Hach-Lange DR 3800 User Manual - Manual (Page 54)

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Standard Operations
5.5.2 Select the measuring range
Some tests can be used for different measuring ranges. After the
sample cuvette/vial has been inserted, a list of the different
measuring ranges is displayed.
Select the required measuring range by highlighting the appropriate
line.
Press Start Permanent if this measuring range is to apply to all
subsequent measurements.
Changing the standard setting
In the result display, press Options>More>Permanent: On. The
key will change to Permanent: Off.
5.5.3 Select the chemical evaluation form
The chemical form of the test result of a number of parameters can
be selected individually.
In the result display, press the unit (e.g. mg/L) or the chemical
representation of the evaluation form (e.g. PO
4
3– –P). A list of
possible evaluation forms is displayed, from which the required
form can be selected. Press
OK to confirm.
Another way of changing the standard setting is:
1. In the result display, press Options>More>Chemical Form.
A list of available evaluation forms appears.
2. Select the required chemical form and press OK to confirm.
Note: The selected chemical form is displayed, but does not become
the default. To change the default, see
section 5.5.3.1 .
5.5.3.1 Change of the default setting of the chemical form
1. Insert the blank or sample cuvette/cell (depending on the
working procedure) into the cell compartment.
2. In the result display, press Options>More>Chemical Form.
3. A list of available evaluation forms appear. Select the new
default setting.
4. Press Save as Default.
The current result and all further measurements will be displayed in
the new chemical form.