0024-9551 Revision 1
11
PCA
®
400 User Manual
Fig. 2-3: Navigation Keypad
Back Key - Displays the previously viewed screen. In
addition, if changes have been made to one of the
analyzer’s operating parameters (e.g., date, time, O
2
reference, etc.), pressing this button aborts any changes,
restores the old values and displays the previously
viewed screen.
Home Key - Displays the Main Menu. In addition, if
changes have been made to one of the analyzer’s
operating parameters (e.g., date, time, O
2
reference, etc.),
pressing this button aborts any changes, restores the
old values and displays the Main Menu.
Power Key - Turns the analyzer ON and OFF.
Navigation Keys - Move the cursor on the display. When
viewing a directory, use the buttons to open and
close sub-directories.
Enter Key - Selects a highlighted item. In addition,
if changes have been made to one of the analyzer’s
operating parameter (e.g., date, time, O
2
reference, etc.),
pressing this button conrms those changes and saves
them in memory.
CAUTION: DO NOT subject display to excessive shock.
CAUTION: Periodic cleaning with a lightly moistened soft cloth is recommended.
DO NOT wipe display with a dry cloth, as it may scratch the surface.
CAUTION: DO NOT use organic solvents or detergents to clean the display, as they
may cause damage to the screen.
DANGER: Display contains liquid crystal which is poisonous. If liquid crystal comes
in contact with skin, wash immediately with soap and water. If ingested, immediately
contact the local poison control center.
2.1.2 Keypad
2.1.3 Display
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