Specifications

Elo TouchSystems (800) ELO-TOUCH or [phone] • Fax [phone] • www.elotouch.com
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AccuTouch technology
Formed to fit the shape of a display, the AccuTouch glass
panel has a coating of uniform resistivity. A polyester cover
sheet is tightly suspended over the top of the glass,
separated from it by small, transparent insulating dots. The
cover sheet has a hard, durable coating on the outer side
and a conductive coating on the inner side. At a light touch,
the conductive coating makes electrical contact with the
coating on the glass.
The AccuTouch controller circuit applies a voltage gradient
across the resistive surface of the glass. The voltages at the
point of contact are the analog representation of the position
touched. The controller digitizes these voltages and
transmits them to the computer for processing.
AccuTouch benefits
• Five-wire resistive technology
• Stable, drift-free operation—for touch response that’s
always accurate
• Highest touchpoint density in the industry
• Fast touch response
• Finger, gloved-hand, and stylus activation
• Durable surface that stands up to harsh contaminants and
chemicals
• Gasket-sealable construction
• Flat and spherical touchscreen options for design
flexibility
• Sealability—certified to NEMA standards; designed to
meet industrial standards
AccuTouch products—
for clerk- or
employee- activated applications
• Point-of-sale terminals
• Industrial process control
• Handheld computers
• Medical equipment
• Internet phone
•Office automation
•Transportation
Glass
substrate
Conductive
coating
Conductive coating
Flexible
hard-coated
outer membrane
Insulating
spacer dots
Ry
Rx
0 volts
+5 volts
X-voltage
Y-voltage
AccuTouch: Five-Wire Resistive Technology
Accuracy ± 2.03 mm
Response time <10 ms
Resolution 4096 x 4096 touchpoints
Light transmission Up to 80%
Operating temperature –10°C to 50°C
Storage temperature –40°C to 71°C
Sealability UL/cUL recognized to NEMA 4/4X/12;
designed to meet
IP56
Expected life Tested to over 35 million touches
on one spot without failure
Chemical resistance Tested with acetone, methylene,
isopropyl-alcohol, ammonia-based
glass cleaner, and others
AccuTouch Performance