The conductivity probe in the 202759 series from Jumo, which has been designed to comply with EHEDG guidelines, meets the highest hygienic requirements. The conductivity probe is fitted with a fast-responding integrated Pt1000 temperature sensor, and is made from Natur-Peek. It will be available with the usual process connections, such as a DN 40/50 milk cone, clamp, Varivent, and SMS. An immersion version and threaded types are also planned. Three different measuring methods can be distinguished for electrolytic conductivity measurement: conductive with 2-electrode cells, with 4-electrode cells, or non-contact inductive. None of these methods can totally replace the others – the best meas-uring method must be chosen to suit the specific application. Instruments that operate on the inductive method are used for very high conductivities (100 µS/cm to 2000 mS/cm), and really demonstrate their advantage when the medium being measured is highly contaminated or tends to form deposits. Since inductive conductivity sensors do not produce a normalised or standardised signal, the probes are primarily intended to be connected to the CTI-750 transmitter or the Aquis 500 Ci.
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