what are the better sensor molex connectors ?

**jmurba** · 1st October 2007, 07:05

Hi all,
again yester day I lost one sensor displays at the end of the dive (I had finished deco).
I opened the sensor holder and shaked a little bit the molex connectors, the missing sensor displayed backe to 0.90 like the others....
what are the best molex connectors for sensors on earth ?
gloden or silver plated pins bla bla I don't know what but the better ....
regards
jean mi

York · 1st October 2007, 07:18

Quote: (Originally Posted by jmurba)

Hi all,
again yester day I lost one sensor displays at the end of the dive (I had finished deco).
I opened the sensor holder and shaked a little bit the molex connectors, the missing sensor displayed backe to 0.90 like the others....
what are the best molex connectors for sensors on earth ?
gloden or silver plated pins bla bla I don't know what but the better ....
regards
jean mi

If you are asking whether you should get gold-contacts, I guess the answer is yes, but I have seen them corrode as well. Try cleaning the contacts carefully.
Can you be a bit more specific regarding the sensors you use? The K1 can also be used with the molex 3-pin, however the sensor pins are slightly too big and bend the molex pins which can destroy them. In this case the problem might not be corrosion but tension.

Joerg

**jmurba** · 1st October 2007, 07:27

Quote: (Originally Posted by York)

If you are asking whether you should get gold-contacts, I guess the answer is yes, but I have seen them corrode as well. Try cleaning the contacts carefully.
Can you be a bit more specific regarding the sensors you use? The K1 can also be used with the molex 3-pin, however the sensor pins are slightly too big and bend the molex pins which can destroy them. In this case the problem might not be corrosion but tension.

Joerg

Hi Joerg

thanks for help,

-As for the gold-contacts I don't know I jst want to know what connectors give the bests results in real life and where I could order them

-I use R-22's teledyne of course

-as the problem origin, I really don't know, it is very difficult to find it out ... this the reason I'd like to know what connectors statisticaly work better then the others.

this the last problems we have with our electronics alog with the bluddy ip 69 connectors rated to 100m and leaking....(lumberg...)

Electricity and whater ....

regards

jean mi

York · 1st October 2007, 07:39

Quote: (Originally Posted by jmurba)

Hi Joerg

thanks for help,

-As for the gold-contacts I don't know I jst want to know what connectors give the bests results in real life and where I could order them

-I use R-22's teledyne of course

-as the problem origin, I really don't know, it is very difficult to find it out ... this the reason I'd like to know what connectors statisticaly work better then the others.

this the last problems we have with our electronics alog with the bluddy ip 69 connectors rated to 100m and leaking....(lumberg...)

Electricity and whater ....

regards

jean mi

If I understand you right, you are dealing with high moisture due to water leaking. In general terms I dare to say that the gold pin connectors would be better, however your sensor-pins will still corrode as they are not gold-plated. So in effect it would almost not matter, you just won't have to replace the gold-pins quite as often.

The molex-part# for the housing could be 22-01-3037. Gold-plated pins for the housing could be 08-55-0102, although these are only partially gold plated. Molex 08-56-0131 should be fully gold-plated. Welcome to Molex

If you ask my advise: solve the problem, not the symptom. Fix the leak. But I suppose you would if it were easy, right?

Joerg

**jmurba** · 1st October 2007, 08:12

Quote: (Originally Posted by York)

If I understand you right, you are dealing with high moisture due to water leaking. In general terms I dare to say that the gold pin connectors would be better, however your sensor-pins will still corrode as they are not gold-plated. So in effect it would almost not matter, you just won't have to replace the gold-pins quite as often.

The molex-part# for the housing could be 22-01-3037. Gold-plated pins for the housing could be 08-55-0102, although these are only partially gold plated. Molex 08-56-0131 should be fully gold-plated. Welcome to Molex

If you ask my advise: solve the problem, not the symptom. Fix the leak. But I suppose you would if it were easy, right?

Joerg

Hi joreg,
I don't have any leak,
of course if I had a leak I would not blame the sensor connector (((-:
regards
jean mi

Drmike · 1st October 2007, 08:18

I have found the jack plug type connectors (available with R22s) to be far far more practical in rbs.

My advice would be, when its time to change sensors, to change the cells to jack plug type, solder jack plugs (available from RS) to your sensor wires then pot the inside of the jackplug housing to make it whole thing water proof.

IMO molex are just not suitable in a moisture rich environment like inside an Rebreather

The most Ive had to do is wipe the jackplugs with a cloth every now and then to remove any scale. They have been flooded several times and everytine I wash down my unit they (the jack plugs) get emersed/soaked (try that with a amolex

) - no issues

Drmike · 1st October 2007, 08:36

Quote: (Originally Posted by York)

your sensor-pins will still corrode as they are not gold-plated.

I thought they were?

York · 1st October 2007, 08:46

Quote: (Originally Posted by Drmike)

I have found the jack plug type connectors (available with R22s) to be far far more practical in rbs.

My advice would be, when its time to change sensors, to change the cells to jack plug type, solder jack plugs (available from RS) to your sensor wires then pot the inside of the jackplug housing to make it whole thing water proof.

IMO molex are just not suitable in a moisture rich environment like inside an Rebreather

The most Ive had to do is wipe the jackplugs with a cloth every now and then to remove any scale. They have been flooded several times and everytine I wash down my unit they (the jack plugs) get emersed/soaked (try that with a amolex

) - no issues

I had been thinking about that - do you have a part number? gold-plated?

Quote: (Originally Posted by Drmike)

I thought they were?

you're right, they are gold plated - dunno what I was thinking

Drmike · 1st October 2007, 08:57

Quote: (Originally Posted by York)

I had been thinking about that - do you have a part number? gold-plated?

they are chrome plated. part no: 449-994, 998

after soldering the wires to the plug (left) I slide over the clear plastic sleeve (middle) then standing it upright fill it up with resin to pot it.

once set i screw on the outer sleeve (right) . Sorry for crap pic

Mdemon · 1st October 2007, 10:13

Or go down the coax route maybe? It's a good connection and a very positive fit too.

1st October 2007, 07:05	#1 (permalink)
jmurba wet bear Current Rebreather/s: Home Build Other Rebreather/s: Home Build Join Date: May 2006 Location: cannes france Posts: 861	what are the better sensor molex connectors ? Hi all, again yester day I lost one sensor displays at the end of the dive (I had finished deco). I opened the sensor holder and shaked a little bit the molex connectors, the missing sensor displayed backe to 0.90 like the others.... what are the best molex connectors for sensors on earth ? gloden or silver plated pins bla bla I don't know what but the better .... regards jean mi __________________ when will I be able to think about something else then spending hours underwater, when will I be normal ? http://web.mac.com/jmurba/Site_2/home.html http://web.mac.com/jmurba/Site_3/home.html
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1st October 2007, 07:18	#2 (permalink)
York probubbly not Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: Mar 2005 Location: Bristol, UK Posts: 118	Re: what are the better sensor molex connectors ? Quote: (Originally Posted by jmurba) Hi all, again yester day I lost one sensor displays at the end of the dive (I had finished deco). I opened the sensor holder and shaked a little bit the molex connectors, the missing sensor displayed backe to 0.90 like the others.... what are the best molex connectors for sensors on earth ? gloden or silver plated pins bla bla I don't know what but the better .... regards jean mi If you are asking whether you should get gold-contacts, I guess the answer is yes, but I have seen them corrode as well. Try cleaning the contacts carefully. Can you be a bit more specific regarding the sensors you use? The K1 can also be used with the molex 3-pin, however the sensor pins are slightly too big and bend the molex pins which can destroy them. In this case the problem might not be corrosion but tension. Joerg
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1st October 2007, 07:27	#3 (permalink)
jmurba wet bear Current Rebreather/s: Home Build Other Rebreather/s: Home Build Join Date: May 2006 Location: cannes france Posts: 861	Re: what are the better sensor molex connectors ? Quote: (Originally Posted by York) If you are asking whether you should get gold-contacts, I guess the answer is yes, but I have seen them corrode as well. Try cleaning the contacts carefully. Can you be a bit more specific regarding the sensors you use? The K1 can also be used with the molex 3-pin, however the sensor pins are slightly too big and bend the molex pins which can destroy them. In this case the problem might not be corrosion but tension. Joerg Hi Joerg thanks for help, -As for the gold-contacts I don't know I jst want to know what connectors give the bests results in real life and where I could order them -I use R-22's teledyne of course -as the problem origin, I really don't know, it is very difficult to find it out ... this the reason I'd like to know what connectors statisticaly work better then the others. this the last problems we have with our electronics alog with the bluddy ip 69 connectors rated to 100m and leaking....(lumberg...) Electricity and whater .... regards jean mi __________________ when will I be able to think about something else then spending hours underwater, when will I be normal ? http://web.mac.com/jmurba/Site_2/home.html http://web.mac.com/jmurba/Site_3/home.html
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1st October 2007, 07:39	#4 (permalink)
York probubbly not Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: Mar 2005 Location: Bristol, UK Posts: 118	Re: what are the better sensor molex connectors ? Quote: (Originally Posted by jmurba) Hi Joerg thanks for help, -As for the gold-contacts I don't know I jst want to know what connectors give the bests results in real life and where I could order them -I use R-22's teledyne of course -as the problem origin, I really don't know, it is very difficult to find it out ... this the reason I'd like to know what connectors statisticaly work better then the others. this the last problems we have with our electronics alog with the bluddy ip 69 connectors rated to 100m and leaking....(lumberg...) Electricity and whater .... regards jean mi If I understand you right, you are dealing with high moisture due to water leaking. In general terms I dare to say that the gold pin connectors would be better, however your sensor-pins will still corrode as they are not gold-plated. So in effect it would almost not matter, you just won't have to replace the gold-pins quite as often. The molex-part# for the housing could be 22-01-3037. Gold-plated pins for the housing could be 08-55-0102, although these are only partially gold plated. Molex 08-56-0131 should be fully gold-plated. Welcome to Molex If you ask my advise: solve the problem, not the symptom. Fix the leak. But I suppose you would if it were easy, right? Joerg Last edited by York : 1st October 2007 at 07:46. Reason: added molex link
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1st October 2007, 08:12	#5 (permalink)
jmurba wet bear Current Rebreather/s: Home Build Other Rebreather/s: Home Build Join Date: May 2006 Location: cannes france Posts: 861	Re: what are the better sensor molex connectors ? Quote: (Originally Posted by York) If I understand you right, you are dealing with high moisture due to water leaking. In general terms I dare to say that the gold pin connectors would be better, however your sensor-pins will still corrode as they are not gold-plated. So in effect it would almost not matter, you just won't have to replace the gold-pins quite as often. The molex-part# for the housing could be 22-01-3037. Gold-plated pins for the housing could be 08-55-0102, although these are only partially gold plated. Molex 08-56-0131 should be fully gold-plated. Welcome to Molex If you ask my advise: solve the problem, not the symptom. Fix the leak. But I suppose you would if it were easy, right? Joerg Hi joreg, I don't have any leak, of course if I had a leak I would not blame the sensor connector (((-: regards jean mi __________________ when will I be able to think about something else then spending hours underwater, when will I be normal ? http://web.mac.com/jmurba/Site_2/home.html http://web.mac.com/jmurba/Site_3/home.html
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1st October 2007, 08:18	#6 (permalink)
Drmike Custom Title Allowed! Current Rebreather/s: MK 15.X Ouroboros Other CCR Home Build Other Rebreather/s: Inspiration Classic Other CCR Home Build Join Date: Feb 2005 Posts: 3,322	Re: what are the better sensor molex connectors ? I have found the jack plug type connectors (available with R22s) to be far far more practical in rbs. My advice would be, when its time to change sensors, to change the cells to jack plug type, solder jack plugs (available from RS) to your sensor wires then pot the inside of the jackplug housing to make it whole thing water proof. IMO molex are just not suitable in a moisture rich environment like inside an Rebreather The most Ive had to do is wipe the jackplugs with a cloth every now and then to remove any scale. They have been flooded several times and everytine I wash down my unit they (the jack plugs) get emersed/soaked (try that with a amolex ) - no issues __________________ Cave diving is a sport Wreck diving is a sport Diving in general is a sport 'Rebreather diving' is not a sport its the delusional obsession with a highly dangerous and often inappropriate piece of equipment Last edited by Drmike : 1st October 2007 at 08:33.
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1st October 2007, 08:36	#7 (permalink)
Drmike Custom Title Allowed! Current Rebreather/s: MK 15.X Ouroboros Other CCR Home Build Other Rebreather/s: Inspiration Classic Other CCR Home Build Join Date: Feb 2005 Posts: 3,322	Re: what are the better sensor molex connectors ? Quote: (Originally Posted by York) your sensor-pins will still corrode as they are not gold-plated. I thought they were? __________________ Cave diving is a sport Wreck diving is a sport Diving in general is a sport 'Rebreather diving' is not a sport its the delusional obsession with a highly dangerous and often inappropriate piece of equipment
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1st October 2007, 08:46	#8 (permalink)
York probubbly not Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: Mar 2005 Location: Bristol, UK Posts: 118	Re: what are the better sensor molex connectors ? Quote: (Originally Posted by Drmike) I have found the jack plug type connectors (available with R22s) to be far far more practical in rbs. My advice would be, when its time to change sensors, to change the cells to jack plug type, solder jack plugs (available from RS) to your sensor wires then pot the inside of the jackplug housing to make it whole thing water proof. IMO molex are just not suitable in a moisture rich environment like inside an Rebreather The most Ive had to do is wipe the jackplugs with a cloth every now and then to remove any scale. They have been flooded several times and everytine I wash down my unit they (the jack plugs) get emersed/soaked (try that with a amolex ) - no issues I had been thinking about that - do you have a part number? gold-plated? Quote: (Originally Posted by Drmike) I thought they were? you're right, they are gold plated - dunno what I was thinking
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1st October 2007, 10:13	#10 (permalink)
Mdemon SiegeEngine II Current Rebreather/s: Inspiration Classic Home Build Other Rebreather/s: Inspiration Classic Home Build Join Date: Feb 2007 Location: SWUK Posts: 1,926	Re: what are the better sensor molex connectors ? Or go down the coax route maybe? It's a good connection and a very positive fit too. __________________ www.southwestmafia.com "small minds talk about people, Average Minds Talk About Events, GREAT MINDS TALK ABOUT IDEAS!" The WRONG Attitude will get you killed. "Once the agenda-monkeys and perfect-worlders have moved on, perhaps we can do some diving?"
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