Hanna Instruments HI847492 - Manual (Page 14)

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• If the calculated calibration coefficients are off
specifications, the “CAL Err” message is
displayed.
DELETE CALIBRATION
HI 847492 is factory calibrated. It is possible to
restore factory calibration by deleting last performed
calibration.
To delete last calibration, follow the next steps:
• Enter the GLP feature by pressing GLP
.
The date of the last calibration will be displayed
on the LCD (e.g. 2007.01.23).
• Press READ to scroll through the information
related to calibration. The last panel is the one
with “Delete Calibration”.
• Press SETUP/DEL to delete the current
calibration. After deletion the instrument will
automatically return to measurement mode and
the factory calibration is restored.
Note: For beer analysis it is recommended to
work always with the AVG mode on.
• Turn the instrument ON by pressing ON/OFF.
• When the LCD displays “----”, the instrument
is ready. The current time appears on the
secondary LCD, if selected in Setup menu.
• Follow the procedure described in the
MEASUREMENT TECHNIQUE section.
Note: To remove any fingerprints or dirt, wipe
the cuvet thoroughly with a lint-free cloth. If
HAZE MEASUREMENT