Red Lion C48C - Manual (Page 19)

Protected Value Menu
The Protected Value Menu allows access to selected presets,
prescaler, and output time values without having them viewable
or changeable from the main display. To enter the protected
menu, the
A key is pressed and held, and a code value is
entered. The Protected Value Menu and the Programming
Menu are not available at the same time. See Front Panel
Accessible Functions With Program Disable, page 14, for
available options.
Access value parameters that are programmed for “P” or “n”
are accessible in the Protected Value Menu. Parameters
selected as “n” (no) are viewable from the main display, but can
only be changed in the protected menu. Parameters selected as
“P” (protected) are not viewable from the main display, but can
be viewed and changed in the protected menu.
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Figure 11, Protected Value Menu