---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Mon 03/12/18: 8 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 02:31 AM - Re: Re: Defrost switch (Carlos Trigo) 2. 04:06 AM - Dynon Pitot Heat Warning with MGL EFIS (Art Zemon) 3. 05:00 AM - Re: Dynon Pitot Heat Warning with MGL EFIS (user9253) 4. 05:33 AM - Re: Re: Dynon Pitot Heat Warning with MGL EFIS (Art Zemon) 5. 07:12 AM - Re: Dynon Pitot Heat Warning with MGL EFIS (user9253) 6. 08:13 AM - Re: Re: Dynon Pitot Heat Warning with MGL EFIS (Art Zemon) 7. 12:47 PM - Re: Dynon Pitot Heat Warning with MGL EFIS (user9253) 8. 02:02 PM - Re: Re: Dynon Pitot Heat Warning with MGL EFIS (FLYaDIVE) ________________________________ Message 1 _____________________________________ Time: 02:31:24 AM PST US From: "Carlos Trigo" Subject: RE: AeroElectric-List: Re: Defrost switch Ok, due to not knowing what is the thermostat circuit, I will go the DPDT way, like it was suggested by Dick Tasker. Thanks Dick, don't we know each other from the Subbie group? Cheers Carlos -----Mensagem original----- De: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] Em nome de user9253 Enviada: Sunday, March 11, 2018 3:06 AM Para: aeroelectric-list@matronics.com Assunto: AeroElectric-List: Re: Defrost switch Dick Tasker, right you are. The manual warns against connecting power to the temperature controller output. At least I think it says that. It is hard to read Chinese. LOL Without having the controller circuit board in hand along with a schematic, an informed decision can not be made. Dick's suggestion about using a double pole double throw (DPDT) switch is the safe way to wire it. -------- Joe Gores Read this topic online here: http://forums.matronics.com/viewtopic.php?p=478572#478572 ________________________________ Message 2 _____________________________________ Time: 04:06:39 AM PST US From: Art Zemon Subject: AeroElectric-List: Dynon Pitot Heat Warning with MGL EFIS Folks, I am installing a Dynon heated pitot tube. The controller has a pin which gets grounded if the heater is turned on and fails. This is supposed to drive a warning lamp. See "pitot heat warn" on the attached diagram. I want to replace the pitot heat warn lamp with an indicator on my MGL EFIS. The EFIS has eight analog inputs (see A1 through A8 on page 6 of the attached iBOX V1 installation manual) and also has four balanced analog inputs (see 1+,1- through 4+,4-) on page 7. This would be easy for me if INST-4-G from the Dynon controller was either grounded or at some positive voltage. But if I understand correctly, that wire is either grounded or open. How do I hook this to my EFIS? Thanks, -- Art Z. -- https://CheerfulCurmudgeon.com/ *"If I am not for myself, who is for me? And if I am only for myself, what am I? And if not now, when?" Hillel* ________________________________ Message 3 _____________________________________ Time: 05:00:01 AM PST US Subject: AeroElectric-List: Re: Dynon Pitot Heat Warning with MGL EFIS From: "user9253" Connect a pull-up resistor, perhaps 1K or more, between a positive source and the Dynon alarm wire. -------- Joe Gores Read this topic online here: http://forums.matronics.com/viewtopic.php?p=478611#478611 ________________________________ Message 4 _____________________________________ Time: 05:33:50 AM PST US From: Art Zemon Subject: Re: AeroElectric-List: Re: Dynon Pitot Heat Warning with MGL EFIS Joe, What do I connect to the EFIS? -- Art Z. On Mon, Mar 12, 2018 at 7:59 AM, user9253 wrote: > > Connect a pull-up resistor, perhaps 1K =CE=A9 or more, between a positive > source and the Dynon alarm wire. -- https://CheerfulCurmudgeon.com/ *"If I am not for myself, who is for me? And if I am only for myself, what am I? And if not now, when?" Hillel* ________________________________ Message 5 _____________________________________ Time: 07:12:16 AM PST US Subject: AeroElectric-List: Re: Dynon Pitot Heat Warning with MGL EFIS From: "user9253" A picture is worth a thousand words. -------- Joe Gores Read this topic online here: http://forums.matronics.com/viewtopic.php?p=478617#478617 Attachments: http://forums.matronics.com//files/pitot_alarm_221.jpg ________________________________ Message 6 _____________________________________ Time: 08:13:46 AM PST US From: Art Zemon Subject: Re: AeroElectric-List: Re: Dynon Pitot Heat Warning with MGL EFIS Joe, Got it. That'll work. Thank you. -- Art Z. On Mon, Mar 12, 2018 at 10:11 AM, user9253 wrote: > > A picture is worth a thousand words. -- https://CheerfulCurmudgeon.com/ *"If I am not for myself, who is for me? And if I am only for myself, what am I? And if not now, when?" Hillel* ________________________________ Message 7 _____________________________________ Time: 12:47:05 PM PST US Subject: AeroElectric-List: Re: Dynon Pitot Heat Warning with MGL EFIS From: "user9253" I would try it without the pull-up resistor first. It might not be needed. -------- Joe Gores Read this topic online here: http://forums.matronics.com/viewtopic.php?p=478626#478626 ________________________________ Message 8 _____________________________________ Time: 02:02:32 PM PST US From: FLYaDIVE Subject: Re: AeroElectric-List: Re: Dynon Pitot Heat Warning with MGL EFIS How would you do that if the reference is ground? On Monday, March 12, 2018, user9253 wrote: > > I would try it without the pull-up resistor first. It might not be needed. > > -------- > Joe Gores > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=478626#478626 > > -- Barry "Chop'd Liver" If you wash your hands before you go to the bathroom you may have the makings of a Crew Chief. ------------------------------------------------------------------------------------- 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.