Dissolved Oxygen (D. O.); Settings For D. O. Measurements; Determining The Measuring Range - wtw inoLab Level 3 Operating Manual

8

Dissolved oxygen (D. O.)

Measuring modules for the inoLab Level 3:
Oxi, BSB/BOD, pH/Oxi and Multi.
8.1

Settings for D. O. measurements

In order to achieve comparable and reproducible measuring
results, we recommend checking the current settings before
measuring.
8.1.1

Determining the measuring range

For D. O. measurements, two measuring ranges with
different resolutions are available.
l Range from 0 to 19.99 mg/l dissolved oxygen.
Standard range for all aqueous test samples.
l Range from 0 to 90.0 mg/l dissolved oxygen.
This range may be necessary for non-aqueous test
samples (measuring ranges: see chapter 15 T
).
DATA
Note
When connecting a recorder, deactivate the AutoRange
function if measured values are also expected outside the
range of 0 ... 19.99 mg/l. Otherwise, the recorder scaling at
the range limits will change.
1 Switch to the Menu mode.
46
2 Use
3 Select the Oxi setup menu item with
4 Confirm the Oxi setup menu item with
5 Select the AutoRng menu item with
to select the main Meas menu.
Dissolved oxygen (D. O.)
ECHNICAL
82
.
g
.
82
.
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