27
Sample ID
This option allows the user to assign an identification number/
name. Two Sample ID options are available: ID Increment and Edit
Sample ID.
ID Increment
Two choices are available for the sample ID:
None
- the sample ID will be fixed and it can be set alphanumeric
(see Edit Sample ID).
Automatic
- the sample ID will automatically increment by one
for each new log lot.
To set the ID Increment mode:
• Press
while in
pH Measure
mode.
• Press
.
• Use
or
to select the Sample ID option.
• Press
and use
or
to highlight the ID Increment option.
• Press
/
as desired.
• Press
to return to previous menu.
Edit Sample ID
This option allows the user to edit the sample ID.
Note
: The ID Increment mode must be set to None, to use this
feature.
To edit the Sample ID:
• Press
while in
pH Measure
mode.
• Press
.
• Use
or
to select the Sample ID option.
• Press
and use
or
to highlight the Edit
Sample ID option.
• Press
to confirm your selection.
• If the selected increment is None, the Text Editor menu will be displayed on the LCD, allowing you to enter the
desired sample number/name by accepting the highlighted character which is added in the text bar, using
. The
and
keys help the user to select the desired character.
54
Make sure the instrument and ISE sensor have been calibrated before making ISE measurements.
When using one of the incremental methods for measurement, at least a two point ISE calibration must be
performed to establish the electrode slope.
For accurate measurements, add the appropriate
ISA
(Ionic Strength Adjuster) to both samples and standards.
Consult ISE manual for sensor preparation details.
DIRECT MEASUREMENT
To measure the concentration of a sample using the Direct reading mode:
• Press
and then
to select
ISE Measure
mode
for the selected channel.
• Select the Direct reading mode (see ISE Setup for details).
• Add ISA to the sample solution.
• Submerge the Ion Selective Electrode tip and the temperature
probe approximately 2 cm (1”) into the sample. Allow time
for the electrode to stabilize.
• The measured concentration value will be displayed on the
LCD in the selected units.
Note
: If the reading is out of range, “
----
” will be displayed on
the LCD.
DIRECT/AUTOHOLD MEASUREMENT
To measure the concentration of a sample using the Direct/AutoHold reading mode:
• Press
and then
to select
ISE Measure
mode
for the selected channel.
• Select the Direct/AutoHold reading mode (see ISE Setup for
details).
• Add ISA to the sample solution.
• Dip the Ion Selective Electrode tip and the temperature probe
approximately 2 cm (1”) into the sample to be tested.
• The measured concentration value will be displayed on the
LCD. Press
, the “
AutoHold
” indicator will blink on
the LCD until the stability criterion is reached. The concentration
value will be frozen on the LCD, along with “
AutoHold
”
indicator.
ISE MEASUREMENT (HI 5222 only)
