3M MicroTouch Near Field Imaging (NFI), Integration Manual

Page 1: ...3M Touch Systems Proprietary Information touc S OLUTIONS DEPENDABLE INNOVATIVE GLOBAL EXPERIENCE DEPENDABLE INNOVATIVE GLOBAL EXPERIEN Projected Capacitive Near Field ImagingTM NFI Integration Guide ...

Page 2: ... 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 fo...

Page 3: ... NFI touch screen system or packaging materials 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 scre...

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Page 5: ...onnections 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 bez...

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Page 7: ...reen system Guidelines for cleaning the touch screen Terms used in the manual 3M contact information Components 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 ...

Page 8: ...eaning 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 term...

Page 9: ...ort 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 throughout 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 Emai...

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Page 11: ...nstructions 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 range unless they are adequately shielded AC sources and backlight inverters unless there is intervening grounded metal work or shielding Observe minimum mounting clearances Minimum mounting clearances are show...

Page 12: ...Metal bezel Display NFI touch screen Front Adhesive Screen size 8 4 10 4 12 1 15 0 18 1 A Front of touch screen to inside lip of bezel 0 020 0 5 mm 0 020 0 5 mm 0 020 0 5 mm 0 020 0 5 mm 0 030 0 8 mm B Front of clamp to back of touch screen 0 020 0 5 mm 0 030 0 8 mm 0 035 0 9 mm 0 045 1 1 mm 0 060 1 5 mm C Display to back of touch screen 0 060 1 5 mm 0 070 1 8 mm 0 080 2 0 mm 0 100 2 5 mm 0 120 3 ...

Page 13: ... an NFI touch screen into a bezel the touch screen must be detached from the bezel and adhesive to be returned to 3M Touch Systems under warranty If your application requires an exceptional seal to prevent moisture or dust entering the bezel please see instructions for outdoor applications in Chapter 5 Steps for mounting an NFI touch screen For specific information on mounting a touch screen outdo...

Page 14: ...ormation 8 TouchSurroundTM underlay optional A TouchSurround underlay can be fitted behind an NFI touch screen when the touch screen is larger than the display to allow part of the touch screen to be used to define keys such as the ones on a keyboard Figure 3 Figure 3 TouchSurround underlay ...

Page 15: ...s mounted by at least 0 25 inches 6 4 mm beyond the outline of the controller If the controller is above a grounded continuous metal surface place it no less than 0 10 inches 2 5 mm and no more than 0 30 inches 7 6 mm from that surface Avoid contact with shields Make sure that nothing touches the top or bottom shields Figure 5 on page 11 Prevent interference Minimize electromagnetic interference S...

Page 16: ...may be substituted Make sure the washers are small enough that they do not touch the circuitry surrounding them see Figure 5 on page 11 and Figure 6 on page 11 1 grounding wrist strap Figure 4 Dimensions of controller 0 2 5 1 mm 0 2 5 1 mm 0 2 5 1 mm 0 2 5 1 mm Overall height 0 32 8 1 mm 0 2 5 1 mm 0 2 5 1 mm 0 24 6 1 mm 5 50 139 7 mm 1 53 38 9 mm 3 77 95 8 mm 5 10 129 5 mm 2 75 69 9 mm 0 125 3 2 ...

Page 17: ...any built up static 2 Locate the mounting holes on the NFI controller Figure 5 Figure 5 Controller s mounting holes grounding mounting hole 3 Insert the screws and washers into the mounting holes Take care to not short out the surrounding circuitry with either the screws or washers Tighten the screws so that the controller is firmly in place and the washers will not move Figure 6 Mounting controll...

Page 18: ...ontroller using stand off Figure 8 Grounding controller using cable 5 Make sure that the grounding cable compression washer and metal grounding screw do not touch or short out the surrounding circuitry Metal grounding screw Controller Metal compression washer Grounded stand off 90076_2003_a To achieve grounding useonly grounding screw hole Grounding screw hole Grounding screw hole Metal grounding ...

Page 19: ...less components are adequately shielded AC sources such as backlight inverters and high voltage switching noise If this is not possible make sure the AC or noise source is appropriately shielded and grounded Conductive surfaces at least 0 10 inches 2 5 mm away If the tail must run along a large conductive metal surface keep it at least 0 10 inches 2 5 mm from the surface and make sure that it cann...

Page 20: ...h the bar code visible is face up 3 Remove the controller from its ESD protected plastic envelope Make sure that the major electronic components are face up 4 Use two fingers to gently pull out the retaining clip so that it protrudes slightly from the controller s connector To protect the retaining clip from damage do not remove it completely Figure 10 Figure 10 Pulling out retaining clip from tou...

Page 21: ...h the shiny side up between the retaining clip and the connector on the controller Make sure that the tail is seated straight and fully inserted in the connector Figure 12 Figure 12 Attaching tail 7 With a finger on each side of the retaining clip push it until the retaining clip fits snugly inside the connector Figure 13 Figure 13 Pushing retaining clip into connector Conductive side 90079_2003 C...

Page 22: ...isolate the power and other cables by using a ferrite core Use an RS 232 power communications cable To connect the controller a standard RS 232 power communications cable is required An NFI RS 232 power communications cable which comes with stripped flying leads is available from 3M Touch Systems This cable can then be completed to fit the power supply and communications requirements of your appli...

Page 23: ...r on controller Table C Pin out for RS 232 power communications cable Controller Pin Controller Function Controller In Out Connector Pin 1 Unused Unused Unused 2 SGND RS 232 signal ground 5 DB9 female Connector 3 RXD RS 232 receive IN 3 DB9 female Connector 4 TXD RS 232 transmit OUT 2 DB9 female Connector 5 _RST Reset active low TTL logic level leave unconnected if not used IN If needed user defin...

Page 24: ...gaskets mounting or re mounting the unit When you reset the baseline an electronic picture is taken of the touch screen and its immediate surroundings To ensure that the baseline is reset successfully make sure that nothing is touching the screen bezel or controller during the baselining process Steps for resetting baseline There are different procedures for resetting the baseline depending on whi...

Page 25: ... drivers 1 From the Windows desktop select Start Programs Touch Screen Utilities NFI Setup Wizard 2 Select Next to start the Wizard 3 Select Next and then select Start to begin setting the baseline 4 Select Next if baselining was successful 5 Select Next 6 Select Cancel linearization data is not required to reset the baseline 7 Select No to confirm that you do not want to download linearization da...

Page 26: ...seline A message will appear on the screen after the baseline has been successfully reset 7 The touch screen must be re aligned after the baseline is reset 8 At the MS DOS prompt type ECAL and then press Enter Follow the on screen instructions to re align the touch screen When aligning be sure you are directly in front of the touch screen Use a finger or alignment tool to align the touch screen An...

Page 27: ...n elsewhere in this manual this chapter takes precedence Critical information Integrating with a metal bezel Prevent electrical shorts The top priority when integrating an NFI touch screen into an outdoor application is to prevent water from shorting the 55khz signal on the touch screen to the grounded bezel This is especially important when using a metal bezel to integrate outdoors as is assumed ...

Page 28: ...learances Screen size 8 4 10 4 12 1 15 0 18 1 A Front of touch screen to inside lip of bezel 0 020 0 5 mm 0 020 0 5 mm 0 020 0 5 mm 0 020 0 5 mm 0 030 0 8 mm B Front of clamp to back of touch screen 0 020 0 5 mm 0 030 0 8 mm 0 035 0 9 mm 0 045 1 1 mm 0 060 1 5 mm C Display to back of touch screen 0 060 1 5 mm 0 070 1 8 mm 0 080 2 0 mm 0 100 2 5 mm 0 120 3 1 mm D Side of bezel to edge of touch scre...

Page 29: ...f you choose to use foam adhesive it is preferable to purchase it in a large square and then cut it to create a continuous frame that fits your touch screen and bezel This method is the best way of creating a moisture resistant seal when using this type of adhesive Do not use PSAs pressure sensitive adhesives for outdoor applications PSAs will eventually deteriorate and admit water between the tou...

Page 30: ...ed Mount the touch screen system bezel and touch screen as vertically as possible To give the touch screen extra protection from precipitation and direct sunlight design and install a canopy over the touch screen Direct sunlight can cause the display to become very hot and may reduce the display s life expectancy To help prevent moisture from collecting on the unit you may want to consider designi...

Page 31: ...allized painted area Figure 20 Figure 21 and Figure 22 Apply the grounded metallization past the edge of the touch screen This prevents interference with the touch screen from objects near or touching the bezel Figure 20 Metallizing a plastic bezel Ground the metallized area through screws that attach to the bezel Observe minimum mounting clearances Table E on page 26 Note The mounting clearances ...

Page 32: ...rom edge of plastic bezel Grounded metallization Metallization extends beyond touch screen Table E Minimum mounting clearances Screen size 8 4 10 4 12 1 15 0 18 1 A Front of touch screen to inside lip of bezel 0 020 0 5 mm 0 020 0 5 mm 0 020 0 5 mm 0 020 0 5 mm 0 030 0 8 mm B Front of clamp to back of touch screen 0 020 0 5 mm 0 030 0 8 mm 0 035 0 9 mm 0 045 1 1 mm 0 060 1 5 mm C Display to back o...

Page 33: ...port services on page 3 Check integration procedures The information below regarding integration is not a substitute for the detailed information in Chapters 2 Chapter 3 Chapter 4 and Chapter 5 Check the way the touch screen is mounted to be sure that Touch screen and tail are mounted securely so they do not move when the touch screen is used Tail is inserted correctly between the retaining clip a...

Page 34: ...gies below The NFI touch screen system can radiate radio frequency energy Some communication devices may also cause harmful interference to the NFI touch screen system Re orient or relocate the TV or radio antenna Increase the distance between the touch screen system and TV or radio Connect the touch screen system to a different outlet on a circuit different from that of the TV or radio Consult th...

Page 35: ...is touched and DS3 does illuminate see Strategies for DS3 below If DS2 is flashing rapidly faster than one per second the baseline may need to be reset see Reset the baseline on page 28 DS3 Unreadable Touch Red light Illuminates briefly when controller detects an unreadable touch Occasional illumination of DS3 is not cause for concern If DS3 is solidly lit the touch screen system may be shorted ou...

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Page 37: ... standards Tests were successfully conducted on a sample of the equipment for the purpose of demonstrating EMC compliance with EN 50081 1992 Generic Emission Standard FCC CFR 47 Part 15 Subpart B and ICES 003 see FCC compliance note below Evaluated to UL CSA 60950 EN 60950 UL Recognized Component File E 217706 Evaluated for use with a Class 2 limited power source CSA C22 2 No 94 M91 Special Purpos...

Page 38: ...e separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help Electromagnetic compatibility immunity standards Tests were successfully conducted on a sample of the equipment for the purpose of demonstrating EMI compliance with EN 61000 6 2 Gen...

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Page 40: ...Carleton Court Annacis Island New Westminster B C Canada V3M 6L3 www 3Mtouch com Worldwide Manufacturing Plants Methuen Massachusetts Milwaukee Wisconsin Vancouver BC Canada 3M 2003 MicroTouch Near Field Imaging and TouchSurround are trademarks of 3M ...