Opinions on OxyCheq Expedition Carbon Monoxide analyzer?
- Thread starter SaltyWombat
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- carbon monoxide
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Ulfhedinn
-Skill Collector-
I have one. Its probably 4 years old now, seems to be fine. Should probably get some bump gas and test it out.
What are you specifically wanting to know?
I asked in another thread but didn't get a response. I would love to know what the exact process is for testing a tank with the OxyCheq Expedition. Do I need a flow regulator? Do I just crack the valve and hold the Expedition up to it? For how long do I need to let the gas flow for a test? Etc. Trying to figure out if this is a good option for testing on the boat right before a dive.
Why not test when you gauge your tanks at the LDS? Seems a bit more stable environment than on the boat right before you jump in.
runsongas
Contributor
there isn't much local diving in CO, my guess is @DeltaWardog is planning to use the analyzer on vacation where the tank is provided or refilled on the dive boat rather than on shore at a physical dive shop
You are correct! I do not dive locally or own tanks. I am looking to purchase an analyzer to test tanks provided by dive ops, and I typically do not have access to the tank until I'm picked up at the pier and am already en route to the dive site on the boat.
Ignore this native tropical diver 
forget sometimes the rest of the world works a bit differently.
forget sometimes the rest of the world works a bit differently.
Since I couldn't find any answers here I contacted OxyCheq customer support and this is what they told me:
"It works just like our O2 analyzer. You can take a reading off the tank using the flow cap and placing it against the valve. The better method would be to use a BC Flow Restrictor so you do not over pressurize the sensor resulting in false readings.
Within 5 seconds you will know if you have bad gas and the alarm will sound."
So it sounds like a quick and easy test using supplied hardware (flow cap) but you'd want to use a flow restrictor to get fully accurate readings. I'm not even sure where to get a flow restrictor. But if I end up buying the Expedition I think I'll be ok with a trip just using the flow cap to see how it goes. It'll be 100% more CO testing than I've done on my other dives!
"It works just like our O2 analyzer. You can take a reading off the tank using the flow cap and placing it against the valve. The better method would be to use a BC Flow Restrictor so you do not over pressurize the sensor resulting in false readings.
Within 5 seconds you will know if you have bad gas and the alarm will sound."
So it sounds like a quick and easy test using supplied hardware (flow cap) but you'd want to use a flow restrictor to get fully accurate readings. I'm not even sure where to get a flow restrictor. But if I end up buying the Expedition I think I'll be ok with a trip just using the flow cap to see how it goes. It'll be 100% more CO testing than I've done on my other dives!
runsongas
Contributor
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