wtw pH 197i Bedienungsanleitung Seite 23

pH 197i
pH S
- 5 8 8
O
Sal
pH S
1
O
Sal
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l Immerse the pH electrode in the second buffer solution to continue the
two-point calibration.
l When measuring without a temperature sensor:
Enter the temperature of the third buffer solution with <L> <M>.
l Press <RUN/ENTER>. The AutoRead measurement begins. The
electrode voltage (mV) or the buffer nominal value appears on the
display.
l When the measured value is stable, the instrument shows the value of
mV/ pH
the slope and the evaluation of the three-point calibration.
% mg/l
S/
m
cm
l Press <RUN/ENTER>. The instrument displays the value of the
mV pH
2
asymmetry.
mg/l
S/
cm
l Switch to the measuring mode with <M>.
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Calibration
23