Measuring - wtw Oxi 3300i Instrucciones De Operación

Measuring

AutoRead
(drift control)
Temperature
measurement
AutoRange
measuring range
selection
Salinity
correction
6
Measuring
Overview of the measuring modes:
Oxygen
concentration
<M>
Oxygen
partial pres-
sure mbar
Special functions:
The AutoRead function checks the stability of the measurement signal (ex-
cept for the measurement of the ORP voltage). Activate AutoRead with
<AR>. Press <RUN/ENTER> to start the AutoRead measurement. During
the AutoRead measurement, AR flashes on the display until a stable mea-
sured value is reached. This can be terminated at any time taking over the
current measured value with
<RUN/ENTER>.
The measuring instrument automatically measures the temperature of the
sample with the integrated temperature sensor of the conductivity measuring
cell (display TP).
There are several measuring ranges available for oxygen measurements.
If a measuring range is exceeded, AutoRange causes the measuring instru-
ment to change automatically to the next measuring range. To switch the au-
tomatic measurement range selection on/off, see C
AutoRange function is switched on, ARng appears on the display.
A salinity correction is required in the oxygen concentration measurement of
samples with a salt content of more than 1 g/l. To do so, press the <CAL>
key repeatedly until Sal appears on the display. Then, enter the salinity with
<L> <M>. Then change to the oxygen concentration measuring mode with
<M>.
Switch on the salinity correction with <L> (display SAL). To switch it off,
press <M>.
mg/l
<M>
Oxygen
saturation
<M>
%
Oxi 3300i/3400i
. When the
ONFIGURING