Aqualytic SD 400 Oxi L Instruction Manual Download

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SD_400 Oxi L_1 01/2016

7.2 Date and time

Date:

Select the CONFIG menu with the arrow keys (RIGHT/LEFT) and confirm with ENTER. The YEAR
display blinks. The display is changed with the arrow keys (UP/DOWN). Then the MONTH and/
or DAY can be selected with the arrow keys (RIGHT/LEFT). Change the respective display with
the arrow keys (UP/DOWN). The current settings are selected by pressing the ENTER button
and the instrument returns to measuring mode. Alternatively, you can proceed to the time
selection with the RIGHT arrow key.

Time:

Select the CONFIG menu with the arrow keys (RIGHT/LEFT) and confirm with ENTER. The
HOURS display is selected with the arrow keys (RIGHT/LEFT). The display is changed with
the arrow keys (UP/DOWN). Then the MINUTES can be selected with the arrow keys (RIGHT/
LEFT). Change the display with the arrow keys (UP/DOWN). The current settings are selected
by pressing the ENTER button and the instrument returns to measuring mode. Alternatively,
you can proceed to the salinity correction with the RIGHT arrow key.

7.3 Salinity correction

As the salt content in the probe increases, the solubility of oxygen in water decreases. There-
fore, it is necessary to enter the values of the salt content before measuring the oxygen with
such samples so that the salinity correction is automatically carried out during the oxygen
measurement.
S

OFF

means that the salinity correction is deactivated if, for instance, fresh water samples or

water samples with a very low ion content are being measured.
The salinity correction can be activated (S

) in CONFIG. The known salt concentration of

the sample to be measured is entered in ppt or in mS/cm. This value is then used for the
salt compensation. The current settings are selected by pressing the ENTER button and the
instrument returns to measuring mode. Alternatively, you can proceed to the concentration
display with the RIGHT arrow key:

1. Select CONFIG with the arrow keys (RIGHT/LEFT) and confirm with ENTER.
2. The S

OFF

is selected with the arrow keys (RIGHT/LEFT). The salt correction is activated with

the arrow keys (UP/DOWN): S

and confirm with ENTER.

3.  The desired unit (ppt or mS/cm) is selected and confirmed with ENTER.
4.  The value can be increased/decreased with the arrow keys (UP/DOWN). The cursor can be moved
   to the next position with the arrow keys (RIGHT/LEFT). The value is confirmed with ENTER.
5.  Now the salt content will be compensated for according to the displayed oxygen values.

7.4 Selecting units

Concentration display (mg/l or ppm)

Select the CONFIG menu with the arrow keys (RIGHT/LEFT) and confirm with ENTER. The
display of the CONCENTRATION is selected with the arrow keys (RIGHT/LEFT). The arrow keys
(UP/DOWN) are used to select mg/l or ppm. The current settings are selected by pressing the
ENTER button and the instrument returns to measuring mode. Alternatively, you can proceed
to the temperature with the RIGHT arrow key.

Temperature

Select the CONFIG menu with the arrow keys (RIGHT/LEFT) and confirm with ENTER. The
display of the TEMPERATURE UNIT is selected with the arrow keys (RIGHT/LEFT). The arrow
keys (UP/DOWN) are used to select °C or °F. The current settings are selected by pressing the
ENTER button and the instrument returns to measuring mode. Alternatively, you can proceed
to the Auto Power-Off function with the RIGHT arrow key.