Xylem SI Analytics Lab 855 Operating Manual page 22

pH value
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3. If necessary, press <CAL> to select the buffer set ([ConCal]).
ASY is displayed.
4. Thoroughly rinse the pH electrode with deionized water.
5. Immerse the pH electrode in the first buffer solution (pH 7.0 ± 0.5 for
two-point calibration).
6. When measuring without temperature sensor: Enter the temperature of
the buffer with <><>.
7. Start the measurement with <ENTER> .
The pH value of the buffer solution is displayed.
The measured value is checked for stability (stability control).
The [AR] status display flashes.
8. Wait for the measurement with stability control to be completed.
9. Set the nominal pH value of the buffer solution with <><>.
10. Accept the calibration value with <ENTER>.
SLO is displayed.
11. If necessary, finish the calibration procedure as a single-point calibration
with <M>.
The calibration record is displayed.
or
Continue calibration using the next buffer with <ENTER>.
Continuing with two-point calibration
12. Thoroughly rinse the pH electrode with deionized water.
13. Immerse the pH electrode in the second buffer solution.
A S Y
2 4 8
°C
ConCal
s L O
2 8
4
°C
ConCal
Lab 855
TP
TP
ba77143e02 12/2017