How to test low frequecy of signal by Aglent53131/Labview?

[kw0001]

I use Labview6.1/Agilent53131A/GAIB card to test a clock which frequency is slow (~ 1hz or less) and its jitter is higher (<5%). I test it with the Labview driever, it works ok for higher frequency, but failed for such low frequency, while i can get right value from instrument front panel control. During debug, i found the error is due to unsuitable work of labview driver i download from NI lib. Agilent told me that there maybe some problem for Agilent53131A to measure some low frequency signal, but i think there maybe some issue in its labview driver. I tried with various setting form the driver, also failed and have not found any problem for the driver.
Thanks for help.

[DiegoF]

Hi,

I'm a bit confused. Agilent told you that the instrument may not work correctly for low frequencies. If the instrument is not designed for those measurements, then there isn't too much the driver can do. In any case, I have some questions.

What's the error code?. How is the instrument driver failing? In what function?. Since the instrument driver works with the high frequency settings, these means that the communication with the instrument is established, that is, GPIB and NI-VISA are working properly. The errors must be instrument specific (returned by the instrument when the instrument driver queries the error condition). In that case, yhou should use the instrument's user manual and determine what commands are being sent and if they are valid.


Also, did Agilent's tech support have any suggestions?.

DiegoF.