Elo TouchSystems 1528L user manual Mechanical, Light Transmission per Astm D1003 Visual Resolution

Table 7 IntelliTouch (surface acoustic wave) Technology Touchscreen Specifications

Mechanical

Positional Accuracy

Touchpoint Density

Touch Activation Force

Surface Durability

Expected Life

Performance

Sealing

Optical

Standard deviation of error is less than 0.080 in. (2.03 mm). Equates to less than ±1%.

More than 100,000 touch points/in2 (15,500 touch points/cm2).

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. IntelliTouch 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.

Light Transmission (per ASTM D1003)

Visual Resolution

90%

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.

Gloss (per ASTM D2457	Antiglare surface: Curved: 60 ± 20 gloss units or 75 ± 15
using a 60-degree gloss	gloss units.
meter)
Environmental
Chemical Resistance	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
Electrostatic Protection	Meets Level 4 (15 kV air/8 kV contact discharges).
(per EN 61 000-4-2, 1995)

User Manual: 1528L

SW200095 Rev A, Page 32 of 39