[PSUBS-MAILIST] Penetrator Air Void Question/Concern

[Cliff Redus via Personal_Submersibles]

Rick for the R300:

For the external LED's, I am using two Vero 18 LED array (BXRC-50C4000-F-04).
This is a 5K lumen array that I have enclosed in a small  custom 2.25" OD
1-atm anodized aluminum housing with a SubConn MCBH-3-MP bulkhead
penetrator.

For altitude, I am using the Airmar DST800.  This sensor communicates with
Automation direct PLC via RS-232 using NMEA 0183 sentence structure.  I am
also using this sensor for ambient water temperature and speed.

For Oxygen concentration I am using the  Maxtec MAX-250 O2 sensor in a
custom PCB.

For CO2, I am using a CO2Meter.com K-30 sensor that gives a 0-5VDC analog
output that is proportional to 0-10,000 ppm of CO2.

* Cliff*



On Tue, Jan 31, 2017 at 1:46 PM, Rick Patton via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

> Would love to hear from anyone who is presently using LED's for their
> outside lighting. I am getting ready to fab the housings for my outer
> lights and am tempted to use a bulb and reflector that is used in a divers
> flashlight that has a reflector OD of say 3" to 4",  but have heard a lot
> about LED's in the group.
> Also like to hear what people are using for an altimeter for monotering
> the O2 levels. I already have a gas monotering device that checks for 02
> and Co2 so would I even need an altimeter?
> Thanks
>
> Rick
>
> On Tue, Jan 31, 2017 at 6:37 AM, via Personal_Submersibles <
> personal_submersibles at psubs.org> wrote:
>
>> If there is room for a 1/8" pipe nipple inboard, you could put a small
>> pressure gauge on the panel somewhere. If you get an increase, it would
>> tell you the outer seal leaked. That's the way we did it for the oil-filled
>> space between double shaft seals at Perry. Don't see why it wouldn't work
>> for this application, as well.
>> Vance
>>
>>
>>
>> -----Original Message-----
>> From: Steve McQueen via Personal_Submersibles <
>> personal_submersibles at psubs.org>
>> To: personal_submersibles <personal_submersibles at psubs.org>
>> Sent: Tue, Jan 31, 2017 9:51 am
>> Subject: [PSUBS-MAILIST] Penetrator Air Void Question/Concern
>>
>> All, I am running a multi conductor cable (11-12mm OD) for my 12V stern
>> thruster thru an existing 1/2" pipe nipple in the aft head of my K-250.
>>
>> I am using a Blueglobe gland fitting (BG 220 VA, rated @ 1,160 psig) on
>> the outboard pressure side of the nipple and a Conax gland
>> (PG5-500-A-N,rated @ 800 psig) for the gland fitting inboard.
>>
>> I was originally only going to have interior Conax gland and let the pipe
>> free flood. Then I decided I wanted to have redundancy and keep the pipe
>> interior dry to help prevent corrosion (it is old school (not SS)).
>>
>> My question: Is the air void that will exist between the 2 gland fittings
>> a concern? Think empty pipe with both ends capped. I'm thinking not...
>>
>>
>> Thanks,
>> Steve
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>
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