Hanna Instruments HI 98186 - Manual (Page 50)

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Note: • If a pressure calibration has been previously performed it is possible
to erase the calibration by pressing the Clear functional key.
• The “Calibration cleared” message will be displayed for a few
seconds and the meter will return to the main screen.
• If the measured pressure is too far from the calibration point the
“Wrong pressure” error message will be shown on the display and
the calibration can’t be confirmed.
Verify if the value read from the reference barometer was entered correctly.
Contact the Hanna Service if calibration cannot be performed.