Condumax CLS13

2

Endress+Hauser

Function and system design

Measuring principle

AC

I

U

A0024260

 1

Conductive measurement of conductivity

AC Alternating voltage source

I

Current intensity measurement

U

Voltage measurement

Conductivity of liquids is determined with a measuring

arrangement where two electrodes are located in the

medium. An alternating voltage that causes a current

to flow through the medium is applied at these

electrodes. The electrical resistance, or its reciprocal

value - conductance G - is calculated based on Ohm's

law. The specific conductance κ is determined from the

conductance value using the cell constant k, which

depends on the sensor geometry.

Measuring system

A complete measuring system consists of the following components at least:

• The contacting conductivity sensor CLS13

• A transmitter, e.g. Liquiline M CM42

• A measuring cable, e.g. CYK71 for analog sensors

1

2

3

4

A0046736

 2

Example of a measuring system

1

Sensor CLS13

2

Transmitter CM42

3

Sensor cable

4

Pipe nozzle, process connection