Hanna Instruments HI 4321 - Manual (Page 50)

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TEMPERATURE CALIBRATION TEMPERATURE CALIBRATION TEMPERATURE CALIBRATION TEMPERATURE CALIBRATION TEMPERATURE CALIBRATION
The temperature user calibration menu can be accessed at the meter startup by pressing simultaniously three
keys as in the below drawing:
Note: The temperature user calibration is performed in three points: around 0°C, 50°C, 100°C.
To start temperature user calibration:
• Insert the probe in the beaker with water at 0°C.
• Press
to start the temperature calibration. Adjust the
temperature preset value using or when
necessary.
• Wait to stabilize and then press to confirm the
calibration point.
• Repeat the above steps for 50°C and 100°C.
• Save the calibration.
• Press
to return to measure mode.
Note: Press if you want to clear the temperature user calibration.