Switching On The Measuring Instrument; Measuring - wtw Oxi 1970i Bedienungsanleitung

Switching on the measuring instrument

AutoRead
(drift control)
Temperature
measurement
AutoRange
measuring range
selection
Salinity
correction
20
Switching on the measuring instrument
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.

Measuring

Overview of the measuring modes:
Special functions:
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>.
The measuring instrument automatically measures the temperature of the
sample with the integrated temperature sensor of the oxygen sensor (display
shows TP).
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
the 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>
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 <▼>.
Oxi 1970i
. When
ONFIGURING