Currently manufactured FMCL/OTSCL rebreathers?

[rjack321]

Appreciate the legend of the Meg FMCL being cut in half at depth and the unit continued to work.

Not a legend. And it was more than just the CLs. Both handsets were cut off too. Back when this version of the Meg was being made the available competitor CCRs all had their brains in the handsets and a failed handset battery, cut or failed cable would disable the unit. (I have no idea the extent this is still true). On the Meg the brains are still in the head and it will maintain the last established setpoint even if the handsets are completely disabled. Leon decos out on the HUD with the ruined CLs.

 

[211ratsbud]

Not a legend. And it was more than just the CLs. Both handsets were cut off too. Back when this version of the Meg was being made the available competitor CCRs all had their brains in the handsets and a failed handset battery, cut or failed cable would disable the unit. (I have no idea the extent this is still true). On the Meg the brains are still in the head and it will maintain the last established setpoint even if the handsets are completely disabled. Leon decos out on the HUD with the ruined CLs.

There is some early relationship between dive can and ISC can. I have a aftermarket dive can board and during some portion of its creation I was told that there is a significant amount of overlap between the protocols.

Currently shearwater can bus will continue to use the last set point with all of the information that I am aware of. I have not tested this.

Whether that's derived from one of the other (SW vs ISC) I cannot tell you. But it's a no-nonsense idea.

That is why the calibration on CAN bus is stored in the head.

In summary I do believe that any SW electronics equipped CCR will now do the same.

Some non SW equipped CCRs will also do the same as mentioned.

 

[mr_v]

Currently shearwater can bus will continue to use the last set point with all of the information that I am aware of. I have not tested this.

Correct-ish. At least with Petrel 3, if the controller fails, the SOLO board will maintain the lowest setpoint.

But to the point - I would not want to destroy my rEvo's lungs during the dive to see if I could de-water them ;-) The OTSCL/FMCL setup has an advantage there.

 

[PEDiver]

I have always been intrigued by the ISC Minnows but because I have a HH/Defender, I have always opted for the BMCLs (which I really like). Has anyone tried to fit the Minnows/TOS counterlung style to a unit like the HH/Defender? Or any non-ISC unit for that matter? Might not be worth the hassle, but curious nonetheless.

 

[211ratsbud]

I have always been intrigued by the ISC Minnows but because I have a HH/Defender, I have always opted for the BMCLs (which I really like). Has anyone tried to fit the Minnows/TOS counterlung style to a unit like the HH/Defender? Or any non-ISC unit for that matter? Might not be worth the hassle, but curious nonetheless.

I have a friend who is going down this road right now. Looking at minnows on a defender/ HH

 

[PEDiver]

I have a friend who is going down this road right now. Looking at minnows on a defender/ HH

I would be very interested to follow your buddy’s progress on this if he’s documenting the process of retrofitting them for the HH/Defender.

 

[rjack321]

I would be very interested to follow your buddy’s progress on this if he’s documenting the process of retrofitting them for the HH/Defender.

Its pretty easy to swap out the T pieces

 

[mr_v]

Well, this thread got me inspired - Meg's incoming. Will keep you posted ;-)