---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Sun 05/04/03: 11 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 07:21 AM - Re: Oil press warning trouble. (Robert L. Nuckolls, III) 2. 10:38 AM - 1/4 amp fuse ? (Gilles.Thesee) 3. 11:05 AM - Re: 1/4 amp fuse ? (Billie Lamb) 4. 02:51 PM - Military-style Ground Power Plug (William Bernard) 5. 04:23 PM - Re: 1/4 amp fuse ? (Robert L. Nuckolls, III) 6. 04:31 PM - Re: Military-style Ground Power Plug (Robert L. Nuckolls, III) 7. 07:01 PM - LEDs (Gerald Giddens) 8. 07:42 PM - Re: LEDs (Denis Walsh) 9. 07:54 PM - Re: IEEE guide (Jeffrey) 10. 09:23 PM - Re: IEEE guide (Robert L. Nuckolls, III) 11. 09:42 PM - Re: LEDs (Robert L. Nuckolls, III) ________________________________ Message 1 _____________________________________ Time: 07:21:09 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Oil press warning trouble. --> AeroElectric-List message posted by: "Robert L. Nuckolls, III" At 05:40 PM 5/3/2003 -0500, you wrote: >--> AeroElectric-List message posted by: "Sam Hoskins" > > >Bob, did I do something wrong, or did I get a bad oil pressure switch? > >I wired my Hobbs and low oil press warning circuit exactly (I think) to your >drawing labeled; HOURMETER/OIL P WARN. > >With the master on, there is no warning indicator. > >My voltmeter says there is 12.5 V on the oil press switch terminal "S" and >about 11.5V on terminal "I". > >I touched a temporary ground wire to terminal "S" and the light came on. > >Verdict? > >Does the switch need to operate a few times to "loosen up". It has never >had oil pressure applied to it. > >Thanks. > >Sam Hoskins >Quickie Q-200 Maybe . . . I've had one or two switches returned over the years that would not operate when oil pressure was applied but never any that failed to show continuity with no pressure on it. Can you cycle the switch with (shop air will do) and watch the terminals with an ohmmeter? B&C would be glad to replace the switch if it's being hard to get along with. Bob . . . ________________________________ Message 2 _____________________________________ Time: 10:38:28 AM PST US From: "Gilles.Thesee" Subject: AeroElectric-List: 1/4 amp fuse ? --> AeroElectric-List message posted by: "Gilles.Thesee" Hi Bob and all, The instructions for my UMA-Rotax tachometer call for a '1/4 amp inline fuse' between the engine pickup and the instrument. ATC fuses start at 1 amp. What would you suggest to satisfy this requirement ? Do I have to resort to those glass cartridges ? Thanks, Gilles ________________________________ Message 3 _____________________________________ Time: 11:05:45 AM PST US From: "Billie Lamb" Subject: Re: AeroElectric-List: 1/4 amp fuse ? --> AeroElectric-List message posted by: "Billie Lamb" I had the same problem with my egt/cht unit so I just put a 1 amp fuse at the main bus to protect the wire and left the 1/4 amp glass fuse holder inline. Ugly but don't know how better to do it. Bill Lamb ----- Original Message ----- From: "Gilles.Thesee" Subject: AeroElectric-List: 1/4 amp fuse ? > --> AeroElectric-List message posted by: "Gilles.Thesee" > > Hi Bob and all, > > The instructions for my UMA-Rotax tachometer call for a '1/4 amp inline > fuse' between the engine pickup and the instrument. > ATC fuses start at 1 amp. What would you suggest to satisfy this requirement > ? Do I have to resort to those glass cartridges ? > > Thanks, > > Gilles > > ________________________________ Message 4 _____________________________________ Time: 02:51:43 PM PST US From: "William Bernard" Subject: AeroElectric-List: Military-style Ground Power Plug --> AeroElectric-List message posted by: "William Bernard" I'm installing the military style, three pin ground power plug. I'm using Fighre 4 from Bob's article on ground power plugs as a guide. My question centers around the contactor. I have one with three terminals, two large ones and a single small one. It appears externally similar to the S701-1 contactor otherwise. 1) Do I install a diode from the small terminal to the large terminal on the contactor that will connect to the large center pin of the plug? 2) Will the red wire of the OVM-14 module go to this same terminal? 3) I assume that the black wire of the OVM_14 will go to the small terminal. Correct? 4) The large terminal marked "BAT" will connect to the battery contactor and the unmarked large terminal will connect to the center pin of the plug. Right?? Thanks for the help. Bill ________________________________ Message 5 _____________________________________ Time: 04:23:51 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: 1/4 amp fuse ? --> AeroElectric-List message posted by: "Robert L. Nuckolls, III" At 02:05 PM 5/4/2003 -0400, you wrote: >--> AeroElectric-List message posted by: "Billie Lamb" > >I had the same problem with my egt/cht unit so I just put a 1 amp fuse at >the main bus to protect the wire and left the 1/4 amp glass fuse holder >inline. Ugly but don't know how better to do it. > >Bill Lamb That's about all you can do . . . whoever built that requirement into their design should be tied up with their soldering iron cord and whopped about the head and shoulders with their slide rule. There is NO excuse to make a customer comply with this kind of silliness . . . Bob . . . ________________________________ Message 6 _____________________________________ Time: 04:31:43 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Military-style Ground Power Plug --> AeroElectric-List message posted by: "Robert L. Nuckolls, III" At 04:52 PM 5/4/2003 -0500, you wrote: >--> AeroElectric-List message posted by: "William Bernard" > > >I'm installing the military style, three pin ground power plug. I'm using >Fighre 4 from Bob's article on ground power plugs as a guide. My question >centers around the contactor. I have one with three terminals, two large >ones and a single small one. It appears externally similar to the S701-1 >contactor otherwise. > >1) Do I install a diode from the small terminal to the large terminal on >the contactor that will connect to the large center pin of the plug? > >2) Will the red wire of the OVM-14 module go to this same terminal? > >3) I assume that the black wire of the OVM_14 will go to the small >terminal. Correct? > >4) The large terminal marked "BAT" will connect to the battery contactor >and the unmarked large terminal will connect to the center pin of the >plug. Right?? > >Thanks for the help. > >Bill No, a 3-terminal contactor cannot take advantage of the small, sequenced energizing/de-energizing pin in the connector. You need a 4-terminal device so that you have access to both ends of the contactor coil. This is why we stock the 4-terminal device. It can substitute for a 3-terminal contactor as supplied with jumper . . . but will serve in the unique situations requiring 4-terminals by removing the jumper. Bob . . . ________________________________ Message 7 _____________________________________ Time: 07:01:26 PM PST US Subject: AeroElectric-List: LEDs From: Gerald Giddens --> AeroElectric-List message posted by: Gerald Giddens I am looking for the brightest LED annunciator lights that would be viewable in direct sun light. If these devices are not available for direct sunlight, I would like the next best option. A 45 degree viewing angle would be preferred but could accommodate smaller angle as necessary. Hopefully several colors would be available. Source would be 14 Volt and dimmable as dictated by ambient light. Any help would be appreciated Jerry ________________________________ Message 8 _____________________________________ Time: 07:42:10 PM PST US Subject: Re: AeroElectric-List: LEDs From: Denis Walsh --> AeroElectric-List message posted by: Denis Walsh > --> AeroElectric-List message posted by: Gerald Giddens > > > I am looking for the brightest LED annunciator lights that would be viewable > in direct sun light. If these devices are not available for direct > sunlight, I would like the next best option. A 45 degree viewing angle > would be preferred but could accommodate smaller angle as necessary. > > Hopefully several colors would be available. Source would be 14 Volt and > dimmable as dictated by ambient light. > > Any help would be appreciated > > Jerry > > I don=B9t know squat about LEDs but can vouch that the one supplied by lectric bob in his LVWM is one very bright light, which will get your attention in the brightest sunlight. I think its flashing helps ? Denis ________________________________ Message 9 _____________________________________ Time: 07:54:43 PM PST US From: "Jeffrey" Subject: Re: AeroElectric-List: IEEE guide --> AeroElectric-List message posted by: "Jeffrey" > That's my server. I don't think we have any limit on it. > > Bob . . . > > Its probably his email server that is stopping him from sending out a large file. :( Jeff (RV-8 Wings) ________________________________ Message 10 ____________________________________ Time: 09:23:44 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: IEEE guide --> AeroElectric-List message posted by: "Robert L. Nuckolls, III" At 07:54 PM 5/4/2003 -0700, you wrote: >--> AeroElectric-List message posted by: "Jeffrey" > > > > That's my server. I don't think we have any limit on it. > > > > Bob . . . > > > > > > >Its probably his email server that is stopping him from sending out a large >file. :( > >Jeff No, he got a rejection notice from my cox account. He resent it to my website server and I got the whole document okay. Haven't had time to look it over yet . . . it 114 pages long. Bob . . . ________________________________ Message 11 ____________________________________ Time: 09:42:05 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: LEDs --> AeroElectric-List message posted by: "Robert L. Nuckolls, III" At 07:00 PM 5/4/2003 -0700, you wrote: >--> AeroElectric-List message posted by: Gerald Giddens > > >I am looking for the brightest LED annunciator lights that would be viewable >in direct sun light. If these devices are not available for direct >sunlight, I would like the next best option. A 45 degree viewing angle >would be preferred but could accommodate smaller angle as necessary. > >Hopefully several colors would be available. Source would be 14 Volt and >dimmable as dictated by ambient light. > >Any help would be appreciated See http://www.flamecorp.com/pdf_files/aml_1.pdf page 44 shows some LED custom annunciators. Bob . . .