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Operational Guide
41
Contaminated Buffer
This warning message appears in order to alert that
the buffer could be contaminated. Refresh your
buffer 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 file of the latest calibration information. Use the
q p
keys to
scroll the stored information. This includes the buffers used, temperature of
the buffer, and time and date of the last calibration, the sensor serial number
and the calculated offset 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 offset 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
Summary of Contents for Edge
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Page 92: ...Warranty 92 Notes ...
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