Expired Calibration; Last Ec Calibration Data - Hanna Instruments HI98192 Instruction Manual

GLP is a set of functions that allows storage and retrieval of data regarding the maintenance and
status of the electrode.
All data regarding EC and NaCl calibration is stored for the user to review when necessary.

EXPIRED CALIBRATION

The instrument is provided with a real time clock (RTC), in order to monitor the time elapsed since
the last EC/NaCl calibration.
The real time clock is reset every time the instrument is calibrated and the "Expired Calibration"
status is triggered when the instrument detects a calibration time out. The "CAL DUE" tag will start
blinking to warn the user that the instrument should be recalibrated.
The calibration time out can be set (see SETUP for details, page 35) from 1 to 7 days or can be disabled.
For example, if a 4 days time out has been selected, the instrument will issue the alarm exactly 4
days after the last calibration.
However, if at any moment the expiration value is changed (e.g. to 5 days), then the alarm will be
immediately recalculated and appear 5 days after the last calibration.
Notes: When the instrument is not calibrated or calibration is cleared (default values loaded)
there is no "Expired Calibration", and the display always shows the "CAL DUE" tag blinking.
When an abnormal condition in the RTC is detected, the instrument forces the "Expired
Calibration" status.

LAST EC CALIBRATION DATA

The last pH calibration data is stored automatically after a successful calibration.
To view the EC calibration data, press GLP when the instrument is in the EC measurement mode.
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