Hanna-instruments HI 9828 Bedienungsanleitung PDF herunterladen (Seite 31)

• Press CONFIRM to accept the value or BUFFER to select another buffer using

the arrow keys.

• After the first calibration point is confirmed, immerse the probe in the second

buffer solution and stir gently.

• When the reading is stable and close to the selected buffer, the display shows

the message “Ready”.

• Press CONFIRM to accept the value or BUFFER to change the buffer.

• After the second calibration point is confirmed, proceed by immersing the probe

in the third buffer solution, stirring gently and waiting for stable reading.

• When the calibration is completed, the display shows the following messages:

“Storing data on probe, please wait...”, “Updating GLP data, please wait ...”

and “Calibration completed”.

• Press OK to return to the calibration menu.

• To return to the main menu, press ESC repeatedly.

NONO

TETE

TE The user can terminate the pH calibration mode at any time, by press-

ing the ESC key.

Custom buffer calibration

HI 9828 allows a single point procedure to cali-

brate with a custom buffer value.

• Select this option by pressing BUFFER and then

CUSTOM keys while the meter is waiting for

stable reading.

• The display shows a window with a text box for inserting the desired custom

value. The valid range for custom buffer is 0.00 to 14.00 pH.

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Hanna-instruments HI 9828 Bedienungsanleitung Seite 31