Quote: (Originally Posted by
dave burke)
thank you for your reply
i do have a voltage meter, this is the only way
i know that you can check the MV on a cell,
if there is another meter that you can buy that checks the voltage, i did not know this.
The Meg has a built in MV on the handsets. This is one part of good Rebreather design. Your life checking cells is much harder than mine.
Quote:
i have been told that cells start low , eg 8MV when the MV start's to get higher 10 to 13.5
that's the cells way of telling you that they are at the end of there life.
this info. to me did not seem right .
I would trust your instinct on that. I know I would call
.
What matters is the cell linearity to the SP you want to use. Most people (with built in mV meters) can at least check to PO2 = 1.0. (and then in water check)
Quote: (Originally Posted by
Dsix36)
according to my checklist:
the MV (in air) should be at least 9.0mv, replacement is indicated if lower than this.
I've had a few exceptions to the following...
The cells I've had at 8.0-9.0 in air tended to last longer and be more reliable. Below 8, some remained linear but were getting slow. Cells binned at less than 9.0 are likely cells wasted.
Just my experience from a bag of 17 cells (collected over 3 years).