AeroElectric-List Digest Archive

Tue 12/04/18


Total Messages Posted: 10



Today's Message Index:
----------------------
 
     1. 04:03 PM - operating a relay with a cell phone (Ken Ryan)
     2. 05:59 PM - Re: operating a relay with a cell phone (Charlie England)
     3. 05:59 PM - Re: operating a relay with a cell phone (user9253)
     4. 06:12 PM - Re: operating a relay with a cell phone (user9253)
     5. 06:30 PM - Re: Re: operating a relay with a cell phone (Ken Ryan)
     6. 06:39 PM - Re: operating a relay with a cell phone (Ken Ryan)
     7. 07:45 PM - Re: Re: operating a relay with a cell phone (Art Zemon)
     8. 07:48 PM - Re: operating a relay with a cell phone (user9253)
     9. 08:15 PM - Re: Re: operating a relay with a cell phone (Ken Ryan)
    10. 08:17 PM - Re: Re: operating a relay with a cell phone (Ken Ryan)
 
 
 


Message 1


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    Time: 04:03:15 PM PST US
    From: Ken Ryan <keninalaska@gmail.com>
    Subject: operating a relay with a cell phone
    I bought a GSM Gate Opener GSM Remote Switch RTU5024, figuring I would use it to control a DPST relay on the plug-in wire to my Tanis pre-heat system, allowing me to turn it on and off using my cell phone. It has two inputs for 12v DC (+ and -) to power it. The other connections are labeled NO COM NC. I understand that NO means "normally open" COM means "common" and NC means "normally closed" I am not clear as to how I would incorporate a relay for turning my 110 volt circuit on and off. If the kind soul who helps could include a recommendation as to the specific relay, that would be great! Please help this dummy. Ken


    Message 2


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    Time: 05:59:14 PM PST US
    Subject: Re: operating a relay with a cell phone
    From: Charlie England <ceengland7@gmail.com>
    On 12/4/2018 6:01 PM, Ken Ryan wrote: > I bought a GSM Gate Opener GSM Remote Switch RTU5024, figuring I would > use it to control a DPST relay on the plug-in wire to my Tanis > pre-heat system, allowing me to turn it on and off using my cell phone. > > It has two inputs for 12v DC (+ and -) to power it. The other > connections are labeled NO COM NC. > > I understand that NO means "normally open" COM means "common" and NC > means "normally closed" I am not clear as to how I would incorporate a > relay for turning my 110 volt circuit on and off. If the kind soul who > helps could include a recommendation as to the specific relay, that > would be great! Please help this dummy. > > Ken > > Hi Ken, If it's this model: https://www.amazon.com/Opener-Remote-Access-Sliding-RTU5024/dp/B07BT3N4QM/ref=asc_df_B07BT3N4QM/?tag=hyprod-20&linkCode=df0&hvadid=241942959786&hvpos=1o2&hvnetw=g&hvrand=9161805644825714517&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9013952&hvtargid=pla-458426103553&psc=1 one of the images on that page shows the relay as having 'dry' contacts. See the image the shows 220VAC feeding through the NO / COM contacts to run a motor. You can wire 110VAC the same way to your heater. *BUT* : you need to find the current rating of the relay contacts, to be sure you won't be overloading them with your heater. If the heater load exceeds the relay contact rating, you can still use it by adding a heavier external relay, driven by the relay in the opener. You'll likely have to configure the switch to be continuous 'on' instead of momentary 'on' which would be the case for a gate controller. Check back if you need a wiring diagram for an external relay. Charlie --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus


    Message 3


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    Time: 05:59:49 PM PST US
    Subject: Re: operating a relay with a cell phone
    From: "user9253" <fransew@gmail.com>
    Here is a schematic diagram. -------- Joe Gores Read this topic online here: http://forums.matronics.com/viewtopic.php?p=486130#486130 Attachments: http://forums.matronics.com//files/tanis_heater_173.jpg


    Message 4


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    Time: 06:12:18 PM PST US
    Subject: Re: operating a relay with a cell phone
    From: "user9253" <fransew@gmail.com>
    How many watts is the Tanis heater? If it is 400 watts or more, then a heavy duty relay needs to be added. -------- Joe Gores Read this topic online here: http://forums.matronics.com/viewtopic.php?p=486132#486132


    Message 5


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    Time: 06:30:41 PM PST US
    From: Ken Ryan <keninalaska@gmail.com>
    Subject: Re: operating a relay with a cell phone
    Joe, the Tanis is only 230 watts, but I'm reluctant to use the RTU5024 as the main relay. I was planning to use a separate heavy duty relay for the main relay, and use the RTU5024 to control it. Can you show me how I would do that (control a relay with a relay)? Also if you could give me a Mouser part number for an appropriate relay, that would really fix me up. On Tue, Dec 4, 2018 at 5:16 PM user9253 <fransew@gmail.com> wrote: > > How many watts is the Tanis heater? If it is 400 watts or more, then a > heavy duty relay needs to be added. > > -------- > Joe Gores > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=486132#486132 > >


    Message 6


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    Time: 06:39:38 PM PST US
    From: Ken Ryan <keninalaska@gmail.com>
    Subject: Re: operating a relay with a cell phone
    Charlie, yes I think that is what I need. A wiring diagram for using a separate relay. The RTU5024 is programmable to be on for a set period of time. It can also be programmed to only accept command from authorized numbers, etc. And supposedly I don't need a phone plan for it, only a sim card. If it works out as I hope, it will be really neat. On Tue, Dec 4, 2018 at 5:03 PM Charlie England <ceengland7@gmail.com> wrote : > ceengland7@gmail.com> > > On 12/4/2018 6:01 PM, Ken Ryan wrote: > > I bought a GSM Gate Opener GSM Remote Switch RTU5024, figuring I would > > use it to control a DPST relay on the plug-in wire to my Tanis > > pre-heat system, allowing me to turn it on and off using my cell phone. > > > > It has two inputs for 12v DC (+ and -) to power it. The other > > connections are labeled NO COM NC. > > > > I understand that NO means "normally open" COM means "common" and NC > > means "normally closed" I am not clear as to how I would incorporate a > > relay for turning my 110 volt circuit on and off. If the kind soul who > > helps could include a recommendation as to the specific relay, that > > would be great! Please help this dummy. > > > > Ken > > > > > > > Hi Ken, > > If it's this model: > > https://www.amazon.com/Opener-Remote-Access-Sliding-RTU5024/dp/B07BT3N4QM /ref=asc_df_B07BT3N4QM/?tag=hyprod-20&linkCode=df0&hvadid=241942959 786&hvpos=1o2&hvnetw=g&hvrand=9161805644825714517&hvpone=&hvptwo= &hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9013952&hvtargid=p la-458426103553&psc=1 > > one of the images on that page shows the relay as having 'dry' contacts. > See the image the shows 220VAC feeding through the NO / COM contacts to > run a motor. You can wire 110VAC the same way to your heater. *BUT* : > you need to find the current rating of the relay contacts, to be sure > you won't be overloading them with your heater. If the heater load > exceeds the relay contact rating, you can still use it by adding a > heavier external relay, driven by the relay in the opener. You'll likely > have to configure the switch to be continuous 'on' instead of momentary > 'on' which would be the case for a gate controller. > > Check back if you need a wiring diagram for an external relay. > > Charlie > > > --- > This email has been checked for viruses by Avast antivirus software. > https://www.avast.com/antivirus > =========== =========== =========== =========== =========== =========== > >


    Message 7


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    Time: 07:45:26 PM PST US
    From: Art Zemon <art@zemon.name>
    Subject: Re: operating a relay with a cell phone
    I know that it isn't as much fun as building something cool out of a cell phone radio and a relay, but you can just buy a mechanical thermostat for next to nothing. Here is one for $27 at Grainger https://www.grainger.com/product/DAYTON-Line-Volt-Mechanical-Tstat-2E815 -- Art Z. -- https://CheerfulCurmudgeon.com/ *"Be kind, for everyone you meet is fighting a hard battle."*


    Message 8


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    Time: 07:48:31 PM PST US
    Subject: Re: operating a relay with a cell phone
    From: "user9253" <fransew@gmail.com>
    You can buy a 30 amp relay at an auto parts store. Ignore the B beside the battery. -------- Joe Gores Read this topic online here: http://forums.matronics.com/viewtopic.php?p=486135#486135 Attachments: http://forums.matronics.com//files/tanis_heater__116.jpg


    Message 9


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    Time: 08:15:23 PM PST US
    From: Ken Ryan <keninalaska@gmail.com>
    Subject: Re: operating a relay with a cell phone
    Art, my goal is not to regulate the temperature of the engine, it is to control the on/off switch via cell phone, so that I can phone in the night before and the engine will be toasty the next morning, ready for service. On Tue, Dec 4, 2018 at 6:49 PM Art Zemon <art@zemon.name> wrote: > I know that it isn't as much fun as building something cool out of a cell > phone radio and a relay, but you can just buy a mechanical thermostat for > next to nothing. Here is one for $27 at Grainger > https://www.grainger.com/product/DAYTON-Line-Volt-Mechanical-Tstat-2E815 > > -- Art Z. > > -- > https://CheerfulCurmudgeon.com/ > > *"Be kind, for everyone you meet is fighting a hard battle."* >


    Message 10


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    Time: 08:17:21 PM PST US
    From: Ken Ryan <keninalaska@gmail.com>
    Subject: Re: operating a relay with a cell phone
    Okay, so an automotive relay like we would use on our airplanes would be okay for this application, too. I have a few lying around. On Tue, Dec 4, 2018 at 6:52 PM user9253 <fransew@gmail.com> wrote: > > You can buy a 30 amp relay at an auto parts store. > Ignore the B beside the battery. > > -------- > Joe Gores > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=486135#486135 > > > Attachments: > > http://forums.matronics.com//files/tanis_heater__116.jpg > >




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