Read a Load Cell Input using NI 9215 BNC Module

[Henrik_Volkers]

I didn't ask for the power requirement  of your sensor 🙂

I asked for the requirements of your force measurement 😉

Bridges can be measured with any a wide range of supply voltages (with some exceptions.. piezoelectric bridges, accuracy, self heating, ...)  

[askhassan1]

Hi all,

I am trying to calibrate an actuator load cell (interface) with 200 kip limit to an external NI cDAQ Module NI 9215 BNC. I just don'y know which scale factor to use for the conversion of voltage to lbs or kips since the documentation from the Load cell is in mV/V. Any Idea how to perform this calibration?

Thanks

[askhassan1]

Hi all,

I am trying to get a reading from an actuator's Load Cell (Interface) through my cDAQ and Module NI 9215 BNC. The output signal from the actuator is through a BNC cable as shown in the picture attached. I am not sure how much excitation is applied in order to calibrate the readings on the range of -/+ 10 V. The values from the load cell calibration document are in mV/V, how can I transform that to a range of +/- 10 V

Thanks

[GerdW]

Hi hassan,

there are surely more data in the datasheet than just this single mV/V value...

(What kind of unit is "kips", never heard of before!?)

[GerdW]

Hi Hassan,

please stick with one thread!

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@askhassan1 wrote:

I am not sure how much excitation is applied in order to calibrate the readings on the range of -/+ 10 V. The values from the load cell calibration document are in mV/V, how can I transform that to a range of +/- 10 V

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As I already answered to your other message: the datasheet of your sensor should provide more information than this single "mV/V" value…

Mind to attach that datasheet?

[askhassan]

Thanks for your reply !

Attached the load cell original documentation.

Thanks!

[GerdW]

Hi hassan,

Why do you want to scale to +-10V at all?

You should know the supply/excitation voltage as the NI9215 is a simple voltage measurement device. Then you can divide your signal by supply voltage to get the mV/V value as provided in the calibration sheet!

[felipecondo92]

Hi, 
I saw your answer about the connection between the load cell and the NI 9215. And I have a similar problem. 
I am trying to connect a load cell (4 wire load cell) to a either a NI 9220 or NI9264. Also I have a Pandajojo JY-S65 load cell senor transmitter amplifier module. It is my first time trying to put a circuit together. I would appreciate your help