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PPC-120/140 User's Manual
10.1 Introduction
10.1.1 General information
The PPC-120/140's optional touchscreen incorporates advanced
second-generation 5-wire resistive technology. It allows 75% light
transmission and has an antiglare surface. This produces greatly enhanced
visual resolution. It also has a newly improved scratch-resistant hard
coating.
The touchscreen is manufactured from UL-recognized components (file
no. E133802). 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, controllers, and cables have been approved to FCC class A
and B standards.
10.1.2 Specifications
Light Transmission: Typically 75% at 550 nanometers wavelength,
optimized for flat-panel displays. All measurements as per ASTM D
10036-61
Visual Resolution: Antiglare: 6:1 minimum. Measured according to
USAF 1951 Resolution Chart, under 30x magnification, with test unit
located approximately 3.8 mm (1.5") from surface of resolution chart
Haze: Antiglare: less than 15%, as per ASTM D 103-61
Gloss: Antiglare: 96 ± gloss units, as per ASTM D 2457-70
10.1.3 Environmental specifications
Temperature: -10° ~ 50° C (operating)
-40° ~ 71° C (storage)
Relative humidity:
90 RH at 35° C (operating)
90 RH at 35° C for 240 hours, noncondensing (storage)