Metrohm 827 pH lab - Manual (Page 20)

3.2 All key functions at a glance
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826/827 pH meter, Instructions for Use
3.2 All key functions at a glance
The functions of all the keys are described below both for the measured
value display and the menu display:
Key Measured value display Menu display
On/Off
• The < > key switches the instru-
ment on and off.
• After switching-on the pH meter is in
the initial state of the last mode to
have been used.
On/Off
• The < > key switches the instru-
ment off at any time.
Starting calibration
• The <CAL> key starts the pH cali-
bration (in mode pH only).
Acknowledging messages
• Displayed messages are normally
acknowledged with <QUIT> (Ex-
ceptions: see Section 8.2).
• If the cause of the message has not
been remedied, then it will appear
again at the next check.
Canceling working step
• In menus <QUIT> causes a jump
to the next higher level without ac-
cepting the alterations.
Menu selection
• The menu is being changed with the
arrow keys <> and <>.
Selecting predefined entries
• For menu parameters which offer a
fixed choice of settings (recogniza-
ble by the final colon) the selection
list can be viewed with the arrow
keys. The arrow determines the se-
lection direction.
Cursor control for text input
• The cursor is moved to that position
which needs to be altered.