Rebreather Carbon Dioxide Monitoring

Many people have been asking me about the various ways that the Sentinel rebreather monitors carbon dioxide levels. The new Sentinel Expedition offers a gaseous CO2 monitor that is the world’s first commercially available carbon dioxide sensor proofed and designed for operation in high humidity, high oxygen rebreather breathing loops.

The Sentinel Expedition CO2 monitor actively measures carbon dioxide while the diver is breathing on the loop. It is capable of real time monitoring that enables the diver to see rising levels and warns the diver in time for them to complete a dive, reduce activity levels or bail out.

The alarm thresholds have been set at  5mB and 10mB. Although the diver may not detect any symptoms as they begin to rise above 5mB, it is prudent to wrap up a dive. It is generally agreed, that levels of 15-20 mB are capable of inducing unconsciousness in a diver, therefore the 10mB threshold is realistic bail out alarm level.

The monitor consists of a combination of filters and sensors that can survive within the high humidity of the rebreather loop and is powered from the unit’s onboard rechargeable battery.

In the my next blog post, I will outline the other ways carbon dioxide is monitored in the Sentinel LSS.  Jill Heinerth

Comments

[un grolandais]

bonjour
c 'est sur un bon
recycleur c est pas donne
en France tu peux en
faire facilement je suis de bretagne
entre les moulins et les carrieres ya de quoi
faire sans de l atlantique et ses epaves
en carriere a becon par exemple tu ne verra pas d enchanteur courrir nu dans la foret de broceliande ;une
epave d avion ;un indien et je sais plus quoi une region a visiter
region ;vers les cotes d'amour
oups cela a change les cotes d armor
de belles epaves repere des corsaires et des pirates pour la banane flambee au rhum
plonger au suunto helo plus au sud
le bananier vous tend ses bras
un passage sur lyon s impose pour dejeuner dans un petit bouchon hum la bonne saucisse
sans oublier de boire un gros jaune plus au sud
kiki faut visiter
la France avec ses amis et avoir un bon fil
d ariane...

sans oublier boire du champagne

ses musees ;au nord de
belles plages

[Olga Sno wet]

for be honest my kiki husband
gives to me to buy this rebreather
but i don't know it's more expansive
and my husband by its experiance already detects the co2

a friendgirl say to
me that the new IDA was better
i hesitate too with a Vision.

Olga Wet