---------------------------------------------------------- RV-List Digest Archive --- Total Messages Posted Wed 06/16/10: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 09:07 AM - Re: AeroElectric-List: Active Notification of Low Voltage (Charles Brame) 2. 09:35 AM - Re: Re: AeroElectric-List: Active Notification of Low Voltage (Denis Walsh) 3. 06:59 PM - Re: Re: AeroElectric-List: Active Notification of Low Voltage (Larry Bowen) ________________________________ Message 1 _____________________________________ Time: 09:07:05 AM PST US From: Charles Brame Subject: RV-List: Re: AeroElectric-List: Active Notification of Low Voltage 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 ---------------------------------------------------------- Time: 06:19:27 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Active Notification of Low Voltage At 05:06 PM 6/14/2010, you wrote: > 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. 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 . . . ________________________________ Message 2 _____________________________________ Time: 09:35:48 AM PST US From: Denis Walsh Subject: Re: RV-List: Re: AeroElectric-List: Active Notification of Low Voltage 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: > 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 > > ---------------------------------------------------------- > > > Time: 06:19:27 AM PST US > From: "Robert L. Nuckolls, III" > Subject: Re: AeroElectric-List: Active Notification of Low Voltage > > At 05:06 PM 6/14/2010, you wrote: >> 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. > > 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 . . . > > ________________________________ Message 3 _____________________________________ Time: 06:59:39 PM PST US Subject: Re: RV-List: Re: AeroElectric-List: Active Notification of Low Voltage From: Larry Bowen There is a nice one here: http://www.periheliondesign.com/ -- Larry Bowen Larry@BowenAero.com http://BowenAero.com On Wed, Jun 16, 2010 at 12:19 PM, Denis Walsh wrote: > 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: > > 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 > > ---------------------------------------------------------- > > > Time: 06:19:27 AM PST US > From: "Robert L. Nuckolls, III" > Subject: Re: AeroElectric-List: Active Notification of Low Voltage > > At 05:06 PM 6/14/2010, you wrote: > > 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. > > > 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 . . . > > * > > href="http://www.matronics.com/Navigator?RV-List">http://www.matronics.com/Navigator?RV-List > href="http://forums.matronics.com">http://forums.matronics.com > href="http://www.matronics.com/contribution">http://www.matronics.com/contribution > * > > > * > > * > > ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message rv-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/RV-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/rv-list Browse Digests http://www.matronics.com/digest/rv-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.