On Fri, 27 Jul 2007 15:07:44 -0500, "KLC Lewis"
wrote:


"Electricky Dicky" wrote in message
.. .
A shunt is used to measure current as you well know.
The Magic box that looks at the shunt counts in and out then
"guesstimates" based upon a number of parameters set by the installer
that may be right or may be wrong at that point in the banks life. The
final result is therefore ????? However most with amp counters assume
the numbers are gospel!

snippage

--
Richard

Nb "Pound Eater" Parkend G+S
"Governments are like Nappies, they should be changed often."
(For the same reason)

So it really comes down to choosing your choice of "magic boxes" which
"guesstimate"? How is the Smartguage better than the Link 10, if they both
"guesstimate" the state of charge?

Don't ask me, it was Wayne that said that the "Smartgauge" estimated
not me!

--
Richard

Nb "Pound Eater" Parkend G+S
"Governments are like Nappies, they should be changed often."
(For the same reason)

"Electricky Dicky" wrote in message
...
On Fri, 27 Jul 2007 15:07:44 -0500, "KLC Lewis"
wrote:


So it really comes down to choosing your choice of "magic boxes" which
"guesstimate"? How is the Smartguage better than the Link 10, if they both
"guesstimate" the state of charge?

Don't ask me, it was Wayne that said that the "Smartgauge" estimated
not me!

--
Richard

Nb "Pound Eater" Parkend G+S
"Governments are like Nappies, they should be changed often."
(For the same reason)

Sorry, I was thinking you were the one selling the Smartguages. Unless you
are, in which case I still ask the question. They are all magic boxes that
guesstimate, so how does the Smartguage guesstimate better? And if you
aren't the proper one to answer, can the correct person please jump in?

On Fri, 27 Jul 2007 19:37:37 GMT, Lew Hodgett
wrote stuff
and I replied:

snip

I agree largely with you Lew, but I reckon that you are being a bit
_generous_ with the solar panels' capabilities.

Solar:

For an engineering estimate, use a 2ftx4ft,80W panel which translates
into 10W/sq ft.

Derate 50% for dirt, clouds, angle of attack, etc, thus 5W/sq ft.

As a year around average use 12 hours/day, thus 12hours(5W/sq ft))=60
watt-hours/sq ft/day.

60watt-hours/12volts=5amp-hours/sq ft/day.

To generate 250AH of solar you need 250/5=50sq ft or at least 7
2ftx4ft panels.

Human bevaviour: Bestiality with a brain

On Fri, 27 Jul 2007 19:20:54 +0000, Larry wrote:

Maybe this is what we need......(c;
http://www.fleetsource.com/Alternator_p/4900j.htm

Will a 4 cyl 4-154 Perkins turn it and the prop simultaneously, or will we
have to wait for the batteries to come up before coming out of neutral on
the tranny??

It will use 3 to 4 hp under load. That should not be a problem if the
Perkins is running OK and you use dual belts.

That's the right unit assuming you can get a mount fabricated and the
Perkins has dual drive sheaves. Nothing less is going to get that
bank of L-16s charged in a reasonable length of time.

In article om,
Pete C wrote:

LOL!

For checking SG under way a refractometer might be easier, on the
pocket at least! eg:

and the clothes......

Bruce in alaska
--
add a 2 before @

In article ,
Wayne.B wrote:

On Fri, 27 Jul 2007 19:20:54 +0000, Larry wrote:

Maybe this is what we need......(c;
http://www.fleetsource.com/Alternator_p/4900j.htm

Will a 4 cyl 4-154 Perkins turn it and the prop simultaneously, or will we
have to wait for the batteries to come up before coming out of neutral on
the tranny??

It will use 3 to 4 hp under load. That should not be a problem if the
Perkins is running OK and you use dual belts.

That's the right unit assuming you can get a mount fabricated and the
Perkins has dual drive sheaves. Nothing less is going to get that
bank of L-16s charged in a reasonable length of time.

Actually a single GearTooth Belt and GearTooth Sheaves can transfer
up to 8 HP with ease.....

Bruce in alaska
--
add a 2 before @

On Sat, 28 Jul 2007 20:02:33 GMT, Bruce in Alaska
wrote:

Actually a single GearTooth Belt and GearTooth Sheaves can transfer
up to 8 HP with ease.....

Probably so but most of us do not have gear tooth sheaves.

Bruce in Alaska wrote:
In article ,
Wayne.B wrote:


On Fri, 27 Jul 2007 19:20:54 +0000, Larry wrote:


Maybe this is what we need......(c;
http://www.fleetsource.com/Alternator_p/4900j.htm

Will a 4 cyl 4-154 Perkins turn it and the prop simultaneously, or will we
have to wait for the batteries to come up before coming out of neutral on
the tranny??

It will use 3 to 4 hp under load. That should not be a problem if the
Perkins is running OK and you use dual belts.

That's the right unit assuming you can get a mount fabricated and the
Perkins has dual drive sheaves. Nothing less is going to get that
bank of L-16s charged in a reasonable length of time.


Actually a single GearTooth Belt and GearTooth Sheaves can transfer
up to 8 HP with ease.....

Bruce in alaska

You can do 24 HP with an 8 rib micro vee.

But if you have vee belts, it doesn't matter....

--
“TANSTAAFL”

__________________________________________________ __________________________

"A prudent man foresees the difficulties ahead and prepares for them;
The simpleton goes blindly on and suffers the consequences." - Proverbs 22:3
__________________________________________________ __________________________

Wayne.B wrote in
:

reasonable length of time

= 5 hours from 40% down....(c;

Larry

Electricky Dicky wrote in
:

snippage


http://www.factorydirect2you.com/di.html
I always thought it would be great to modify a cell cap to permanently
mount the probe for one of these digital hydrometers into one cell on the
house batteries. No guesstimating here....you can READ the GRAVITY, the
only way to tell the condition of charge in a wetcell battery.

Price has come down a lot....$50!

Even if you couldn't mount it, its use would be much easier than a glass
hydrometer with the batteries buried like they are in most yachts. Lots of
boats, you can't even get the glass hydrometer into the cells, much less
actually read it.

Larry
--
While in Mexico, I didn't have to press 1 for Spanish.
While in Iran, I didn't have to press 1 for Farsi, either.
While in Florida, I had to press 2 for English.
It just isn't fair.