see my sollution at the bottom of the page. http://fstab.nl/en/parts My experience is that water always finds a way along the wire. With a u shap tube and the tube watertight at the bottom it will eliminate that.

Nico


Håkan Elmqvist wrote:
I have for some years monitored sea water temperature with DS1820s and OWFS. I have soldered the sensors to a twisted pair telephone wire and put them into a short piece, ca 50 mm, of 12 mm of copper tubing. The tubes have a 3 mm hole in the middle where I have injected normal RTV one component acetoxy-polymerising silicone. After that I have let the silicone skin to polymerise in air for a couple of days and then put them into the sea. The disadvantage of this seems to be the lifetime of the sensors, which seems to be around a year and a half. Now I have lost my third sensor (I have not done any post mortem) and would like a better method to protect the DS1820. The method must withstand ice.
Any tip is appreciated.
Håkan





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