---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Sun 02/22/15: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 12:38 PM - Re: Failing over voltage module (Robert L. Nuckolls, III) 2. 12:40 PM - Re: Failing over voltage module (Robert L. Nuckolls, III) 3. 10:14 PM - Re: Failing over voltage module (Rob Henderson) ________________________________ Message 1 _____________________________________ Time: 12:38:56 PM PST US From: "Robert L. Nuckolls, III" Subject: RE: AeroElectric-List: Failing over voltage module Rob, I put your OVM on the bench today. It's trip-point had drifted UPWARD about 0.5 volts. I re-calibrated it and did a response test. Its performance is pretty much in the center of design goals. Have you run the system (carefully) without the OVM? Are voltages normal? I"m really mystified about battery-only tripping. There was nothing in the performance or physical inspection that would explain this. I'd like to update your OVM more toward the response curves of the next generation OV modules under development. The original AEC/B&C devices were pretty fast which made them twitchy in some systems. If you can wait another 10 days or so, I'll send it back to you with a slower profile. Bob . . . Thanks I will try to get it out today -Rob -----Original Message----- From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Robert L. Nuckolls, III Sent: Friday, February 13, 2015 10:13 AM Subject: Re: AeroElectric-List: Failing over voltage module --> At 10:18 2015-02-13, you wrote: Bob I purchased 1 of your OVM 2 years ago and have been flying with it for a year I have a Glastar with a Subaru 2.5L and IR 70 Amp alternator using Z19RB as a platform I modified the alt field circuit to use the OVM and installed a relay in the B lead using the Z24 interim The circuit breaker for the alt field started to randomly trip and during troubleshooting I found the OVM was tripping even on battery only operations. Can I send the part back for analysis? Thanks -Rob Absolutely! Please do. It will be repaired/replaced under our lifetime warranty. It's a rare circumstance that I can get the carcass back on a fielded failure to perform. Box 130, Medicine Lodge, KS 67104-0130 Bob . . . Bob . . . ________________________________ Message 2 _____________________________________ Time: 12:40:57 PM PST US From: "Robert L. Nuckolls, III" Subject: RE: AeroElectric-List: Failing over voltage module Rob, If you can wait another 10 days or so, I'll send it back to you with a slower profile. Bob . . . P.S. I would simply replace the one you sent me but yours is an older configuration with the miniature pot . . . and I don't have any newer ones built. If the wait doesn't put you in a bind, the upgraded old unit is the better way to go. Bob . . . ________________________________ Message 3 _____________________________________ Time: 10:14:06 PM PST US Subject: RE: AeroElectric-List: Failing over voltage module From: Rob Henderson Qm9iClRoYW5rcyBmb3IgdGFraW5nIGEgbG9vayBhdCBpdC4KVGhlIGJyZWFrZXIgaGFzIG5vdCB0 cmlwcGVkIHNpbmNlIEkgcmVtb3ZlZCB0aGUgT1YgLCBpdCdzIGJlZW4gYWJvdXQgYW4gaG91ciBv ZiBmbGlnaHQgdGltZSBzaW5jZSByZW1vdmFsLiBQcmV2aW91c2x5IHRoZSBicmVha2VyIHdvdWxk IHRyaXAgYWZ0ZXIgYSBmZXcgbWludXRlcy4KWWVzIEkgY2FuIHdhaXQgZm9yIHRoZSBuZXcgbW9k ZWwuCi1Sb2IKCgpTZW50IGZyb20gbXkgVmVyaXpvbiBXaXJlbGVzcyA0RyBMVEUgc21hcnRwaG9u ZQoKPGRpdj4tLS0tLS0tLSBPcmlnaW5hbCBtZXNzYWdlIC0tLS0tLS0tPC9kaXY+PGRpdj5Gcm9t OiAiUm9iZXJ0IEwuIE51Y2tvbGxzLCBJSUkiIDxudWNrb2xscy5ib2JAYWVyb2VsZWN0cmljLmNv bT4gPC9kaXY+PGRpdj5EYXRlOjAyLzIyLzIwMTUgIDEyOjM5ICAoR01ULTA4OjAwKSA8L2Rpdj48 ZGl2PlRvOiBhZXJvZWxlY3RyaWMtbGlzdEBtYXRyb25pY3MuY29tIDwvZGl2PjxkaXY+U3ViamVj dDogUkU6IEFlcm9FbGVjdHJpYy1MaXN0OiBGYWlsaW5nIG92ZXIgdm9sdGFnZSBtb2R1bGUgPC9k aXY+PGRpdj4KPC9kaXY+LS0+IEFlcm9FbGVjdHJpYy1MaXN0IG1lc3NhZ2UgcG9zdGVkIGJ5OiAi Um9iZXJ0IEwuIE51Y2tvbGxzLCBJSUkiIDxudWNrb2xscy5ib2JAYWVyb2VsZWN0cmljLmNvbT4K ClJvYiwKCgpJZiB5b3UgY2FuIHdhaXQgYW5vdGhlciAxMCBkYXlzIG9yIHNvLCBJJ2xsIHNlbmQg aXQKYmFjayB0byB5b3Ugd2l0aCBhIHNsb3dlciBwcm9maWxlLgoKQm9iIC4gLiAuCgogICAgUC5T LiBJIHdvdWxkIHNpbXBseSByZXBsYWNlIHRoZSBvbmUgeW91IHNlbnQKICAgIG1lIGJ1dCB5b3Vy cyBpcyBhbiBvbGRlciBjb25maWd1cmF0aW9uIHdpdGgKICAgIHRoZSBtaW5pYXR1cmUgcG90IC4g LiAuIGFuZCBJIGRvbid0IGhhdmUgYW55CiAgICBuZXdlciBvbmVzIGJ1aWx0LiBJZiB0aGUgd2Fp dCBkb2Vzbid0IHB1dAogICAgeW91IGluIGEgYmluZCwgdGhlIHVwZ3JhZGVkIG9sZCB1bml0IGlz IHRoZQogICAgYmV0dGVyIHdheSB0byBnby4KCiAgIEJvYiAuIC4gLiAgCgoKXy09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT0KXy09ICAg ICAgICAgIC0gVGhlIEFlcm9FbGVjdHJpYy1MaXN0IEVtYWlsIEZvcnVtIC0KXy09IFVzZSB0aGUg TWF0cm9uaWNzIExpc3QgRmVhdHVyZXMgTmF2aWdhdG9yIHRvIGJyb3dzZQpfLT0gdGhlIG1hbnkg TGlzdCB1dGlsaXRpZXMgc3VjaCBhcyBMaXN0IFVuL1N1YnNjcmlwdGlvbiwKXy09IEFyY2hpdmUg U2VhcmNoICYgRG93bmxvYWQsIDctRGF5IEJyb3dzZSwgQ2hhdCwgRkFRLApfLT0gUGhvdG9zaGFy ZSwgYW5kIG11Y2ggbXVjaCBtb3JlOgpfLT0KXy09ICAgLS0+IGh0dHA6Ly93d3cubWF0cm9uaWNz LmNvbS9OYXZpZ2F0b3I/QWVyb0VsZWN0cmljLUxpc3QKXy09Cl8tPT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09Cl8tPSAgICAgICAgICAg ICAgIC0gTUFUUk9OSUNTIFdFQiBGT1JVTVMgLQpfLT0gU2FtZSBncmVhdCBjb250ZW50IGFsc28g YXZhaWxhYmxlIHZpYSB0aGUgV2ViIEZvcnVtcyEKXy09Cl8tPSAgIC0tPiBodHRwOi8vZm9ydW1z Lm1hdHJvbmljcy5jb20KXy09Cl8tPT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09Cl8tPSAgICAgICAgICAgICAtIExpc3QgQ29udHJpYnV0 aW9uIFdlYiBTaXRlIC0KXy09ICBUaGFuayB5b3UgZm9yIHlvdXIgZ2VuZXJvdXMgc3VwcG9ydCEK Xy09ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgLU1hdHQgRHJhbGxlLCBMaXN0IEFkbWlu LgpfLT0gICAtLT4gaHR0cDovL3d3dy5tYXRyb25pY3MuY29tL2NvbnRyaWJ1dGlvbgpfLT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PQoK Cgo ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message aeroelectric-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/AeroElectric-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/aeroelectric-list Browse Digests http://www.matronics.com/digest/aeroelectric-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.