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3.2 Selecting Exponential Mode (e.g. Molar)
1.
Select Specific Ion mode (
→
→
F3:Mode
→
→
F1:Ion
).
2.
Select Exponential mode as the unit of measurement. This mode is designed
specifically for units such as Molar.
Select Ion Mode
F1
:
ppM/ppK F2
:
Exp
Press
to select Exponential readout (e.g. Molar). The
WP-90
will
automatically select the range that provides the best resolution for the sample
being measured.
3.
Select the type of Specific Ion to be measured.
F1
:
+Mono F2
:
-Mono
F3
:
++Di F4
:
--Di
Press
for Monovalent Cation (e.g. Na
+
).
Press
for Monovalent Anion (e.g. F
–
).
Press
for Divalent Cation (e.g. Cu
2+
).
Press
for Divalent Anion (e.g. S
2–
).
4.
Enter the value of the Primary Standard to be used for calibration.
1.00
10
+
00 Pri Std
F1
:
←
←
F2
:
→
→
↑↑↓↓
:Set
Use the
and
keys to set the first digit. The numbers scroll from 0
to 9.
Press
to move to the next 2 digits, then use the
and
keys to
set each in turn (the decimal point is fixed in the second position).
Press
to move the
10
+
, then use the
and
keys to set it as
10
+
or
10
–
.
Press
to move to the next 2 digits, then use the
and
keys to
set each in turn.