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Showing results 1 to 19 of 19
Search took 0.00 seconds. Search: Posts Made By: twistedtree
Forum: Marine Electronics 04-07-2012, 06:11
Replies: 42
Views: 9,510
Posted By twistedtree
Yes, I agree this is a basic venting problem with...

Yes, I agree this is a basic venting problem with the boat. It just has broader consequences with the pressure sensor tank gauges.
Forum: Marine Electronics 03-07-2012, 13:14
Replies: 42
Views: 9,510
Posted By twistedtree
Re: Presure Sensors to Measure Tank Fluid Level ?

Here's a quick follow up on this little project. I've been cruising now for about 6 weeks with the pressure sensor gauges in my two water tanks. They work and correlate within a few gallons with...
Forum: Marine Electronics 15-03-2012, 05:06
Replies: 42
Views: 9,510
Posted By twistedtree
Re: Presure Sensors to Measure Tank Fluid Level ?

I think we live in parallel universes. We both did electronics refits about the same time and ended up building almost identical system. Now N2K tank monitoring, and I'm just finishing up a canvas...
Forum: Marine Electronics 14-03-2012, 14:16
Replies: 42
Views: 9,510
Posted By twistedtree
Re: Presure Sensors to Measure Tank Fluid Level ?

Well, I've come full circle on this subject and am in the process of fitting pressure sensors to all my tanks for fluid level measurement. As a quick recap....

I want my water and fuel tank...
Forum: Marine Electronics 05-02-2012, 14:21
Replies: 42
Views: 9,510
Posted By twistedtree
Re: Presure Sensors to Measure Tank Fluid Level ?

Thanks for the pointer. If the gauges tied into n2k I'd consider them, but as they stand they are out for my needs.

I did find that Garmin has a tank adapter not unlike Maretrons. I might give...
Forum: Marine Electronics 05-02-2012, 06:53
Replies: 42
Views: 9,510
Posted By twistedtree
Re: Presure Sensors to Measure Tank Fluid Level ?

I had to wrap up abruptly on my last post, so here's some more...

The Chetco product has some interesting qualities, but it's very difficult to sort it out. Their website is largely...
Forum: Marine Electronics 05-02-2012, 05:33
Replies: 42
Views: 9,510
Posted By twistedtree
Re: Presure Sensors to Measure Tank Fluid Level ?

I've got an update on this, and am seeking advice from anyone with N2K knowledge.

After much back and forth with Maretron (they were very helpful and engaged) the conclusion was that their TLA100...
Forum: Marine Electronics 26-12-2011, 15:46
Replies: 42
Views: 9,510
Posted By twistedtree
Re: Presure Sensors to Measure Tank Fluid Level ?

I'm back on the case with this little project....

I wasn't too happy about the accuracy of the pressure sensor measurement approach. For my tanks it ends up being +/-6%. So I decided to use the...
Forum: Marine Electronics 27-11-2011, 16:44
Replies: 42
Views: 9,510
Posted By twistedtree
Re: Presure Sensors to Measure Tank Fluid Level ?

Isn't their an issue long term with the air in the tube getting absorbed into the fluid? I know it's an issue with water, but I'm not sure about diesel.
Forum: Marine Electronics 27-11-2011, 16:29
Replies: 42
Views: 9,510
Posted By twistedtree
Re: Presure Sensors to Measure Tank Fluid Level ?

For what it's worth, it was the president of Maretron who I talked to at the Ft Lauderdale show and he suggested I use the pressure sensors as fuel gauges. He showed me how you program them, etc.
Forum: Marine Electronics 27-11-2011, 13:37
Replies: 42
Views: 9,510
Posted By twistedtree
Re: Presure Sensors to Measure Tank Fluid Level?

Maretron has three ways to implement tank gauges.

1) Combined ultrasonic sender and N2K interface. One is required per tank along with an N2K drop. It's not clear that these will work with my...
Forum: Marine Electronics 27-11-2011, 11:51
Replies: 42
Views: 9,510
Posted By twistedtree
Re: Presure Sensors to Measure Tank Fluid Level?

A variety of reasons. It's not definite that I'll go that way, but I'm trying to scope it out completely so I can compare it to the alternative. Here are the attractions:

1) The tanks are...
Forum: Marine Electronics 27-11-2011, 08:40
Replies: 42
Views: 9,510
Posted By twistedtree
Re: Presure Sensors to Measure Tank Fluid Level?

Thanks for the correction. I was following the link that Delmarrey posted without paying attention to the source. My bad.

I'm trying to understand what it would take to comply with that...
Forum: Marine Electronics 27-11-2011, 06:49
Replies: 42
Views: 9,510
Posted By twistedtree
Re: Presure Sensors to Measure Tank Fluid Level?

I'd be cautious with the sensor in or off of the fuel flow path. As your fuel pump circulates the fuel, you will get slight increases and decreases in pressure depending on where you are in the fuel...
Forum: Marine Electronics 27-11-2011, 06:11
Replies: 42
Views: 9,510
Posted By twistedtree
Re: Presure Sensors to Measure Tank Fluid Level?

Oh, sorry. It comes from the full ABYC text.

"Where liquid level indicating devices are attached to the tank, they shall be of heat resistant materials adequately protected from mechanical...
Forum: Marine Electronics 27-11-2011, 04:47
Replies: 42
Views: 9,510
Posted By twistedtree
Re: Presure Sensors to Measure Tank Fluid Level?

Interesting, thanks. When I say "bottom of the tank" that's actually low on the side of the tank. I'd guess they are the requisite 2" above the bottom, but will check.

If I remember correctly,...
Forum: Marine Electronics 26-11-2011, 18:03
Replies: 42
Views: 9,510
Posted By twistedtree
Re: Presure sensors to measure tank fluid level?

Why? Just curious. My fuel tanks already have at least two plugs at the bottom, and of course the fuel line comes off the bottom too. In fact, my entire fuel system (lines, joints, valves,...
Forum: Marine Electronics 26-11-2011, 17:58
Replies: 42
Views: 9,510
Posted By twistedtree
Re: Presure sensors to measure tank fluid level?

Same concept, but without the need to pump air. It just measures the pressure at the bottom of the tank. With that, and knowing the specific gravity of the fluid, it's straight froward to calculate...
Forum: Marine Electronics 26-11-2011, 15:26
Replies: 42
Views: 9,510
Posted By twistedtree
Presure Sensors to Measure Tank Fluid Level ?

Is anyone using pressure sensors as a way to measure the content level in a tank? I was talking to Maretron at the Ft Lauderdale show and they have sensors that screw into a port at the bottom of a...
Showing results 1 to 19 of 19

 
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