Elo TouchSystems 1925L Series manual Positional Accuracy

Table 0.1 AccuTouch Touchmonitor Specifications

Mechanical

Construction	Top: Polyester with outside hard-surface coating with clear or
	antiglare finish.
	Inside: Transparent conductive coating.
	Bottom: Glass substrate with uniform resistive coating. Top and
	bottom layers separated by Elo-patented separator dots.
Positional Accuracy	Standard deviation of error is less than 0.080 in. (2.03 mm). This
	equates to less than ±1%.

Touchpoint Density

Touch Activation Force

Surface Durability

Expected Life

Performance

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

Typically less than 4 ounces (113 grams).

Meets Taber Abrasion Test (ASTM D1044), CS-10F wheel, 500 g. Meets pencil hardness 3H.

AccuTouch technology has been operationally tested to greater than 35 million touches in one location without failure, using a stylus similar to a finger.

Optical

Light Transmission	Typically 75% at 550-nm wavelength (visible light spectrum).
(per ASTM D1003)
Visual Resolution	All measurements made using USAF 1951 Resolution Chart, under
	30 X magnification, with test unit located approximately 1.5 in. (38
	mm) from surface of resolution chart.
	Antiglare surface: 6:1 minimum.
Haze (per ASTM D1003)	Antiglare surface: Less than 15%.
Gloss (per ASTM D2457)	Antiglare surface: 90 ± 20 gloss units tested on a hard-coated front
	surface.

C-38E l o E n t u i t i v e T o u c h m o n i t o r U s e r G u i d e