gas

Hello all, We've come across a few posts regarding Oxygen and CO sensors when testing Oxygen concentrations and the presence of CO, We'd like to help with any technical questions or support any members have. DD-Scientific

I purchased some gear and included were two analyzers I don't know much about. I already have an analyzer I use and like so I'm not trying hard to educate myself on a couple of older units. Instead of storing them or trashing them, I thought I'd list them for anyone who may find one or both...

I purchased some gear and included were two analyzers I don't know much about. I already have an analyzer I use and like so I'm not trying hard to educate myself on a couple of older units. Instead of storing them or trashing them, I thought I'd list them for anyone who may find one or both...

Hi all, I am in the market to buy a pair of tanks and am looking at the Faber HP133. This will be my first and only owned set of tanks. I am 6'4", 250 lbs muscular. So the common complaints of difficulty in handling these tanks on surface doesn't dissuade me a whole lot. I dive single tank at...

Low hours (<100), runs smoothly. Serviced, cleaned and winterized last summer and has been crated and stored in a dry climate-controlled environment since. Ready to go; just needs gasoline and a little less than a quart of 10W-40 oil! This was pulled from a RIX SA-6G air (scuba) compressor...

Hey everyone I’m just having some problems with changing the gas to air on my i750tc. Under the “Set Gas” screen next to Gas 1, I cycle through the options and it jumps from 100% to 21% which is skipping the “air” option which should be between the two. Has anyone had this issue before? What...

Hey everyone I’m just having some problems with changing the gas to air on my i750tc. Under the “Set Gas” screen next to Gas 1, I cycle through the options and it jumps from 100% to 21% which is skipping the “air” option which should be between the two. Has anyone had this issue before? What...

I was certified OW and Advanced twenty years and did about 30 dives but then stopped diving. I am starting back again and have projects to do a GUE Fundamental Skills course very soon. I downloaded the course materiel and started doing the gas management exercices. I have been doing a lot of...

I'm planning a dive to 275 fsw, shown below, I would like to add an air break after 20 minutes of breathing 100%. I think my best option would be to use my travel gas, 21/35, on the air break, but this brings up the concern about isobaric counterdiffusion. My question is: is isobaric...