Hanna Instruments HI 98280 - Manual (Page 39)

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• After confirmation, the following messages are displayed: “Storing data on
probe, please wait...”, “Updating GLP data, please wait...” and “Calibration
completed”.
• Press OK to return to the “Calibration” menu.
• To return to the main menu, press ESC repeatedly.
• To restore the factory calibration data, select the corresponding option in the
“ORP calibration” menu and then press <OK>.
4.7 TEMPERATURE CALIBRATION
The meter is factory calibrated for temperature readings. If necessary, tempera-
ture calibration may be performed as explained below.
• Select “Temperature” option from the “Calibration” menu and press <OK> to
enter the temperature calibration mode.
• Insert the probe in a thermostatic bath.
• Select the measure unit (°C, °F or K) and in-
sert the bath temperature value (measured with
a reference thermometer).
• When the reading in stable, “Ready” appears
on the LCD.
• Press <Confirm> to store the calibration point.
• After confirmation, the following messages are
displayed: “Storing data on probe, please
wait...”, “Updating GLP data, please wait...”
and “Calibration completed”.
• Press <OK> to return to the “Calibration” menu.
• To return to the main menu, press ESC repeatedly.
Note Note Note Note Note The meter allows a maximum difference
of ±2°C between the current reading
and the set value. If this condition is
not satisfied, the display shows the
warning message “Max +/-2°C is al-
lowed”.