Hi... So we have timer adjustment (RV1) for restarting of the relay/pump. How about if we want to adjust timer for pump run time. For example in ur design contact circuit is ON only for 15 seconds if the water sensor not detecting any water flow or availability. What if we want to make the relay/pump run a bit longer in time.... let's say 2 or 5 or 10 minutes even (not just 15 seconds). Tengkiyu, kipidap.
Hi, the RV1 can be used to adjust the ON-OFF period of the 555 output, you can also adjust the R1, R2 values to further tweak the relay ON-OFF periods, however once water is detected at the sensor points, the 555 output and the relay will become permanently ON. Higher than 15 seconds is not recommended in the absence of water otherwise the motor might get burned and damaged.
Reed-switch/magnet system requires a float mechanism to work, which is complicated and expensive to install, and also it won't provide DRY-RUN protection.
Swagatam, thank you so much. You are doing amazingly well.
Thank you Jonathan, let me know if you have any doubts or queries about the above concept...
Flame sensor ionization rod
without
IR reserver and photodiode
Hello sir can you please make a flame sensor ionization flame rod flame circuit?
Hi...
So we have timer adjustment (RV1) for restarting of the relay/pump.
How about if we want to adjust timer for pump run time. For example in ur design contact circuit is ON only for 15 seconds if the water sensor not detecting any water flow or availability. What if we want to make the relay/pump run a bit longer in time.... let's say 2 or 5 or 10 minutes even (not just 15 seconds).
Tengkiyu, kipidap.
Hi, the RV1 can be used to adjust the ON-OFF period of the 555 output, you can also adjust the R1, R2 values to further tweak the relay ON-OFF periods, however once water is detected at the sensor points, the 555 output and the relay will become permanently ON. Higher than 15 seconds is not recommended in the absence of water otherwise the motor might get burned and damaged.
Your design is complicated. Reed switch with magnet and relays is vvery easy.
Reed-switch/magnet system requires a float mechanism to work, which is complicated and expensive to install, and also it won't provide DRY-RUN protection.