User manual

POC-175 User Manual 36
Chapter 5 Touchscreen Interface
5.1 Introduction
5.1.1 General Information
The POC-175's optional touchscreen incorporates advanced second-gen-
eration 5-wire resistive technology. They allow 75% light transmission.
The resistive and capacitive models have an antiglare surface. All models
provide greatly enhanced visual resolution. They also have new improved
scratch-resistant features.
The touchscreen is manufactured from UL-recognized components.
When properly installed, the touchscreen's ball impact resistance meets
the UL 1950 standard. Its fire resistance meets the UL-746C, 19 mm
(0.75") flame test standard. Systems incorporating the touchscreen, con-
trollers, and cables have been approved to FCC Class A and Class B stan-
dards.
5.1.2 General specifications
Please refer to Chapter 1, Section 1.2 of this manual.
5.1.3 Environmental specifications
• Temperature:
– operating -0 ~ 40° C
– storage -20 ~ 60° C
• Relative humidity:
– operating 90 RH at 35° C
– storage 90 RH at 35° C for 240 hours, non-condensing
• 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 (71° F):
– Acetone
– Methylene chloride
– Methyl ethyl ketone
– Isopropyl alcohol
– Hexane
– Ammonia-based glass cleaners
– Turpentine