Quote: (Originally Posted by
sabgia)
Unlikely a fill whip issue as the cell mV behave as expected (i.e. always 0.99/0.21 x mV(air)).
Perhaps the colder conditions you're in results in a lower vapor saturation in your loop? What is your loop temp? and what type of cells do you use?
Hi sabagia, I was refering to what I assumed were mv readings of the cells post cal with what you thought was 100% O2. If the post cal readings in air are .24 or .25, then you didn't have 100% O2 during the high point cal. But I'm not that familiar with the meg cal procedure, so I might be missing something.
As for my loop temp, I don't dive here in NY. I only dive in warm water-Indo, PNG, P.I., Caribbean, etc-and there's no temp sensor in the Prism. The Prism has a radial scrubber which flows opposite the Meg-in to out. So most of the condensate winds up on the scrubber bucket wall and then collects on the bottom of the bucket and is absorbed by a pad. The Prism sensors are higher output, around 22mv new, like the ones in MKs and specially made for the Prism. I can't remember the name of the company. But I've only had a sensor voted out 2 times from what I assumed was condensation on the face. I say assumed because when the sensor got voted out due to lagging, I shook around and it came back into line and I guess the big drop of moisture fell off. But this happened with the same sensor both times and since I replaced it I've had no cells voted out, so it could have just been faulty. Galvanic O2 sensors are not the most dependable things. -Andy