larger
than 93mm x 93mm.
The displays will fit
panel
thickness
between 3mm and
19mm.
91mm
POWER:
24 VAC or 24 VDC @
100mA
10mm
Display Options
Jumpers
SPC
Connector
+ -
ReadHead
Connector
Power
Connector
24 volt powered panel mount Display Option Jumpers:
Jumper
JP1
JP2
Position
A
B
Function
No fractions.
Fractions available.
A
Sets scaling direction
B
Sets scaling direction
52
Notes
Decimal inches and mm only.
Decimal inches, mm, and
fractions all available.
Positive Vs Negative
readings
Negative Vs Positive readings
Panel Mount Display
13mm
Part # 701-1550-002
91mm
¼ DIN Panel Mount
Display
(105 mm square)
10mm
Display Options
Jumpers
ReadHead
Connector
Power
Connector
Jumper
JP1
JP3
JP4
JP5
JP7
JP2,
JP6,
JP8
Position
A
B
Function
Increased resolution
(Decimal inch mode only)
Normal resolution
A
B
A
Sets scaling direction
Sets scaling direction
Normal resolution
B
Reduced resolution
(Decimal and mm modes)
A
Normal display
B
Centimeters, decimal inches
and fractions
A
B
Scales shorter than 400mm
Scales longer than 400mm
Factory Settings
53
SIZE: Cutout dimensions
should measure at least
90mm x 90mm and no
larger than 93mm x 93mm.
The displays will fit panel
thickness between 3mm
and 19mm.
Notes
Display format:
XX.XXXX in. (99 inch limit)
Display format:
XXX.XXX in (394 inch limit)
XXXX.XX mm(9999 mm limit)
Positive readings
Negative readings
Display format:
XXX.XXX in (394 inch limit)
XXXX.XX mm (9999 mm limit)
Display format:
XXX.XX in (394 inch limit)
XXXX.X mm (9999 mm limit)
Display format:
XXX.XXX in (394 inch limit)
XXXX.XX mm (9999 mm limit)
Display format:
XX.XXXX in (99 inch limit)
XXX.XXX cm (999 cm limit)
Default for Model 150-10
Default for all other systems
Do not change
positions
ProPower DC Power Supply Part # 901-0200-001
ProPower is a multioutput DC power supply
for use with the
ProScale™ line of
electronic measurement
products.
ProPower can be used to
power up to 50 ProScale
LCD displays or 8
ProScale LED displays
Physical: Width 200mm Height 200mm Depth 120mm
Specifications
Input Power
•
110-120 VAC 60Hz.
•
220-240 VAC 50Hz.
•
24 VAC 50/60Hz.
•
24 VDC (3.3 volt DC output mode only).
•
6 volt dry cell battery only operation (3.3 volt DC output
mode only).
Output Power
•
Regulated 24 VDC @ 500 mA.
•
Regulated 3.3 VDC @ 100 mA.
•
Regulated 6 VDC @ 100mA. to charge sealed lead acid
battery.
•
•
•
•
•
Solid-state over-current protection on all outputs.
Transformer secondary over-current protection.
Multi-stage transient voltage protection.
24 VDC and 3.3 VDC LED operation indicators.
Industrial enclosure rated: NEMA 4, CSA LR 59132, IP 66
For more detailed operation of ProPower, See ProPower
Manual.
54
Frequently Asked Questions
Why is there an “Err 2” message on the display?
If the read head is off the scale, or the readhead cable is
unplugged from the digital display, an “Err 2” will appear on the
display. To clear error:
1.
Be sure the readhead is on the scale.
2.
Unplug the connector from the display for one second.
3.
Reconnect the readhead cable to the digital display.
Pressing ZERO, PLUS, or MINUS keys has no effect or causes the
display to change approximately 17 inches:
The keypad is locked. To unlock the keypad, momentarily press
and release the MODE key while holding down the ON/OFF key.
The ABS display is locked in the ABS mode.
The battery clips seem to be very loose. Is this normal?
Yes. DO NOT attempt to bend these clips or wedge anything
between them and the case. These clips are designed to
expand when the two case halves are screwed together.
Can I mount the scale/read head without the flex link/guide clip?
The flex link and guide clip serve to provide an accurate method
of transferring the movement of the moving part to the read
head, while also absorbing any stresses that may occur. If they
are not used, the warranty is voided.
The display reads numbers but they seem to be random.
Be sure the readhead is oriented correctly on the scale. One end
of the scale is black. Be sure that the arrow on the readhead
sticker is pointed in the correct direction.
Pressing the MODE key has no effect.
The display is in the INC mode. Return to ABS mode by
depressing and holding red button for three seconds.
The display does not change as the scale/readhead moves.
The display is in the HOLD mode. Press & release the Hold
(black) button.
55
Product Communication:
ProScale's electrical interface allows the readhead position to be read by
a computer or other instrument. Interface diagrams are available upon
request.
Error Codes & Factory Service
ProScale warns if an error occurs by displaying "Err" plus a number on
the display. If error code 0, 1, 2, 3, 5, 6, 7, or 8 is displayed:
1. Check to be sure the readhead is on the scale.
2. Check all connections and cable for damage.
3. If the readhead is on the scale and all connections are good, unplug
the readhead from the display , wait 3 seconds, and reinstall it.
If error code 4 is displayed, the display is trying to display fractions over
99 63/64". Switch to a decimal readout or press ZERO (and recalibrate)
if this value is incorrect.
For further assistance, contact your supplier, or Accurate Technology.
When calling for factory service, please have as much information about
your product on-hand. If possible, please have the following information:
1. Product name.
2. Any modification to the product.
3. The date of product purchase.
4. Detailed information about the problem, such as when, where, and
how the problem occurs, and the machinery being used nearby.
56
Abbe Error
Abbe error is a condition which may not be visible to the human eye, but
will affect linear measurements. Be sure to take precautions when
installing ProScale in order to eliminate the possibility for Abbe error.
Abbe error refers to a linear error caused by the combination of an
angular error and a dimensional offset between the sample and the
measuring system. It is important to understand that the information the
encoder is providing is only the position of the readhead on the scale.
To illustrate this, see the figure, which shows a linear measuring device.
(The apparent distortion in the measuring device is intentional - for this
example - to show the measuring device with a curvature in its
mounting.)
Suppose the curvature in the figure is sufficient to produce an angle of
40 arc-seconds. If the measuring device moves 10 inches, the probe will
be found to have moved 10.0039 inches, resulting in an error of +0.0039
inches. Abbe error could be lessened by moving the measuring system
closer to the sample. This effectively solves one half of the Abbe error
problem (offset) and leaves only the angular mounting problem to be
solved. Angular error can best be countered through proper design and
placement of the linear scale. Sources of angular error include:
1. Mounting the linear scale to an imperfectly flat surface.
2. Mounting the linear scale to an imperfectly straight surface.
3. Curvature of ways (or linear bearings) used to measure the sample.
4. Contaminants between the probe and item being measured.
5. Friction in any part(s) of the measuring device.
57
H
A
Abbe error, 26
ABS Position, 38
absolute, 7
absolute systems, 7
Accuracy, 12
Auto Save, 36
B
Batteries, 37
BATTERY CLIPS, 48
Battery Life:, 12
Bearing Adjustment, 32
C
Calibration, 16, 19
connector link, 14
Corner-To-Corner Measuring, 28
D
Decrementing, 36
DISPLAY, 6
Display Description, 33
Display Range, 12
E
Edge-To-Edge Measuring, 28
electrical interface, 59
Err 2, 58
error code, 59
extension cables, 49
F
fence, 22
Frequently Asked Questions, 58
G
guide clip, 19
Hold, 40
Hole-To-Hole Measuring, 29
I
INC Position, 39
Incremental, 7
Incrementing, 36
Introduction, 5
J
jaws, 30
jumpers, 51
K
Kerf, 41
L
linear error, 60
Locking, 47
Locking the Keypad, 36
M
Maintenance, 16
Measurement Kits, 10
Measurement Table Kit, 25
Minus, 48
MODE, 35, 48
Model 150, 10
Model 250, 10
Mounting, 14, 17
O
offset, 7
Output Format, 13
P
pattern, 7
Pattern Adjustment, 37
Reverse Scaling, 36
PLUS, 48
ProCaliper, 10, 30
ProCase, 11
Programming, 45
ProKits, 11, 24
ProLine, 11
ProPanel, 10, 28
ProPower, 11
ProScale Model 150, 14
ProScale Model 250, 17
ProSet, 11
ProStand, 11
ProStop, 10, 21
ProTable, 11
ProTOOL, 11
S
SCALE, 6
Setting Zero, 35
shorten, 49
Slew Rate, 12
sliding assembly, 25
SPC, 41
Specifications, 12
T
Table of Contents, 3
tearout, 21
R
W
random numbers, 58
READHEAD, 6
Relative Measurements, 32
Repeatability, 12
Warranty, 2
wing, 23
2
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