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NEMA 2000 for older boat

Old 11-28-2017, 07:54 AM
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Default NEMA 2000 for older boat

Hello a couple of questions.

1986 Egg Harbor, Crusader engines.

I would like to monitor fuel flow/fuel management.

(Also tank monitoring capability for fresh and black tank at some point
separate issue)

Would it make sense to set up a NMEA 2000 network for an older boat?

I keep adding to NEMA 2000 capable displays by just plugging in correct?


My boat came with some older electronics with NMEA 2000 capability,
none are connected, Garmin 740 gpsmap w garmin radar,
Lowrance Elite-7x HDI. I realize they wouldn't be part of this, but if networked than a new transducer could link to them right?
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Old 11-28-2017, 08:10 AM
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your GPSMAP 740 is a bit dated, but will serve to get you fuel flow/economy -
connected via NMEA 2000 to an installed GFS 10 fuel flow sensor

https://buy.garmin.com/en-US/US/p/11561

If you have level sensors in the fresh and black tanks,
you can use the GFL 10 level adapter to convert the signal and see those on the 740

https://buy.garmin.com/en-US/US/p/35608

Here is Garmins all-you-wanted-to know about N2K:

http://static.garmincdn.com/pumac/22...00Products.pdf
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Old 11-28-2017, 08:23 AM
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Thanks,
I don't necessarily want to display everything on the GARMIN, I am more interested in connectivity of sensors with displays, sorry I wasn't clear about that.

If i buy displays that have NMEA2000 then the sensors just plug into that network?
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Old 11-28-2017, 08:24 AM
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This is certainly an upgrade worth doing to an older boat. And easy to do. Garmin's GFS10 has a level sensor built into it as well as GPH. You just need two of them, and a NMEA2000 Starter kit. Let us know if you need help.
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Old 11-28-2017, 08:39 AM
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Originally Posted by yachtjim View Post
This is certainly an upgrade worth doing to an older boat. And easy to do. Garmin's GFS10 has a level sensor built into it as well as GPH. You just need two of them, and a NMEA2000 Starter kit. Let us know if you need help.
I currently have no sensors in my water tanks, so I would be adding them, they’d just need to be NEMA 2000 compatable to work then?

(And to be honest not sure if I trust my fuel sensors in a 30 year old boat)
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Old 11-28-2017, 09:03 AM
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Originally Posted by Brownie289 View Post
I currently have no sensors in my water tanks, so I would be adding them, they’d just need to be NEMA 2000 compatible to work then?
the GFS 10 (for fuel) and the GFL 10 (assignable for fuel or five other liquids) are designed to work with any standard marine level sending unit.
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Old 11-28-2017, 11:59 AM
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FloScan is an option for fuel flow. You can get a NMEA2000 output for their systems to share on modern MFDs as well. Maretron also makes loads of tank sensor(pricey)
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