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n713ml(at)yahoo.com
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 Posted: Wed Nov 15, 2006 7:21 am Post subject: Hall Effect/Ammeter/query |
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Folks,
As others have said, placement of devices to measure health of your electrical system is like decisions on primers! So my goal, rightly or wrongly: One Hall Effect feeding my ACS 2005 eng monitor on my main alt B-lead to read as loadmeter. When I switch to my SD8 backup alt, all wired per Z13-8, I want to keep it very simple and switch to a second sensor reading charge or discharge. The ACS is monitoring volts, of course, and is wired through the endurance bus. I After looking at archives, I still remain unclear as to my questions(s) here: a) where to place this second sensor and which way constitutes "alternator" and "battery" sides in that placement, and b) will it read properly whether or not one has selected "Alternate Ebus Feed".
Thanks in advance,
Len
RV7A nearing completion
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nuckollsr(at)cox.net
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| Posted: Wed Nov 15, 2006 7:55 am Post subject: Hall Effect/Ammeter/query |
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At 07:20 AM 11/15/2006 -0800, you wrote:
| Quote: | Folks,
As others have said, placement of devices to measure health of your
electrical system is like decisions on primers! So my goal, rightly or
wrongly: One Hall Effect feeding my ACS 2005 eng monitor on my main alt
B-lead to read as loadmeter. When I switch to my SD8 backup alt, all wired
per Z13-8, I want to keep it very simple and switch to a second sensor
reading charge or discharge. The ACS is monitoring volts, of course, and
is wired through the endurance bus. I After looking at archives, I still
remain unclear as to my questions(s) here: a) where to place this second
sensor and which way constitutes "alternator" and "battery" sides in that
placement, and b) will it read properly whether or not one has selected
"Alternate Ebus Feed".
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Suggest you fit your system with a low voltage warning
light fed from the e-bus. Run BOTH alternator feed wires
through the same hall-effect sensor. The instrument will
read output from either or both alternators on one sensor.
If you're down to the SD-8, reduce loads on the e-bus until
the loadmeter is at 8A or less . . . or until the lv light
stops flashing.
No selector switches. Simple and consistent interpretation
of ammeter readings.
Bob . . .
---------------------------------------------------------
< What is so wonderful about scientific truth...is that >
< the authority which determines whether there can be >
< debate or not does not reside in some fraternity of >
< scientists; nor is it divine. The authority rests >
< with experiment. >
< --Lawrence M. Krauss >
---------------------------------------------------------
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