Hanna Instruments HI 120 - Manual (Page 26)

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LAST RELATIVE mV CALIBRATION DATA
Last Relative mV calibration data is stored automatically after a successful
calibration.
To view the Relative mV calibration data, press 2nd then GLP key or simply
GLP from the left keyboard (HI 120) while in Relative mV measurement mode.
The instrument will display the Relative mV GLP information.
• The date (yyyy.mm.dd) of the last calibration as in pH GLP mode.
Press the ARROW keys to view the next logged calibration parameter
(pressing the key):
• The Relative mV calibration offset and time (hh:mm) as in pH GLP mode.
• The instrument ID as in pH GLP mode.
Notes: • Press 2nd then GLP key at any moment and the instrument
will return to measurement mode.
• If calibration has not been performed, the instrument displays
“no CAL” message blinking.