FPM-2150 Series User Manual
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Appendix B Touchscreen
B.1 Introduction
The FPM-2150 Series’ optional touchscreen uses advanced 8-wire resis-
tive technology. It provides more accurate sensing capacity than other
technologies. The touchscreen is specially designed for tough industrial
environments, and has been approved to FCC Class B standards.
B.2 Touchscreen Specifications
Electrical
•
Contact bounce:
< 10 ms
•
Operating voltage:
5 V (typical)
•
Sheet Resistance:
350 +/- 22%
Ω
per Square.
•
Linearity:
<1.5% full scale linearity error in either direction.
•
Insulation Resistance:
>20 M
Ω
@ 25 V DC
Durability
•
Test conditions:
4 H hardness, 0.04" stylus pen, 350 gram load
•
Point activation:
1 Million activations on a single point with a 5/8" diameter silicone
finger with a 350g load at 2 Hz
•
Character Activation Life:
>100,000 characters written within a 20 mm x 20 mm area on the touch
screen.
•
Chemical resistance:
Hard coating is highly resistant to most solvents and chemicals