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if it is close to the selected buffer, the instrument will advise the user with an acoustic signal
(if enabled) when the reading becomes stable, and the display will change to “READY” and
blinking “CFM”.
• Press the CFM key to confirm the calibration: the instrument stores the first calibration
point; the primary LCD will show the calibrated reading, while the secondary LCD will
show the second buffer to be used for calibration (pH 4.01).
If you’re going to calibrate with a different buffer, select the desired value by pressing the
arrow keys.
• Submerge the electrode approximately 4 cm (1½") into the second buffer solution,
place the temperature probe as close as possible to the electrode and stir gently.
• The LCD will flash “NOT READY” for 12 seconds, then:
if the reading is not close to the selected buffer, “WRONG
” and “WRONG ” will
blink alternatively;
if it is close to the selected buffer, the instrument will advise the user with an acoustic signal
(if enabled) when the reading becomes stable, and the display will change to “READY”
and blinking “CFM”.
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