Elo TouchSystems ET1725C Guide de l'utilisateur télécharger pdf (Page 36)

C-29

Mechanical

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

than ±1%.

Touchpoint Density More than 100,000 touchpoints/in

(15,500 touchpoints/cm

Touch Activation Force Typically less than 3 ounces (85 grams).

Surface Durability Surface durability is that of glass, Mohs’ hardness rating of 7.

Expected Life

Performance

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.

Sealing Unit is sealed to protect against splashed liquids, dirt, and dust. See IntelliTouch

Product Manual for details.

Optical

Light Transmission (per

ASTM D1003)

90%

Visual Resolution 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)

Clear surface: N/A

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

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

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

Meets Level 4 (15 kV air/8 kV contact discharges).

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Elo TouchSystems ET1725C Guide de l'utilisateur Page 36

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