Table C.2 AccuTouch Touchmonitor Specifications
Mechanical
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), |
| 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 |
(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 |
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 |
|
|
