Notes regarding the measurement of the oxidation-reduction
potenteial
15
Notes regarding the measurement of the
oxidation-reduction potenteial
Every delivered SENECT ORP Sensor is inspected by our
quality check with respect to perfect functioning and
calibration. Despite the high quality standards, interferences
of the sensor signal based on the measurement principle and
properties of the medium can occur.
Drift: In most cases, electro-chemical measurements
show a drift with time. Therefore, the sensors must be
recalibrated regularly to achieve best precision in the
measurements. Due to polarity effect, an enhanced drift
after starting the operation of electrodes can occure
within the first days. Please consider this in the
interpretation of the measurements.
Leakage currents: In aquaculture applications, e.g. in
ponds or tanks, are often 230 V or 380 V consumers like
pumps connected. Please pay careful attention that all
consumers meet current legislation requirements and
that there are no damaged parts, e.g. porous cables.
Insufficent insulated consumers can lead to leakage
currents, which influence ORP measurements.
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