What does complying with the Ballast Water Management Convention have to do with damaged sensors?

Background info

According to IMO and USCG rules the vast majority of seagoing vessels have to perform some kind of ballast water treatment. This affects not only the targeted microorganisms but also any other item in contact with the treated water. Oxidants from ballast water treatment, both electrolytic and UV light, such as chlorine and hydroxyl radicals can be responsible for typical sensor damages.

And this is only on top of existing problems like electro-chemical corrosion from runaway currently of poorly installed cathodic hull protection systems, mechanical damage from particles in the inlet flow or pressure shocks from overfilling the tanks!

What we can observe from our long-term experience: Initially, the sensor signals (or calculated tank level) may appear to drift. Later the tank is reported empty while being full or vice versa. Or the sensor fails completely. This may lead to inaccurate tank level readings, time consuming manual sounding, delayed ballasting or de-ballasting and failed vetting inspections. In other words: Additional cost.

Why choose SANSEN pressure and tank level sensors

  • Ceramic measuring cell inert to avoid electro-chemical corrosion and mechanical damage by solid particles
  • Highly resistant duplex steel body
  • Double sealing system for measuring cell and cable entry
  • 5-year warranty possible
  • All relevant class approvals
  • Submerged installation in FO tanks up to 100°C possible
  • Temperature compensation available
  • Also available for hazardous zone installation


Complying with the Ballast Water Management Convention does not have to mean replacing damaged sensors every few months. Avoid sensor damage. Make the right choice and go for Sander quality.

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