13
When the
off-line
graph
is displayed:
• Use the arrow keys to move along the X (Time) and Y (parameter) axes of the graph.
• Press
to access the zoom menu for X and Y axes. Use
or
/
/
/
to switch between the active zooming axes. Press
or
to zoom the selected axis.
Note
: While in zoom graph menu the
key is not accessible.
• Press
to return to the main menu.
Log History
The measurement, along with
LOG History
, will be visible when this option is selected:
1) The last stored logged data (Not actively logging) or
2) The last data logged from an active logging lot or
3) An empty display - NO LOTS saved, NOT currently logging
The log history list also contains the appropriate mV values, the logged temperature, the temperature probe
status source, as well as the records time stamp.
To access the Log History display option:
• Press
while in
Measure
mode. The “
Choose Display Configuration
” message will be
displayed in the Reminder messages area.
• Press
. The instrument will display the log history regarding the selected
Measure
mode.
Notes:
• When an alarm condition is active, all logged records will have an exclamation mark “
!
”.
• If logged in Auto Hold, logged records will have an “
H
”.
• If another
Measure
mode is selected, the Log History will reset.
• If the temperature unit is changed, all logged temperature values will be automatically displayed
in the new temperature unit.
68
pH BUFFER TEMPERATURE DEPENDENCE
Temperature has an effect on pH. The calibration buffer solutions are affected by temperature changes to a
lower degree than normal solutions.
During calibration the instrument will automatically calibrate to the pH value corresponding to the measured
or set temperature.
During calibration the instrument will display the pH buffer value at 25 °C.
P
M
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T
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