Multi 3320
Dissolved oxygen
ba77053e04
07/2018
45
8
Dissolved oxygen
8.1
Measuring
8.1.1
Measuring D.O.
NOTE
When connecting an grounded PC/printer, measurements cannot be
performed in grounded media as the values would be incorrect
.
The USB interface is not galvanically isolated.
Salinity correction
When measuring the concentration of solutions with a salt content of more than
1 g/l, a salinity correction is required. For this, you have to measure and input
the salinity of the measured medium first. When the salinity correction is
switched on, the
[SAL]
indicator is displayed in the measuring window.
1.
Connect the D.O. sensor to the meter.
The D.O. measuring screen is displayed.
The measuring instrument automatically recognizes the type of the
connected D.O. sensor.
2.
If necessary, select the measured parameter with
<M>
.
3.
Immerse the D.O. sensor in the test sample.
4.
If necessary, select the measured parameter with
<M>
.
D.O. concentration [mg/l]
D.O. saturation [%]
D.O. partial pressure [mbar].
O
2
7.92
mg/l
25.1
°C
[CellOx 325]
USB output
15.02.2014
08:00
You can switch the salinity correction on or off and enter the salinity
in the menu for calibration and measurement settings (see section
10.1.5 S
