Hanna Instruments HI 88703 - Manual (Page 26)

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The HI 88703 has built in complete GLP information. The calibration date and the calibration points
are displayed in a comprehensive mode for each range.
To display the GLP information, simply press
CAL key. A screen with instrument serial number and
with information about the calibration is displayed. For further information, press the GLP key.
The GLP contains:
• Instrument serial number
• The last user calibration date, in selected
format and time in hh.mm format. If no calibration
was performed, the “
Factory Calibration” message
is displayed.
• Parameter as Ratio Turbidity or Non Ratio
Turbidity.
• The value of each calibration point (up to
5 points for ratio turbidimeter and 2 points for non
ratio turbidimeter). If the first calibration point was
skipped, the 0.00 value is displayed.
GOOD LABORATORY PRACTICE (GLP)
To restore the factory calibration for the currently
selected range, press
CAL key when in the main
screen. The first screen for the GLP is displayed.
Press the
Delete key to initiate the calibration delete
procedure and then press the CFM key to delete the
user calibration and restore the Factory calibration.
Note: Only the user calibration for the current
selected range is deleted.
RESTORE FACTORY CALIBRATION