Hanna Instruments Edge - Ph GLP Information

Operational Guide
41
Contaminated Buer
This warning message appears in order to alert that
the buer could be contaminated. Refresh your
buer and continue the calibration procedure.
Good Laboratory Practice (GLP) refers to a quality control function used to
ensure uniformity of sensor calibrations and measurements. The dedicated
GLP key opens a le of the latest calibration information. Use the q p keys to
scroll the stored information. This includes the buers used, temperature of
the buer, and time and date of the last calibration, the sensor serial number
and the calculated oset and percent slope. This information is available in
Basic and Standard Modes. This information is also included with every data
log. Newest calibration points report as a solid number, older calibration data
(that is still used) will be displayed blinking.
If calibration has not been performed, the
instrument displays “NO CAL” message blinking.
The pH calibration oset and slope (the GLP slope is
the average of the calibration slopes; the percentage
is referred to the ideal value at 25º C).
Calibration
Messages
pH GLP
Information