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I have one. Its probably 4 years old now, seems to be fine. Should probably get some bump gas and test it out.
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.
planning to use the analyzer on vacation
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.