A recent timer replacement thread on another forum i frequent inspired me to finally fix the Tork mechanical timer that was supposed to be used with our stream pump. I've been meaning to get to it for at least 5 years now! Me being cheap, I hated to spend the $ for another mechanical timer and it wasn't too inconvenient to manually turn the pump on to circulate the water since I am outside often anyway. It just doesn't happen regularly so the water in the pondless reservoir can get a little stagnant.
I wanted a bit more functionality than the simple solid state relay chosen for the other application. I wanted a manual override switch on the unit so the pump could be turned on outside the programmed daily time slot. There are quite a few varieties of relays to choose from. The price was right and I didn't have to wait a month for it to ship from the far east so I picked this one:
DIN Rail Time Relay Switch AC 110V Digital LCD Power Programmable Timer - - Amazon.com
It got here yesterday, only took 3 days.
The instructions are in chinglish so you need to be fluent or get a translator or go with trial and error. Last night I wired it up on the bench with a meter to get an understanding of how to program it and make sure it worked like I thought it would. I went with the trial and error programming method and got the hang of it after about 1/2 hour.
I found my box of scrap DIN rail this morning and got to work on it.
Out with the old...
In with the new...
Controls the pump for this....
Unlike what usually happens, it even fit in the Tork box depth-wise so the door can close!
I think I have it programmed to come on at 2300 and go off at 2345 on M,W,F,Sa so the water in the pondless reservoir gets circulated periodically. I will check tonight to see if I got it right. The manual button can be turned on/off through the day if SWMBO wants the water feature effect while outside gardening. Or if I need the water hazard activated for a putting green event!