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Glossary
Auto
To protect the batteries, the meter switches off automati-
switch-off
cally after one hour when not operated for a longer period.
Contains selected buffer solutions which can be used for
Buffer set
automatic calibration with the Calimatic
must be selected prior to initial calibration.
Solution with an exactly defined pH for calibrating a pH
Buffer
measuring instrument.
solution
cal
Key for activating calibration.
Calibration
Adjustment of the pH meter to the current electrode char-
acteristics. The zero point and slope are adjusted. A one-,
two-, or three-point calibration can be carried out. With
one-point calibration only the zero point is adjusted.
Calibration
See buffer set.
buffer set
Automatic buffer recognition. Before the first calibration,
Calimatic
the buffer set used must be activated once. The patented
Calimatic
then automatically recognizes the buffer solu-
tion used during calibration.
Combination
Combination of glass and reference electrode in one body.
electrode
Is indicated in % of the theoretical slope (59.2 mV/pH at
Electrode
25 °C). The electrode slope is different for every electrode
slope
and changes with age and wear.
The voltage which a pH electrode gives off at a pH of 7.
Electrode
zero point
The electrode zero point is different for every electrode and
changes with age and wear.
Good Laboratory Practice: Rules for conducting and docu-
GLP
menting measurements in the laboratory.
. The buffer set
Glossary 33
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