horiba LAQUA F-71G, Инструкция по эксплуатации

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Chapter 3 Basic Operation
3.3 Calibration
47
4.
Press the CAL key to enter the CUST calibration
screen.
5.
Press the or key to select digit and press the
▲
or
▼
key to change value, to set the value of the
desired standard solution.
6.
Check the stable indication value, and press the
CAL key.
The HOLD indicator blinks until the reading
stabilizes. When the reading stabilizes, the HOLD
indicator lights up and the reading is held.
The mark, which means that the first point
calibration is completed, is displayed on the screen.
・
To stop calibration:
Press the CAL key while the HOLD indicator
blinks.
・
To redo calibration:
Press the CAL key again after the HOLD indicator
lights up.
7.
Wash the pH electrode with pure water (deionized),
and wipe it off by filter paper or tissue paper.
8.
Immerse the pH electrode in the standard solution
of pH4 to calibrate the second point.
9.
Press the
▲
or
▼
key to set the value of the
random standard solution.
▲ ▼