Pro-face PL-5900 Series, Руководство пользователя

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Preface
3 PL-5900 Series User Manual
• After the PL’s backlight burns out, unlike the PL’s
“Standby Mode”, the touch panel is still active. If the op-
erator fails to notice that the backlight is burned out and
touches the panel, a potentially dangerous machine op-
eration mistake can occur.
If your PL's backlight suddenly turns OFF, use the follow-
ing steps to determine if the backlight is actually burned out.
1) Even though the backlight OFF (screen saver) feature
is not used, the backlight has turned OFF.
• If metal particles, water or other types of liquids contact
any of the PL’s internal parts, immediately turn the unit’s
power OFF, unplug the power cord, and contact either your
PL distributor or the Digital Electronics Corporation.
• Read and understand Chapter 4 “Installation and Wiring”
thoroughly in order to select an appropriate installation
location for the PL.
• Before either plugging in or unplugging a board or inter-
face connector, be sure to turn the PL’s power OFF.
• To prevent a possible explosion, do not install the PL in
areas containing flammable gases.
• The PL is not appropriate for use with aircraft control de-
vices, aerospace equipment, central trunk data transmis-
sion (communication) devices, nuclear power control de-
vices, or medical life support equipment, due to these de-
vices’ inherent requirements of extremely high levels of
safety and reliability.
• When using the PL with transportation vehicles (trains, cars
and ships), disaster and crime prevention devices, vari-
ous types of safety equipment, non-life support related
medical devices, etc. redundant and/or failsafe system
designs should be used to ensure the proper degree of
reliability and safety.
WARNINGS