Hanna Instruments HI 83749 - Manual (Page 15)

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DELETE CALIBRATION
HI 83749 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. 2005.02.23).
• 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.
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• Measurement date in YYYY.MM.DD format.
• Measurement time in hh:mm format.
• Delete the last record panel (only for last record).
• Delete all records.
DELETE LAST RECORD
To delete the last record, scroll through the log menu
until the delete last record panel is displayed.
• To delete the last record, press SETUP/DEL when
the “Delete last records” panel is displayed.
• The instrument asks for confirmation. Press the
LOG/CFM key to confirm the last record is
deleted. To abort the delete function, press
READ instead of LOG/CFM.
• After the record is deleted, the instrument goes
immediately to the first panel of the previous
record. If the log becomes empty, “----” will be
displayed for one second and the instrument
will return to measurement mode.
DELETE ALL RECORDS
To delete all records, scroll through the log until
delete all records panel is displayed.
• To delete all records press SETUP/DEL when the
“Delete all records” panel is displayed.