Sensors, transmitters,compact devices and assemblies

Conductivity measurement

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Conductivity sensors using the inductive method

In the case of inductive conductivity measurement, a transmitter coil generates a magnetic alternating field that induces an electrical voltage in the medium. This sets the positively or negatively charged ions in the liquid in motion and an electrical alternating current flows through the liquid. This current produces a magnetic alternating field in the receiver coil. The induction current produced in the coil in this way is evaluated by the electronics system and used to calculate the conductivity.

Benefits • No restrictions for high conductivity values due to polarization effects • No galvanic contact with the medium • Not sensitive to contamination

A magnetic alternating field induces an electrical voltage in the medium

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1 Indumax CLS50D/CLS50 robust sensor Concentration measurements for acids, bases and salts, product treatment; excellent chemical resistance properties thanks to PEEK or PFA; up to 125 or 180°C; Ex approval monitoring, wastewater

2 Indumax CLS54D/CLS54 hygienic sensor, Smartec CLD134 measuring system Food and life sciences industries; ideally suited to detection of phase separation; certified hygienic design: FDA, EHEDG, 3-A, USP <87> and <88> class VI control of CIP processes and

3 Smartec CLD18 cost-effective, hygienic measuring system Food & beverage industry; ideally suited for control of CIP processes and detection of phase separation; certified hygienic design: FDA, 3-A , EHEDG; optional IO-Link for easy integration

into the plant infrastructure