Elo TouchSystems ET 1525C Series User Manual page 36

Table C.1 iTouch Touchscreen Specifications
Mechanical
Positional Accuracy
Touchpoint Density
Touch Activation Force
Surface Durability
Expected Life
Performance
Sealing
Optical
Light Transmission (per
ASTM D1003)
Visual Resolution
Environmental
Chemical Resistance
Electrostatic Protection
(per EN 61 000-4-2, 1995)
Standard deviation of error is less than 0.080 in. (2.03 mm). Equates to less
than ±1%.
More than 100,000 touchpoints/in
Typically less than 3 ounces (85 grams).
Surface durability is that of glass, Mohs' hardness rating of 7.
No known wear-out mechanism, as there are no layers, coatings, or moving parts.
iTouch technology has been operationally tested to more than 50 million touches in
one location without failure, using a stylus similar to a finger.
Unit is sealed to protect against splashed liquids, dirt, and dust.
100%
All measurements made using USAF 1951 Resolution Chart, under 30X
magnification, with test unit located approximately 1.5 in (38 mm) from surface of
resolution chart.
Clear surface: Excellent, with no noticeable degradation.
Antiglare surface: 6:1 minimum.
The active area of the touchscreen is resistant to all chemicals that do not affect
glass, such as:
Acetone
Toluene
Methyl ethyl ketone
Isopropyl alcohol
Methyl alcohol
Ethyl acetate
Ammonia-based glass cleaners
Gasoline
Kerosene
Vinegar
Meets Level 4 (15 kV air/8 kV contact discharges).
2
(15,500 touchpoints/cm
2
).
C-27