Marine Electronics Forum

raymarine e120

Old 03-23-2007, 10:48 PM
Senior Member
Thread Starter
Join Date: Feb 2007
Location: Barnegat Light
Posts: 245
Likes: 0
Received 0 Likes on 0 Posts
Default raymarine e120

the digital temp gauge jumps anywhere from .2 degrees to 1.5 degrees. it goes back and forth a few times a minute. does anyone know what might be wrong with my system?

example....if the water temp reads 70.1 it may be at 70.9 or even at 68.5 and it will keep jumping between those numbers. its hard to tell the proper temp and it did this all last season. other than the temp problem my system works great.
Old 03-24-2007, 05:59 AM
Senior MemberCaptains Club MemberPLEDGER
Join Date: Feb 2005
Location: Kent Narrows, MD
Posts: 7,144
Received 774 Likes on 366 Posts
Default Re: raymarine e120

It's Global Warming - Sorry wrong forum

I would:

Check the transducer connections on the DSM & Display

Call RM Tech Support

Try a different transducer

In that order
Old 03-24-2007, 08:12 AM
Senior Member
Join Date: Apr 2006
Location: Tidewater, VA
Posts: 1,166
Likes: 0
Received 0 Likes on 0 Posts
Default Re: raymarine e120

One suggestion - when you check the transducer connection to the DSM, make sure the power is OFF! Making and breaking the connection with the power on can fry your 'ducer. I had a problem with my speed/temp sensor, and we took the following steps:

1. Checked connections
2. Replaced the "Y" cable (Raymarine sent at no charge)
3. Replaced the speed/temp transducer (Raymarine sent at no charge)

After step 3, my system is up and running properly.

Good luck,

His Doghouse Too
Old 03-24-2007, 08:31 AM
Senior Member
Join Date: Jan 2007
Location: Whacksonville, Fl
Posts: 717
Likes: 0
Received 2 Likes on 2 Posts
Default Re: raymarine e120

While you are at it, take a good look at transducer placement. I have seen Bad readings of sea temp come from Xducers that were mounted too close to engines, AC compressors, and other heat sources, as well as ones that read erracticly becuase bilge water was sloshing over them as the boat moved. Depending on location, type of boat, and how the boat is moving, you may also have exhust water flowing past it.

As Marinerjoe notes, you can blow the Xducer by pluging/unpluging while there is power to it, so always remove the power cable from the DSM, and wait 2-3 seconds before removing the Xducer plug. Make sure all connections are Bright&Tight, and make sure that the 'radar nut' - the twist-locking ring isn't missing, and is seated well, and that there is no strain/tension on the cables. Check the full run of the cable, making sure there are no damaged sections, and if there are any splices, remake them.

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright © 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.