Optima wiring harness

S

Sharkjaw

New Member
Preparing for a dive and noticed sensor 2 reading 0.6 in air.
Unplugged sensor 1&3 one by one and Diva HUD alarmed on each of them.
Sensor 2 no alarms at all.
Replaced wiring harness and all good after.
Sensors all fine.

No signs of broken wiring, good fit on connections and regular contact clean

Anyone come across that one before?
 
Keep the old harness for parts. Most of the time there will only be one of the wires that is problematic and you will have plenty of spares that way. Sometimes the connection will be corroded between the wire and the terminal.
 
Well, checked it . Wires for sensor 2 gone, but not corrosion.
Not sure that I want to put any of those back in. Sensors and connections have given me a bit of grief.
Changed from original DR to N@90 sensors and since then no dramas apart from this.
 
To Don's point, I would cut the ends off the #2 and put it in your just in case I have a problem and don't have an extra new harness bag... :)

As far as cell's go, I am a big fan of the N@90 cells also. They are in reality Vandergraphs. JM and others are also relabeling them.
 
diverklondike said:
To Don's point, I would cut the ends off the #2 and put it in your just in case I have a problem and don't have an extra new harness bag... :)

As far as cell's go, I am a big fan of the N@90 cells also. They are in reality Vandergraphs. JM and others are also relabeling them.
Click to expand...

Mark - didn't you convert from a molex harness to coax? And wouldn't that stop the OP's problem?
 
I have not had any real issues with either on the HH CCR. Molex or Coax. I do periodically spray the connector with ProGold proactively. I am also using Vandagraph cells that have proven to be way more reliable in both the molex and coax versions than anything else out there....
 
diverklondike said:
I have not had any real issues with either on the HH CCR. Molex or Coax. I do periodically spray the connector with ProGold proactively. I am also using Vandagraph cells that have proven to be way more reliable in both the molex and coax versions than anything else out there....
Click to expand...

Good to hear( just ordered a HH)
Well, few dives ago I almost went hyperoxic ( got close anyway)
All 3 sensors did exactly the same, a quick spike on O2 injection( manual) and straight down to about 0.9-1.0 ( set point 1.2)
I believe there's a bug somewhere in my unit. Certain that sensors are fine as all 3 reacted the same.
Controllers showing same figures. Wiring harness 10 dives on it.
Might be time to get cell checker!!!!

Pre- checks all good , sensors few month old. Also using Vandagraph and agree with being heaps better.
Using same cleaner with no bad results so far.
 
diverklondike said:
To Don's point, I would cut the ends off the #2 and put it in your just in case I have a problem and don't have an extra new harness bag... :)

As far as cell's go, I am a big fan of the N@90 cells also. They are in reality Vandergraphs. JM and others are also relabeling them.
Click to expand...

If you compare the specs of the JM cells you will notice they are slightly different. The cells may look similar, and both work well but are not exactly the same.
 
Sharkjaw said:
Good to hear( just ordered a HH)
Well, few dives ago I almost went hyperoxic ( got close anyway)
All 3 sensors did exactly the same, a quick spike on O2 injection( manual) and straight down to about 0.9-1.0 ( set point 1.2)
I believe there's a bug somewhere in my unit. Certain that sensors are fine as all 3 reacted the same.
Controllers showing same figures. Wiring harness 10 dives on it.
Might be time to get cell checker!!!!

Pre- checks all good , sensors few month old. Also using Vandagraph and agree with being heaps better.
Using same cleaner with no bad results so far.
Click to expand...

Definitely a good idea to have some type of cell checker... I have a remobulator that works very well with the HH ccr.

There are some pics of my setup on one of the forums. Will look for it...
 
Michael Thornton said:
If you compare the specs of the JM cells you will notice they are slightly different. The cells may look similar, and both work well but are not exactly the same.
Click to expand...

Micheal... Good to know. Can you elaborate on the differences? In general I really like the quick response and higher voltage of all versions of the Vandergraph cells.
 
Michael Thornton said:
If you compare the specs of the JM cells you will notice they are slightly different. The cells may look similar, and both work well but are not exactly the same.
Click to expand...

Michael I would also like to know the difference. Having seen the specs on both cells I did not noticed any difference. Maybe I overlooked it.


Sent from my iPad using Tapatalk HD
 
When we became a dealer for the JM cells we were told they were slightly different. Comparing the spec sheets I can't find any difference so now I am not sure.


Sent from my iPhone using Tapatalk
 
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