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4. Readout Mode
The
WP-89
has two operating modes – absolute turbidity and relative turbidity.
The default mode is absolute turbidity. To select the readout mode…
4.1 Selecting Absolute Turbidity Readout
1. Switch the
WP-89
ON.
2. Select the Mode menu (
→
→
F3:Mode
).
F1:Abs F2:Rel
F3:Avg F4:Ref
3. Press
to select absolute turbidity readout. The
WP-89
will display the
actual solution turbidity in NTU (Nephelometric Turbidity Units). Below is
an example of an absolute turbidity reading…
360NTU
31/12 12:00:00
4.2 Selecting Relative Turbidity Readout
1. Switch the
WP-89
ON.
2. Select the Mode menu (
→
→
F3:Mode
).
3. Select
F2:Rel
to select relative turbidity readout. The
WP-89
will display
the solution turbidity relative to a preset reference value in NTU
(Nephelometric Turbidity Units). Below is an example of a relative turbidity
reading. Note the "
REL
", which indicates relative turbidity.
+360NTU REL
31/12 12:00:00
4. The value of the reference solution can either be entered manually, or the
current solution can be set as the reference.
Continued over the page…