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Thread: Pressure transducers

  1. #1
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    Pressure transducers

    I bought (2) 1/8 npt transducers to incorporate into my pro link. One is 100psi. One is 500psi. Both are advertised as 0-5v.

    How would you go about setting these up in the scanner?

  2. #2
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    as long as u have the analogue inputs to use then u just need a 5v reference voltage then the offsets range for it to show the right pressure, same as setting a analogue wideband up

  3. #3
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    Currently I am using 1 analog for my WB, but I have been told that I can use it on my CAN wires and it operates the same. If thats the case, I will move it there, and then install 2 pin connectors on A1 and A2. Then I can exchange sensors as needed.

    Primarily I will use the 100psi for fuel pressure since Gen 3 doesnt report it, and use my 500psi for trans line pressure.

  4. #4
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    yea if u can get the calibration scale from the manufacture ((volts/psi)+offset) thats all u have to enter in the ''transform'' function when u set it up

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    100 psi
    Input: 0-100 psi

    Output: 0.5V~4.5V linear voltage output. 0 psi outputs 0.5V, 50 psi outputs 2.5V, 100 psi outputs 4.5V.

    Accuracy: within 2% of reading (full scale).

    Thread: 1/8"-27 NPT

    Wiring Connector: Water sealed quick disconnect. Mating connector and wire harness (pigtail) is included.

    Wiring: Red for +5V; Black for ground; Blue for signal output.



    500 psi
    Input: 0-500 psi (Gauge Pressure)

    Output: 0.5-4.5V linear voltage output. 0 psi outputs 0.5V, 250 psi outputs 2.5V, and 500 psi outputs 4.5V.

    Accuracy: +/-1%FS

    Thread: 1/8" NPT

    Wiring: Red for +5V; Black for ground; Yellow (Green) for signal output

    Overload Capacity: 2-4 times of rated pressure

    Working Temperature: -40℃~+120℃

    Compensation Temperature: 0℃~+80℃

    Protection Class: IP67



    This is the info they supplied. Is anything else needed?

  6. #6
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    I hope to try this tomorrow

  7. #7
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    ok for the hpt scanner inputs
    the 0-100psi transform will be (input / 0.0400) + -12.5
    the 0-500psi transform will be (input / 0.008 ) + -62.5

  8. #8
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    Who makes the sensors?
    We got this guy Not Sure, ...

  9. #9
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    MNJWS off of Amazon

  10. #10
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    What are you using for the 5v supply?

  11. #11
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    12v to 5v DC converter

  12. #12
    HP Tuners Owner Keith@HPTuners's Avatar
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    Can you provide a link to the sensors? I was unable to find them.
    We got this guy Not Sure, ...

  13. #13

  14. #14
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    Quote Originally Posted by village_idiot View Post
    100 psi
    Input: 0-100 psi

    Output: 0.5V~4.5V linear voltage output. 0 psi outputs 0.5V, 50 psi outputs 2.5V, 100 psi outputs 4.5V.

    Accuracy: within 2% of reading (full scale).

    Thread: 1/8"-27 NPT

    Wiring Connector: Water sealed quick disconnect. Mating connector and wire harness (pigtail) is included.

    Wiring: Red for +5V; Black for ground; Blue for signal output.



    500 psi
    Input: 0-500 psi (Gauge Pressure)

    Output: 0.5-4.5V linear voltage output. 0 psi outputs 0.5V, 250 psi outputs 2.5V, and 500 psi outputs 4.5V.

    Accuracy: +/-1%FS

    Thread: 1/8" NPT

    Wiring: Red for +5V; Black for ground; Yellow (Green) for signal output

    Overload Capacity: 2-4 times of rated pressure

    Working Temperature: -40℃~+120℃

    Compensation Temperature: 0℃~+80℃

    Protection Class: IP67



    This is the info they supplied. Is anything else needed?
    I can do this if you need.. but if you google search y=mx+b calculator or something like that you should be able to find a site you can input x and y values and get a linear function.
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  15. #15
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    Quote Originally Posted by Alvin View Post
    I can do this if you need.. but if you google search y=mx+b calculator or something like that you should be able to find a site you can input x and y values and get a linear function.
    You can also graph it in excel and it will give you the formula for the line.

  16. #16

  17. #17
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    Alvin is the values 07GTS posted above not correct?

    On the trial run of setting this all up, I will run a T fitting or whatever is necessary to hook a mechanical gauge in as well on the first few to verify they are scaled correctly

  18. #18
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    07GTS's formulas look right to me.

  19. #19
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    Quote Originally Posted by village_idiot View Post
    Alvin is the values 07GTS posted above not correct?

    On the trial run of setting this all up, I will run a T fitting or whatever is necessary to hook a mechanical gauge in as well on the first few to verify they are scaled correctly
    You can easily check yourself..


    plug the x's in and see if it gives you your Y's.

    so .5v = 0 psi
    2.5v = 50psi
    4.5 = 100 psi
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  20. #20
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    Good point