Signal Conditioning

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problem with a new PCI 6281 card

Hello,

I've bought a new PCI 6281 card because the old one didn't work anymore.

The system measurement is  as follow :

I send a sine signal (20 mVpp - 5Hz) to a vibrating sensor and I measure the response of the sensor. I use a PCI 6281 connected to a SC2345 and Ni max.

I have installed the new PCI6281 card with the drivers updated.

Under Ni max I send the sine signal to the sensor and I read the response. With the old PCI card there was no pb, I could see the sine signal on the test pannel, with the new one I see a line at 10 V.

Is there something to do before using a new PCI card ?

 

Thanks for your help.

 

Idetec.

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