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It is also possible to delete the last character; position the cursor on the Backspace character and press
.
• Press
to return to Sample ID options. If the Saving
Confirmation is enabled, press
to accept the modified
option,
to escape without saving or
to return to
the editing mode. Otherwise, the modified options are saved
automatically.
• If the selected increment mode is Automatic, the desired sample
ID value can be set using
or
.
• Press
to save the current value or press
to
cancel operation.
Stability Criteria
This option allows the user to select the signal stability criterion for the measured parameter (pH, mV, ISE):
Fast
- this setting will give faster results with less accuracy.
Medium
- this setting will give medium speed results with medium accuracy.
Accurate
- this setting will give slower results with high accuracy.
To set the Stability Criteria:
• Press
while in
pH Measure
mode.
• Press
.
• Use
or
to select the Stability Criteria option.
• Press
and use
or
to highlight the
desired option.
• Press
to confirm your selection or press
to
cancel operation.
Reading Mode
This option allows the user to select between Direct and Direct/AutoHold pH reading mode. If choosing the
AutoHold option, the current reading can be frozen on the LCD when
is pressed and the stability criterion
is reached.
53
• If the isopotential point of the electrode is unknown,
the ISE calibration and measurements can be
performed without temperature compensation (see
ISE Setup, Temperature option for details).
• When in MTC mode, after selecting a standard press
, a pop-up menu will be displayed on the
LCD in which the concentration and the temperature
value can be adjusted by pressing
and then
or
keys. Press
to save the
modified value and then
/
to select
next/previous value to be adjusted. MTC value will
have no effect on measurement but will be included
on log data.
CALIBRATION MESSAGES
•
Wrong standard solution. Check the standard solution
: this message appears when the difference
between the reading and the value of the selected standard solution concentration is significant. If this
message is displayed, check if you have selected the appropriate calibration standard.
•
Standard to close. Check the standard or clear calibration
: this message appears when the
difference between current ISE standard and the already calibrated standard is too low
.
•
Slope to low/high. Check the standard solution.
Recalibrate using fresh standards.
•
Difference between standards temperature is too high.
Press
to update calibration or clear
old calibration.
