Hach DR 3900 Manuel D'utilisation De Base page 120

The reading is started automatically and the results are displayed.
To evaluate other cell tests and other parameters, insert the prepared
cell into the cell compartment and read off the result.
Note: The control bar displayed on the right of the screen shows the
relationship of the reading result to the measuring range. The black bar
shows the measured result independently of any dilution factor that was
entered.
Select the chemical evaluation form
The chemical form of the test result of a number of parameters can be
selected individually.
1. In the result display, press the unit (e. g. mg/L) or the chemical
representation of the evaluation form (e. g. PO
A list of available evaluation forms appears.
2. Select the required form from the list. Press OK to confirm.
Another way of changing the standard setting is:
1.
2.
Change of the default setting of the chemical form
1.
2.
3.
3–
–P).
4
4.
The current result and all further readings will be displayed in the new
chemical form.
In the result display, press Options>More>Chemical Form.
A list of available evaluation forms appear.
Select the required chemical form and press OK to confirm.
Hinweis: The selected chemical form is displayed, but does not
become the default. To change the default, refer to
of the default setting of the chemical
Insert the zero cell or sample cell (corresponding to the process
specification) into the cell compartment.
In the result display, press Options>More>Chemical Form.
A list of available evaluation forms appear. Select the new default
setting.
Press Save as Default.
section Change
form.
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