Is it possible to diy test an NMEA 2000 wind transducer?

[fredrussell]

My Garmin wired transducer is refusing to play nicely. No output at all and doesn’t show up on N2K network screen. Any tests I can do with a multimeter with transducer removed?

 

[jamie N]

Is it this one? Of course, the 1st thing is to check the power supply to it. If the transducer end of the instrument is open, then to check the continuity and isolation of the cabling, and that the power reaches the instrument.
I don't know the piece of kit, so this is somewhat a generic fault finding route.
Good luck.
Edit: I see that this PDF indicates "Nexus", but is described a "Garmin" also. <<.....ttps://static.garmin.com/pumac/wind-transducer......>>

 

[wonkywinch]

There are a couple of simple tests you can do with a multimeter with it still connected to the NMEA.

Firstly, with the system powered up, is there a 12-13v supply across the red/black leads at the device?

With the power off, measure the resistance across the two NMEA data wires. You should see 60 ohms which is the product of two 120 ohm terminators in parallel at each end of the bus.

That's about all you can do without specialist equipment.

 

[fredrussell]

Thanks guys - I’ll have a look at the weekend. It’s a Garmin GWS 10 transducer.

 

[neilf39]

With mine it became intermittent and was due to damp getting in to the connector at the top of the mast. Dried and used a bit of silicone grease and been fine for the last 5 years.

 

[fredrussell]

With mine it became intermittent and was due to damp getting in to the connector at the top of the mast. Dried and used a bit of silicone grease and been fine for the last 5 years.

That gives me hope, cheers - mine became intermittent before ceasing all together.