Hanna Instruments HI 96710 - Manual (Page 24)

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It is possible to delete the calibration and
restore factory calibration.
• Press RANGE/GLP/ to enter GLP mode.
• Press READ/ /TIMER to enter in the
factory calibration restore screen. The
instrument asks for confirmation of user
calibration delete.
• Press ZERO/CFM to restore the factory
calibration or press RANGE/GLP/
again to abort factory calibration restore.
• The instrument briefly notifies “donE”
upon restoration of factory calibration prior
to returning to
measurement mode .
In the GLP mode, the last user calibration date can be verified and the factory calibration can be
restored.
To display the calibration date:
• Press RANGE/GLP/ to enter
GLP mode .
The calibration month and day will appear
on the main display and the year on the
secondary display.
• If no calibration was performed, the
factory calibration message, “F.CAL” will
appear on the main display and the
instrument returns to
measurement mode
after three seconds.
LAST CALIBRATION DATE
G L P
• The instrument will return automatically
to measurement mode by displaying
dashes on the LCD.
FACTORY CALIBRATION RESTORE