The sender doesn't have a polarity. It is just a resistance. Is this what
the back of your sender looks like? Which wires do you have attached where?
Josh
On Apr 4, 2015 10:49 PM, "Robert Boyer via CnC-List"
wrote:
> When you connect the sensing wire to ground, the needle goes positive all
>
Excerpt from the following link:
http://www.doityourself.com/stry/how-does-an-analog-voltmeter-work
An analog voltmeter works by passing a current through a coil that is
suspended between two permanent magnets. This coil of wire is known
Okay, I'm grinning. Now we have ammeters, voltmeters, and ohmmeters.
Let's all just have a beer and admit that we don't really understand
anything at all.
I have noticed that when the house bank is low, my WEMA fuel gauge also
reads low. I've always wondered why, and figured that it had so
When you connect the sensing wire to ground, the needle goes positive all the
way as it should do but it does not register the fuel level.
I now believe that one gauge is working correctly because the needle moved
slightly positive when energized--but the tank is completely empty.
The other gau
Josh,
This is certainly not sailing related, but if i remember it correctly, they are
all really ammeters (the current flowing through them creates the magnetic
field that moves the needle).
Marek
Josh Muckley via CnC-List wrote:
All analog meters are just measuring the "voltage drop" across
It's okay Josh.
Wally is a geek, he knows. I think he was just entertaining himself.
Maybe it gets lonely sometimes in Mexico after the sun goes down. :)
Cheers, Russ
east side, Vancouver Island
At 06:13 PM 04/04/2015, you wrote:
All analog meters are just measuring the "voltage dro
All analog meters are just measuring the "voltage drop" across a
resistance. The key is to have the appropriate voltage input +12v. If the
+12v and the sensing line were reversed then the "voltage drop" would be
"negative" driving the needle to the empty peg.
Josh
On Apr 4, 2015 7:08 PM, "Wally
I thought they were Ohm meters. Anyway, I just Googled it to make sure,
and see a ton of pages on testing marine fuel sender resistance.
Wal
you wrote:
I agree with your diagnosis. It's gotta be reversed polarity...of the
sense and gnd. Fundamentally the fuel gages are just voltage meters.
Lots of good information from everyone. Thank you. I've also asked for
advice on Cruisers Forum and they've tossed in a lot of things. I have to
admit I've been given a lot to think about but that's no complaint. I've
also had family here from Queensland so I've been distracted though I've
mana
Furler is sold ... finally!!
For reference, it came apart quite easily with a heat gun, screwdriver (this
model has set screws, not drift pins) and a stout putty knife to get the foil
sections separating.
Peter Fell
Sidney, BC
Cygnet
C&C 27 MkIII
From: Peter Fell
Sent: Sunday, April 27, 2014
Alex,
I love dumb questions. Fire away.
Seriously, happy to answer anything I can. Been doing a ton of research about
this subject (nothing else to do with all the snow).
All the best,
Edd
---
Edd M. Schillay
Starship Enterprise
NCC-1701-B
C&C 37+ | City Island,
Hi Edd,
I love your diagramme and will be lurking on this list to get answers of my
own. Mine is a bit simpler than yours, but I plan to re-wire my AC/DC stuff
after having my electric motor put in and will be re-wiring everything to
replace the old companionway panel with a Nav station panel
As with all gen 3 C&C's , get a surveyor who knows something about balsa cored
hulls and have him go over it carefully.
Good luck
David
Wanderer
C&C 32
From: Jim Watts via CnC-List
Sent: Friday, April 03, 2015 4:41 PM
To: David Lenehan ; 1 CnC List
Subject: Re: Stus-List Introduction and a
13 matches
Mail list logo
