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Appendix B Optional Touchscreen
B.1 Specifications
Operating Voltage:
Sheet Resistance:
Linearity:
Insulation Resistance:
3.3 to 5 VDC typical
350 ± 22% W/square
+/-1.5% full scale linearity error in either
> 20 MQ @ 25 VDC.
Optical
Total light Transmission : 75% typical (> 74% @ 550 nm test)
Environmental
Operating Temperature Range:
-20°C to +50°C, 2 weeks at 50°C/90%
RH
Storage Temperature High:
+70°C, 240 hours at ambient humidity
Accelerated Aging:
w:
-40°C, continuous at ambient humidity
100 hours continuous exposure at
60°C/95% RH
Thermal Shock:
25 cycles (one cycle is 30 min. dwell
alternating from -40°C
to +85°C with less than 10 min. trans
Mechanical
Activation Method:
Activation Force:
Gloved or ungloved finger
Delrin or plastic stylus (no metal) with
1mm radius full hemispherical tip
< 25 g average with non-metal stylus
< 50 g average with 5/8" diameter sili
cone finger
Mechanical
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