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5. Turbidity Calibration
A “
∗
” in place of the decimal point indicates that the Turbidity readout of
the currently selected mode is not calibrated, or a past calibration has
failed. The “
∗
” will be removed once a full two-point Turbidity calibration
has been successfully performed.
5.1 Entering the Turbidity Standard Value
In order to calibrate the
WP-88
it is first necessary to enter the value of
the Turbidity standard which is to be used for calibration. To enter the
Turbidity standard value…
1. Plug the Turbidity sensor into the
Turbidity
socket.
2. Switch the meter on.
3. Select the Set Standards menu (
→
→
→
→
F3:Stds
).
4. The Turbidity standard for the Low Turbidity mode can entered, for
example…
> 90.0<NTU Low
↑
↑
↑
↑↓
↓
↓
↓
:Set F1:Save
Press the
and
keys until the display shows the value of the
Turbidity standard. The allowable range is 30.0 to 180.0 NTU.
Press
to save the Turbidity standard value.
Press
to retain the current setting and move to the high range
Turbidity standard.
5. The Turbidity standard for the High Turbidity mode can now be
entered, for example…
> 900.<NTU High
↑
↑
↑
↑↓
↓
↓
↓
:Set F1:Save
Press the
and
keys until the display shows the value of the
Turbidity standard. The allowable range is 300 to 2000 NTU.
6. Press
to save the Turbidity standard value.
Alternatively, press
to quit and retain the current setting.