Hi:

The Beneteau Oceanis 361 2001  Tridata ST60 suddenly shows 00, and when reset shows Max Speed 00 and even 6.1.

Other readings of SPEED section are 00.

Depth etc OK.

Checked the paddle and was completely clean.

 

My Westerbeke B30 Tachometer is also out - is this related?

 

Can anyone give me some idea>

 

Thanks.

Len Chew

 

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What display is the transducer connected to, the ST60 or the B30?  I have enclosed a test for the speed transducer if the transducer is connected to the ST60.

Testing the Speed Sensor:

Verify that the transducer’s paddle wheel is free of marine growth and rotates freely on its shaft
Power down the instrument
Disconnect the GREEN and SHIELD transducer leads from the instrument display or instrument pod.
Connect a multimeter to the GREEN and SHIELD transducer leads and configure the multimeter to measure continuity or resistance.
Slowly rotate the transducer paddle wheel by hand. Note that as the paddlewheel is rotated, the multimeter should alternate between an open circuit and a closed circuit with each quarter turn. As such one complete revolution of the paddle wheel should open and close the circuit four times.

Should the multimeter respond as indicated above, then the speed sensor element of the transducer would be deemed functional. If not, then the transducer has failed and should be replaced.


Thanks for this info.

After NOT working for 2 weeks, today on a 3hrs' sail the Speed on the ST60 suddenly came on and was GOOD for the rest of the trip.

Can you say why does this happened?

This happened about 6 weeks ago too.

Thanks again.

Len

 


rhino horn - Raymarine, US said:

What display is the transducer connected to, the ST60 or the B30?  I have enclosed a test for the speed transducer if the transducer is connected to the ST60.

Testing the Speed Sensor:

Verify that the transducer’s paddle wheel is free of marine growth and rotates freely on its shaft
Power down the instrument
Disconnect the GREEN and SHIELD transducer leads from the instrument display or instrument pod.
Connect a multimeter to the GREEN and SHIELD transducer leads and configure the multimeter to measure continuity or resistance.
Slowly rotate the transducer paddle wheel by hand. Note that as the paddlewheel is rotated, the multimeter should alternate between an open circuit and a closed circuit with each quarter turn. As such one complete revolution of the paddle wheel should open and close the circuit four times.

Should the multimeter respond as indicated above, then the speed sensor element of the transducer would be deemed functional. If not, then the transducer has failed and should be replaced.

I would think it would be loose connections somewhere in the system, check all connections are secure behind the display.

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