Mailing List Archive Mailing List Archive
I have been looking at diferent O2 analysers available here in Oz and am in a bit unclear on what specifications I should be guided by. It seems that the MSA MiniOx I O2 analyser in accurate to +/- 1%, graded in increments of .1% and with a helium variation on the O2 reading of .2%. (these figures are taken from MSA spec sheet). My question quite simply is..."Is this specification suitable for O2 analysis in Enriched Air/Nitrox & Mixed Gas diving?" It is feasable with this unit to be reading say 37.5% O2 when in fact the EANx O2 content could in effect be 36.5%.; the same variation could be compounded by analysing a mix tank & reading 16.6% O2 when the mix contained 15.4%. I am fully aware that safe diving practices should ensure that you do not dive to the limit of the tables for the particular breathing mix and that you should allow a reasonable J-factor when customising your own tables. This does not though take away the apparent problem that a filling station (or an instructor) may be supplyng a mix which has a 2% varience. We are a little isolated down here in Oz, so your comments would be of interest ( in particular, any filling station or instructor who has practical advice/experience in operating the MiniOx I O2 anaylser to supply fills). Thanks................Richard
Navigate by Author:
[Previous]
[Next]
[Author Search Index]
Navigate by Subject:
[Previous]
[Next]
[Subject Search Index]
[Send Reply] [Send Message with New Topic]
[Search Selection] [Mailing List Home] [Home]