TECHNICAL DATA
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OPTISENS IND 1000
www.krohne.com
12/2016 - 4001969202 - MA OPTISENS IND 1000 R02 en
6.1 Measuring principle
6.1.1 Inductive conductivity measurement
The inductive measurement method enables largely maintenance-free acquisition of specific
conductivity, even in the toughest media conditions. In the principle of inductive measurement,
the sensor consists of a sender-recipient-coil.
When a magnetic field is generated by an electrical coil and a second electrical coil is placed
next to it, a certain amount of electric energy will be transferred to it. In an inductive conductivity
sensor, the process media flows directly through the middle of both coils. The amount of energy
transferred from the primary to the secondary coil is directly proportional to the electrical
resistance of the solution.
Figure 6-1: Inductive measurement
1
Flow direction
2
Sinusoidal AC voltage supply
3
Induced voltage measurement
4
Exposed temperature sensor Pt1000
5
Measuring medium
