Different values of Excitation in the same spot

Hello

I am trying to acquire signals of pressure two sensors of pressure simultaneously using DAQ Assistant. I use an Ethernet NI DAQ with the NI 9237 Module chassis. One of the transducers requires a voltage of 10 vdc, while the other transducer requires 5 vdc excitation. I created a task DAQ Assistant with two channels (one for each transducer). When I run the VI, it returns the following error:

Error-200257 occurred to the DAQ Assistant

Possible reasons:

Property of excitement must be the same for the related physical channels.

Refer to the documentation for more information on the definition of excitement through the related physical channels.

Conflicting properties

Property: AI. Excit.Src
Value: Internal

Property: AI. Excit.Val
Value: 10.0

Channel name: Pressure_1

It looks like using different excitations causing the problem. Can you please help me solve this problem in order to acquire simultaneous action of the two sensors and provide the necessary excitement for each of them.

Aaron_W

Thank you for your response. Based on what you posted and I expected different values of excitement are at the origin of the problem. However, I am always looking for another solution instead of buying an additional module because it is quite expensive for a student like me.

Tags: NI Software

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