Metrohm 781 pH/Ion Meter - Manual (Page 49)

4 Operation
780/781 pH/Ion Meter, Manual
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Values outside the valid range of limits for the particular
entry will not be accepted by the instrument. This is in-
dicated by the invalid entry blinking. You can now either
enter a new value or retain the original value by exiting
with <QUIT>.
Special entries exist for some numerical entries; these
cannot be seen directly and cannot be edited (e.g.
'OFF' for the measuring parameter Drift). These can be
shown with <CLEAR> and confirmed with <ENTER>.
Text entries are made using the text editor and are described in the
following section.
4.4.3 Entering text
You can use <ABC> to open a text editor for entering texts; this allows
the input of alphanumeric characters:
This text editor must be called up right at the start of a new entry after
the old entry has been completely deleted with <CLEAR>, if neces-
sary. If a text input is started directly with numbers from the number
block of the keyboard then the subsequent opening of the text editor is
no longer possible.
The required characters are selected with the arrow keys. The cursor
movement can be accelerated by keeping the arrow keys pressed
down. The marked character is accepted in the input field with <EN-
TER>. A requirement is that a blinking cursor in the input field indicates
that there free places are available. Otherwise you can delete individual
characters from the back with <CLEAR>.
Text input is terminated by exiting the text editor with <QUIT> and con-
firming the entry with <ENTER>. However, if the whole entry is to be re-
jected then <QUIT> must be activated a second time.
ABC
.