Quote: (Originally Posted by
Fiona)
I am hoping to get myself trimix qualified sometime this year.
I have had a Vandangraph O2 analyser for about 10 years, so it has served me well. At the weekend the cell failed so I need to buy a new cell.
My question is do Helium analysers ever come up forsale secondhand ? I don't remember seeing one in the forum personal ads.
The answer is very, very rarely and even then, they tend to demand a high price simply because everyone wants one and they're so rare! Two models tend to pop up - the Analox ATA and the Vandagraph, both of which are very good (personally I prefer the Vandagraph but others swear by the Analox - each to their own).
Personally I wouldn't bother getting one, though - unless you're blending your own gas and do a lot of expedition diving (I mean expedition in the true sense of the word - ie. ordering a boat-full of Js and blending your own 'in the field'), just pop into a dive shop that provides a trimix service and use theirs...