ck display tits up

deepnark · 8th January 2007, 16:10

hi all

ok here is my story ,sad but true.
ive changed over display batteries and on the centre display found that when it was put back in the housing and turned on ,it read a minus figure .i have tried the display on the other connectors and it still reads minus !,so its not the wire because when the other displays were tried on the centre, they worked fine.
Any ideas ?

many thanks

Ray

Sutty · 8th January 2007, 16:32

The usual problem with these seems to be moisture, I guess it could move around on handling to replace batteries. I suspect it is moiture on the miniature potentiometer that you adjust to calibrate which causes the problem. Try blowing with compressed air and then leaving somewhere warm (not hot) and dry for a few hours.
You say it gives a -ve display, is that -1, or some variable value?

Neil

lizardland · 8th January 2007, 16:43

Quote: (Originally Posted by deepnark)

ive changed over display batteries and on the centre display found that when it was put back in the housing and turned on ,it read a minus figure

If it isn't moisture then it sounds like the signal from the sensor isn't being picked up. That might mean a broken wire or it might mean the sensor has gone funny (you have tried the sensor on other displays?). If you've pulled the board out of the housing to change the battery then you may have broken the connection between the wire(s) from the sensor and the board. Test for continuity between the board connections and the sensor plug at the other end if you can't see anything obvious. The wires are quite fine and it isn't that hard to break one.

Cheers,

Stuart

Ben Field · 8th January 2007, 16:55

Does it read minus zeros or silly numbers..... or does it read minus but the right numbers?

If it reads the right numbers (likely PPO2) but minus... then it could be that the plug is on the sensor the wrong way round, stupid sounding I know but try it.

Otherwise check the battery voltage... KISS handsets need good batteries IME, a New battery is not necessarily a good one.

Best of Luck,
BEN

diverklondike · 8th January 2007, 17:01

is this an old style or new stye display??

deepnark · 9th January 2007, 06:32

hi all
the batteries are good ,and i have tried different batteries and snsors,the readings i am getting are just numbers ranging from -.0225 to -.0435 and then back around on a loop type effect.
its a drivinn me mad i tells ya.

cheers
ray

***EBT*** · 9th January 2007, 09:45

With those readings, thats an open connection. Either a broken wire or a buggered connection.

Sutty · 9th January 2007, 10:58

Quote: (Originally Posted by deepnark)

hi all
the batteries are good ,and i have tried different batteries and snsors,the readings i am getting are just numbers ranging from -.0225 to -.0435 and then back around on a loop type effect.
its a drivinn me mad i tells ya.

cheers
ray

Still sounds like moisture somewhere - I've had this "counting" problem which drying sorted.

Ben Field · 9th January 2007, 13:51

Quote: (Originally Posted by Sutty)

Still sounds like moisture somewhere - I've had this "counting" problem which drying sorted.

Yeah sorry to say it but Sutty's right on the money. I ended up with new displays following this as it couldn't be "dried" enough seemingly :-(

How old are your display cases, early batches of the 3rd gen (clear case type) are very prone to leaking but Jetsam are very helpful on this.

deepnark · 9th January 2007, 14:14

cheers
i will give it a time drying and see if that helps ,although it didnt really seem damp ,but you never know ........

.watch this space !

cheers
Ray

8th January 2007, 16:10	#1 (permalink)
deepnark RBW Member Current Rebreather/s: Inspiration Classic Classic Kiss Other Rebreather/s: Inspiration Classic Sport Kiss Classic Kiss Join Date: Dec 2005 Location: norfolk uk Posts: 182	ck display tits up hi all ok here is my story ,sad but true. ive changed over display batteries and on the centre display found that when it was put back in the housing and turned on ,it read a minus figure .i have tried the display on the other connectors and it still reads minus !,so its not the wire because when the other displays were tried on the centre, they worked fine. Any ideas ? many thanks Ray
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8th January 2007, 16:32	#2 (permalink)
Sutty Classic Kiss diver Current Rebreather/s: Classic Kiss Other Rebreather/s: Join Date: Jun 2005 Location: Glossop, Derbyshire, UK Posts: 856	Re: ck display tits up The usual problem with these seems to be moisture, I guess it could move around on handling to replace batteries. I suspect it is moiture on the miniature potentiometer that you adjust to calibrate which causes the problem. Try blowing with compressed air and then leaving somewhere warm (not hot) and dry for a few hours. You say it gives a -ve display, is that -1, or some variable value? Neil __________________ Never forget that life is a finite resource. Last edited by Sutty : 8th January 2007 at 16:36. Reason: spelling again
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8th January 2007, 16:43	#3 (permalink)
lizardland Yak Current Rebreather/s: MK 15.X Home Build Other Rebreather/s: Classic Kiss Home Build Join Date: Mar 2005 Location: North... Posts: 1,417	Re: ck display tits up Quote: (Originally Posted by deepnark) ive changed over display batteries and on the centre display found that when it was put back in the housing and turned on ,it read a minus figure If it isn't moisture then it sounds like the signal from the sensor isn't being picked up. That might mean a broken wire or it might mean the sensor has gone funny (you have tried the sensor on other displays?). If you've pulled the board out of the housing to change the battery then you may have broken the connection between the wire(s) from the sensor and the board. Test for continuity between the board connections and the sensor plug at the other end if you can't see anything obvious. The wires are quite fine and it isn't that hard to break one. Cheers, Stuart __________________ Can you imagine drifting along in the sea with your mouth open and a load of f***ing plankton going in? You'd like it, would you? www.westons-cider.co.uk Azerbaijani Association of Technical Divers Publicity Officer and Goat Wrangler
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8th January 2007, 16:55	#4 (permalink)
Ben Field CK+Shearwater Current Rebreather/s: Classic Kiss Other Rebreather/s: Sport Kiss Join Date: Aug 2005 Location: London, England Posts: 1,829	Re: ck display tits up Does it read minus zeros or silly numbers..... or does it read minus but the right numbers? If it reads the right numbers (likely PPO2) but minus... then it could be that the plug is on the sensor the wrong way round, stupid sounding I know but try it. Otherwise check the battery voltage... KISS handsets need good batteries IME, a New battery is not necessarily a good one. Best of Luck, BEN __________________ 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, don't listen to Puppeteers and RTFM!
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8th January 2007, 17:01	#5 (permalink)
diverklondike RBW Member Current Rebreather/s: Inspiration Classic Other CCR Other Rebreather/s: Inspiration Classic Other CCR Join Date: Oct 2005 Location: Delaware, USA Posts: 1,787	Re: ck display tits up is this an old style or new stye display??
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9th January 2007, 06:32	#6 (permalink)
deepnark RBW Member Current Rebreather/s: Inspiration Classic Classic Kiss Other Rebreather/s: Inspiration Classic Sport Kiss Classic Kiss Join Date: Dec 2005 Location: norfolk uk Posts: 182	Re: ck display tits up hi all the batteries are good ,and i have tried different batteries and snsors,the readings i am getting are just numbers ranging from -.0225 to -.0435 and then back around on a loop type effect. its a drivinn me mad i tells ya. cheers ray
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9th January 2007, 09:45	#7 (permalink)
*EBT* Apprentice Luddite Current Rebreather/s: Classic Kiss Other Rebreather/s: Inspiration Classic Join Date: Feb 2005 Location: UK, Brighton Posts: 2,147	Re: ck display tits up With those readings, thats an open connection. Either a broken wire or a buggered connection. __________________ Eagles May Soar, but weasels don't get sucked into jet engines! RBW Terms of service
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9th January 2007, 10:58	#8 (permalink)
Sutty Classic Kiss diver Current Rebreather/s: Classic Kiss Other Rebreather/s: Join Date: Jun 2005 Location: Glossop, Derbyshire, UK Posts: 856	Re: ck display tits up Quote: (Originally Posted by deepnark) hi all the batteries are good ,and i have tried different batteries and snsors,the readings i am getting are just numbers ranging from -.0225 to -.0435 and then back around on a loop type effect. its a drivinn me mad i tells ya. cheers ray Still sounds like moisture somewhere - I've had this "counting" problem which drying sorted. __________________ Never forget that life is a finite resource.
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9th January 2007, 13:51	#9 (permalink)
Ben Field CK+Shearwater Current Rebreather/s: Classic Kiss Other Rebreather/s: Sport Kiss Join Date: Aug 2005 Location: London, England Posts: 1,829	Re: ck display tits up Quote: (Originally Posted by Sutty) Still sounds like moisture somewhere - I've had this "counting" problem which drying sorted. Yeah sorry to say it but Sutty's right on the money. I ended up with new displays following this as it couldn't be "dried" enough seemingly :-( How old are your display cases, early batches of the 3rd gen (clear case type) are very prone to leaking but Jetsam are very helpful on this. __________________ 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, don't listen to Puppeteers and RTFM!
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9th January 2007, 14:14	#10 (permalink)
deepnark RBW Member Current Rebreather/s: Inspiration Classic Classic Kiss Other Rebreather/s: Inspiration Classic Sport Kiss Classic Kiss Join Date: Dec 2005 Location: norfolk uk Posts: 182	Re: ck display tits up cheers i will give it a time drying and see if that helps ,although it didnt really seem damp ,but you never know ........ .watch this space ! cheers Ray
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