DIY O2 analyzers:

[joens]

Patrick Duffy is the best to deal with. his instructions are excellent they come with an excellent troubleshooting guide . I was going to build one from the instructions in Oxyhackers guide .but getting the kit from oxycheq was cheaper than paying the shipping on seperate parts. I am gathering parts that I come across for another one .If you have the parts around already you can put one together from scratch .but you will not be dissapointed with the oxycheq kit.
Joens

 

[Former FLL Now MSP Diver]

I've been looking at O2 analyzers, and came across these three kits. The photos all look similar making it seem they all come from the same basic parts list.

http://www.oxycheq.com/el_cheapo_II.html

http://oxygenanalyzer.com/YOUDOIT.htm

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3630187860&category=16056

The one on eBay at $39 is cheaper, but doesn't include an oxygen sensor. But it seems there are a few different options ranging from $59 up.

Is there a difference in the brand of O2 sensor you can buy for the kit? What should I look for besides the useful listed life of the sensor on the spec?

Marc

 

[Padipro]

Hay Marc,

I built my analyzer from the plans right there on the RC web site. They give you all the parts info you need and even a wiring diagram to work from. Most of the parts can be found at Radio Shack or ordered on line. It works just as good as any name brand analyzer I've checked it against and even with mounting it in a Pelican case cost me less then $100. The most expensive part is going to be the sensor. I have found them on ebay for about $20 each before but that's few and far between.

There are some differances between the sensors, mostly it's the type of connection used to connect the sensor to the analyzer. I think the 1/8 inch "headphone" style jack is the most popular and the easiest to find parts for.

I'll take some pictures of mine this morning when I get home and post them on my MSN site for you to take a look at if you like.

You can also take a look at the Oxy Hackers guide to get some more info a DIY analyzer.

Scott

DIY site

 

[Scuba_Vixen]

I ordered the digital panel meters (DPM) , the 60 month Analytical Instruments sensors, and the flow restrictors, from RC ... and All the rest came from Radio Shack, (Otter case from the LDS) since that's all I have available for sources here. I wanted to always have a "second opinion" so I built 2 complete analysers in one case. Most people that see it ask where I got a double one like that....


Darlene

 

[Padipro]

That's sweet. Very nice job.

Scott