wtw inoLab 740, Руководство по эксплуатации

Страница: 146 / 274

Dissolved oxygen (D. O.)
146
8.3.2 Drift control (AutoRead)
The AutoRead function checks the stability of the
measurement signal. The stability has a considerable
impact on the reproducibility of the measured values.
When using a probe with integrated stirrer (StirrOx G), the
measurement with AutoRead can be started using the key
on the probe. As soon as a stable measured value is
reached, the stirrer switches itself off.
1 Use
m
to call up the Display mode.
2 Call up the oxygen measured variable with
m
.
3 Immerse the D. O. probe in the test sample.
4 Activate the AutoRead function with
a
.
The
h
display indicator appears on the display.
The measured value is frozen (hold function).
5 Start the measurement with AutoRead by pressing
g
or the key on the StirrOx G probe. The
h
display
indicator flashes.
If the StirrOx G probe is used:
3
flashes.
When a stable signal is reached, an acoustic signal is
heard and
h
stops flashing.
If the StirrOx G probe is used: The
3
display
indicator disappears.
6 If necessary, start the next measurement with
AutoRead by pressing
g
or the key on the StirrOx G
probe.
7 To terminate the AutoRead function: Press the
a
key.