Hello All,
Me 2 never had readout problems with VR3 fitted oxygen sensor in inhale bag
(with original Delta P P-Port sensor holder !)
However, what has been worrying me the last 2 years is accurate calibration
of the 2 or 3 sensors fitted in a Dolphin.
By properly flushing the breathing loop with pure oxygen for several times, we can never be sure that the loop is COMPLETELY filled with the same oxygen content in oxygen cilinder !
Other (E)CCR's do can since the position of the sensors is very close to where O2 is put into the system.
Therefor I fitted a 3 sensor T-Piece made by Tecme (thanks again Martin) which is fitted between inhale bag and inhale breathing hose..
One sensor is for VR3 and 2 others to rEvodream display and HUD (Works excellent Paul !) Check out some pictures here :
http://www.rebreatherworld.com/photo...8/limit/recent
Still I am not sure that I can properly calibrate but my procedure has changed.... after reading Jradomski's article "accurate PO2 calibration" (thank u Joe !)
When I want to calibrate my 3 sensors, I unscrew the T-piece from breathing loop and use Joe's calibration method.. Takes about 5-7 minutes..
On a liveaboard in choppy sea a very handy method.. I can do the cal 'inside'..
Just wanted to share my experience
safe diving
Ivan