whiteoaks7
Well-Known Member
I read somewhere that it's a bad idea to use the sounder when the boat is dry since the energy is not dissipated so well and leads to heating. Have I got that right?
Use the sounder when out of the water?
- Thread starter whiteoaks7
- Start date
geoffatstanpit
Well-Known Member
The whole thing only takes about a watt so nothing's going to get very hot!
fluffc
Well-Known Member
Strictly this is true, but the amount of heat would be minute and dissipated readily.
Avocet
Well-Known Member
Why would you want to anyway????
As above I'm sure it's fine for short periods (say less than a couple of hours).
Interestingly, mine reads differently out of water - can't remember whether it was double or half but obviously air is different to water!
If you really want to, a lead line (or tape measure) is easier to use out of the water and doesn't give false readings in air!
As above I'm sure it's fine for short periods (say less than a couple of hours).
Interestingly, mine reads differently out of water - can't remember whether it was double or half but obviously air is different to water!
If you really want to, a lead line (or tape measure) is easier to use out of the water and doesn't give false readings in air!
Phoenix of Hamble
Well-Known Member
But does annoy the hell out of the guy below antifouling your hull...!
graham
Well-Known Member
when I have accidently left mine on (NASA) when drying out against a wall or on legs I have noticed that it doesnt get any reading through air but doesnt seem to have done it any harm.
MIKE_MCKIE
Well-Known Member
I always turn mine on when on the scrubbing grid & the tide is on the make. It provides a very useful check on the e/s offset, as well as providing an alarm before the boat floats. (After after drying out, scrubbing off, etc etc I am usually knackered by this time & need to "rest the eyes")
pau1gray
Well-Known Member
Depends on the type of transducer and how the transducer is mounted / designed.
Some piezo electric transducers rely on water / oil pressure in order to stop them rattling inside the transducer housing and possibly cracking making them virtually useless.
Mind you with the modern construction methods these are virtually impossible to get hold off.
My advice is to check the manufacturers manual as this will tell you what they recommend but if in doubt switch it off.
Regards
Paul
Some piezo electric transducers rely on water / oil pressure in order to stop them rattling inside the transducer housing and possibly cracking making them virtually useless.
Mind you with the modern construction methods these are virtually impossible to get hold off.
My advice is to check the manufacturers manual as this will tell you what they recommend but if in doubt switch it off.
Regards
Paul
G
Guest
Guest
Rattling ???
Been around boats reasonable number of years and never seen a transducer that isn't sealed ...
I am honestly curious about the type that needs water or oil pressure to stop it rattling ... I honestly have never come across one like it .... not disbelieving ... really curious .... All the ones I've come across could be mounted in-hull or through ... with or without oil in tube etc.
As to running E/S out of water .... why should it hurt it ? in fact it's pointless as speed of accoustics through air is completely different to water and so is meaningless .... Ok - so maybe it's because you are waiting re-float / drying out ? When I've been waiting tide to depart berth - always put on E/S and then when it read 0.7 - I knew I was just afloat ... similarly drying out ... never harmed my Nasa Stingray LED rotator or the later Digital .... and then my later Echopilot dual ...
Been around boats reasonable number of years and never seen a transducer that isn't sealed ...
I am honestly curious about the type that needs water or oil pressure to stop it rattling ... I honestly have never come across one like it .... not disbelieving ... really curious .... All the ones I've come across could be mounted in-hull or through ... with or without oil in tube etc.
As to running E/S out of water .... why should it hurt it ? in fact it's pointless as speed of accoustics through air is completely different to water and so is meaningless .... Ok - so maybe it's because you are waiting re-float / drying out ? When I've been waiting tide to depart berth - always put on E/S and then when it read 0.7 - I knew I was just afloat ... similarly drying out ... never harmed my Nasa Stingray LED rotator or the later Digital .... and then my later Echopilot dual ...
