Rebreather World - View Single Post - PO2 Set-points (WHEN!)

steveharriss · 13th April 2008, 15:34

I was taught that a good rule of thumb was to change to the higher set-point at approximately 2/3 of the planned maximum depth. I was not taught to switch to a lower set-point on ascent as you can have issues with the PO2 dropping anyway if you're not careful.

In fairness to your Instructor though I'd go back to him and say you're unclear on what you should be doing. You've paid your money and are entitled to be clear on procedures that may affect your safety.

My Instructor gave me an open invitation to contact him any time in the future if I needed to check things out and most good Instructors will have a similar policy I'm sure.

NB You will find that this isn't an issue once you get to a reasonable dive depth anyway!

13th April 2008, 15:34	#2 (permalink)
steveharriss Bubble free by choice Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: Sep 2006 Location: North Yorkshire Posts: 165	Re: PO2 Set-points (WHEN!) I was taught that a good rule of thumb was to change to the higher set-point at approximately 2/3 of the planned maximum depth. I was not taught to switch to a lower set-point on ascent as you can have issues with the PO2 dropping anyway if you're not careful. In fairness to your Instructor though I'd go back to him and say you're unclear on what you should be doing. You've paid your money and are entitled to be clear on procedures that may affect your safety. My Instructor gave me an open invitation to contact him any time in the future if I needed to check things out and most good Instructors will have a similar policy I'm sure. NB You will find that this isn't an issue once you get to a reasonable dive depth anyway!
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