Time to make a current measurement

[phx_tech]

Hi,

I am new to the PXI 4132. I am trying to measure current through a device using the PXI 1033 which has a PXI 4132 in it. I would like to know the lowest current that I can measure using this device(as I would be using this to measure leakage in a device) and also how much time would it take to make this lowest current measurement.

[johnsold]

I have never used this device but from the specification sheet it looks like measurement rates are dependent on the aperture time.  With longer aperture times you get less noise.  From Figure 5 and Table 2 it looks like the noise on a current measurement on the 10 uA range with 1 PLC aperture is about 20 pA RMS.  With that setting you can get a maximum of 59.9 or 49.9 readings per second, depending on your power line frequency.

Lynn