Corrosion Monitoring

The right decision

Corrosion Detector Stationary (CDS)

Continuous corrosion monitoring can be carried out with measuring electrodes fused into the glass lining – the P probe – in conjunction with the associated electronics – the Corrosion Detector. The measuring electronics are connected to the parts being monitored by means of two rhodium point-type electrodes and the product. These can be embedded in glass-lined baffles, Pfaudler Quatro-Pipe, thermo-wells or glass-lined valve stems.

The Pfaudler Corrosion Detector works on the principle of the decomposition voltage analysis. This enables the use of corrosion-resistant conductive fittings without causing a false alarm. The electronics provides four output signals – stand-by, ready, alarm and error.

The operating principle is the same as in the Corrosion Detector Portable (CDP).

Technical data – Product overview

 Type CDS
Measuring task Continuous corrosion monitoring
Measuring range >= 6-7 mS/cm
Operating temp. -60 to +200 °C
Operating pressure -1 to +40 bar *
Ex. protection II 1/2 G Ex ia IIB T6 or
II 2G Ex ia IIC T6
Product benefits – Heavy-Duty Design
– Highly resistant glass layer
– Monitors all corrosion-resistant coatings
– No false alarms – unambiguous alarm message only if corrosion is detected
– Installation of corrosion-resistant metals is tolerated
– Safety for equipment and personnel

* Depending on component or nozzle size