RPM sensor

Discussion in 'General Electronics Chat' started by jpickles77, Dec 2, 2015.

  1. jpickles77

    Thread Starter Member

    Nov 4, 2015
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    Just got this in the mail finally and it's not what I thought!!? The wafer cable needs to be wired but I have no idea to what. I also don't know where the 3rd wire from the sensor goes, can someone help this major newbie with 2 year old language?

    image_jpickles77_800x600.jpeg
     
  2. ISB123

    Well-Known Member

    May 21, 2014
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    What is the name of the sensor?
     
  3. spinnaker

    AAC Fanatic!

    Oct 29, 2009
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    Are you certain that wafer is not a magnet? Seems a bit thin for one but who knows. Place a paper clip on it to see if it sticks.
     
  4. ISB123

    Well-Known Member

    May 21, 2014
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    Here:
    • Brown-VCC
    • Blue-GND
    • Black-Signal
    Strange wire color code....
     
  5. GopherT

    AAC Fanatic!

    Nov 23, 2012
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    Hey, Major! Were you the artist or was that someone else you speak to in 2-year-old language.



    image.jpg
     
  6. ScottWang

    Moderator

    Aug 23, 2012
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    The files size that you attached were too big, I was compressed it to the normal size, they are from about 1.2MB compressed to about 90KB, next time before you upload the files, please compress the photos to 800x600 or 640x480, if necessary then you can compress to 1024x768, almost the photos using 800x600 image is enough.

    Too much file size will affecting the connecting speed of members to get into the forums, thanks for your understanding and cooperation.
     
  7. jpickles77

    Thread Starter Member

    Nov 4, 2015
    69
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    lol my wife did that to a piece of tape on my work bench
     
  8. jpickles77

    Thread Starter Member

    Nov 4, 2015
    69
    2
    the wafer cable plugs into the digital display, but I don't know where the other ends go!
     
  9. jpickles77

    Thread Starter Member

    Nov 4, 2015
    69
    2
    the wafer plugs Into the digital display, but I don't know where the other 5 leads go. also I need to know which of those coloured wires are positive and negative. 2 gents on here, dodgydave and Maxheadroom recommended it but I didn't think it would come like this. Im totally confused and really need some step by step instruction in simple English lol
     
  10. jpickles77

    Thread Starter Member

    Nov 4, 2015
    69
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    well the rpm sensor finally came, but im very confused about how to wire it, are one you guys out there?
    help! IMG_0984.JPG
     
  11. GopherT

    AAC Fanatic!

    Nov 23, 2012
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    Why don't you continue on your original tread?
     
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  12. jpickles77

    Thread Starter Member

    Nov 4, 2015
    69
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    I was hoping the 2 members that were originally helping me with this would see the newer post. The idea of naming them on the heading was an afterthought. One of them recommended I buy this sensor so now I need help wiring it.
     
  13. AnalogKid

    Distinguished Member

    Aug 1, 2013
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    From post #2, what is the name of the sensor? Who makes it? What is the part number? Where did you buy it? Is there an online link to any information? Thanks for the picture; we need the (1000) words.

    ak
     
  14. spinnaker

    AAC Fanatic!

    Oct 29, 2009
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    Continue on the original thread please. Both multiple threads on the same subject and calling out specific forum members is rude behavior. People will help when they are able.
     
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  15. Dodgydave

    Distinguished Member

    Jun 22, 2012
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    Hello mate what is the problem, looks like its an inductance sensor with 3 wires, two supply one output...

    Edit dont forget I'm in UK, time difference is 6 hrs ahead of you
     
  16. MaxHeadRoom

    Expert

    Jul 18, 2013
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    Appears to be a common proximity ferrous metal detector, the most common (standard) wire colours are Brown=+v, Black=output, Blue=-ve
    You also need to know if it is NPN or PNP output, usually open collector.
    Max.
     
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  17. MaxHeadRoom

    Expert

    Jul 18, 2013
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    Appears to be a common proximity ferrous metal detector, the most common (standard) wire colours are Brown=+v, Black=output, Blue=-ve
    You also need to know if it is NPN or PNP output, usually open collector.
    Max.
     
  18. cmartinez

    AAC Fanatic!

    Jan 17, 2007
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    Agreed. It looks exactly like that. The device is probably nothing more than a simple frequency counter, which then translates the signal into RPMs. Also, probably the wafer is a metal disc meant to be adhered to a non-ferrous wheel for the sensor to work properly.
    OP: Do you have a user's manual, spec sheet, etc? To what do you intend to attach your sensor, a car?
     
  19. GopherT

    AAC Fanatic!

    Nov 23, 2012
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    Max,

    That seems like an odd color assignment yet you talk like it is some defacto industry standard. Is there some sort of history to that. Is there some sort of decoder chart that has all the wire color assignments for common sensors?
     
  20. jpickles77

    Thread Starter Member

    Nov 4, 2015
    69
    2
    Thanks Max , if you recall this one was recommended by you so I ordered it, so I'm just wondering if I could get some help hooking it up? The 3 wires coming from the sensor are one thing, but the wafer cable is bothering me, it plugs Into the display but I don't know where the other end goes? Reminder that I'm very new to all of this :)
     
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