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Current Sensors for sale — Parallax Forums

Current Sensors for sale

davejamesdavejames Posts: 4,047
edited 2009-02-18 00:22 in General Discussion
Hi All,

I have 16 current sensors ($28 each·original purchase price) up for sale at $20 each.

These are "in-line" sensors rated at 50 amps (F.W. Bell, NT-50) - see attached data sheet.

If interested, please send me a PM.


Regards,

DJ
pdf
pdf
NTSeriesCurrentSensors.pdf
975K

Comments

  • Aaron WallAaron Wall Posts: 31
    edited 2009-02-16 15:55
    That is exactly what I'm looking for.

    Now my project has a normal draw of 5 amps and spikes up to 15 amps, 20 max.
    Considering that this would be operating within less than half the sensors range, would I loose sensitivity?
  • davejamesdavejames Posts: 4,047
    edited 2009-02-17 07:14
    Aaron,

    Linearity and accuracy are evidently fixed at <+/- 0.3% and <+/-0.1% respectively. The internals do not involve an A/D converter, it's purely analog.

    Let's PM.

    DJ
  • sam_sam_samsam_sam_sam Posts: 2,286
    edited 2009-02-17 23:30
    davejames

    What is the voltage at one amp of current through this sensor

    I might by one from you but I need to know this first

    Thank you for your time

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    ··Thanks for any·idea.gif·that you may have and all of your time finding them

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    Sam
  • davejamesdavejames Posts: 4,047
    edited 2009-02-18 00:22
    sam_sam_sam,

    Looking at the data sheet in the original post, it would appear that at max current (in this case 50 amps), the output voltage is 2.5V. Taking that max voltage and dividing it by the max current results in 50mV per amp, which may be too small for your application.

    There's always the possibility of gaining up the output via an op-amp to bring the voltage to a more measurable level.


    Regards,

    DJ
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