Hach DR 2800, Руководство пользователя, Страница: 40 / 96

40
Standard Operations
3. Insert the sample cell or blank (depending on the working
procedure) into the cell compartment.
The measurement process and the result are displayed
automatically.
To evaluate other TNTplus cell tests and other parameters, place
the prepared cell in the cell compartment and read the result.
5.5.2 Selecting the Measuring Range
Some tests can be used for different measuring ranges. After the
sample cell has been inserted, a list of the different measuring
ranges is displayed.
Select the measuring range by pressing 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 now reads Permanent: Off.
5.5.3 Selecting 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
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. Press the required chemical form and confirm with
OK
.
Note: The selected chemical form is displayed, but does not become
the default. To change the default form, see
section 5.5.3.1 .
5.5.3.1 Changing the Chemical Form Default Setting
1. Insert the sample cell or blank (depending on the working
procedure) into the cell compartment.