Quote:
| Originally Posted by Brian Garner Hi
Has anyone ever tried an automatic setpoint adjuster, not depth triggered but the setpoint changes according to the loop PO2.
I am thinking about setting the lower setpoint at say 0.7. If a manual injection was done to push the setpoint to 1.1 then the controller would automatically set the sp to 1.3 and hold it. To lower the SP just flush and dump till the Loop is under 0.9 and the SP is switched to 0.7 again. This may be a bit fiddly on the ascent but it also means you dont need a separate switch for setpoint adjustment.
Brian Garner |
I can see several issues, You really want to be able to change the "high" setpoint possibly underwater, maybe to say 1.0 for long dives. Also, you may want to change the setpoint to a low value before ascent, but wil be unable to do so if your dil PPo2 at your bottom depth is too high, this wastes oxygen on ascent. There is also the obvious big problem of accidental changes if you need to flush your loop anytime. interesting idea though.
John
John