Acoustic Pulse Recognition Specifications

Mechanical

 

Input Method

Finger, finger nail, gloved hand, or stylus activation

Electrical

 

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

Optical

 

Light Transmission

90%+/-5%

Environmental

 

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

Durability

 

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.

 

 

 

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Elo TouchSystems 1522L manual Acoustic Pulse Recognition Specifications, Electrical Position Accuracy, Resolution Accuracy