How to get Pressure psi reading from DaqExpress

[YWTSC]

Dear NI community,

I installed DaqExpress, hooked up pressure transducer with NI 9205, and communicate with NI cDAQ 9174. I successfully get the analog input data and chart in voltage reading. How can I convert it to pressure psi reading? I tried scaling, it doesn't work. I tried Math->Numeric->Multiply, which need two input signals, I also tried MathScript, error message says type conflict, I connected a scalar data type and an array type.

What should I try next?

Many thanks!

Y

[BennyBenson]

Hi YWTSC,

If you work off of the 'Bridge Continuous Input' example in DAQExpress located at: Examples>Code Samples>Data Acquisition>Analog Input>Bridge Continuous input, this should give you a good starting point.

Basically you need to change your sensor task from a Voltage task to a Bridge or Pressure task, see the screen shot below for what this would look like setup with a 9205. 

Let me know if you have other questions.

[YWTSC]

Andrew,

Many thanks!

Yongkui

[BennyBenson]

Hi Yongkui,

I actually misread the module you were using, my recommendation would only work with one of our specific bridge modules(9237 in this case). You'll actually likely want to create a custom voltage with excitation task, then apply a scale in the task accordingly. 

Let me know if you have questions on how that would be done.