Dissolved Oxygen; Measuring; Measuring D.o - wtw Multi 9310 Operating Manual

Multi 9310
Selecting the
displayed
measured parameter
Salinity correction
ba75937e03 12/2011
7

Dissolved oxygen

7.1

Measuring

7.1.1 Measuring D.O.

NOTE
When connecting a grounded PC/printer, measurements cannot be
performed in grounded media as the values would be incorrect. The USB
interface is not galvanically isolated.
1. Connect the D.O. sensor to the meter.
The D.O. measuring screen is displayed.
2. If necessary, select the measured parameter with <M>.
3. Check or calibrate the meter with the sensor.
Only in special cases does the FDO
ibration. A regular FDO
4. Immerse the D.O. sensor in the test sample.
[t90= 30 s]
01.07.2011
Info
08:00
You can switch between the following displays with <M>:
D.O. concentration [mg/l]
D.O. saturation [%]
D.O. partial pressure [mbar].
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 screen.
®
925 D.O. sensor require cal-
®
check is sufficient.
USB output
Dissolved oxygen
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