it is called normalization of deviance https://www.youtube.com/watch?v=NcgeWkG1HCg and it is dangerous.
Analyzing your own nitrox tanks
- Thread starter Synonymous
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As a shop owner who blends and sells nitrox, I don't sell mixes that are as much as 1% off the target without the divers consent, and then I don't let them have it until it is analyzed and signed for in our log. The log is a step a lot of shops seem to skip (as well as checking cert cards) and I will not allow our operation to fall into that trap. The boat has left late on numerous occasions because we were analyzing tanks on the dock, and that is OK
Donnah
Contributor
My husband and I work together when we are analyzing our tanks -- one will do the Nitrox, the other will check the pressure. I wouldn't trust anyone else. Depending on where we are, sometimes we will analyze our tanks before breakfast and do all 6 at once. I don't like being hurried on the dive boat. I like to take my time and make sure everything is OK.
fnfalman
Contributor
First of all, no analyzers are going to read exactly the same. Different sensors, different pieces that are assembled with human errors built in.
Secondly, if you don't know how to use a particular analyzer, then ask the owners. Hopefully they'd know how to use their own equipment.
Thirdly, if you feel that strongly about Nitrox analyzing, then get your own analyzer.
And yes, I insist on either doing the analyzing myself or witnessing the tech/shop/crew member does it. And yes, I would take my closest dive buddy's words for a Nitrox tank that he analyzed and vice versa. We dive with each other often enough that we know our own expectations.
Secondly, if you don't know how to use a particular analyzer, then ask the owners. Hopefully they'd know how to use their own equipment.
Thirdly, if you feel that strongly about Nitrox analyzing, then get your own analyzer.
And yes, I insist on either doing the analyzing myself or witnessing the tech/shop/crew member does it. And yes, I would take my closest dive buddy's words for a Nitrox tank that he analyzed and vice versa. We dive with each other often enough that we know our own expectations.
For the El Cheapo anyone who can use a dremel tool and a soldering pencil should be able to do it in less than an hour. Took me about 45 minutes.
hijack warning:
those of you with the El Cheapo, what is the cost upgrade to the more sensitive pot? Didn't seem to see the cost with that upgrade.....
hijack over, back to your regularly scheduled programming.....
those of you with the El Cheapo, what is the cost upgrade to the more sensitive pot? Didn't seem to see the cost with that upgrade.....
hijack over, back to your regularly scheduled programming.....
No no, less sensitive pot is what you mean, even though that seems illogical...
I've never bought one or tried to build one. But I've read a few reviews and everyone else seems to have taken longer. Maybe they didn't have a dremel tool.
Yeah, the time consuming part is just cutting the square holes in the plastic case for the rocker switch and the digital window to look good. I have a dremmel, but I found it quicker with your basic drill bit and small file to clean up the edges. The soldering is the least time consuming part. Buy it and give it to your 10 yr old to do....
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