Which Helium Analyser to Buy

narked at 90 · 13th August 2007, 21:07

Quote: (Originally Posted by Sutty)

Looks very nice!
Using ultrasound is interesting - I wonder if it would work in a condensing environment? Imagining a Rebreather which has 3 cyls O2, air, heliox, and runs at constant PO2, and constant END! Would enable a gradual controlled switch fro He to N2.

i used this analyser in a couple of test and found it spot on for both o2 and helium, and some of the extra features were an added bonus,
i was going into talks with them about using there technology in one of our projects.
kind regards john

bletso · 14th August 2007, 10:30

It would depend on what you are doing. I use a ATOMX as it does a continuos sampling, great for real time mixing in a blending system. It's a crapper for field use as it requires a heat up of 5 mins.

Most of the faster units use a capture analyze chamber.

Dale

dantheman · 14th August 2007, 12:48

Anyone have any more detailed info on the DiveSoft unit?

The info at the website is cursory. For example:
1) does it also measure O2 content ultrasonically (not just He)?
2) if not, what kind of cell does it use? (ie consumables)
3) does the unit need periodic calibration?
4) batteries?

etc, etc in a geeky vein.
--dan

Ben Field · 14th August 2007, 14:43

Quote: (Originally Posted by dantheman)

Anyone have any more detailed info on the DiveSoft unit?

The info at the website is cursory. For example:
1) does it also measure O2 content ultrasonically (not just He)?
2) if not, what kind of cell does it use? (ie consumables)
3) does the unit need periodic calibration?
4) batteries?

etc, etc in a geeky vein.
--dan

Dan, read the manual (available as PDF from their website) for more information, seems it has a normal R-22 O2 cell inside, there is also a reccomended calibration routine and I gather it takes a 9V PP3.

Skipbreather · 14th August 2007, 14:49

Quote: (Originally Posted by JS1scuba)

Um threadus interuptus ......

TekCheck Helium / Oxygen Analyzer
HeCheck Helium Only Analyzer

Bought a TecCheck a few months ago and recently gave it quite a workout when setting up various new stage tanks. Was very pleased.

Ken

**PhilSiswick** · 14th August 2007, 16:05

Quote: (Originally Posted by Ben Field)

Dan, read the manual (available as PDF from their website) for more information, seems it has a normal R-22 O2 cell inside, there is also a reccomended calibration routine and I gather it takes a 9V PP3.

Based on their product list, it looks like an R17D. Nice, as my elcheapo uses one. Now, when is Christmas???

Cheers,

Mark Chase · 14th August 2007, 16:14

I have the Analox. Very easy to use for 02 and he. Seems to work fine after two years of ownership. Standard flow restrictor wasts very little gas during analisis.

I am very happy with it and amazingly havent managed to break it yet.

ATB

Mark Chase

dantheman · 14th August 2007, 18:36

Quote: (Originally Posted by Ben Field)

Dan, read the manual (available as PDF from their website) for more information, seems it has a normal R-22 O2 cell inside, there is also a reccomended calibration routine and I gather it takes a 9V PP3.

Duh! Missed the pdf. Thanks!

Looks interesting. I wonder about the choice to use an O2 sensor.
Could be the math for determining O2 ultrasonically was too intensive?

Coz, I'm sure I'm not the only one who would buy a gas analyzer
that doesn't need consumables . . .

--dan

**DeepBlueInnovation** · 14th August 2007, 23:50

I have just ordered a Difesoft unit, so will post some feedback when it arrives.

Jim Culter · 13th June 2008, 18:19

I have an Analox ATA for 3 years and have not had any
trouble. It is reliable and easy to use.
Only problem is I cannot find a replacement oxygen
& helium sensors in the US.

Jim

13th August 2007, 21:07	#11 (permalink)
narked at 90 John Routley Current Rebreather/s: Inspiration Classic Other CCR Dolphin Home Build Other Rebreather/s: Other CCR Dolphin Home Build Join Date: Feb 2005 Location: middlands uk Posts: 1,029	Re: Which Helium Analyser to Buy Quote: (Originally Posted by Sutty) Looks very nice! Using ultrasound is interesting - I wonder if it would work in a condensing environment? Imagining a Rebreather which has 3 cyls O2, air, heliox, and runs at constant PO2, and constant END! Would enable a gradual controlled switch fro He to N2. i used this analyser in a couple of test and found it spot on for both o2 and helium, and some of the extra features were an added bonus, i was going into talks with them about using there technology in one of our projects. kind regards john __________________ CHECK OUT OUR INTERWEBS FOR CUSTOM REBREATHER UPGRADES *WWW.NARKEDAT90.CO.UK* *WWW.GRPSERVICES.COM*
(Offline)

14th August 2007, 10:30	#12 (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: 256	Re: Which Helium Analyser to Buy It would depend on what you are doing. I use a ATOMX as it does a continuos sampling, great for real time mixing in a blending system. It's a crapper for field use as it requires a heat up of 5 mins. Most of the faster units use a capture analyze chamber. Dale
(Offline)

14th August 2007, 12:48	#13 (permalink)
dantheman Emoticonoclast Current Rebreather/s: Sport Kiss rEvo Other Rebreather/s: Classic Kiss rEvo Join Date: May 2005 Location: NorthEast USA Posts: 390	Re: Which Helium Analyser to Buy Anyone have any more detailed info on the DiveSoft unit? The info at the website is cursory. For example: 1) does it also measure O2 content ultrasonically (not just He)? 2) if not, what kind of cell does it use? (ie consumables) 3) does the unit need periodic calibration? 4) batteries? etc, etc in a geeky vein. --dan
(Offline)

14th August 2007, 14:43	#14 (permalink)
Ben Field CK+Shearwater Current Rebreather/s: Classic Kiss Other Rebreather/s: Sport Kiss Join Date: Aug 2005 Location: London, England Posts: 1,621	Re: Which Helium Analyser to Buy Quote: (Originally Posted by dantheman) Anyone have any more detailed info on the DiveSoft unit? The info at the website is cursory. For example: 1) does it also measure O2 content ultrasonically (not just He)? 2) if not, what kind of cell does it use? (ie consumables) 3) does the unit need periodic calibration? 4) batteries? etc, etc in a geeky vein. --dan Dan, read the manual (available as PDF from their website) for more information, seems it has a normal R-22 O2 cell inside, there is also a reccomended calibration routine and I gather it takes a 9V PP3. __________________ Know your PPO2, Pre-breath, Use checklists, Validate cells at 6mtrs, Use pure O2 at or near surface, Use a BOV, Don't dive Solo, Change Slime and Cells as recommended by Manufacturer and RTFM! Beware Fridge Suck! www.hugsac.org.uk
(Online)

14th August 2007, 14:49	#15 (permalink)
Skipbreather Reads the fine print Current Rebreather/s: Megalodon Home Build Other Rebreather/s: Not Bought Yet MK 15.X Home Build Join Date: Mar 2005 Location: Chicago, Illinois, USA Posts: 557	Re: Which Helium Analyser to Buy Quote: (Originally Posted by JS1scuba) Um threadus interuptus ...... TekCheck Helium / Oxygen Analyzer HeCheck Helium Only Analyzer Bought a TecCheck a few months ago and recently gave it quite a workout when setting up various new stage tanks. Was very pleased. Ken __________________ "Entropy RULES! Enjoy the interim."
(Offline)

14th August 2007, 16:05	#16 (permalink)
PhilSiswick Phil Siswick, Tango Current Rebreather/s: Evolution Other Rebreather/s: Inspiration Vision Join Date: Apr 2006 Location: Oxford, UK Posts: 996	Re: Which Helium Analyser to Buy Quote: (Originally Posted by Ben Field) Dan, read the manual (available as PDF from their website) for more information, seems it has a normal R-22 O2 cell inside, there is also a reccomended calibration routine and I gather it takes a 9V PP3. Based on their product list, it looks like an R17D. Nice, as my elcheapo uses one. Now, when is Christmas??? Cheers, __________________ Phil (WSKD 0001) I have always felt that the dive I am on is not nearly important as the dives I plan to be on the rest of my life. Tom Rose, 2007 The person who gets the farthest is generally the one who is willing to do and dare. The sure thing boat never gets far from shore. Charles A. Lindbergh www.hugsac.org.uk
(Offline)

14th August 2007, 16:14	#17 (permalink)
Mark Chase I go down for ages Current Rebreather/s: Classic Kiss Other Rebreather/s: Inspiration Classic Join Date: Jan 2005 Location: Kent Posts: 2,700	Re: Which Helium Analyser to Buy I have the Analox. Very easy to use for 02 and he. Seems to work fine after two years of ownership. Standard flow restrictor wasts very little gas during analisis. I am very happy with it and amazingly havent managed to break it yet. ATB Mark Chase __________________ Is it supposed to make that noise ? I took my unit to the dive shop and demanded they bolt on every thing that would fit. Join my elite diving teem and get a Tshirt "Doing It Chasey"Hammerhead Eccr Advanced Diving System
(Offline)

14th August 2007, 18:36	#18 (permalink)
dantheman Emoticonoclast Current Rebreather/s: Sport Kiss rEvo Other Rebreather/s: Classic Kiss rEvo Join Date: May 2005 Location: NorthEast USA Posts: 390	Re: Which Helium Analyser to Buy Quote: (Originally Posted by Ben Field) Dan, read the manual (available as PDF from their website) for more information, seems it has a normal R-22 O2 cell inside, there is also a reccomended calibration routine and I gather it takes a 9V PP3. Duh! Missed the pdf. Thanks! Looks interesting. I wonder about the choice to use an O2 sensor. Could be the math for determining O2 ultrasonically was too intensive? Coz, I'm sure I'm not the only one who would buy a gas analyzer that doesn't need consumables . . . --dan
(Offline)

14th August 2007, 23:50	#19 (permalink)
DeepBlueInnovation Learning to Kiss Current Rebreather/s: Not Bought Yet Other Rebreather/s: Prism Topaz Not Bought Yet Join Date: Sep 2005 Location: Perth, Western Australia Posts: 358	Re: Which Helium Analyser to Buy I have just ordered a Difesoft unit, so will post some feedback when it arrives.
(Offline)

13th June 2008, 18:19	#20 (permalink)
Jim Culter New Member Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Jan 2007 Location: Sarasota, Florida Posts: 31	Re: Which Helium Analyser to Buy I have an Analox ATA for 3 years and have not had any trouble. It is reliable and easy to use. Only problem is I cannot find a replacement oxygen & helium sensors in the US. Jim
(Offline)

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode