Hanna-instruments HI 9829 Manuel d'utilisateur télécharger pdf (Page 39)

• After the calibration point is confirmed, to avoid cross-contamination immerse

the sensors in the next calibration buffer rinse solution and stir gently.

• Press <Cal Point> to select the next buffer (if necessary), and repeat the cali-

bration procedure outlined above with the second and third buffers.

NoteNote

Note The calibration procedure can be terminated after a single or 2 point

calibration by pressing <ESC>. The message “Storing” followed by

“Calibration completed” will be displayed.

• Press <OK> to return to the Calibration menu.

• Press <Measure> to return to the measurement screen.

Note: If a single point calibration is conducted after restoring the factory calibra-

tion, it will offset the entire factory probe values by the same offset required to

calibrate the sensor to the single buffer value.

Custom buffer calibration

The HI 9829 permits a single custom buffer to be used for pH calibration. This

can be used along with standard buffers as part of a 2 or 3 point calibration or

as a single point.

• To select this option first press <Cal. point> and then <Custom> while the

meter is waiting for stable reading.

• A text box window will appear. Use the keypad to enter the value of the buffer

at the current temperature. The valid range for custom a buffer is from 0.00

to 14.00 pH.

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Hanna-instruments HI 9829 Manuel d'utilisateur Page 39