Tyco Electronics 1938L manual Acoustic Pulse Recognition Specification

Acoustic Pulse Recognition Specification

Input method	Finger, finger nail, gloved hand, or stylus activation
Position accuracy	1% max. error
Resolution accuracy	Touchpoint density is based on controller resolution of
	4096 x 4096
Touch activation force	Typically 2 to 3 ounces (55 to 85 grams)
Controller	Board: USB 1.1
Light transmission	90%+/-5%
Chemical resistance	The touch activation area of the touchscreen is resistant to
	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
Surface durability	Surface durability is that of glass, Mohs’ hardness rating of 7
Expected life	No known wear-out mechanism, as there are no layers,
	coatings, or moving parts. APR technology has been
	operationally tested to more than 50 million touches in one
	location without failure, using a stylus similar finger.

C-33