| Re: Lazy cells: how much is too much?
If you know your gas is 1.4, and your solenoid is firing away with this gas going across the sensors, then that's a fairly positive indication your cal or cell is off. Time to SCR (or OC) your way out, no? There's no assumption about the solenoid not going off. It can be heard with a hood, and if there was any doubt, it'd be best to change the SP down further.
Granted your point about testing current limitation, but calibration is nearly/just as important, no? Even on a very deep and extensive dive?
Granted your point about same on and off board diluent. But hypothetically one can use the offboard to inflate wing/suit, test cells and once happy, you flush out your loop with a different onboard gas (using only 1/5 of your onboard supply as you said). Still plenty of room using thirds (not including OB supply).
What I find useful with the plumbing system you helped me derive is that when both supplies are on, the onboard is the preferred feed. The offboard feeds only if the onboard tank is shut-off. So there is only 1 valve to control both supplies and this is an easier valve (onboard) to open/close as needed.
Getting in the water and sinking to bottom is a fairly busy time for me. I used to do the 1.6 spiking routine but it is a (similiar) task more easily done on bottom when bouyancy is set and less occupation. |