ClearTek3000Profile - 3M Touch Systems

The Profile sensor, MicroTouch’s innovative design for flat capacitive touchscreens, incorporates

advanced design and production techniques that result in the highest quality capacitive touch-

screen on the market. Profile’s thin, sleek design provides ease-of-installation for LCD panels

and flat panel displays. The narrow border and wide viewing area, combined with the

unmatched durability, reliability, and optical clarity, make Profile the ideal choice for public

access and business applications.

Profile incorporates ClearTek®3000’s ultra-smooth overcoat, which dramatically increases

physical durability by resisting scratches and abrasions to the touchscreen surface and sets

new standards in environmental robustness.

Profile Sensor Construction

Profile touchscreens are constructed of an all-glass flat sensor with a transparent, thin-film con-

ductive coating applied to its top and bottom surfaces. A very narrow electrode pattern is printed

along the edge on the conductive layer with a sealing glass applied over the pattern for protection.

A transparent glass overcoat (ClearTek 3000) is fused over the conductive coating to protect and

seal the sensor. The ClearTek 3000 coating features CleanScreen, which controls the growth of bac-

teria and other microorganisms on the surface of the touch-

screen — an antibacterial agent. The glass sensor can also be

treated to provide the suitable clarity and anti-reflective proper-

ties for specific touchscreen applications.

How ClearTek 3000 Works

Voltage is applied to the screen (1) and the electrode pattern

uniformly distributes a low-voltage field (2) over the conductive

layer. When a finger touches the screen (3),it “capacitively

couples” with the voltage field, drawing a minute amount of

current to the point of contact. The current flow from each

corner is proportional to the distance from the corner to the

finger.The controller simply calculates the flow proportions to

locate the x and y coordinate of the touch (4).

ClearTek 3000 Profile

FLAT CAPACITIVE TOUCHSCREENS

Profile Touchscreen

Profile Sensor Construction

How ClearTek 3000 Works

SPECIFICATIONS

ClearTek 3000 Profile Technical Specifications

ELECTRICAL

Technology Capacitive

Accuracy Less than ±1% error within the active area

OPTICAL

Touchscreen Resolution 1024 touch points per axis within the calibrated area

Optical Clarity Up to 88% light transmission at 550 nm

Surface Finishes True AR etch

Industrial etch

Polished finish

Optical Coating ClearTek 3000, a protective glass overcoat that protects the sensor by

resisting scratches and increasing durability

MECHANICAL

Initial Touch Down Speed 8-15ms

Touch Contact Requirement As low as 3ms

Conversion Speed Up to 200 touch points per second at 19.2K baud

Dynamic Range Positional variation of ±2% (anywhere on screen) when capacitive

load varies

Linearization Factory linearization values are stored in the NOVRAM of the

controller or optional adapter cable

Construction Glass sheet with transparent conductive coating beneath glass over-

coat. Electrodes printed on perimeter and protected by sealing glass.

Glass Thickness 0.125" (±0.01") / 3.18mm (±.25mm) standard. (Not including height of

tail attachment. Contact application engineering for further details.)

Size and Shape Offered in many standard sizes. (Custom sizes also available.) Aspect

ratios available up to 2:1

Perimeter Electrode Width Tail side .37"; side opposite tail .17", remaining two sides .24"

Ta i l 4.3" or 6" shielded tail with 5-pin connector

Surface Durability Cannot be scratched using any stylus with Mohs’ rating of 6.5. Exceeds

severe abrasion test per MIL-C-675C.Withstands 10,500 grams of

force per Balance Beam Scrape Adhesion Mar Tester, Paul N. Gardner

Co. model PA-2197 using a loop stylus (0.128 in. O.D. Rockwell

Hardness 55-61). MicroScratch tester with 10 micron radius tungsten

carbide indenter takes a force of 1.8 Newtons.

RELIABILITY

Touch Life Coating shows no surface degradation in any touch location at 225

million touches

Antibacterial Protection CleanScreen safely and effectively controls bacteria and other

microorganisms that come in contact with the touchscreen

Electrode Durability Fused into glass.Will not be damaged during installation

Surface Obstructions Touchscreen operation unaffected by surface obstructions such as dirt,

dust, grease, smoke, soda, etc.

Chemical Resistance ClearTek 3000 is highly resistant to corrosives, in accordance with

ASTM-D-1308-87 (1993) and ASTMD-F-1598-95. Details on next page.

Liquid Resistance Liquids on screen do not impede touchscreen performance

Liquid Repellence Contact angle of 94° and greater using Sessile Drop Contact Angle

Method rendered screen extremely water repellent

Operating Temperature -15°C to 70°C for touchscreen

Storage Temperature -50°C to 85°C for touchscreen

NEMA Rating NEMA-sealable

Gasketing Complete water-resistant seal obtainable with polyethylene gasket

Cleaning Water, isopropyl alcohol, and similar non-abrasive cleaners

Profile Tail

ClearTek 3000 Profile Technical Specifications

CONTROLLER

Controller Options See ClearTek Controller Specification Sheet

SUPPLEMENTAL DOCUMENTATION

ClearTek Controller Specification Sheet, CleanScreen Technology Brief

Chemical Resistance Tests

Touchscreens are exposed to various environments where chemicals, household cleaners, or indus-

trial cleaners come in contact with the screen. ClearTek 3000 is constructed of a glass layer and a

glass overcoat. The glass overcoat resists scratches and can be configured with a polished or anti-

glare finish. The following tests measure the resistance of ClearTek 3000 to a variety of chemicals.

Test Objective. The glass overcoat has been tested to resist the following chemicals.

Test Goal. To document which chemicals are compatible with the glass overcoat.

Test Methods.ASTMD-F-1598-95 and ASTMD1308-87 (1993)

Test 1

ASTMD-F-1598-95 tests for chemical resistance effects of solvents and reagents. After a 10-minute

spot test, no evidence of physical damage and all samples met the requirements of post chemical

functional tests.

6% Hydrochloric Acid Acetone Toluene Gasoline

70% Nitric Acid Brake Fluid Xylene

40% Sulfuric Acid 10% Sodium Hydroxide Windex

Test 2

ASTMD-F-1598-95 tests for chemical resistance effects of volatile liquids. After a 10-minute spot

test, no evidence of physical damage and all samples met the requirements of post chemical func-

tional tests.

5% Ammonia Ethanol Trichloroethyene

Methyl ethyl ketone (MEK) Gasoline 10% Caustic Soda

70% Nitric Acid Acetone Xylene

Windex

Test 3

ASTM-D-1308-87 (1993) tests for household chemicals. After 24-hour spot test no evidence of

physical damage after chemical testing and all samples met requirements of post chemical

functional tests.

Beer Tea Coffee Coca-Cola Lipstick

White Vinegar Caustic Soda Grease Pencil Stamping Ink Ball Point Ink

Naptha Lysol Rubber Cement

ClearTek 3000 Profile Technical Specifications

CT3KPROFILE-0002-0101

For information about implementing MicroTouch touch technology into your next project, contact us at:

MicroTouch Systems, Inc.

300 Griffin Brook Park Drive

Methuen, MA 01844

U.S.A.

Phone: 978.659.9000

Fax: 978.659.9100

E-mail: touch@microtouch.com

Web site: www.microtouch.com

MicroTouch Systems, Inc. All other trademarks and registered trademarks are the property of their respective owners. All

Rights Reserved. Produced in the USA.The CleanScreen technology protects the screen and provides a more hygienic surface

by resisting contamination. It does not prevent disease or infection.

www.microtouch.com touch @microtouch.com

Worldwide Offices

China

France

Germany

Italy

Japan

Korea

Singapore

Spain

Taiwan

United Kingdom

United States

The information provided in this brochure is intended as a guide only. For detailed engineering specifications,

please contact your MicroTouch Systems Application Engineer. MicroTouch Systems is committed to

continually improving product designs, as a result product specifications may be subject to change

without notification.

CORPORATE PROFILE

Global company committed to the

innovation and application of

touchscreen technology

Founded in 1982

Public company (NASDAQ: MTSI)

1999 sales of $157.5 million

The Hygienic Touchscreen

In public access environments — such as ATMs, kiosks, and gaming machines — where technology is

shared on an daily basis or industries where cleanliness is critical such as medical and foodservice,

ClearTek 3000 features CleanScreen™,Antibacterial Protection for Touchscreens. CleanScreen safely

and effectively controls the growth of bacteria and other microorganisms on the touchscreen by

bonding the EPA-registered AEGIS Microbe Shield to the surface of the touchscreen. AEGIS’

Microbe Shield provides long-term, effective control of microorganisms which are commonly

associated with human health problems.

The MicroTouch Difference

When you partner with MicroTouch for your touchscreen needs, you benefit from the industry’s best

combination of service, warranties, and support.

Five-Year Warranty

MicroTouch products come with a five-year warranty on all touchscreen components.

Around-the-World Service and Support

When you need product information quickly or new software drivers, you can reach us through our Technical

Assistance telephone support line, Web site, or e-mail. We’re never out of touch.

A Commitment to Quality

MicroTouch’s headquarters manufacturing facility is ISO 9001-certified. Our numerous quality groups,

inspections, and executive involvement are just some of the MicroTouch quality initiatives that ensure the

product you receive is the most reliable in the industry.