26
PUMP CALIBRA
TION
• Rinse the pH electrode with deionized water and immerse into the calibration solution until the
reference junction is completely submerged. Be sure that the tip of the electrode is not hitting the
stir bar. If necessary, additional distilled or deionized water can be added.
• Insert the dosing tip into the titrant tube sleeve. It is critical that the tip be immersed
approximately 0.25 cm (0.1") into the solution being titrated.
• Press
Continue
to begin the calibration or
Stop
to abort it.
• At the end of the calibration,
“Calibration Completed“
appears on display. To repeat the
calibration press
Restart
or the
ESC
key to return to the main screen.
8.3. ERRORS AND WARNING MESSAGES
• If an erroneous condition is encountered during the calibration the message
"Wrong standard"
is displayed. Prepare a new standard, rinse the pH electrode, temperature probe, and dosing
tip. The calibration can be restarted by pressing
Restart
.
• If the maximum titrant volume is dispensed, the message
"Max vol. exceeded"
is displayed.
Prepare a new standard, rinse the pH electrode, temperature probe, and dosing tip. The
calibration can be restarted by pressing
Restart.
