Transducer Working? R-25

[McTuggy]

Hi All,

I have a 2009 R25, Garmin 5212 working fine, used but ok Garmin GSD 22, and an Airmar P79 transducer.

I am not getting depth.

My transducer is clicking nicely. I did detach it from the hull to diagnose but I can re-seat in goop like it was from the factory I am assuming. (What goop would I use?)

Any hints? I thought I might replace the P79 but the one I have is clicking fine it seems.

Thanks for any insight.

Chris

 

[BB marine]

There are several ways to test the transducer to confirm it is working before gluing it back in place. I like to use the plastic bag method. Clean the area that you plan on glueing the transducer at. This means sanding it smooth and use a solvent like acetone to remove contaminants grease, oil dirt and sanding dust. Now place the transducer in a gallon zip lock bag, pour water in the bag. Use a tie strap to seal the bag and transducer wire as best you can. Place the bag and transducer on the area that you have cleaned and plan to glue the transducer. Now check the reading. It should be a good depth reading. If it is Glue the transducer to the hull. When gluing the transducer directly to the hull I have my method and many have their methods if it works it is the right method!!. My method is to use West system epoxy. I mix a Golf ball size of west system epoxy using the correct measurement of epoxy and hardener. Once this is mixed I add the filler to the epoxy until you get the right thickness. You want it to be putty. Clean the surface again with alcohol solvent, transducer and hull. Apply a think layer of the putty to the bottom of the transducer. Apply a thinner layer to the hull where the transducer is to be mounted. Have a roll of masking tape ready to use. Glue the transducer down by pushing it down with slight twisting motions to work any air bubbles out. Continue to push down as the epoxy squeezes out around the transducer. Never release the pressure until you feel the transducer is touching the hull and all epoxy that is going to squeeze out has. Now tape the transducer down with the masking tape so it does not slide. Let the epoxy cure. Remove the tape and use should have a good bond between the hull and the transducer. I actually like this better than the cup method. If it is done correctly you will never need to mess with it again.

 

[McTuggy]

Thanks Brian. That is great of you to list that out for me. My 25 is on the trailer right now. Can I still perform the gallon bag test on the hard?

 

[knotflying]

Perhaps Brian will confirm, but I do not think you will get a reading on the trailer.

 

[CruisingElvinRay]

You won’t get a reading on the trailer. Air and water are different. I’ve always disabled the transducers if I’ve got the Garmin gear on while I’m on the trailer (doing a software upgrade, installing new products, transferring routes to the MFD, etc…). They can heat up and malfunction with no heat exchange.


Sent from my iPhone using Tapatalk