Specifications

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2.1.3 Sacrificial anodes
Aluminium sacrificial anodes slowly dissolve in sea water thus protecting the stainless steel hull
through a galvanic reaction. Cunifer10 hulls do not require anodes. Anodes will approximately
last for three years, unless the buoys are located in warm (> 20 ºC) or polluted sea water.
However, no guarantee can be given and the rate of anode material consumption must be
established through timely inspections.
2.1.4 Bags of drying agent
In a hermetically sealed buoy the bags with drying agent will protect buoy electronics from
short-circuiting by condensing water vapour. The bags will take up moisture inside the buoy.
Only after drying the bags they are able to perform their task during the next deployment, see
subsection 5.9.8. Bags are located near the electronics unit and, in case of WR-SG and DWR-
MkIII buoy models, also near the electronics in the sensor compartment.