MapisM
Well-Known Member
I have a full Raymarine OEM installation on my 2004 vintage boat (ST60, pathfinder displays).
Old by modern standards, but I have neither the need nor the wish to spend silly amounts for upgrades.
The only thing which I didn't like was the transducers setup, made of:
- a P800/P120 thru-hull for SOG and sea water temperature (connected to an ST60 tridata), plus
- a P79 in-hull connected to a DSM300, and eventually feeding the MFDs.
Now, the first never gave a correct temperature reading, jumping anywhere between 0 and 50+ Celsius, but this never really bothered me.
It's the in-hull transducer that I found not as reliable as the thru-hull sounder I was used to, so I thought to install a thru-hull transducer instead.
I selected a B60, of which I liked the internally tilted element allowing a flush installation in a 20° deadrise hull.
All well and good, I simply detached the P79 from the DSM300, connected the B60, and the sounder now is indeed more stable and accurate.
The only problem is that while the P79 (obviously, being an in-hull transducer) did not read the sea water temperature, the B60 does.
BUT, I still have also the P120 flywheel sensor, which on top of the STW also reads the (wrong) sea water temperature.
And not only the tridata to which the P120 is connected, but also all other Seatalk networked instruments can display that value.
OTOH, the B60 reads the same value (and it does give a correct reading, as opposed to the P120).
Now, for some reason, when both instruments are working, the value which "prevails" and is displayed on all instruments is the wrong one from the P120.
If I detach the tridata to which the P120 is connected, the instruments display the correct sea water temp from the B60, but I obviously lose also the STW from the P120.
Not that it really matters a lot, since I'm cruising in the Med where current is never a relevant factor and SOG is more than enough, as far as speed is concerned,
But it's annoying to lose a valid indication just for sake of avoiding the conflict between its wrong sea water temp reading and the correct one from the new thru-hull transducer.
Hence the question in the title: is there a way to select/prioritize one sea water temp signal, when there are two sent through the Seatalk network?
Alternatively, is there a way to disable only the temp signal from the P120, but maintaining its STW signal?
Thanks in advance for any suggestions!
Old by modern standards, but I have neither the need nor the wish to spend silly amounts for upgrades.
The only thing which I didn't like was the transducers setup, made of:
- a P800/P120 thru-hull for SOG and sea water temperature (connected to an ST60 tridata), plus
- a P79 in-hull connected to a DSM300, and eventually feeding the MFDs.
Now, the first never gave a correct temperature reading, jumping anywhere between 0 and 50+ Celsius, but this never really bothered me.
It's the in-hull transducer that I found not as reliable as the thru-hull sounder I was used to, so I thought to install a thru-hull transducer instead.
I selected a B60, of which I liked the internally tilted element allowing a flush installation in a 20° deadrise hull.
All well and good, I simply detached the P79 from the DSM300, connected the B60, and the sounder now is indeed more stable and accurate.
The only problem is that while the P79 (obviously, being an in-hull transducer) did not read the sea water temperature, the B60 does.
BUT, I still have also the P120 flywheel sensor, which on top of the STW also reads the (wrong) sea water temperature.
And not only the tridata to which the P120 is connected, but also all other Seatalk networked instruments can display that value.
OTOH, the B60 reads the same value (and it does give a correct reading, as opposed to the P120).
Now, for some reason, when both instruments are working, the value which "prevails" and is displayed on all instruments is the wrong one from the P120.
If I detach the tridata to which the P120 is connected, the instruments display the correct sea water temp from the B60, but I obviously lose also the STW from the P120.
Not that it really matters a lot, since I'm cruising in the Med where current is never a relevant factor and SOG is more than enough, as far as speed is concerned,
But it's annoying to lose a valid indication just for sake of avoiding the conflict between its wrong sea water temp reading and the correct one from the new thru-hull transducer.
Hence the question in the title: is there a way to select/prioritize one sea water temp signal, when there are two sent through the Seatalk network?
Alternatively, is there a way to disable only the temp signal from the P120, but maintaining its STW signal?
Thanks in advance for any suggestions!
