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ORP voltage
pH value
Potentiometry
Reset
Resolution
Slope
Stability control
(AutoRead )
Standard solution
Test sample
Zero point
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The ORP is caused by oxidizing or reducing substances dissolved in
water if these substances become effective on an electrode surface
(e. g. a gold or platinum surface).
The pH value is a measure of the acidic or basic effect of an aqueous
solution. It corresponds to the negative decadic logarithm of the molal
hydrogen ions activity divided by the unit of the molality. The practical
pH value is the value of a pH measurement.
Name of a measuring technique. The signal (depending on the mea-
sured parameter) of the electrode is the electrical potential. The elec-
trical current remains constant.
Restoring the original condition of all settings of a measuring system.
Smallest difference between two measured values that can be dis-
played by a meter.
The slope of a linear calibration function.
Function to control the measured value stability.
The standard solution is a solution where the measured value is
known by definition. It is used to calibrate a measuring system.
Designation of the test sample ready to be measured. Normally, a test
sample is made by processing the original sample. The test sample
and original sample are identical if the test sample was not processed.
The zero point of a pH combination electrode is the pH value at which
the electromotive force of the pH combination electrode at a specified
temperature is zero. Normally, this is at 25 °C.
Multi 3410
ba75863e02
12/2009
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