---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Thu 01/04/18: 9 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:41 AM - Simple temperature controlled switch (Carlos Trigo) 2. 07:48 AM - Re: Tech Edge "MODA" Fuel Level Probe (addendum) (Robert L. Nuckolls, III) 3. 07:58 AM - Re: Simple temperature controlled switch (Robert L. Nuckolls, III) 4. 10:04 AM - Re: Simple temperature controlled switch (Carlos Trigo) 5. 10:31 AM - Re: EFIS/EMS Brownout/Reboot: =?ISO-8859-1?Q?=9CVoltage?= Slump =?ISO-8859-1?Q?Eliminator=9D? (user9253) 6. 12:05 PM - Re: EFIS/EMS Brownout/Reboot: =?ISO-8859-1?Q?=9CVoltage?= Slump =?ISO-8859-1?Q?Eliminator=9D? (Eric Page) 7. 12:21 PM - =?utf-8?B?4pyIUmU6IEFpcmxpbmVzIEZvciBBbWVyaWNh? (Gautier Riou) 8. 03:38 PM - Re: Testing Battery Capacity... (Robert L. Nuckolls, III) 9. 07:55 PM - Re: Testing Battery Capacity... (Robert L. Nuckolls, III) ________________________________ Message 1 _____________________________________ Time: 05:41:21 AM PST US From: "Carlos Trigo" Subject: AeroElectric-List: Simple temperature controlled switch Hi there Speaking of temperature control, can someone please point me out to a simple & cheap temperature controlled switch? The idea is just to turn on and off a pair of cooling fans I have in the dashboard, depending on the air temperature behind the avionics. Thanks Carlos De: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] Em nome de Robert L. Nuckolls, III Enviada: Wednesday, January 3, 2018 5:38 PM Para: aeroelectric-list@matronics.com Assunto: Re: AeroElectric-List: Re: Simplest way for a go/no-go 2-Stroke Engine Temperature Ind Another option uses the Analog Devices thermocouple conditioners in a on-off switching mode. https://goo.gl/7ufeaL Here's a simplified schematic . . . Instead of driving a heater control relay, one could drive an LED indicator light directly from the signal conditioner's output . . . This would let you connect directly to the cylinder head with appropriate thermocouple material. Bob . . . ________________________________ Message 2 _____________________________________ Time: 07:48:37 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Tech Edge "MODA" Fuel Level Probe (addendum) At 09:18 PM 1/3/2018, you wrote: >Interesting device. I wonder though whether a metal tank's contents >can be measured as effectively by this device when mounted externally? No . . . plastic only. You need to add the accessory probe through the wall of a metal tank. Bob . . . ________________________________ Message 3 _____________________________________ Time: 07:58:37 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Simple temperature controlled switch At 07:37 AM 1/4/2018, you wrote: >From: "Carlos Trigo" >To: >Subject: AeroElectric-List: Simple temperature controlled switch > >Hi there > >Speaking of temperature control, can someone please point me out to >a simple & cheap temperature controlled switch? >The idea is just to turn on and off a pair of cooling fans I have in >the dashboard, depending on the air temperature behind the avionics. > >Thanks >Carlos There are many options for thermo-mechanical switches (thermostats) like these on eBay. https://goo.gl/5XP2ed Then, for just a few dollars more, there are adjustable, thermostats that can be set up for either close on rise, or close on fall. Further, they can be tweaked for the operating set point. https://goo.gl/mfmzo7 Bob . . . ________________________________ Message 4 _____________________________________ Time: 10:04:50 AM PST US From: Carlos Trigo Subject: Re: AeroElectric-List: Simple temperature controlled switch Thanks Bob Exactly what I need. (With the profusion of things on sale on eBay and the such, it is not easy t o find the most appropriate) Cheers Carlos Enviado do meu iPhone No dia 04/01/2018, =C3-s 15:58, Robert L. Nuckolls, III escreveu: > At 07:37 AM 1/4/2018, you wrote: >> From: "Carlos Trigo" >> To: >> Subject: AeroElectric-List: Simple temperature controlled switch >> >> Hi there >> >> Speaking of temperature control, can someone please point me out to a sim ple & cheap temperature controlled switch? >> The idea is just to turn on and off a pair of cooling fans I have in the d ashboard, depending on the air temperature behind the avionics. >> >> Thanks >> Carlos > > There are many options for thermo-mechanical switches > (thermostats) like these on eBay. > > https://goo.gl/5XP2ed > > Then, for just a few dollars more, there are adjustable, > thermostats that can be set up for either close on rise, > or close on fall. Further, they can be tweaked for the > operating set point. > > https://goo.gl/mfmzo7 > > > > > > Bob . . . ________________________________ Message 5 _____________________________________ Time: 10:31:52 AM PST US Subject: AeroElectric-List: Re: EFIS/EMS Brownout/Reboot: =?ISO-8859-1?Q?=9CVoltage?= Slump =?ISO-8859-1?Q?Eliminator=9D? From: "user9253" I have received the new and improved deslumpifier from Eric Page. I am impressed with the quality of construction. It looks like it was professionally made in a factory. Eric must do this kind of work for a living. Large parts have been glued (E6000 ?) to the circuit board to prevent damage from vibration. He even included one extra mounting screw in case I loose one. And there is one extra female flag type faston connector just in case I ruin one. It is too cold, 5 F or -15 C, to work on the plane. So I conducted this unscientific test: Input voltage to Deslumpifier: 11.62 Output voltage: 11.37 Load: Incandescent lamp part number 7219 draws 58 milliamp Applied power, then disconnected input to Deslumpifier. Lamp immediately dimmed slightly. Output voltage dropped to 10 volts within 2 seconds. After one full minute, voltage had dropped to 5.8, lamp filament glowed dimly. After two minutes, voltage had dropped to 3.3, lamp glowed very dimly. Conclusion: The Deslumpifier has lots of capacitance. :) -------- Joe Gores Read this topic online here: http://forums.matronics.com/viewtopic.php?p=477076#477076 ________________________________ Message 6 _____________________________________ Time: 12:05:12 PM PST US Subject: AeroElectric-List: Re: EFIS/EMS Brownout/Reboot: =?ISO-8859-1?Q?=9CVoltage?= Slump =?ISO-8859-1?Q?Eliminator=9D? From: "Eric Page" Thanks, Joe, youre very kind. Im just a hobbyist, not a pro. The glue is Bobs favorite, Shoe Goo, as it was taking an absurd length of time for an order of E6000 to arrive. Probably a better choice anyway, as it comes from the tube quite a bit thicker than E6000. The dimming you observed upon disconnecting power is because output from the capacitor bank passes through an additional diode, creating an immediate small voltage drop when the input slumps. Im glad to hear the device is working. I mailed one to Bob as well, and hes planning to do some instrumented tests when he has a chance; Im sure hell post the results here in due course. Hopefully it will live up to the hype! Eric Read this topic online here: http://forums.matronics.com/viewtopic.php?p=477079#477079 ________________________________ Message 7 _____________________________________ Time: 12:21:51 PM PST US From: "Gautier Riou" Subject: AeroElectric-List: =?utf-8?B?4pyIUmU6IEFpcmxpbmVzIEZvciBBbWVyaWNh? 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Call to Us and Get Discount Now 888-369-2751. (24/7 Support. ) ________________________________ Message 8 _____________________________________ Time: 03:38:34 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Testing Battery Capacity... At 04:12 PM 1/1/2018, you wrote: >Greetings, > >I've built up the capacity tester documented by >Bob N. in:=C2 >http://www.aeroelectric.c om/articles/battest.pdf >and thought folks might want to see what it >looks like in the flesh.=C2 I've attached a >picture but let me know if it fails to show >up.=C2 Since I only get the digest version of the >postings, I won't get it (I never see any >attachments).=C2 If anyone else who gets the >digest want a copy, just email me direct with >the request and I'll send the pic back in my reply. Got it. Looks good! >The two resistors, the zener and the transistor >are all on the little piece of prototyping >circuit board zip-tied to the top of the >relay.=C2 For me it was easier to come up with a >3 ohm 100W power resistor than the 55W 12V lamp shown in Bob's schematic. Of course, that gives you an initial discharge ~4A at startup which tapers to ~3.66A at end of test. >I tested the 17AHr AGM battery (Werker, from >Batteries Plus) which I pulled out of my Longeze >this last summer (after two years of service) >and, at ~18 degreesF, it ran for 2hrs 35 minutes. Assuming an average drain of 3.8A x 2.6 hours yields 9.8 Ampere-Hours. Just for grins, let's go look at the specs on new Odyssey products Emacs! The PC535 (14.8 a.h. at 20 hour rate) will deliver about 12 a.h. at a 2.5 hour rate. This suggests that your existing battery delivers less snort than a new 15 a.h. battery. Comparing to a PC625 (18 a.h. at 20 hour rate), a 4A load should be supported for about 4 hours with a delivery of 15.6 a.h. Emacs! This is on example of how the po' boy's cap checker can be used to evaluate a battery . . . your test article is down to about 65% of new capacity. Time to toss in the towel. >=C2 I've yet to test the battery I replaced it with. Would like to see that data . . . >=C2 This is no where near long enough to match my >max duration (which is no surprise since my max >duration at economy cruise at altitude is almost >12 hrs...) but it good enough to provide enough options. Have you considered installing Z13/8? UNLIMITED endurance at 8A worth of system loads without up-sizing the existing battery. Thanks for sharing this! Bob . . . ________________________________ Message 9 _____________________________________ Time: 07:55:45 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Testing Battery Capacity... >I tested the 17AHr AGM battery (Werker, from Batteries Plus) which I >pulled out of my Longeze this last summer (after two years of >service) and, at ~18 degreesF, it ran for 2hrs 35 minutes. Just noticed the temperature callout . . . this was battery temperature at the beginning of the test? You might want to put it on a precision charger/maintainer and retest at room temp . . . you may well see a lot of improvement. Bob . . . Bob . . . ------------------------------------------------------------------------------------- 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.