It appears you have not yet registered with our community. To register for free click here
Rebreather World
       

Go Back   Rebreather World RBW Members General Section General Rebreather Diving

Reply
 
LinkBack Thread Tools Display Modes
Old 26th January 2012, 22:50   #1 (permalink)
Richie Burr
 
diverreb's Avatar

 
O2ptima FX
Join Date: Mar 2007
Location: Dover, DE
Posts: 1,480
diverreb has much to be proud of diverreb has much to be proud of diverreb has much to be proud of diverreb has much to be proud of diverreb has much to be proud of diverreb has much to be proud of diverreb has much to be proud of diverreb has much to be proud of diverreb has much to be proud of diverreb has much to be proud of diverreb has much to be proud of
Send a message via AIM to diverreb Send a message via Skype™ to diverreb
Old But Perfectly Linear Cells

Quote: (Originally Posted by Chris at Silent World) View Original Post
As a last ditch - I have 3 OLD but perfect teledynes you can have with full disclaimer of course. Output and performance was fine last week. You can have them for free.
Above snipped from a different thread...

OK... I just removed three Teledynes from my Breather... They are two years old. They are still spot on after full tests with my cell checker, which I do on a regular basis. AI's of the same age, but never opened, failed. New AI's ordered and on the way....

Maybe I should change my name of Don here...

If the cells are linear up to 2.0 what happens if you use them..... Do they go bad all of the sudden, more so than fresh cells? Is it a gradual decline? Do they just start acting a little flaky?

Why, if they are linear and pass the cell tests can't they be used, as long as you verify them at depth?

I don't do "expeditionary" or deep dives.... Most of what I do is now 140 and shallower... Bailout isn't a problem, should the need arise.

Richie
__________________
Richie Burr.... Probing the Deep Blue Seas since 1966!
(Offline)
 
Digg this Post!Add Post to del.icio.us
Reply With Quote
Old 26th January 2012, 23:04   #2 (permalink)
RBW Member
 
Dsix36's Avatar

 
rEvo
Optima Dolphin
Join Date: Aug 2007
Location: Deerfield_Beach, Florida
Posts: 3,487
Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute
Re: Old But Perfectly Linear Cells

Welcome to my nightmare! It is just a matter of how much risk you are willing to accept. I personally believe that if they are working, then I can still use them. Of course, This does not mean to have all of the cells be 2 years old or from the same batch. You do need some variance in cell dates to be able to validate during a dive (the chances of multiple failures from different batches is much slimmer).

Just remember that listening to an idiot such as myself may very well get your arse dead.







.
(Offline)
 
Digg this Post!Add Post to del.icio.us
Reply With Quote
Old 27th January 2012, 04:50   #3 (permalink)
Supporting Member
 
offpro's Avatar

 
rEvo, FGT
Meg
Join Date: Dec 2006
Location: Up North, Norway
Posts: 428
offpro has a spectacular aura about offpro has a spectacular aura about offpro has a spectacular aura about offpro has a spectacular aura about offpro has a spectacular aura about offpro has a spectacular aura about
Send a message via MSN to offpro
Re: Old But Perfectly Linear Cells

Can you check the response time with your cell checker?
__________________
-Mats-
(Offline)
 
Digg this Post!Add Post to del.icio.us
Reply With Quote
Old 27th January 2012, 06:47   #4 (permalink)
It's Hammertime!
 
Pawel Szopinski's Avatar

 
Hammerhead
Megalodon, Inspiration
Join Date: Feb 2008
Location: London, United Kingdom
Posts: 775
Pawel Szopinski is a name known to all Pawel Szopinski is a name known to all Pawel Szopinski is a name known to all Pawel Szopinski is a name known to all Pawel Szopinski is a name known to all Pawel Szopinski is a name known to all Pawel Szopinski is a name known to all Pawel Szopinski is a name known to all Pawel Szopinski is a name known to all Pawel Szopinski is a name known to all Pawel Szopinski is a name known to all
Re: Old But Perfectly Linear Cells

The cell will get slower and slower before the MV output slightly increases then it will die shorty afterwards or you might not even spot it and the cell will simply die from one day to another.
__________________
Hammerhead CCR Instructor
Hammerhead Repair Facility
Golem Gear Dealer
www.silentthrill.com
(Online)
 
Digg this Post!Add Post to del.icio.us
Reply With Quote
Old 27th January 2012, 10:53   #5 (permalink)
Down to no good
 
kwinter's Avatar

 
rEvo III, Flex
Optima, GEM
Join Date: Sep 2005
Location: NJ - USA
Posts: 1,814
kwinter has a reputation beyond repute kwinter has a reputation beyond repute kwinter has a reputation beyond repute kwinter has a reputation beyond repute kwinter has a reputation beyond repute kwinter has a reputation beyond repute kwinter has a reputation beyond repute kwinter has a reputation beyond repute kwinter has a reputation beyond repute kwinter has a reputation beyond repute kwinter has a reputation beyond repute
Re: Old But Perfectly Linear Cells

Same here, Richie. Teledynes from March 2010 still going strong, although cell #3 has become noticiably slower. It can't be long before they start dying, so I'm going to replace one now and every 3 months if I can go that long. I'd rather replace it before there is a problem than wait for it to go bad. Not really a safety concern, but I hate having to scrub a dive.

Ken
(Offline)
 
Digg this Post!Add Post to del.icio.us
Reply With Quote
Old 27th January 2012, 10:55   #6 (permalink)
Kevin Hagerich
 
Helium_diver's Avatar

 
KISS Classic
ccr dolphin
Join Date: Feb 2005
Location: Baltimore MD USA
Posts: 174
Helium_diver is an unknown quantity at this point
Re: Old But Perfectly Linear Cells

Ritchie,

Give them to Mike , He can get another 2 years out of them easy.

Helium_diver
(Online)
 
Digg this Post!Add Post to del.icio.us
Reply With Quote
Old 27th January 2012, 11:00   #7 (permalink)
Down to no good
 
kwinter's Avatar

 
rEvo III, Flex
Optima, GEM
Join Date: Sep 2005
Location: NJ - USA
Posts: 1,814
kwinter has a reputation beyond repute kwinter has a reputation beyond repute kwinter has a reputation beyond repute kwinter has a reputation beyond repute kwinter has a reputation beyond repute kwinter has a reputation beyond repute kwinter has a reputation beyond repute kwinter has a reputation beyond repute kwinter has a reputation beyond repute kwinter has a reputation beyond repute kwinter has a reputation beyond repute
Re: Old But Perfectly Linear Cells

Oh yeah, thanks Don for the new signature line.
__________________
Ken

Quote: (Originally Posted by Dsix36) View Original Post
Just remember that listening to an idiot such as myself may very well get your arse dead.
(Offline)
 
Digg this Post!Add Post to del.icio.us
Reply With Quote
Old 27th January 2012, 14:46   #8 (permalink)
Richie Burr
 
diverreb's Avatar

 
O2ptima FX
Join Date: Mar 2007
Location: Dover, DE
Posts: 1,480
diverreb has much to be proud of diverreb has much to be proud of diverreb has much to be proud of diverreb has much to be proud of diverreb has much to be proud of diverreb has much to be proud of diverreb has much to be proud of diverreb has much to be proud of diverreb has much to be proud of diverreb has much to be proud of diverreb has much to be proud of
Send a message via AIM to diverreb Send a message via Skype™ to diverreb
Re: Old But Perfectly Linear Cells

Quote: (Originally Posted by Helium_diver) View Original Post
Ritchie,

Give them to Mike , He can get another 2 years out of them easy.

Helium_diver
Kevin,

I would but he can't get his current cells out... says he never looks at them anyway so why bother replacing them.

Richie
__________________
Richie Burr.... Probing the Deep Blue Seas since 1966!
(Offline)
 
Digg this Post!Add Post to del.icio.us
Reply With Quote
Old 27th January 2012, 14:49   #9 (permalink)
Richie Burr
 
diverreb's Avatar

 
O2ptima FX
Join Date: Mar 2007
Location: Dover, DE
Posts: 1,480
diverreb has much to be proud of diverreb has much to be proud of diverreb has much to be proud of diverreb has much to be proud of diverreb has much to be proud of diverreb has much to be proud of diverreb has much to be proud of diverreb has much to be proud of diverreb has much to be proud of diverreb has much to be proud of diverreb has much to be proud of
Send a message via AIM to diverreb Send a message via Skype™ to diverreb
Re: Old But Perfectly Linear Cells

Quote: (Originally Posted by offpro) View Original Post
Can you check the response time with your cell checker?
Not technically, but I can hook my handsets directly to the Cell Checker and see that they respond quickly to the increase in O2. No noticeable lag time.

Richie
__________________
Richie Burr.... Probing the Deep Blue Seas since 1966!
(Offline)
 
Digg this Post!Add Post to del.icio.us
Reply With Quote
Old 27th January 2012, 14:51   #10 (permalink)
Richie Burr
 
diverreb's Avatar

 
O2ptima FX
Join Date: Mar 2007
Location: Dover, DE
Posts: 1,480
diverreb has much to be proud of diverreb has much to be proud of diverreb has much to be proud of diverreb has much to be proud of diverreb has much to be proud of diverreb has much to be proud of diverreb has much to be proud of diverreb has much to be proud of diverreb has much to be proud of diverreb has much to be proud of diverreb has much to be proud of
Send a message via AIM to diverreb Send a message via Skype™ to diverreb
Re: Old But Perfectly Linear Cells

Quote: (Originally Posted by Pawel Szopinski) View Original Post
The cell will get slower and slower before the MV output slightly increases then it will die shorty afterwards or you might not even spot it and the cell will simply die from one day to another.
Pawel,

Thanks.... That's what I was looking for....

Richie
__________________
Richie Burr.... Probing the Deep Blue Seas since 1966!
(Offline)
 
Digg this Post!Add Post to del.icio.us
Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT. The time now is 09:15.


RebreatherWorld.Com 2005 - 2013
Rebreather World, RBW and the Rebreather World Logo are Trademarks
All rights reserved, no republishing of content without written permission.
By using this website you have agreed to our Terms & Conditions of Use

free counters

Search Engine Optimization by vBSEO 3.1.0

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285