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3. party wind transducer for Simrad IS15

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PRCH View Drop Down
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    Posted: 24 July 2011 at 09:07
I think that several of us have experienced problems with the discontinued Simrad IS15 wind transducer. On Ebay I have found this item:

http://cgi.ebay.co.uk/Universal-Wind-Transducer-Garmin-Simrad-Cetrek-/270719089717


Has any of you experience with this unit?
Regards

Peter

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S/Y Schisslaweng, Hanse 312, #212
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Post Options Post Options   Thanks (0) Thanks(0)   Quote PALM Quote  Post ReplyReply Direct Link To This Post Posted: 13 August 2011 at 18:39
Nasamarine.com also has a wind transducer sending
NMEA. Price 120£.
//Petter Almhagen
S/Y Elsanta
Hanse 342 #223
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Johan Hackman Quote  Post ReplyReply Direct Link To This Post Posted: 13 August 2011 at 19:20
I am not sure it would work with a third party transducer. From what I have heard, the IS15 Wind only works with Simrad's own transducer. I think it is worth checking up before making a purchase.

It is an altogether different thing if the system is NMEA2000, like Simrad IS12 and IS20. Then you can use any NMEA2000 wind sensor, but you will run into some calibration problems that I have written about in this thread. The IS15 network is called Roblink which is NMEA0183. It lacks the "plug-and-play"-compatibility.

Johan

Edited by Johan Hackman - 13 August 2011 at 19:22
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Post Options Post Options   Thanks (0) Thanks(0)   Quote PRCH Quote  Post ReplyReply Direct Link To This Post Posted: 13 August 2011 at 21:17
Hi Palm and Johan

Thank you very much for your replies.

The reason for my eager to get the IS15 wind to work is that it it in a system with a IS15 Combi instrument. If I change the IS15 wind with a different system, Simrad or not, it will not be able to "talk" with my IS15 combi since no new wind system will "talk" Roblink.

Any way I most likely will have to accept that and get me a new wind system.

Any suggestions are very welcome.
Regards

Peter

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S/Y Schisslaweng, Hanse 312, #212
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Post Options Post Options   Thanks (0) Thanks(0)   Quote PALM Quote  Post ReplyReply Direct Link To This Post Posted: 04 August 2013 at 23:48
I have bought the nasamarine.com nmea mast head unit ( http://www.nasamarine.com/proddetail.php?prod=31_NMEA_Masthead ) since my IS15 Wind transducer broke.
The IS15 Wind can read nmea if it has SW revision 1.6. The setting must be changed to nmea=listener. If the IS15 Kombi (speed logg) is connected with roblink to the IS15Wind, it show both true wind and direction.
There was only 2 issues with the installation, first to get the IS15 to read nmea, and then to route the cable from the mast foot to the IS15 Wind.
My installation:
The mast head unit was fixed at the mast top and the cable routed to the mast foot. The cable has 3 connections, 12V feed, ground and nmea out.
The 12V feed did I connect to the unused deck lamp supply (orange). It is also possible to use the supply for the saloon front reading lamp.
I used the two roblink cables for nmea+ and ground to get the signal from the mast foot to the E-panel. In the E-panel I connected this end of the roblink cable to the free unused signal cables routed from E-panel to the IS15 Wind, where it was connected to the nmea port.
The trick to make the IS15 Wind to read the nmea signal is to connect the ground/nmea- to the electric ground somewhere between the mast head unit and the IS15 Wind (the ground voltage level seems a bit high on the internal ground in my IS15 Wind instrument).
With this 125£ solution I will continue to use the Simrad IS15 crap until it die, and then never Simrad again.

Edit 2014-10-03.
I have used this combination, nasamarine.com nmea mast head unit together with IS15 for two seasons now. The combination is working!Thumbs Up

One small issue still to be solved.
The calibration of the nasamarine.com nmea mast head unit is done by:
1. keep the wind vane in Zero-direction,
2. connect blue (signal) cable to ground (black),
3. power upp,
4. release the blue cable from ground.

My IS15 has low resistance between nmea + and - during power up => the nasamarine.com nmea mast head unit is recalibrating at every power up. Confused
I have discussed the issue with nasamarine.com and the solution is to put a pull-up resistor between the nmea mast head unit red (+) and blue (signal) cable. The restior shall be at 10kOhm. This will keep the signal high during power up, but shall not be enough to keep the signal high when the IS15 is up and running.
To be tested during summer 2015. Smile


Edited by PALM - 08 October 2014 at 09:58
//Petter Almhagen
S/Y Elsanta
Hanse 342 #223
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Post Options Post Options   Thanks (0) Thanks(0)   Quote PRCH Quote  Post ReplyReply Direct Link To This Post Posted: 06 August 2013 at 19:11
Hi Palm

Thank you very much for your helpful information. I will order a NASA masthead unit and mount it this winter when the mast is vertical Wink

Looking forward to post my experience next spring.

Happy sailing to all of you.
Regards

Peter

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Post Options Post Options   Thanks (0) Thanks(0)   Quote PALM Quote  Post ReplyReply Direct Link To This Post Posted: 06 August 2013 at 21:23
The picture show the metal bracket that I made for fixing the Nasamarine mast Head unit. I used the same holes in the mast as used with Simrad transducer. The black plastic brackets for fixing the mast Head unit to my bracket are enclosed in the package from Nasamarine, even if it is not stated in the specification.




Edited by PALM - 06 August 2013 at 21:25
//Petter Almhagen
S/Y Elsanta
Hanse 342 #223
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mick the boat Quote  Post ReplyReply Direct Link To This Post Posted: 02 January 2014 at 19:17
Hi Palm,
 
 I  have read your message with much interest, I have the same problem the SIMRAD IS15 mast head wind unit broken, I have purchased the NASA NMEA masthead wind vane and I am attempting to      connect to the Simrad IS15 multi instrument tranceiver box .
 
  I have connected  the Nasa 3 wires, the  Black wire  (negative ground to the Simrad black) , the Nasa Red  wire (positive to power ), the Nasa Blue  wire (nmea to the Simrad Red ) to the Red & Black wires of 5 wire  Simrad  cable but  wind the instrument does not function , I am obviously not making the correct connections, do you please have any advice for me  the correct way.
 
           Kind Regards, Mike Hodges. S Y Star Challenger,  Victory 40. 
 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote PALM Quote  Post ReplyReply Direct Link To This Post Posted: 03 January 2014 at 15:30
Mike,
I think you have the same issue with voltage level at the grounding as I had. Make a test by adding an additional grounding cable from the wind tranducer black directly to good grounding (battery minus). I have this grounding permanently from mast foot to the main grounding behind the control panel.
/Petter
//Petter Almhagen
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Post Options Post Options   Thanks (0) Thanks(0)   Quote rodstar_2000 Quote  Post ReplyReply Direct Link To This Post Posted: 07 October 2014 at 22:29
Hi,

I have a Simrad IS15 wind vane and a Simrad IS20 Analog Display for wind data.

The Simrad support team told me that both are incompatibles, but here at the forum some of you wrote that IS15 talks NMEA 0183 (is Roblink NMEA 0183??).

As I bought the IS15 at ebay without cable, I would like to ask you guys, if someone has the pinage/schematic of IS15 cable. I think that it should have power (+ and -) and NMEA out (+TX and -TX). The IS 15 wind vane has a 4 pins male plug .

Does anyone can help?

Thanks a lot!!

rodrigo


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