Trimix Fills and Helium Analysers

**UWSojourner** · 13th March 2007, 18:17

Quote: (Originally Posted by Paul Brookes)

That certainly is cheap.
I've not heard of them before (but then I am a trimix newbie). A quick google seems to say they are ok, but does anyone have any 1st hand experience?
Is this a good buy, or do you get what you pay for?

Thanks, Paul

They have a good reputation AFAIK. I have one and like it. Search here and on TheDecoStop. More info is probably out there already.

Sutty · 13th March 2007, 19:03

$550=£285 according to XE.com, but you never get that exchange rate as a punter. Don't forget you'll get charged VAT and duty by customs too.

bletso · 13th March 2007, 19:52

I have one and it is very good. The only drawback is the 5 min warmup. The real plus is it samples real time which on continuous blend is real nice.

Dale

Nick uk. · 13th March 2007, 20:58

Quote: (Originally Posted by decoweenie)

IMHO, everyone should know the O2% before making any dives at ANY depth.

Absolutely....... but i don't 'analize' my air refills.

decoweenie · 14th March 2007, 02:58

Quote: (Originally Posted by Nick uk.)

but i don't 'analize' my air refills.

If you ask, you will get plenty of horrible stories about "air" fills as well. Trust me...

PeteS · 14th March 2007, 07:06

Well I can remember getting some gas fills from an old dive shop in a harbour that is one harbour to the east from Portland Harbour, that we analysed on the boat prior to sailing and we took them all back and made the shop remix them.

On a another occasion, strangely enough in the same shop, we were sworn and cursed at by a woman in there because we analysed our nitrox fills with our own anlyser, in the shop. "How dare you do such a thing, all our fills are correct... rant rant......" she went on and on.

After these occasions, I went over to home blending. I don't need other people to give me a bad gas day, I can do it myself now!

decoweenie · 14th March 2007, 07:13

Quote: (Originally Posted by PeteS)

On a another occasion, strangely enough in the same shop, we were sworn and cursed at by a woman in there because we analysed our nitrox fills with our own anlyser, in the shop. "How dare you do such a thing, all our fills are correct... rant rant......" she went on and on.

I am sure if you report that to whichever agency she operates under, they might pull her rug since ALL agencies promote verification when receiving tanks from shop.

If I don't even completely trust myself when blending my own gas in a relax environment at home, why should I trust a stranger doing it correctly in a busy dive shop ?

Paul Brookes · 14th March 2007, 12:22

Quote: (Originally Posted by Nick uk.)

Absolutely....... but i don't 'analize' my air refills.

I have been in the habit of calibrating my o2 analyser against my air diluent so it is calibrated "under pressure" when I check the O2.
Not exactly scientific, but it verifies the dil fill and stops me getting 102% O2 fills

Tom Rose · 14th March 2007, 21:31

Quote: (Originally Posted by Philippe GERIN)

Check here, they running a sale: $400 for He and $550 fo Heliox

ATOMOX Inc. - Clearance Items
With the £ so high, it's simply a bargain.
Best
Philippe

Thanks for the link Philippe,

I ordered one and a spare today....as usual this site is a great source of information.

Tom

onthetrain · 15th March 2007, 18:52

Quote: (Originally Posted by Paul Brookes)

Hi

I recently completed my Mod2 so can now start seeing some cost benefits of owning a rebreather in terms of Helium fills.
My query is about analysing trimix fills at the filling station. I have yet to buy an He analyser and having spend an horendous amount of money on additional equipment and training to get my trimix ticket, it will be a while before I do.
Therefore, I expected my lds to have the facilities to verify the contents of a fill they provide. However, when I got my diluent and stage cylinders filled recently, they advised me that they do not have an He analyser as most of the trimix divers have their own. So I had to take it on faith that the he content was correct.

As it happens, my dive was at the NDAC in Chepstow and they let me use their analyser, but I wasn't impressed that I was expected to undertake a 50m dive on the assumption that the blender got their sums right.

If I was performing my own blending, then I would buy my own analyser, but surely if a shop is supplying the fill, they should be able to analyse it.

Is this right? Am I expecting too much here?

Thanks, Ramble over.
Paul

Paul,
As you have discovered Dorset Dave does not have a He analyser. However Keith Forward does.

13th March 2007, 18:17	#21 (permalink)
UWSojourner Pacific Northwest Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: Feb 2005 Location: Portland Oregon Posts: 556	Re: Trimix Fills and Helium Analysers Quote: (Originally Posted by Paul Brookes) That certainly is cheap. I've not heard of them before (but then I am a trimix newbie). A quick google seems to say they are ok, but does anyone have any 1st hand experience? Is this a good buy, or do you get what you pay for? Thanks, Paul They have a good reputation AFAIK. I have one and like it. Search here and on TheDecoStop. More info is probably out there already.
(Offline)

13th March 2007, 19:03	#22 (permalink)
Sutty Classic Kiss diver Current Rebreather/s: Classic Kiss Other Rebreather/s: Join Date: Jun 2005 Location: Glossop, Derbyshire, UK Posts: 789	Re: Trimix Fills and Helium Analysers $550=£285 according to XE.com, but you never get that exchange rate as a punter. Don't forget you'll get charged VAT and duty by customs too. __________________ Never forget that life is a finite resource.
(Online)

13th March 2007, 19:52	#23 (permalink)
bletso An independent diver. Current Rebreather/s: Dolphin Home Build Other Rebreather/s: Dolphin Home Build Join Date: May 2006 Location: Louisville, KY, USA Posts: 242	Re: Trimix Fills and Helium Analysers I have one and it is very good. The only drawback is the 5 min warmup. The real plus is it samples real time which on continuous blend is real nice. Dale
(Online)

13th March 2007, 20:58	#24 (permalink)
Nick uk. Made in England. Current Rebreather/s: Inspiration Classic Azimuth Other Rebreather/s: Azimuth Join Date: Nov 2005 Location: Viale C.Colombo 75 Marina di Carrara. MS 54036 Italy Posts: 579	Re: Trimix Fills and Helium Analysers Quote: (Originally Posted by decoweenie) IMHO, everyone should know the O2% before making any dives at ANY depth. Absolutely....... but i don't 'analize' my air refills. __________________ If it aint broke....don't fix it, and if it is.............well......get another one! divechief2000@hotmail.com
(Offline)

14th March 2007, 02:58	#25 (permalink)
decoweenie Crash Test Dummy Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: Feb 2005 Location: Cairo Posts: 5,510	Re: Trimix Fills and Helium Analysers Quote: (Originally Posted by Nick uk.) but i don't 'analize' my air refills. If you ask, you will get plenty of horrible stories about "air" fills as well. Trust me... __________________ "...after a while you get bored offering advice to a bull that like to keep butting the fence with its head rather than walking through the open gate..." - Rebreather World PM
(Offline)

14th March 2007, 07:06	#26 (permalink)
PeteS Consent Issued! Current Rebreather/s: Inspiration Classic Inspiration Vision Other Rebreather/s: Join Date: Jun 2005 Location: New Zealand Posts: 515	Re: Trimix Fills and Helium Analysers Well I can remember getting some gas fills from an old dive shop in a harbour that is one harbour to the east from Portland Harbour, that we analysed on the boat prior to sailing and we took them all back and made the shop remix them. On a another occasion, strangely enough in the same shop, we were sworn and cursed at by a woman in there because we analysed our nitrox fills with our own anlyser, in the shop. "How dare you do such a thing, all our fills are correct... rant rant......" she went on and on. After these occasions, I went over to home blending. I don't need other people to give me a bad gas day, I can do it myself now! __________________ Pete S. http://www.steggle.co.nz Every silver lining has a cloud
(Offline)

14th March 2007, 07:13	#27 (permalink)
decoweenie Crash Test Dummy Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: Feb 2005 Location: Cairo Posts: 5,510	Re: Trimix Fills and Helium Analysers Quote: (Originally Posted by PeteS) On a another occasion, strangely enough in the same shop, we were sworn and cursed at by a woman in there because we analysed our nitrox fills with our own anlyser, in the shop. "How dare you do such a thing, all our fills are correct... rant rant......" she went on and on. I am sure if you report that to whichever agency she operates under, they might pull her rug since ALL agencies promote verification when receiving tanks from shop. If I don't even completely trust myself when blending my own gas in a relax environment at home, why should I trust a stranger doing it correctly in a busy dive shop ? __________________ "...after a while you get bored offering advice to a bull that like to keep butting the fence with its head rather than walking through the open gate..." - Rebreather World PM
(Offline)

14th March 2007, 12:22	#28 (permalink)
Paul Brookes New Member Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Jan 2006 Location: Bournemouth, UK Posts: 35	Re: Trimix Fills and Helium Analysers Quote: (Originally Posted by Nick uk.) Absolutely....... but i don't 'analize' my air refills. I have been in the habit of calibrating my o2 analyser against my air diluent so it is calibrated "under pressure" when I check the O2. Not exactly scientific, but it verifies the dil fill and stops me getting 102% O2 fills __________________ I was so horrified to read about the dangers of rebreather diving that I immediately gave up reading
(Offline)

14th March 2007, 21:31	#29 (permalink)
Tom Rose Still Learning Current Rebreather/s: Other CCR Home Build Other Rebreather/s: Prism Topaz Other CCR Home Build Join Date: Oct 2005 Location: USA,North Carolina Posts: 330	Re: Trimix Fills and Helium Analysers Quote: (Originally Posted by Philippe GERIN) Check here, they running a sale: $400 for He and $550 fo Heliox ATOMOX Inc. - Clearance Items With the £ so high, it's simply a bargain. Best Philippe Thanks for the link Philippe, I ordered one and a spare today....as usual this site is a great source of information. Tom __________________ The 50-50-90 rule: Anytime I have a 50-50 chance of getting something right, there's a 90% probability I'll get it wrong the first time. www.atlimp.com
(Offline)

15th March 2007, 18:52	#30 (permalink)
onthetrain New Member Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Dec 2005 Location: POOLE Posts: 62	Re: Trimix Fills and Helium Analysers Quote: (Originally Posted by Paul Brookes) Hi I recently completed my Mod2 so can now start seeing some cost benefits of owning a rebreather in terms of Helium fills. My query is about analysing trimix fills at the filling station. I have yet to buy an He analyser and having spend an horendous amount of money on additional equipment and training to get my trimix ticket, it will be a while before I do. Therefore, I expected my lds to have the facilities to verify the contents of a fill they provide. However, when I got my diluent and stage cylinders filled recently, they advised me that they do not have an He analyser as most of the trimix divers have their own. So I had to take it on faith that the he content was correct. As it happens, my dive was at the NDAC in Chepstow and they let me use their analyser, but I wasn't impressed that I was expected to undertake a 50m dive on the assumption that the blender got their sums right. If I was performing my own blending, then I would buy my own analyser, but surely if a shop is supplying the fill, they should be able to analyse it. Is this right? Am I expecting too much here? Thanks, Ramble over. Paul Paul, As you have discovered Dorset Dave does not have a He analyser. However Keith Forward does.
(Offline)

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