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Member JohnCS
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JohnCS
Posts: 85

Re: I am getting a great amount of 'noise' on my labview graph even when no transducers are connected. Any suggestions as to what this might be?

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‎04-27-2011 02:13 PM - edited ‎04-27-2011 02:13 PM

This is all good info. Your observation of 10 volts indicates that the differential input is not referenced to the instrument's ground. Run a jumper from pin 20 to AI GND. You should now see 0 volts. This should be in your manual under the title of Differential Connections or something like that. Earlier boards needed a bias resistor between AI- and ground.

 

Do you still have noise?

 

JohnCS 

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Member gp@CWC
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gp@CWC
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Re: I am getting a great amount of 'noise' on my labview graph even when no transducers are connected. Any suggestions as to what this might be?

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‎04-28-2011 09:45 AM

Works perfectly.  No more 'noise'.  Thanks to everyone for your help on this one.

 

Gerry

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