User`s manual

FPM-3159 User's Manual

A.1 Introduction

The FPM-3159 Series’ optional touchscreen uses an ad-

vanced 8-wire resistive 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 A and Class B standards.

A.2 Touchscreen Specification

Electrical

• Contact bounce: < 10 ms

• Operating voltage: 5 V (typical)

• Contact current: 20 mA (max.)

• Circuit resistance: Open: > 30 mohms

Closed: < 2000 mohms

• Sheet resistance variation: Within one screen: ± 5%

From screen to screen: ± 20%

Durability

Test conditions: 4H hardness, 0.04" stylus pen, 350 gram

load

• Point activation:

Single point, position of stylus controlled to ± 0.0005"

Result: > 1 million activations

• Linear activation:

2" diagonal line, position of stylus controlled to ± 0.0005"

Result: > 250,000 cycles

• Chemical resistance: Hard coating is highly resistant to

most

solvents and chemicals