Larry Bowen
Joined: 09 Jan 2006
Posts: 802
Location: NC, USA
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 Posted: Wed Jun 16, 2010 5:59 pm Post subject: AeroElectric-List: Active Notification of Low Voltage |
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There is a nice one here:
http://www.periheliondesign.com/
[/url]--
Larry Bowen
Larry(at)BowenAero.com
[url=http://BowenAero.com]http://BowenAero.com
On Wed, Jun 16, 2010 at 12:19 PM, Denis Walsh <denis.walsh(at)comcast.net (denis.walsh(at)comcast.net)> wrote:
[quote] Vans' carries one for $80. �Pretty steep but looks elegant.
I have one similar which I got from electric Bob years ago for a lot less, but don't think he is in that business any more.
On Jun 16, 2010, at 10:05 , Charles Brame wrote:
| Quote: |
Bob, et. al.,
I'm one of the guilty ones with an electronic EFIS and no warning light for a low voltage. In a low voltage situation, my EFIS voltmeter does flash, but I have determined that isn't a sufficient warning. Thus I would like to install a low voltage warning light.�To complicate matters: however, I have a generic Ford regulator that does not have a low voltage warning circuit. Is there a simple solution for this situation?�
Charlie Brame
RV-6A �N11CB
San Antonio
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Time: 06:19:27 AM PST US
From: "Robert L. Nuckolls, III" <nuckolls.bob(at)aeroelectric.com (nuckolls.bob(at)aeroelectric.com)>
Subject: Re: AeroElectric-List: Active Notification of Low Voltage
At 05:06 PM 6/14/2010, you wrote:
| Quote: | Many current OBAM aircraft have electronic EFIS and/or EIS systems�
installed in their panels. �Most of these systems have the�
capability to monitor various engine and electrical�
parameters. �Limits can be programmed so that when a parameter is�
outside of the set limits, this is enunciated via audio and/or�
visual notification (a warning light).
Is the use of these EFIS/EIS systems adequate for proper stand alone�
"Active Notification of Low Voltage"? �Or is it recommended that�
additional equipment be employed? �This additional equipment would�
be such as AEC9005, AEC9024 (when available), or other such devices�
on the market.
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���Your choice. The operative word is "active".
���If the nature of the warning provided as a
���feature of a panel mounted accessory is sufficient
���to get your attention within a minute of
���onset of LV, then the design goals have been
���met.
���The B&C LR series regulators are shipped with
���a rather obnoxious yellow warning light assembly
���that is guaranteed to get your attention.
���It's something you can experiment with in
���flight. Shut the alternator off. Judge for
���yourself if the resulting indication is sufficiently
���attention getting.
��Bob . . .�
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_________________
Larry Bowen
RV-8 SOLD,
RV-7QB in progress... |
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