Scc sg04: can the excitation voltage value be change?

Hello everyone!
I have a question if someone can and is willing to help me.
Im using a DAQ system connecting a SCC SG04 to SCC68 for acquiring data from 2 pressure transducers. The excitation voltage provided by SCC-SG04 is 2.5V, but the pressure transducers only require maximum 1V. I was trying to modify from DAQ Assistant the value of the excitation to 1V but Im receiving errors (200077) from DAQ Ass. Could you tell me please if there is a way to change the excitation voltage as to each of the sensors to receive 1V? Is this value of voltage 2.5V a constant for this type of signal conditioning?
Thank you very much and I would appreciate your help!
Regards,
Flory

Hi Flory
I have done some more research into you problem. The tutorial you were looking at is correct. However the SCC module that you are using has a built in excitation voltage of 2.5V and this cannot be changed through MAX.
I can suggest two options:
1) Connect a potential divider to the excitation voltage terminals of the module to reduce the voltage.
2) Connect an external power supply to your pressure sensor to provide the excitation voltage. Then use the SCC module to read the voltage output from the sensor.
Regards
Beejal
Beejal S
NI UK & Ireland

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