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Acoustic Pulse Recognition Technology
Table B-4 APR Specifications
Input Method Finger, finger nail, solid stylus or gloved hand (cloth, leather or
rubber) activation
Mechanical Positional Accuracy 1% maximum error
Resolution Accuracy Touchpoint density is based on controllers resolution of 4096
x 4096
Touch Activation Force Typically 2 to 3 ounces (55 to 85 grams)
Controller Board: USB 1.1
Optical Light Transmission 90% +/- 5%
Environmental Chemical Resistance The touch activation area of the touchscreen is resistant to
chemicals that do no affect glass such as:
●
Acetone
●
Toluene
●
Methy ethyl ketone
●
Isopropyl alcohol
●
Methyl alcohol
●
Ethyl Acetate
●
Ammonia-based glass cleaners
●
Gasoline
●
Kerosene
●
Vinegar
Surface Durability Expected Life Surface durability is that of glass, Hohs' hardness rating of 7.
No know 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 to a finger.
24 Appendix B Technical Specifications ENWW