Re: hwOS Tech: 2.23beta released
Date: September 06, 2017 07:26AM
Hello duese & all other interrested users,
when you are doing an oxygen flush, you are actually leaving ccr mode (with ppO2 defined by a fixed setpoint) and enter scr / oc mode (ppO2 defined by fraction of O2 in the gas x depth). So, if you are diving a cR or OSTC 3 with external sensor connected, the computer will measure your +/- 85% and use it for deco calculation - all fine right now. If you do not have an external sensor, you have to tell the computer that you have switched the operating mode. You will do that by defining an oc gas with an oxygen percentage of your assumed 85% and then after the flush make a bailout to this gas.
Please be aware that on a rebreather, during heavy decompression, the inert gases N2 and He will come out of your body and unlike to oc, where they are breathed away into the water, will accumulate in the breathing loop, thus degrading your breathing gas over time. That is why frequent re-flushes are requirend and doing so may bring your ppO2 in the loop a little bit further up.