9.3 Oxygen measurement without salinity correction
If S
is shown in the display, the salt correction is deactivated. The displayed oxygen value
OFF
indicates the oxygen content of fresh water.
9.4 Oxygen measurement with salinity correction
If the oxygen content in water containing salt is determined, the salt concentration of the
sample is entered manually (in ppt or mS/cm) in order to correctly display the dissolved oxygen
value of the sample. The unit "ppt" is defined as parts per thousand in water, while "mS/
cm" reflects the conductivity of the water. If the salt content (in ppt or mS/cm) is known and
entered manually, the salt correction is carried out automatically by the instrument.
The salt content is entered as described under section 7.3.
9.5 Saving and viewing measurement values
The measurement values shown in the display can be saved with the SAVE function in the
menu as follows:
1. The menu item SAVE is selected with the arrow keys (RIGHT/LEFT) and confirmed with ENTER.
2. DATA SAVED is shown in the display.
3. Confirm with ENTER. The data shown in the display is saved with time and date.
Using appropriate software, the saved data can be transferred from the Micro SD card to a
PC (see section 9.6). The stored data can also be shown on the display as follows:
1. MEM is selected with the arrow keys (RIGHT/LEFT) and confirmed with ENTER.
2. The menu display shows: DISPLAY SAVED DATA and DELETE ALL DATA and CANCEL. Selec-
tion can be made with the arrow keys (UP/DOWN) and confirmation with ENTER.
9.6 Software for data transmission
The software for the data transmission and data display on a PC is stored on the Micro SD
in the instrument. To install the program, setup.exe is copied from the SD card to the PC
running Windows
and executed. The data is automatically collected and displayed on the
®
user panel as follows:
Attention: The min/max/mean values are only based on the last 10,000 data entries.
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SD_400 Oxi L_1 01/2016