Switching on the measuring instrument Oxi 1970i
20
ba75676e03 05/2012
Switching on the measuring instrument
Measuring
Overview of the measuring modes:
Special functions:
AutoRead
(drift control)
The AutoRead function checks the stability of the measurement signal.
Activate AutoRead with <AR>. To start the AutoRead measurement, press
<RUN/ENTER>. During the AutoRead measurement, AR flashes on the
display until a stable measured value is reached. This can be terminated at
any time taking over the current measured value with <RUN/ENTER>.
Temperature
measurement
The measuring instrument automatically measures the temperature of the
sample with the integrated temperature sensor of the oxygen sensor (display
shows TP).
AutoRange
measuring range
selection
There are several measuring ranges available for oxygen measurements.
If a measuring range is exceeded, AutoRange causes the measuring
instrument to change automatically to the next measuring range. To switch
the automatic measurement range selection on/off, see C
ONFIGURING. When
the AutoRange function is switched on, ARng appears on the display.
Salinity
correction
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>
repeatedly until Sal appears on the display. Then enter the salinity with <▲>
<▼>. Then change to the oxygen concentration measuring mode with <M>.
Switch on the salinity correction with <▲> (display SAL). To switch it off,
press <▼>.
Press the <ON/OFF> key.
The Display test appears briefly on the display.
After this, the measuring instrument automatically switches to the
measuring mode. The display shows the relevant measured value.