3M Projected Capacitive Near Field Imaging "NFI" Guide
C
EXPERIEN
•
GLOBAL
•
Projected Capacitive Near
Field Imaging
SOLUTIONS
Integration Guide
INNOVATIVE
•
EXPERIENCE DEPENDABLE
•
TM
(“NFI”)
GLOBAL
•
INNOVATIVE
•
DEPENDABLE
touch
3M Touch Systems Proprietary Information
Copyright
This manual is © 3M 2003. All rights reserved.
Reproduction of the contents of this copyrighted manual in whole or in part, by
any means, electronic or mechanical, for any purpose, without written permission
of 3M Touch Systems, a subsidiary of 3M, is prohibited.
Notice
Important notice to
purchaser
Given the variety of factors that can affect the use and performance of a 3M
Touch Systems Product (the “Product”), including that solid state equipment has
operation characteristics different from electromechanical equipment, some of
which factors are uniquely within User’s knowledge and control, it is essential
that User evaluate the 3M Touch Systems Product and software to determine
whether it is suitable for User’s particular purpose and suitable fo r User’s method
of application. 3M Touch Systems’ statements, engineering/technical
information, and recommendations are provided for User’s convenience, but
their accuracy or completeness is not warran ted. 3M Touch Systems products and
software are not specifically designed for use in medical devices as defined by
United States federal law. 3M Touch Systems products and software should not
be used in such applications without 3M Touch Systems’ express written
consent. User should contact its sales representative if User’s opportunity
involves a medical device application.
Specifications are subject to change without notice. These 3M Touch Systems’
Products and software are warranted to meet their published specifications from
the date of shipment and for the period stated in the specification. 3M Touch
Systems makes no additional warranties, express or implied, including but
not limited to any implied warranties of merchantability or fitness for a
particular purpose.
User is responsible for determining whether the 3M Touch Systems Products and
software are fit for User’s particular purpose and suitable for its method of
production, including intellectual property liability for User's application. If the
Product, software or software media is proven not to have met 3M Touch
Systems’ warranty, then 3M Touch Systems’ sole obligation and User’s and
Purchaser’s exclusive remedy, will be, at 3M Touch Systems’ option, to repair
or replace that Product quantity or software media or to refund its purchase price.
3M Touch Systems has no obligation under 3M Touch Systems’ warranty for any
Product, software or software media that has been modified or damaged through
misuse, accident, neglect, or subsequent manufacturing operations or assemblies
by anyone other than 3M Touch Systems. 3M Touch Systems shall not be liable
in any action against it in any way related to the Products or software for any
loss or damages, whether non-specified direct, indirect, special, incidental or
consequential (including downtime, loss of profits or goodwill) regardless of
the legal theory asserted.
Edition
July 2003. Document Number: 14116 (Rev. 3.0)
Trademarks MicroTouch, Near Field Imaging, and TouchSurround are trademarks of 3M.
Microsoft, Windows, MS-DOS, Windows NT, Windows 2000,
Windows XP, and/or other Microsoft products referenced herein are
either trademarks or registered trademarks of Microsoft Corporation in
the United States and/or other countries. JST is a registered trademark of
J.S.T. Mfg. Co., Ltd.
3M Touch Systems Proprietary Information
Intended use
Safety notices
Product Safety Information
The Near Field ImagingTM (NFI) touch screen system is composed of components
for incorporation in electrical or electronic apparatus, equipment or installations.
The NFI touch screen system has been tested to the standards that are cited in the
Appendix of this integration guide to show compatibility for use in products
requiring CE marking under the following directives: the EMC Directive
89/336/EEC, the Low Voltage Directive 73/23/EEC, and the Machinery Directive
89/392/EEC. Caution: Changes or modifications to this equipment not expressly
approved by the manufacturer could void the user’s authority to operate this
equipment.
The manufacturer of the end apparatus will, under their responsibility, comply
with the applicable Directives in design and construction.
WARNING
To reduce the risks associated with electrical shock or mechanical function which,
if not avoided, could result in death or serious injury and/or property damage:
Do not use a power cable that is damaged or frayed or a power plug that is damaged.
Do not use a damaged power supply.
Handle the power supply with care.
Do not service the NFI touch screen system. There no user serviceable parts. Refer all
servicing to qualified service personnel.
Safety labels
CAUTION
To reduce the risks associated with glass breakable which, if not avoided, may result
in minor or moderate cut-related injury:
Handle a touch screen with care to avoid breaking the glass. Be aware of cracked or
broken sensors with sharp edges.
CAUTION
To reduce the risks associated with environmental contamination which, if not
avoided, may result in minor or moderate injury and/or cause property damage:
Dispose of components in accordance with local, state, and federal regulations.
The following safety symbols appear on your NFI touch screen system or
packaging materials:
Symbol Meaning
Warning: Hazardous voltage
Caution: Item is susceptible to electrostatic discharge
(ESD) damage if proper precautions are not taken.
3M Touch Systems Proprietary Information
iii
Contents
Chapter 1 Overview.......................................................................... 1
Components............................................................................................ 1
Cleaning the touch screen ...................................................................... 2
Chapter 2 Mounting the touch screen............................................ 5
Critical information..................................................... ........................... 5
Steps for mounting an NFI touch screen ................................................ 7
TouchSurround
Chapter 3 Mounting the controller.................................................. 9
Critical information..................................................... ........................... 9
Materials required ................................................................................ 10
Steps for mounting an NFI controller .................................................. 11
Chapter 4 Making connections and resetting the baseline........ 13
Critical information: Connecting the tail .............................................13
Steps for connecting tail to controller.................................................. 14
Critical information: Connecting communications and power ............ 16
Steps for attaching power/communications cable................................17
Critical information: Resetting the baseline.........................................18
Steps for resetting baseline................................................................... 18
Chapter 5 Outdoor applications.................................................... 21
Critical information: Integrating with a metal bezel............................ 21
Critical information: Integrating with a plastic bezel........................... 25
Chapter 6 Troubleshooting............................................................ 27
Strategies..............................................................................................27
Interpreting the controller’s status lights..............................................29
Appendix Standards and certifications........................................ 31
TM
underlay (optional).................................................... 8
3M Touch Systems Proprietary Information
v
Components
CHAPTER 1
Overview
This chapter provides:
Description of the components of a typical MicroTouch
Capacitive Near Field Imaging
Guidelines for cleaning the touch screen
Terms used in the manual
3M contact information
TM
(“NFI”) touch screen system
The NFI touch screen system includes the following components:
NFI touch screen and tail. The touch screen is available in different sizes
and can be used with most flat panel displays or adapted to fit flat cathode ray
tube displays. The tail connects the touch screen to the controller.
TM
Projected
3M Touch Systems Proprietary Information
1
MicroTouch
TM
Near Field Imaging (NFI)TM Integration Guide
Touch screen controller. The controller decodes signals on the touch
screen. It has connectors for the touch screen tail and for communications/
power.
Floppy disk with linearization file (does not accompany 8.4-inch
screens). Linearization increases the accuracy of an NFI touch screen and
is required for screens larger than 8.4 inches. For details on linearizing, see
“Steps for resetting baseline”, starting on page 18.
Bar code sticker on the touch screen. The serial number provided on
the bar code stickers correspond to the linearization file that is installed (from
the floppy disk) when setting up the touch screen system.
The bar code sticker on the touch screen helps you to recognize which side
of the touch screen is the front side and which is the back side. If you are
looking at the printed side of the bar code sticker, you are looking at the front
of the touch screen.
You will need the serial number if it is ever necessary to:
Re-install the linearization file.
Contact 3M Touch Systems customer service.
Cleaning the touch screen
Follow these guidelines for cleaning the NFI touch screen:
To clean the touch screen’s back side, blow away dust with pressurized air.
To clean the front of the touch screen, use cleaning solutions and cloths
designed for cleaning coated optical glass (e.g., isopropyl alcohol and water
50:50 solution). Do not use any chemical that corrodes glass. Follow cleaner
manufacturer’s material safety data sheet (MSDS) and follow all instructions
and recommendations on product label.
Apply the cleaner with a soft, lint-free cloth. Avoid using gritty cloths.
Apply the cleaning liquid to the cloth, not directly to the screen.
Terms
These terms appear in this manual and may be unfamiliar.
This term Refers to
Baseline An electronic ‘picture’ of the touch screen and its immediate
Display area The part of the touch screen that is positioned over the product’s
Continuous frame Gasket material that has no ends.
Metallized bezel Plastic bezel with conductive material applied to its interior.
Near Field Imaging
(NFI)
Opaque area A narrow border around the perimeter of the touch screen
Touch sensitive area Part of touch screen’s viewing area that will register a touch.
Viewing area The part of the touch screen that is within the opaque area.
3M Touch Systems Proprietary Information
surroundings. Baseline must be reset after any physical or
mechanical change is made to the NFI touch screen integration
or system. With an up-to-date baseline, the touch screen system
performs more accurately and efficiently.
display. Touches in the display area emulate the movements
and actions of a mouse.
A touch screen that uses a proprietary imaging technique to
generate a precise profile of a touch from changes in the
electrostatic field near to the point of contact.
(usually silver-grey or black) that does not register touches.
Sometimes called “the guard”.
2
3M Touch Systems support services
3M Touch Systems provides extensive support services through our website and
technical support organization. Visit the 3M Touch Systems website at
www.3Mtouch.com
obtain regularly updated technical documentation on 3M Touch Systems
products, and learn more about our company.
Whenever you contact Technical Support, please provide the following
information:
Part number and serial number
Current driver version
Operating system used
Information on additional peripherals
Technical Support is available Monday through Friday 8:00 a.m. to 8:00 p.m.
US Eastern Standard Time, 9:00 a.m. to 5:00 p.m. throug hout Europe. There is
limited service on Saturdays and Sundays.
You can contact 3M Touch Systems Technical Support (US only — Eastern
Standard Time) by calling the hot line or sending a fax:
Technical Support Hot Line: 978-659-9200
Technical Support Fax: 978-659-9400
Toll Free: 1-866-407-6666
Email: US-TS-techsupport@mmm.com
, where you can download touch screen software and drivers,
Overview
3M Touch Systems worldwide offices
All offices can be reached through the website: www.3Mtouch.com.
Country Telephone
United States 978-659-9000
Australia 61-3-9582-4799
Canada 604-521-3962
France 33-(1)-30-31-68-32
Germany 49-(0)-2131-14-4003
Hong Kong/China 852-2333-6138
Italy 39-(0)-39-230-2230
Japan 81-(4)-4811-1133
Korea 822-552-3198
Singapore 65-6450-8851
Spain 34-934-15-6285
Taiwan 886-2-2704-9011
3M Touch Systems Proprietary Information
3
CHAPTER 2
Mounting the touch screen
This chapter outlines:
Critical information to help you mount the touch screen successfully.
Step-by-step mounting instructions.
Basic information on the TouchSurround
If you are integrating the touch screen in an outdoor application:
Using a metal bezel, see additional instructions starting on page 21.
Using a plastic bezel, see additional instructions on page 25.
Critical information
Prevent interference
Mount the touch screen as far away as possible from:
Components (such as radios) that generate a signal in the 50 kHz to 60 kHz
AC sources and backlight inverters (unless there is intervening grounded
TM
range (unless they are adequately shielded).
metal work or shielding).
underlay.
Observe minimum mounting clearances
Minimum mounting clearances are shown in Table A to help in tegrators make
mounting decisions that will minimize capacitive loading on the touch screen and
tail. Read Table A while referring to Figure 1 or Figure 2 (whichever figure
applies to your mounting materials).
3M Touch Systems Proprietary Information
5
MicroTouchTM Near Field Imaging (NFI)
TM
Integration Guide
Display
Metal bezel
Metal clamp
Spacer (Non-
NFI touch
screen
C
conductive)
B
A
Front
Gasket (Non-
conductive)
Figure 1: Mounting (using metal bezel) with metal clamp (Top View)
Metal bezel
D
NFI touch
screen
Display
C
A
Front
Adhesive
Figure 2: Mounting (using metal bezel) with adhesive (Top View)
T able A: Minimum mounting clearances (Use this table with Figure 1
Screen size
8.4" 10.4" 12.1" 15.0" 18.1"
A
— Front of touch screen to
inside lip of bezel
B
— Front of clamp to back of
touch screen
C
— Display to back of touch
screen
D
— Side of bezel to edge of
touch screen
Viewing area & bezel opening: See NFI touch screen drawings on 3M Touch Systems website: www.3Mtouch.com
0.020"
(0.5 mm)
0.020"
(0.5 mm)
0.060"
(1.5 mm)
0.030"
(0.8 mm)
0.020"
(0.5 mm)
0.030"
(0.8 mm)
0.070"
(1.8 mm)
0.030"
(0.8 mm)
0.020"
(0.5 mm)
0.035"
(0.9 mm)
0.080"
(2.0 mm)
0.030"
(0.8 mm)
or Figure 2)
0.020”
(0.5 mm)
0.045"
(1.1 mm)
0.100"
(2.5 mm)
0.030"
(0.8 mm)
0.030"
(0.8 mm)
0.060"
(1.5 mm)
0.120"
(3.1 mm)
0.030"
(0.8 mm)
3M Touch Systems Proprietary Information
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