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|    sci.electronics.repair    |    Fixing electronic equipment    |    124,925 messages    |
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|    Message 123,745 of 124,925    |
|    ehsjr to All    |
|    Re: Time Delay Relay or other something     |
|    30 Jul 23 17:41:23    |
      From: ehsjr@verizon.net              On 7/30/2023 2:05 PM, ABLE1 wrote:       > On 7/30/2023 1:41 PM, Klay Anderson wrote:       >> On Sunday, July 30, 2023 at 7:34:27 AM UTC-6, ABLE1 wrote:       >>> On 7/30/2023 8:48 AM, Allodoxaphobia wrote:       >>>> On Sat, 29 Jul 2023 10:21:31 -0400, ABLE1 wrote:       >>>>       >>>>> power off for a second or two. When that happens at night the motion       >>>>> sensor head powers the lights on until I happen to notice and flip the       >>>>> switch off for about 5 - 8 seconds and then all returns to normal,       >>>>> otherwise the lights stay on until the Sun comes up.       >>       >> There are quite a few off-shore assembled circuits that will do what       >> you want but will not fit in the space. Additionally, they typically       >> need a small amount of DC to work the circuitry. There are several       >> I've used and they work fine. Since you indicated an additional       >> waterproof box is not desired, I suggest a box extender and possibly       >> one of those cards. No matter what you do it's gonna get crowded in       >> there. Oh, BTW, there are some programmable DIN rail mounting devices       >> as well for mounting closer to the breaker box. Yet another idea is to       >> add Z-Wave (Smartthings) to your home to automate this and other       >> devices in your home. Replace that wall switch with a z-wave and you       >> can at least turn it off and on remotely. There may be a way to add a       >> turn-on delay as well depending on the switch.       >       >       > Hi Klay,       >       > Thanks for the extra input. I have found from another group       > that a Omron H3Y-2 would do the job. Already ordered one       > at a very good price. Once I have in my hands I will determine       > a best fit for the existing box. It it is a challenge I will       > swap it out for something else that will work. With the socket       > for the Relay Module it is only about 3.4" high and it might fit       > laying it on it's side. If not a 4" square PVC box should work.       >       > Time will Tell!!       >       > Les       >              Your break even point (cost of electricity saved vs cost of       Omron) comes out to about 4 years using rough estimates:       12 outages per year; 6 hours 27 minutes per outage;       15.5 W LED floodlight; $0.23 KWH average.       You can come to a more accurate number using the specs that       apply to you instead of the averages I used.              That assumes your cost is $10.00. It won't be, using the       Omron. You'll need to buy the proper fittings/rails/enclosures/       wire etc. You'll need to install it in a dry location - ie       indoors - which can add construction costs. If you jury rig       the thing it will likely be unsafe, and definitly be unsafe       as far as the NEC is concerned.              The best solution - if it exists - is to buy a floodlight that       is programmable the way you want it. What you (and I) have is       designed to be programmable via an on/off switch to do exactly       what you describe: a real brief power interruption turns the       light on until either the sun comes up or you turn off the       switch; an extended (several seconds) power interruption       enables the light to respond to motion. You can find the       description of that buried somewhere in the documentation that       applies to your light.              The REAL question is what is it worth to you to do about it?       I understand the attraction of looking for a "gizmo" to modify       what you've got. It can be hard to defeat that attraction.       Cold hard reality can help. Run the numbers for your floodlight       in your location. Think really hard about whether making things       unsafe - or potentially unsafe - is worth it. Think about how       much time and effort you have to put into it. There does come       a point where it is no longer fun.              Ed              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
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