milliamps to millivolts

Discussion in 'Electronics Resources' started by johner, Nov 7, 2010.

  1. johner

    Thread Starter New Member

    Nov 7, 2010
    4
    1
    controller makes milliamps as the out put of control,,,, SSR needs input of millivolts, can milliamps be changed to volts with a resistor, if so how many ohms resistor.

    out put is 4-20 milliamps,,, SSR 3-32 volts full range.
     
    Last edited: Nov 7, 2010
  2. Audioguru

    New Member

    Dec 20, 2007
    9,411
    896
    SSR are 3 letters that mean nothing. Please describe what they are.
    Use Ohm's Law to simply calculate how much current in a resistor makes how much voltage.
     
  3. hgmjr

    Moderator

    Jan 28, 2005
    9,030
    214
    Johner,

    Can I assume that by SSR you are refering to Solid State Relay?

    hgmjr
     
  4. johner

    Thread Starter New Member

    Nov 7, 2010
    4
    1
    Yes it is thank you.
     
  5. retched

    AAC Fanatic!

    Dec 5, 2009
    5,201
    312
    I thought it was Super Studly Retched... ;)

    As for your conversion, if you use a 1 ohm resistor, mA will equal mV

    I keep a 50W 1% 1ohm resistor for just these reasons.

    Get a precision resistor! At such low levels, a 10% or even a 5% will not be very accurate.
     
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