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TM150m overheating?

Old 04-08-2015, 07:38 AM
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Default TM150m overheating?

Guys,
I posted this somewhere on the forum so forgive me for double posting. This looks like the right place.
I intend to put a TM150M on a trolling motor but i'm concerned about the possible overheating issue with the transducer being out of the water for many minutes at a time.

So, my question is, Will a 300 watt, baby chirp transducer really over heat to the point of damaging itself?
What are my options if they answer is yes, it will be damaged and I still put it on the trolling motor.

Lastly, the connected unit is a Garmin 840xs

thanks,
Old 04-08-2015, 07:48 AM
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You can turn the sonar off from the MFD
Old 04-08-2015, 03:36 PM
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Blue
Does that shut down the transducer ?
Old 04-08-2015, 06:40 PM
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Originally Posted by brettw View Post
Blue
Does that shut down the transducer ?
stops sounder from banging away
Old 04-08-2015, 07:04 PM
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Ok
That's it
Just got to remember every time
Old 04-08-2015, 07:47 PM
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I have a back ground in building controls etc and while this is different, the concept is similar.... can you set a high temp alarm on the 840xs?

Say You forget to turn the transducer off (which will happen sooner or later) and it's been out of the water for a while. Why not utilize the water temp alarm feature as a makeshift high temp limit via the temp sensor built into the transducer? Say It reads 90 DegF, you set this temp to activate an audible alarm on the Garmin.

Maybe this is a feature the manufacturers could code in, but instead of alarming they simply shut down the power to the transducer to protect it

Shan
Old 04-08-2015, 10:42 PM
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Originally Posted by shansgonefishin View Post

Maybe this is a feature the manufacturers could code in, but instead of alarming they simply shut down the power to the transducer to protect it

Shan
Now that is what I call a good idea.
Old 04-09-2015, 08:46 AM
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Originally Posted by Team Colibri View Post
Now that is what I call a good idea.
Yes it is, Is there a temp alarm setting on the transducer?

Anyone?
Old 04-09-2015, 08:54 AM
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There is a temp sensor in most ducers ment to be in direct contact with water, including TM150M, but the alarm-part would have to be in the MFD.
Old 04-09-2015, 09:15 AM
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Here's another way,
when i pull my old trolling motor out of the water, it starts hunting for a bottom to bounce the signal, it cant find it so the depth reads 500' for example. I can set a deep water alarm if this works the same way on the TM150 since I never fish deeper than 50'

Might be the answer.
Old 04-09-2015, 09:16 AM
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Originally Posted by Team Colibri View Post
There is a temp sensor in most ducers ment to be in direct contact with water, including TM150M, but the alarm-part would have to be in the MFD.

Forgive my ignorance, whats the MFD stand for?

thanks
Old 04-09-2015, 09:20 AM
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Originally Posted by brettw View Post
Forgive my ignorance, whats the MFD stand for?

thanks
Multi-function display

As opposed to a dedicated GPS or fishfinder only unit.
Old 04-09-2015, 09:23 AM
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Originally Posted by Team Colibri View Post
Now that is what I call a good idea.
It's a great idea!
Old 04-09-2015, 09:57 AM
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According to Airmar all CHIRP sounder should reduce the power or stop the pinging if the transducer gets too hot, but regrettably not all manufacturers have implemented this.
Old 04-09-2015, 10:06 AM
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Transducers with XID also report element temperature on the XID lines. The information is three, it's up to the MFD manufacturers to do something with it. I think even the non-CHIRP XID might do this, but not sure. I know all the CHIRP ones do, even the ones not meant to make contact with the water.
Old 04-09-2015, 10:25 AM
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i just stop sonar anytime i move from console to bow or bow to console
Old 04-09-2015, 11:13 AM
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Originally Posted by abbor View Post
According to Airmar all CHIRP sounder should reduce the power or stop the pinging if the transducer gets too hot, but regrettably not all manufacturers have implemented this.
Just about every electrical motor manufactured has a built in thermocouple designed to protect the motor from over heating and burning your house down if it gets too hot, It's a low cost addition that simply breaks power when it exceeds a temperature threshold and re-makes once things have cooled, this has saved many a motor and probably the odd house.

Maybe Airmar could integrate this into their Chirp Transducers so the onus is on them as well as the MFD manufactures to protect us all - at the least on the ones that cost an arm and a leg!

Shan

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