Changing The Filter On Color Units; Screen Saver; Degauss - Allen-Bradley PanelView 1200 Series User Manual

Chapter 5
Maintaining Your PanelView 1200
Terminal
5-2
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Changing the Filter on Color Units

Clean the filter on your color terminal whenever it appears to be in danger
of clogging up. Remove the filter cover from the back of the terminal by
popping it free of its plastic side clips. Remove the filter and clean it by:
removing the dust with a vacuum cleaner
washing with warm water and soap. Be sure the filter is dry before you
replace it.
The filter itself is made of flame-retardant urethane foam 0.13" (3.3mm)
thick, and measures 3.64" by 3.54" (92.5mm by 89.9mm). If your filter
should become unusable, replace it with part number 09362-M/45 from
Hitachi or Qualtek Electronics.

Screen Saver

The screen saver preserves the life of the PanelView 1200 terminal screen
by blanking the screen when no buttons have been pressed for a
user-definable period of time.
Choose Screen Saver from the Configuration Mode menu to display the
Screen Saver Timeout screen. Here you set the amount of time that should
pass without screen activity before the screen blanks. Elapsed time can
range from 1 to 999 minutes. A setting of 0 (zero) disables the screen
saver.
Mode changes, PLC generated Alarm Messages, Information Messages,
screen requests, or terminal fault messages also turn off the screen saver.

Degauss

If an external magnetic field (such as an electric motor starting up) occurs
near a color terminal, the CRT may retain some residual magnetic effect,
which in turn may affect the clarity of the display. Degaussing removes
any such residual magnetism by totally demagnetizing the CRT. Automatic
degauss occurs each time AC power is re-applied to the terminal and at
midnight (according to the PanelView 1200 terminal system clock) daily.
You can also degauss the color terminal manually by choosing Unit Tests
from the Configuration Menu. Then choose Degauss from the Unit Tests
screen. See Chapter 2, PanelView 1200 Terminal Functions, for more
information.