Campbell Scientific CS547A conductivity sensor

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The CS547A conductivity sensor measures the electrical conductivity (EC), total dissolved solids and temperature of water and is suitable in most surface water, laboratory and industrial applications.

EC is measured with three cylindrical stainless steel electrodes mounted in an epoxy housing. The electrode configuration eliminates ground loop problems associated with sensors in electrical contact with earth ground.

To reduce electrochemical reactions, minimise corrosion and extend the probe’s life, the electrodes are AC coupled and a bipolar excitation is applied. Temperature is sensed with a thermistor.

The CS547A is easy to clean and resistant to corrosion and has rounded ends to facilitate installation and removal.

For groundwater applications, a weighted option is available to facilitate stand-alone submersion.