making multi function water level


Posted on Feb 6, 2014

The following multi-function water level controller circuit post is based on the suggestions expressed by Mr. Usman. Lets learn more about the requested modifications and the circuit details. 1) To protect the motor from potential overheating (or as a safety feature) can u add an automatic shutdown timer If the motor is running for one hour (or 1.


making multi function water level
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5hrs or 2-hrs) and the water level does NOT reach the level-sensor, the motor should be automatically stopped. Of course, it can be re-started manually by pushing the start button again. 2) Can the motor be manually stopped at any time For example, what if one wants to water the lawn (or wash the car) for a few minutes using high pressure water directly from the motor " So I guess, the STOP logic (1, 2 and 3) can be configured to the base of T1 (in your April 20 post) and it should work. Pls comment, and if you have time maybe you can make a new post! 1)Water level reaches a pre-determined level: Point A and B may be appropriately fixed inside the tank for regulating this function. Since point B is situated at the bottom of the tank, remains connected with the water permanently, now as the level rises and comes in contact with point A, the positive potential from point A connects with point B, which instantly reset pin#12 of the IC, switching OFF the relay and the entire system. 2)A predetermined time has lapsed: This feature is already present in the below given circuit. The timing outputs can be increased to any desired extents simply by increasing the values of P1 and C1. 4) Powerfailure(load shedding): During a possible power failure or instantaneous power "blinks", the IC needs to be supplied with the required supply voltage so that the timing does not get interrupted. This is very simply done by adding a 9 volt...




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