How to design a Transfer pump on/off circuit

Discussion in 'Digital Circuit Design' started by ralphspa, Sep 20, 2016.

  1. ralphspa

    Thread Starter New Member

    Sep 12, 2016
    I have a 12 volt oil transfer pump that a computer controls on/off. It transfers oil from main tank on boat to remote tank on outboard motor.
    remote tank on motor has low/full level pair of switches that send a ground signal to computer depending on oil level. i would like to design an electronic circuit that will trigger pump to come on when low level switch grounds out and keep pump on until full level switch tell curcuit to turn pump back off.
    I am unable to come up with an idea that will do this.
    Any help would be appreciated
    Thanks in advance
  2. R!f@@

    AAC Fanatic!

    Apr 2, 2009
    Welcome to AAC
    It is easy.
    Need some info though.
    1. Operating Power of pump and available battery voltage.
    2. What kinda limit sensors are used to sense empty and full conditions.
    3. Do you have excess to these sensors wire terminals, if not do you plan on to install sensors.
    And any other info you have will help.