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  • Users: jeffc0987
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  1. jeffc0987

    12V DC Motor Controls

    I am not an electrical engineer, nor do I know much about motor controls, and I was hoping to get pointed in the right direction for creating a custom programmable timer to drive a 12V motor. My company manufactures solar powered pumps which we would like to run intermittently every 30 seconds...
  2. jeffc0987

    Class 1 Div 2 On/Off Switch Question

    I was hoping someone could shed a bit of light on switch selection when trying to design a system for a class 1 div. 2 system. Our initial attempt at getting certified received this response regarding the switch and a potentiometer we plan to use in our system. Control/Battery Enclosure We...
  3. jeffc0987

    Pump Motor Sizing

    My company is looking to power a pushrod through the use of an eccentric disc. I have tested two motors and have also been trying to find an equation to somehow relate the amount of motor torque to the amount of force on the pushrod, but there seems to be huge gaps between the theoretical...

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