Chapter 8 Touchscreen

8.1 Introduction

The IPPC-9151 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.

8.2 Touchscreen Specifications

Electrical

Contact bounce: < 10 ms

Operating voltage: 5 V (typical)

Sheet Resistance: 350 +/- 22% per Square.

Linearity: <1.5% full scale linearity error in either direction.

Insulation Resistance: >20 M @ 25VDC

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

Optical

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Advantech IPPC-9151 Series user manual Touchscreen Specifications