wtw inoLab 740, Operating Manual

Page: 137 / 274

Dissolved oxygen (D. O.)
137
8.1.3 Salinity correction
When measuring the concentration of test samples with a
salt content of more than 1 g/l, a salinity correction is
required. To do this, you have to enter the salinity equivalent
of the test sample (range 0.0 - 70.0) and to switch on the
salinity correction.
Entering the
salinity
7 Press [ESC] to close the air pressure display and
terminate the Menu mode.
1 Switch to the Menu mode.
2 Use
46
to select the main Cal menu.
3 Select the Set Sal ... menu item with
82
.
4 Confirm the selected menu item with
g
.
The input field for the salinity appears on the display.
5 Option:
Select a digit with
46
.
6 Increase or reduce the salinity value with
82
.
7 Use [ESC] to terminate the input.