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At 20.03 95-07-18, <UnderhillP@ao*.co*> wrote:
>>The AGA/Interspiro ACSC/DCSC a mechanical system that is supposed to warn
>>the user if the dosage of fresh gas is out of order. This system activates
>>a
>>valve in the loop, giving the diver a waring by increased work of breathing.
>>
>>
>Does this sound like a good idea for a warning device?  Maybe ... Maybe not!
> Why not a spring loaded needle that stabs you in the back of the neck?  At
>least it wouldn't interefere with your breathing.

This system is the same as the conventional "reserve-valve" (J-valve ?)
used here. Until now it has been "mandatory" to have this system on
SCUBA's in Sweden.

On the ACSC I thnink that the system is triggered when there has elapsed
a longer than normal time since the last dose of fresh gas.

/Sten Meyer                                       m87stme@mt*.ch*.se*

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