Elo TouchSystems 2125C Series instruction

Table C.2 AccuTouch Touchmonitor Specifications

Positional Accuracy	Standard deviation of error is less than 0.080 in. (2.03 mm). This equates to less
	than ±1%.
Touchpoint Density	More than 100,000 touchpoints/in² (15,500 touchpoints/cm²).
Touch Activation Force	Typically less than 4 ounces (113 grams).
Surface Durability	Meets Taber Abrasion Test (ASTM D1044), CS-10F wheel, 500 g. Meets pencil
	hardness 3H.
Expected Life Performance	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.
	Clear surface: N/A
	Antiglare surface: 6:1 minimum.
Haze (per ASTM D1003)	Clear surface: Less than 1.5%.
	Antiglare surface: Less than 15%.
Gloss (per ASTM D2457)	Clear surface: N/A
	Antiglare surface: 90 ± 20 gloss units tested on a hard-coated front surface.
Environmental
Chemical Resistance	The active area of the touchscreen is resistant to the following chemicals when
	exposed for a period of one hour at a temperature of 21°C:
	Acetone
	Methylene chloride
	Methyl ethyl ketone
	Isopropyl alcohol
	Hexane
	Turpentine
	Mineral spirits
	Unleaded gasoline
	Diesel fuel
	Motor oil
	Transmission fluid
	Antifreeze

C-30E 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