Tyco Electronics ET1528L manual Mechanical, Optical, Environmental

Table 7 IntelliTouch (surface acoustic wave) Technology Touchscreen Specifications

Mechanical

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

Touchpoint Density

Touch Activation Force

Surface Durability

Expected Life Performance

Sealing

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.

Optical

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 using a 60-degree gloss meter)

Antiglare surface: Curved: 60 ± 20 gloss units or 75 ± 15 gloss units.

Environmental

Chemical Resistance

Electrostatic Protection (per EN 61 000-4-2, 1995)

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).

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