Temp/Speed Transducer replacement

[saopm]

What type of wire connector is on the DST800? Is it a SeaTalkNG, DeviceNet, or other?

 

[SRMark]

It is a 5 pin that requires a NMEA2000 backbone to connect it to the network port on the Garmin.

 

[Jaybeaux]

It is a 5 pin that requires a NMEA2000 backbone to connect it to the network port on the Garmin.

You ran the backbone all the way to the engine room, and then connect the DST800 cable in the engine room?

 

[saopm]

Ok, I have Raymarine SeaTalkNG and already transitioned to NMEA at the helm. I plan to run a NMEA BB to the engine rm. Just wanted to make sure the DST800 didn’t have a SeaTalkNG connector. I’m trying to stay away from Raymarine network cables since they are expensive compared to NMEA universal cables.

 

[SRMark]

You ran the backbone all the way to the engine room, and then connect the DST800 cable in the engine room?

The backbone is under the dash at the helm. I had to get an additional NMEA2000 cable to go from there to the engine room because the cable on the transducer wasn't long enough to go all the way to the helm.

 

[Jaybeaux]

The backbone is under the dash at the helm. I had to get an additional NMEA2000 cable to go from there to the engine room because the cable on the transducer wasn't long enough to go all the way to the helm.

You’ll be happy you did. The hard work is done.

 

[ttmott]

I have a 2004 420 that has a Sea Ray Navigator that I am planing to replace with a Garmin 1243xsv. My current transducer is an airmar for depth and temperature. Does anyone know if this will work with the Garmin?

The Navigator uses NMEA 0183 for the transducer. It is best to update the boat with NMEA 2000 for that Garmin MFD. So, purchase a NMEA 0183 - NMEA 2000 converter to use the existing Xdcr.

 

[Sans Souci]

Has anyone replaced the speed/temp transducer for the tridata ray marine display. I have a 97 express, replaced the old i40 (no direct replacement ), so upgraded to the i50. All worked fine for two seasons, till this past weekend. Depth still functioning correctly, separate transducer , the temp/speed transducer (port side) not working. It appears to be easily replaced by unscrewing the old and replacing it with a new transducer. Having issues with the p/n for the transducer? Any help with the p/n (part number) and replacement procedure will be appreciated. thanks in advance....

Here is an update,
Conatcted Airmar , the correct replacement transducer is ST800-INS Speed and Temp Insert. Purchased same from iMarine (iMarineUSA.com)

 

[SCFoster]

Questions about the DST800 Triducer (actually 810) installation in a 380DA.
Are there any issues with readings at speed (30mph)? I've read that a through hull with a fairing block is preferable due to potential turbulence over the flush mount DST800. Any experience with this?
Have an Axiom+ 12" MFD (non Sonar E70638) that I never installed on a Beneteau sailboat. The DST 810 has a NMEA 2000 plug, so I'm thinking a Raymarine T12217 NMEA2K STng Gateway kit would enable the connection to the MFD.
Thoughts?
Not planning on fishing much, so no real need for fish finding capabilities.

 

[dtfeld]

The housing of mine is not very tall off the surface of the hull, so not sure how to get a fairing block around it. I do not have a fairing block on mine, but I'm sure there is turbulence either from the rough bottom coating/growth in front of it.

The readings from the paddle wheel can be calibrated, but still they are a little erratic compared to the GPS readings on my Raymarine system. Different speeds seem to produce better/worse correlation to the GPS. For me it was more of I wanted everything to work, vs the paddle wheel being accurate.

You can buy a NEMA2000 --> SeaTalkNG converter cable, and just plug them together. The trick is making sure you have the right M/F on both ends.

https://raymarine.custhelp.com/app/...-backbone-to-a-third-party-nmea-2000-backbone

 

[SCFoster]

The housing of mine is not very tall off the surface of the hull, so not sure how to get a fairing block around it. I do not have a fairing block on mine, but I'm sure there is turbulence either from the rough bottom coating/growth in front of it.

The readings from the paddle wheel can be calibrated, but still they are a little erratic compared to the GPS readings on my Raymarine system. Different speeds seem to produce better/worse correlation to the GPS. For me it was more of I wanted everything to work, vs the paddle wheel being accurate.

You can buy a NEMA2000 --> SeaTalkNG converter cable, and just plug them together. The trick is making sure you have the right M/F on both ends.

https://raymarine.custhelp.com/app/...-backbone-to-a-third-party-nmea-2000-backbone

Thanks. At higher speeds, I'm going to look at the GPS anyway.
What's disappointing is I called Raymarine tech support twice. Both times I seemed to know more than the person "helping" me.
The question about the fairing block had to do with using the B744V, which requires a fairing block. Funny part is, both Raymarine techs insisted that's the one I had to use. When I asked how I would connect the B744V to my non-Sonar E70638 Axiom+ MFD, they said... wait for it... "you can't"... WTF? Then they told me to buy a new MFD with sonar.

 

[dtfeld]

Yeah, the fair block for that would be a requirement in my opinion. Any bubbles over the face of the transducer would definiety screw up the readings/produce poor returns.

However, if you have the E70638, you do not have a built in sonar. You need to add a sonar module or upgrade to the E70639 model. Hopefully you just boaught and can return/upgrade?

 

[SCFoster]

Yeah, the fair block for that would be a requirement in my opinion. Any bubbles over the face of the transducer would definiety screw up the readings/produce poor returns.

However, if you have the E70638, you do not have a built in sonar. You need to add a sonar module or upgrade to the E70639 model. Hopefully you just bought and can return/upgrade?

The E70638 is slightly used, so no returns.

Spoke with Airmar technical support; was told I do not want to use the DST800 as I would more than likely lose depth readings as soon as the boat is on plane. The B744V is the recommended unit with a fairing block.
As far as connectivity, the tech recommended that I purchase a Raymarine CP370 Digital Sonar, which I just got off eBay for $354.

Then called TheGPSstore about the B744V. Was glad I called as it turns out not all B744Vs have the same plug ends. Ordered an Item # 644 for $420 which has the correct plug to go directly to the CP370 without the need for an adapter cable.

The CP370 then plugs directly into the back of the Axiom+ E70638 MFD with a Raynet to Raynet cable (GPSstore ID 3306). The item purchased off eBay showed this cable, so hopefully it's included. If not I'll order one.

I highly recommend TheGPSstore.com, they were able to provide answers that Raymarine tech support couldn't. The phone number is 910-575-9544.

@dtfeld thanks for the input.

 

[dtfeld]

Thats a good deal! I'm a fan of slightly used!

 

[SCFoster]

Now I have a dilemma. The prior owner installed a Garmin 1242xsv chartplotter that has sonar. It has a 12 pin connector on the back, which after multiple tech support calls with Airmar and Garmin, will not support a connection to the B744V triducer with speed block, to display speed. There is no pin on the 12 pin connection that takes the speed signal. All of the 3 through hulls were removed. Refitting every single hole under the water line, there's a lot of them.
The option would be to go with a flush mount DST810, paired to a dedicated instrument like a Garmin GMI20 or Raymarine i70s then feed that data to the Garmin 1242xsv. Would then need a GT51M-TH sonar transducer that would connect to the Garmin 1242xsv directly with the 12 pin connector.
So three items to buy (plus cables) total $1637
$550 Garmin GMI20 instrument (P/N 010-01140-00)
$346 DST810 triducer (P/N 010-11051-20)
$741 GT51M-TH sonar transducer (P/N 010-01966-10)

Or,

I have a 'spare' E70638 Raymarine Axiom+ 12" Chartplotter (non-sonar) that I didn't install on the Beneteau sailboat.
Confirmed with Raymarine tech support, with the purchase of the CP370 Sonar module, an A66091 Airmar B744V will connect directly to the CP370 with the 7 pin plug, then the CP370 connects to the Axiom+ Chartplotter with a A80161 10 pin plug end cable. This eliminates the need for the DST810 in the Garmin configuration. Additionally, the triducer has a fairing block, so should give more reliable readings at speed with a 38' boat. Also one less hole in the hull. I do still want a depth/speed display at the helm, so plan on purchasing a Raymarine i70s, although not absolutely needed.
Again 3 items (plus cables) total $1304
$354 Raymarine CP370 Sonar (already purchased)
$420 Airmar B744V A66091 Triducer with fairing block
$530 Raymarine i70s E70327 instrument

Was planning on going with the Garmin setup, until I ran into the brick wall of being unable to get the speed signal from the Airmar B744V triducer. Don't particularly care about the Raymarine vs Garmin debate. Have had good experiences with both. But I do recognize that once one goes down a path, it's best to stick to that brand as much as possible.

Thoughts?

 

[dtfeld]

IMHO...I like having both a DST and fishfinder transducer as they are kind of "specialized".

I like having the DST as the depth reading is very accuate and stable and is my main depth reading instrument. It can be calibrated to give readings tht tell you how much water is under your keel (ie props!) Water temp is also very useful. The speed thru water function, is not that accurate, but I like everything working.

The fishfinder is better at seeing structure and fish, but the depth reading function can be a little different than the DST. I attribute this to the fishfinder being much more powerful and "punching through" soft layers of mud, silt, leaves etc. You can see this on the fishfinder, but the depth usually is based on a hard layer underneath. It also is a little more prone to interferance.

So. If your going down the Raymarine route, you could consider adding the DST810, and skip adding the i70s. You can display the depth/temp data on the Axioms screens, unless you want a dedicated depth guage, which in that case, just use a i50 Depth. The i50 has 2 bezels that can make it look like the either the prior generation a,c,e MFD's or more in line with the current Axiom line.

In todays electronics, these transducers generate data, and that data can be displayed in a lot of different ways/places. You do have to go in and select which source ( transducer) is providing the depth reading in the Axiom. Having options is very nice.

 

[SCFoster]

If your going down the Raymarine route, you could consider adding the DST810, and skip adding the i70s. You can display the depth/temp data on the Axioms screens, unless you want a dedicated depth guage, which in that case, just use a i50 Depth. The i50 has 2 bezels that can make it look like the either the prior generation a,c,e MFD's or more in line with the current Axiom line.

In todays electronics, these transducers generate data, and that data can be displayed in a lot of different ways/places. You do have to go in and select which source ( transducer) is providing the depth reading in the Axiom. Having options is very nice.

Thanks for the input. Does the depth reading drop out or become erratic at speed?
Considered the i50 which goes for $338. For the extra $97 the i70s provides a backup if the Axiom fails and can show AIS targets right on the helm dash. On the 380DA the chartplotter is off to the left by a fair distance.
Based on your suggestion I did order a DST810, again as a backup and compare readings.
Haven't had a powerboat since 2007 (15 years) so not my wheelhouse. Anything you want to know about sailing or aviation instruments, I'm your man

 

[bbwhitejr]

I installed the DST810 about 6 months ago. Never had it drop out nor become erratic and any speed. It is hooked to a Garmin XSV 7616 and an i50 also. The 7616 being the parent unit and the i50 the slave unit. Works extremely well for speed, temp, and depth....

Bennett

 

[SCFoster]

I installed the DST810 about 6 months ago. Never had it drop out nor become erratic and any speed. It is hooked to a Garmin XSV 7616 and an i50 also. The 7616 being the parent unit and the i50 the slave unit. Works extremely well for speed, temp, and depth....

Bennett

Thanks. Speaking with Airmar and Raymarine, they both stated that a fairing block is required for the 380DA to ensure reliable readings. Haven't gotten any feedback from any 380DA owners, so following the OEM's advice. Have to replace the transducer anyway.
Did order the DST 810 and will link that on the network to the i70s. Will do some comparisons next year.

 

[bbwhitejr]

Thanks. Speaking with Airmar and Raymarine, they both stated that a fairing block is required for the 380DA to ensure reliable readings. Haven't gotten any feedback from any 380DA owners, so following the OEM's advice. Have to replace the transducer anyway.
Did order the DST 810 and will link that on the network to the i70s. Will do some comparisons next year.

The DST810 fit right into the housing that the OEM transducer came out of. Less than a 30 second swap out.

Bennett