wtw PH 1970i Instrucctiones De Operación página 23

pH 1970i
pH S
mV/
5 8 8
-
O % mg/l
S/
m
Sal
pH S mV
1 2
O mg/l
S/
Sal
ba75675e01 01/2007
Immerse the pH electrode in the second buffer solution to continue the
two-point calibration.
When measuring without a temperature sensor:
Enter the temperature of the third buffer solution with < > < >.
Press <RUN/ENTER>. The AutoRead measurement begins. The
electrode voltage (mV) or the buffer nominal value appears on the
display.
When the measured value is stable, the instrument shows the value of
pH
the slope and the evaluation of the three-point calibration.
cm
Press <RUN/ENTER>. The instrument displays the value of the
pH
asymmetry.
cm
Switch to the measuring mode with <M>.
Calibration
23