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15
SETUP
8.1. PARAMETER SCREENS
Log Separator
Option: Comma (,) or Semicolon (;)
Log separator or CSV file separator is a special character used to separate columns in the CSV log file.
The field separator depends upon regional preferences.
Press the function key to modify the CSV file separator.
Salinity
Option: 0 to 70 PSU
Dissolved oxygen solubility decreases if water contains salts. This parameter is used to compensate
concentration measurements (mg/L) made in brackish or sea water samples. The salinity is expressed
in PSU scale and is manually entered by the user. The DO concentration will be automatically
compensated to improve the accuracy during calibration and measurement. Enter the salinity value to
be close to the known salt level of the sample. Seawater typically has a salinity of 35 and the oxygen
solubility is 18% less as compared to fresh water at 25 °C. By entering the approximate salinity value,
the calibration and subsequent concentration measurement will be compensated to display the correct
oxygen concentration. An 18% error would result if the salinity value is not entered.
Highlight
Salinity
.
Press
Modify
.
Use / keys to change the salinity value. Press
Accept
to confirm or
ESC
to exit without saving.
Manual Pressure
Option: Enable or Disable
The
HI98198
has a built in barometer for automatic compensation of ambient pressure for oxygen
measurement. The user may enable Manual Pressure to disregard the barometer measurement and