Quote: (Originally Posted by
JonORunde)
I have the original VR3-kit from ISC on my COPIS-Meg, cable plugged into right lung, the little K1d cell.
The cell calibrates perfectly on air and O2 on the surface.
When diving, the VR3 show _really_ high ppO2 (like 2bar+)
Is this a design-flaw?
My thougt was that either
1. It is something wrong with the cell/vr3/something
or, more likely
2. The cell is located in the right lung. In the bottom of that lung, O2 is added, as this is a COPIS-meg. ON the top of the lung, the T-pieces are, and gas flows through when I breath.
As gas goes the path of least resistance, why should any mixed gas force itself down into the lung ?
If so, all I measure, is high ppO2-content that is at the bottom of the lung, sometimes flushed even more with pure O2.
Am I right or what?
jon o
The design where you have and ADV port in your right lung will not work when you are diving the unit manually, either by having a COPIS or just diving manually. THis is due to the fact that you will be adding O2 straight on to the cell every time and it will be spiking.
As i see it there is only one sollution for you and that it to switch side with the ADV.
The only other sollution is to purchase another right lung witout the port and buy the adapter that goes ontop the head that allowes you to have a K1D next to the other cells.
/Jonny