Maretron Monitoring Popularity

Dec 8, 2007
1,139
Dartmouth MA
Boat Info
1997 Sea Ray 400DA
Cat 3116 TA
1994 Sea Ray Laguna CC 250 Tohatsu
Engines
:
It seems the Maretron products are becoming increasingly more popular out there.
I bought my first DSM410 and a pair of TLM100’s for fuel monitoring and I’m hooked. We have a few people here with with an abundance of knowledge and experience with the product that have posted a considerable amount of information. Unfortunately, it is scattered about this forum. It would be nice if we had an official thread dedicated to this.

That said, I want to monitor my EGT, coolant temp, oil psi etc. I have a friend that is using the NOLAND RS11 with his DSM510’s. They are considerably cheaper than the maretron tmp100. The RS11 uses stock sensors and requires you to input a couple temperatures during setup so it can interpolate and graph. Do the TMP100 use stock sensors also and does it also require you to input known temps as a baseline?
 
@Riptide III Maretron is a great company for NMEA 2000 electronics and has the widest support for N2K products, except multi-media. You will find so many uses for the DSM410 and what it supports, it really is a very versatile display more then any other manufacturer has.

Now with regards to the TMP100 and EGT. EGT in general it is it's own entity and does not fall under the engine parameters PGN's (127488/9), it does fall under the extended temperature PGN's. Here is a good description of the 130316 PGN: https://www.nmea.org/Assets/nmea 2000 pgn 130316 corrigenda nmd version 2.100 feb 2015.pdf
The Maretron and the TMP100 support this PGN and they also have there own proprietary one as well. There in lies the rub, a proprietary PGN, that means only Maretron equipment will display this.

Most engine converters do not support this PGN and you need to have a stand alone unit to monitor this. Maretron TMP100, YachtDevices has one relatively inexpensive as does AOS (https://acrossoceansystems.com/index.php/product/egt-k-type-temperature-sensor-nmea2000/). I have read really positive things about the AOS products.

EGT is also not that widely supported on MFD's. Garmin only supports one sensor per engine, leaving all of the V engines out of the loop. Your inline is fine however.

As far as engine converters go the RS11 is more of a science project then a dedicated converter. I say that because of the two point calibrations. Pressure and temperature senders are not linear, so you will always have inaccurate data because you need to extrapolate the curve. This is fine for gas engines and outboards, but not for diesel engines. I am using the Antisense EMU-1 because of it's ease of programming and accuracy. I have tried them all, and I mean all. Here is my EMU-1 experience that has links to the other attempts: http://clubsearay.com/index.php?threads/actisense-emu-1-engine-converter-analog-to-digital.101609/ However the best hardware I have seen is the Chetco G2, pc software limitations limit this device and it's usability.
 
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@Riptide III Maretron is a great company for NMEA 2000 electronics and has the widest support for N2K products, except multi-media. You will find so many uses for the DSM410 and what it supports, it really is a very versatile display more then any other manufacturer has.

Now with regards to the TMP100 and EGT. EGT in general it is it's own entity and does not fall under the engine parameters PGN's (127488/9), it does fall under the extended temperature PGN's. Here is a good description of the 130316 PGN: https://www.nmea.org/Assets/nmea 2000 pgn 130316 corrigenda nmd version 2.100 feb 2015.pdf
The Maretron and the TMP100 support this PGN and they also have there own proprietary one as well. There in lies the rub, a proprietary PGN, that means only Maretron equipment will display this.

Most engine converters do not support this PGN and you need to have a stand alone unit to monitor this. Maretron TMP100, YachtDevices has one relatively inexpensive as does AOS (https://acrossoceansystems.com/index.php/product/egt-k-type-temperature-sensor-nmea2000/). I have read really positive things about the AOS products.

EGT is also not that widely supported on MFD's. Garmin only supports one sensor per engine, leaving all of the V engines out of the loop. Your inline is fine however.

As far as engine converters go the RS11 is more of a science project then a dedicated converter. I say that because of the two point calibrations. Pressure and temperature senders are not linear, so you will always have inaccurate data because you need to extrapolate the curve. This is fine for gas engines and outboards, but not for diesel engines. I am using the Antisense EMU-1 because of it's ease of programming and accuracy. I have tried them all, and I mean all. Here is my EMU-1 experience that has links to the other attempts: http://clubsearay.com/index.php?threads/actisense-emu-1-engine-converter-analog-to-digital.101609/ However the best hardware I have seen is the Chetco G2, pc software limitations limit this device and it's usability.
Pressure is linear temperature is not for pressure transmitters and temperature thermistors. Is Nolan even making the RS anymore?
Go back on my older threads when I had the 400DA on working with the RS11 and doing all of the thermistor integration.
Nolan was going to provide an algorithm for the thermistors but never came through with it. I actually sent them the mathematical equation for the curve and never heard back.
 
I think the best additions I did were to add the TLM100's for fuel level , adding EGT/Boost to the engines and transmission pressure/temperature. I did this with a combination of Maretron and Chetco Digital G2. Adding the Chetco Digital G2 was a fun, but lengthy and frustrating project (but it can be done). If I had to do over (and I might:)), I'd do as much as I could with maretron. Its just easier.

In order to add the EGT/Boost and transmission monitoring, you will need 1 each of the TMP100 temp monitor and FPM100 fluid pressure monitor modules. Add in the Maretron EGT sensors, a couple pressure transducers and a couple ring temp probes, and you would have a pretty simple to install plug and play system. I'd stay with the Maretron stuff all the way.

The hardess part is getting fluid temperatures monitored as they dont have a standard temp probe converter. You have to jump through some hoops for that.
 
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Pressure is linear temperature is not for pressure transmitters and temperature thermistors. Is Nolan even making the RS anymore?
Go back on my older threads when I had the 400DA on working with the RS11 and doing all of the thermistor integration.
Nolan was going to provide an algorithm for the thermistors but never came through with it. I actually sent them the mathematical equation for the curve and never heard back.

I never heard back from them either and I worked with them on a few issues around the same time as you did. And why I call it a science project ...
 
I think the best additions I did were to add the TLM100's for fuel level , adding EGT/Boost to the engines and transmission pressure/temperature. I did this with a combination of Maretron and Chetco Digital G2. Adding the Chetco Digital G2 was a fun, but lengthy and frustrating project (but it can be done). If I had to do over (and I might:)), I'd do as much as I could with maretron. Its just easier.

In order to add the EGT/Boost and transmission monitoring, you will need 1 each of the TMP100 temp monitor and FPM100 fluid pressure monitor modules. Add in the Maretron EGT sensors, a couple pressure transducers and a couple ring temp probes, and you would have a pretty simple to install plug and play system. I'd stay with the Maretron stuff all the way.
Me To.
It is rock solid and stable - there are reasons the big blue water boats use Maretron. I would venture that I have one of the most significant NMEA 2000 networks on a Sea Ray - actually I have three of them. Short of the carnage of a lightening strike in 2019 the equipment has been stable and reliable. Shown also is the Nav and Engine integration into the NMEA 2000 system (engine and OEM boat systems are via Vessel View 7).
MaretronN2KBuilder.jpg
 
Me To.
It is rock solid and stable - there are reasons the big blue water boats use Maretron. I would venture that I have one of the most significant NMEA 2000 networks on a Sea Ray - actually I have three of them. Short of the carnage of a lightening strike in 2019 the equipment has been stable and reliable. Shown also is the Nav and Engine integration into the NMEA 2000 system (engine and OEM boat systems are via Vessel View 7).
View attachment 134525

Me Three ...
All Maretron where possible.
Reel-Nauti-NMEA2000-Schematic-D.jpg
 
I think the best additions I did were to add the TLM100's for fuel level , adding EGT/Boost to the engines and transmission pressure/temperature. I did this with a combination of Maretron and Chetco Digital G2. Adding the Chetco Digital G2 was a fun, but lengthy and frustrating project (but it can be done). If I had to do over (and I might:)), I'd do as much as I could with maretron. Its just easier.

In order to add the EGT/Boost and transmission monitoring, you will need 1 each of the TMP100 temp monitor and FPM100 fluid pressure monitor modules. Add in the Maretron EGT sensors, a couple pressure transducers and a couple ring temp probes, and you would have a pretty simple to install plug and play system. I'd stay with the Maretron stuff all the way.

The hardess part is getting fluid temperatures monitored as they dont have a standard temp probe converter. You have to jump through some hoops for that.

I do have to add that some Maretron devices cost an inordinate amount of money compared to what other co's may charge and why I mentioned AOS.

Temperature tracking is one of those area's. I find it much easier to use N2K runs with a YachtDevices Temp probe then trying to extend a run for a temp sensor like you would have to do with the TMP100. Not saying it's a bad piece of equipment, actually one of the best, just costly for getting temp's when there are more reasonable alternatives.
 
Am I correct in assuming the yacht devices https://www.yachtd.com/products/exhaust_gas.html
Plugs directly into the backbone? In addition, will it be direct plug and play? In other words will garmin displays, and most importantly will my dsm410’s read it without some type of programming beyond setting up favorites screens?
Thank you all for these responses
 
Am I correct in assuming the yacht devices https://www.yachtd.com/products/exhaust_gas.html
Plugs directly into the backbone? In addition, will it be direct plug and play? In other words will garmin displays, and most importantly will my dsm410’s read it without some type of programming beyond setting up favorites screens?
Thank you all for these responses

No and for most of the N2K equipment you MUST program it to be able to use it. At a minimum you need to set up instance numbers. Although Garmin tends to look for "any" for their displays.

With YachtDevices they can be programmed using the installation fields by using either there utility and or Maretrons N2KAnlyzer.

https://www.yachtd.com/news/certified_n2k_sensors.html

The rub here is you need to have a way of talking (programing) the devices and each manufacturer has their own solution and in most cases you must buy there interfacing device to be able to program it.

In the case of Martron, their display(s) can configure the installation descriptions so they CAN program most YachtDevices devices. This is not the case with other manufacturers in that their devices need to be programmed by their own interface.

Some of Maretrons devices must use a N2KAnalyzer to be programed which you need either a USB100 or an IPG100. The IPG100 also allows you use N2Kview on your phone.

http://clubsearay.com/index.php?threads/remote-monitoring.102913/

EDIT: The reason I say no it's not plug and play is you will need more then one device and the 2nd and up devices will need the instance numbers changed. So the first one you plug in will work fine, the 2nd will need it's instance number changed.



.
 
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Great idea for the forum. However it would helpful to us old folks if achronynms {sp/?} were followed by a noun or adjective discribing what xyz 1500 or abc 1000 is. Then we could follow what you smart guys are writing about and learn.
 
Great idea for the forum. However it would helpful to us old folks if achronynms {sp/?} were followed by a noun or adjective discribing what xyz 1500 or abc 1000 is. Then we could follow what you smart guys are writing about and learn.

I understand what you are asking. But my post's are already very long winded, can you imagine what they would be like if I explained every aspect of it? Most would not ever read it and possibly miss out on something that they were looking for. There has to be a certain level of understanding on this subject to take part in it's discussion. And yes there is a steep learning curve. Especially if you are not in the electronics field or industry.

I would suggest using google for most of what is being discussed here. But most of what is in this thread are discussions on Maretron devices. I think what you are referring to as acronyms are actually Maretron device names, like USB100. That is their usb interface device.
 
Am I correct in assuming the yacht devices https://www.yachtd.com/products/exhaust_gas.html
Plugs directly into the backbone? In addition, will it be direct plug and play? In other words will garmin displays, and most importantly will my dsm410’s read it without some type of programming beyond setting up favorites screens?
Thank you all for these responses

Yes..it can be.

upload_2022-9-26_16-31-38.png


One the probe end, CAT exhaust elbows (at least the 3126's) have a 1/8-27 NPT fitting that directly accepts the Maretron thermcouple. The YD version can not be directly installed as its intended to be mounted inside a hollow nut that on the outside is M10, and at 1/4"-20 hard to modify to fit in the smaller hole.

On the downside, Maretron uses PGN 130316 - Temperature Extended Range for transmitting EGT, and some (even very new and expensive cough Raymarine) can not display that.
 
Great idea for the forum. However it would helpful to us old folks if achronynms {sp/?} were followed by a noun or adjective discribing what xyz 1500 or abc 1000 is. Then we could follow what you smart guys are writing about and learn.
Unfortunately, this stuff is like learning a new language, and each manufacturer has its own dialect.

But its not hard, you can start small and get some hands on experience by building a little network and seeing how it works in your boat. The biggest issue for a lot of us is this era of boat (90's through the 2000's) have very old electronics that are not compatible, specifically, the networking is hard to connect up.

Be careful going down the rabbit hole!!!
 
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Yes..it can be.

View attachment 134547

One the probe end, CAT exhaust elbows (at least the 3126's) have a 1/8-27 NPT fitting that directly accepts the Maretron thermcouple. The YD version can not be directly installed as its intended to be mounted inside a hollow nut that on the outside is M10, and at 1/4"-20 hard to modify to fit in the smaller hole.

On the downside, Maretron uses PGN 130316 - Temperature Extended Range for transmitting EGT, and some (even very new and expensive cough Raymarine) can not display that.
This makes the decision easy. I’ll install a TMP100 with two Maretron EGT probes and a temp probe for the engine room.

Am I correct in assuming my simplest and most robust way of displaying transmission and oil pressures would be using the FPM100 with the Maretron pressure transducers?
I do understand this is not the cheapest method, however, I am willing to pay more if it means simpler and less room for error due to programming curves.
Which leads me into the next question. If I use a purchase a yachtdevices unit for pressures and temperatures, I understand I will have to program several temperature’s to establish a curve. Do I have to do the same with the pressures? I’m assuming yes as I believe it utilizes my stock senders.
 
This is about as “simple” as it gets. The only issue with the Maretron pressure transducers is they are 1/4” NPT only. You may need an additional fitting to mate it up to the fittings on the engine/transmission. Pretty sure the pressure port on the transmissions is 1/8” NPT. The transmission transducer might need a snubber.

The other option is to call Maretron and see if you can get the specs for the transducers and buy a third party already in the pipe size you require.
 
The EGT install is that simple. Install the probes, and wire it up. I also have an engine room temp proble installed.

One thing to check (call Maretron) is to make sure that the FPM100 will send the correct PGN. These are technically set up to read pressure in a tank, as a measure of tank level. It’s going to be sending PGN 130314 which is “Actual Pressure”. If your using a DSM410, you can set it up to display that PGN, and rename the field to display it as Transmission Pressure/engine oil pressure.

If your using another display, or trying to display it on a MFD, it might be looking for PGN 127489 and 127493.
 
This makes the decision easy. I’ll install a TMP100 with two Maretron EGT probes and a temp probe for the engine room.

Am I correct in assuming my simplest and most robust way of displaying transmission and oil pressures would be using the FPM100 with the Maretron pressure transducers?
I do understand this is not the cheapest method, however, I am willing to pay more if it means simpler and less room for error due to programming curves.
Which leads me into the next question. If I use a purchase a yachtdevices unit for pressures and temperatures, I understand I will have to program several temperature’s to establish a curve. Do I have to do the same with the pressures? I’m assuming yes as I believe it utilizes my stock senders.

Riptide you need to understand something when it comes to displaying your oil pressure and engine coolant temp and transmission engine parameters. For engines these parameters are published in an N2K PGN, 127488 engine RPM and boost pres., 127489 parameters like temp and oil pressure and 127493 for the transmission parameters. If the engine data is not transmitted in these data packets they will not display correctly on any display. If you want to display engine parameters you must use something like an Actisense EMU-1.

EGT is the only exception to the rule, it is not in any of the engine parameter PGN(s) and must be displayed on it's own on a display that supports it, like the Maretron DSM410. Most MFD's like Garmin and Raymarine don't really support it correctly.

With what your are asking about program curves, the only thing that needs a curve is the engine parameters if you use something that needs them programmed. The EMU-1 is plug and ply if you use the right engine senders and you only have to select the right sender and away you go.

YachtDevices does not have anything that can be used in and engine other then there EGT sender and I do not think it needs to be programmed. EGT is a rough temperature as there isn't many inexpensive probes that can be used to calibrate that.

Maretron does not have anything that can be used for engine parameters, they decided to get out of that market. They only have some converters that get one technology to another, like J1939 to NMEA 2000.
 
I recently talked to Maretron about the TMP100 and adding EGT to my QSB/Smartcraft/Garmin equipped Meridian.
They said, as I believe has been mentioned above, that EGT isn’t supported very well by the TMP100/Garmin combo, but that it is on the list of upgrades to be made. Not sure when that will be.

Maybe the EGT can be read properly by my Vesselview 502 over N2K?

I plan on talking to them again at FLIBS to see if they’ve made any progress on the upgrade. .
 

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