Hi frequency mic doesn't work with 6062e card

[Hani R]

Hi Ed,

Could you try other input channels on the BNC-2110?  Also, could you verify that your hardware is working correctly by conducting a simple test?  You can set up an analog output task and an analog input task for the 6062E.  You can then connect the output channel on the BNC-2110 to one of the analog input channels.  If the signal ramps to 10V, there may be an issue with the hardware. 

[EHP]

Hani,

I conducted a test as you suggested.  On the BNC-2110 I connected a jumper cable from DAC0 OUT to ACH0.  Then from the test panel, I set up a 1 Hz signal on analog output channel 0:


I then clicked the Analog Input tab and acquired data on analog input channel 0 for all three input configuration types:

As is evident, the signal appeared quite nicely for 'Differential' and 'RSE'.  With 'NRSE' the ramping effect occurs, though the signal is visible along the ramp.

I await furhter guidance.

Ed

[Hani R]

Hi Ed,

The 6062E has a maximum absolute voltage range (channel to earth ground) of 11V.  The BNC-2110 was designed for differential measurements (AI+ - AI-), but the individual channel to ground potential ((AI+ - AIGND) and (AI- - AIGND)) has to be within specification.  This means that your DMM might give you a differential reading of <1V but the difference between AI+ to ground could exceed the 11V.  Could you try placing one of your DMM leads to the power supply and the other lead to AIGND on the BNC connector block.  The differential voltage reading will let us know if the input signal is out of specification for the 6062E.