battery operated timer for solar pump control

[Adam January 22, 2021 at 11:18 am Post count: 0]

#57981 Reply |

Hi,

For an off grid solar pump (24 volt, 380 watt) powered directly by 2 x 250 watt solar panels, I am looking for a timed relay, that can turn the pump on for about 1 hour a day. The pump is directly connected to the solar panels so there is no controller or battery in between. the pump basically starts working once the output voltage and power is suffient.

Since there is no battery in the system the timer should be powered by an external small battery to keep the clock powered.  My question is whether the product in the link or another one will be able to do the job. and how should it be wired for such a job.

https://www.droking.com/relay-module-5.0v-60v-real-time-relay-time-control-switch-24h-timing-control-clock-synchronization-time-control-delay-module

I hope someone can help me to figure this out.

 

 

[DrokKeymaster January 27, 2021 at 2:49 am Post count: 2971]

#58459 Reply |

Hello Adam,

Accordign to your information, you want to turn on a pump for one hour every day.  This item should meet your application. Please refer to P-1 working mode and the wiring diagram in the product images.

Any more questions, please let us know.

Best regards,

DROK

[Adam March 25, 2021 at 11:20 am Post count: 0]

#64731 Reply |

Thank you so much for your.

 

I still have the following concern. As the pump is in a remote location, There is no other power source than the solar panels. As the item needs to keep the correct time, I assume it uses the small internal  battery is for that. How long will it be able to keep operating more or less on a small battery like that? If its one year or more it should be fine but if its less it becomes a bit impractical..

 

Looking forward to you answer!

[DrokKeymaster March 26, 2021 at 9:23 am Post count: 2971]

#64834 Reply |

Hello

You need to connect DC5-60V power supply or USB power supply for relay operation. The internal battery only work for clock. In general, it can last a long time .

Best regards,

DROK

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