Xylem ISE Electrodes Ag-S 60 - Handbuch (Seite 16)

Response times
The response time depends on the concentration range.
It is:
x
several seconds with high concentrations,
x
several minutes near the detection limit.
The measured value is stable if the value does not change by more
than 0.1 mV within 30 seconds.
Interferences
x
Mercury
x
Protein
Aging
Please note that every electrode undergoes a natural aging
process. The response time increases and the slope
decreases with the age of the electrode. The following
factors shorten the lifetime considerably:
x Incorrect storing
x Special measuring conditions (e.g. organic solutions,
frequent measuring with high mercury and protein
concentrations)
x High temperatures
x High changes in temperature
The warranty does not cover damage caused by measuring conditions and
mechanical damage.