Hanna Instruments HI 84502 - Manual (Page 27)

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Note: • If temperature probe is not connected, Manual Temperature Compensation is used
and MTC appears on the right side of the screen. If Automatic Temperature
Compensation is in use the ATC appears on the right side of the screen.
• If an erroneous situation is encountered
during the calibration, an error message
is displayed and the calibration can be
restarted by pressing
Restart. Prepare a
new standard, rinse electrode, temperature
probe and dosing tip and try again.
• If the calibration doesn’t complete and
the max titrant volume of titrant is reached,
an error message will be displayed. The
calibration can be restarted by pressing
Restart. Prepare a new standard, rinse
electrode, temperature probe and dosing
tip and try again.
• This error message appears when the pH
reading exceeds the acceptable input limits
(-2.00 < pH < 16.00).
• This screen appears when the stirrer is
not working properly. Check the stir bar
and beaker content. Press
Restart to try
again.
• This error message appears when the pump
is not working properly. Check the tubing,
valve and syringe. Press
Restart to try
again.
• 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 and Stop to abort it.
• At the end of the calibration, ” Calibration Completed“
appears on display. To repeat the calibration press Restart or
ESC to return to the main screen.