Xylem Lab 870 User Manual
Page 33
Lab 870
Operation
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Note
Here you can cancel the calibration procedure with <MODE>. This
corresponds to a single-point calibration. The value of the zero point
(Asy) is displayed for 10 seconds, then the value of the slope (Slo) is
displayed for 10 seconds. After this the meter switches to the
measuring mode.
Continue with two-point
calibration
8
5
2
2
1
°C
TP
AutoCal
pH
SET
BUFFER
5
Thoroughly rinse the electrode with distilled water.
6
If necessary, set the temperature of the second buffer solution
with <
▲><▼>.
7
Immerse the pH electrode in the second buffer solution.
8
Start the measurement with <OK>.
The SC display indicator flashes.
Depending on the setting, the display shows the nominal pH
value for the recognized buffer or the electrode voltage (mV).
As soon as a stable value is recognized, the next buffer
(BUFFER 3) is requested.
8
5
2
3
1
°C
TP
AutoCal
pH
SET
Buffer
DIN