EN250 Rating

[Kamaros]

I see that my Signature Series First Stage is certified to the EN250 standard, rather than EN250A. Based on that, is it correct to assume that I should be getting myself a second first stage and using an H-valve or learning to dive doubles if I want to dive in cold and/or deep water?

 

[michael-fisch]

Diving in cold or deep water without a complete 2nd reg system is just proof of a diminished desire to keep living, same as doing deco dives witthout.
Please run or drive real fast to a diveshop in order to get a 2nd reg system, dual valves for your tanks or doubles, learn how to turn the tank valves off on a freeflowing reg and don't stick your head underwater without 2 working and completely seperate regs.
I hate reading fatal accident reports.

Michael

 

[runsongas]

en250 vs en250a doesn't mean anything for deep 6 because they dont sell octos with reduced performance. monterey isn't particularly cold enough to cause freezeups for the most part. redundancy is always good.

 

[rhwestfall]

We just recently had deep6 regs under the ice. I think you are over-analyzing this, but you have to decide for yourself.

 

[abnfrog]

en rating is really just a European thing I dive a non en rated ccr and im still here

 

[michael-fisch]

many of us also buy en rated dive gear and then modify/improve it. Afterwards it works much better, but if closely examined has lost it's en rating due to the modifications.
as an example, this is what I've done so far to my SF2 rebreather:
ScubaPro MK17 (not EVO) 1st stages instead of Apeks DS4
Golem Gear DSV
IqSub MAVs
Cooper Hoses
Higher ohmage isolation resistors in the head
Shore 90 O-Ring on the top of the Scrubber
Filed angle brackets on the scrubber in order to make it easier to drop in
JJ Scrim Kit Filters inside the Scrubber (Really important, I almost killed myself after inhaling around 100ml of sorb dust loaded liquid. see http://www.rebreatherworld.com/showt...ing-inhalation)
Long Backplate
57mm Standoff under the bottom tube
Replaced all Flex hoses with MTM rubber hoses
1 Kg P-Weight
Shortened the counterlung movement distance by 5cm
and the newest mod to make it easier to get the head off the upper tube:
I filed a wide screwdriver slot into the top of the upper tube front and back (but nowhere near as deep as where the O-Ring sits) just wide enough for my biggest flatbladed screwdriver. Now I stick the screwdriver in the front slot, twist, go around to the back slot, twist, and the head is now off.

What I've now got works much better than the original RB but can no longer be considered to be either EN or CE certified.

Michael

 

[Diver below 83]

I know the deep 6 guys have had them in some cold situations. Maybe Landon can chime in

 

[JackD342]

I see that my Signature Series First Stage is certified to the EN250 standard, rather than EN250A. Based on that, is it correct to assume that I should be getting myself a second first stage and using an H-valve or learning to dive doubles if I want to dive in cold and/or deep water?

I was actually just clicking around their site, and couldn't find any mention of EN250, "A" or otherwise.
Where did you see it?
(maybe I missed it, but I tried several different ways of finding it)

 

[Diver below 83]

I was actually just clicking around their site, and couldn't find any mention of EN250, "A" or otherwise.
Where did you see it?
(maybe I missed it, but I tried several different ways of finding it)

It’s on the bottom of every reg of theirs. It’s on my deep 6 set

 

[abnfrog]

we just had them under the ice 3 weeks ago ......