Metrohm 827 pH lab Manual de usuario Pagina 21

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3 Operation
826/827 pH meter, Instructions for Use 13
Key Measured value display Menu display
Altering display contrast
The contrast of the LCD display can
be altered with the arrow keys <
>
and <
> during the measured val-
ue display.
This setting is retained after the in-
strument has been switched off and
on. The default value is only reset af-
ter the memory has been initialized.
Controlling the menu bar
In each menu display the <
> und
<
>
keys can be used to move the
selection bar up and down by one
line.
Cursor control for text input
The character to be entered is se-
lected with the arrow keys and en-
tered with <OK>.
Leafing through the measured value
memory
Leafing through between the entries
in the measured value memory dis-
play: starting from the last meas
ured
value having been stored you can
access older entries with <
> and
vice versa.
Calibration
The calibration sequence is contin-
ued with <OK>.
The calibration data are accepted
with <OK> in case they are out of
the defined limits.
Confirming entry
The <OK> key is used to complete
each entry with the selection bar
moving on to the next parameter. If
an entry is exited without this confir-
mation then the en
tered value will be
rejected.
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