Trouble with niDMM Overrange

[al0909]

Dear NI Community, 

I am trying to measure some capacitance in parallel that should give me 6uF in theory. My PXIe4082 always returns an error with over range (code : 1073356901), even if I am trying with every range possible. Do you have maybe some idea about with parameters I can use to solve this issue ? I am 100% sure of the MUX channel I am using and 100% sure that all the capacitance are good.

I am attaching a screenshot of a VI where I tried every range. However at the end, it will be in a TestStand sequence. 

Thanks a lot in advance for you answer, 

Best regards

[santo_13 · Accepted solution]

For sanity check, try connecting that capacitor directly to DMM terminals, use the DMM Soft Panel and perform measurement. If you aren't able to measure, then, something is wrong with hardware. If successful, gradually add complexity until you reach the end goal, this way, you will be able to narrow down the problem.

[Frozen]

You do realise you have the ERROR chain looping back to the start of your loop? Meaning, once an error occurs, it gets propagated to all range measurements.

Try changing the Shift register to an indexing tunnel.

[billko]

---

@Frozen wrote:

You do realise you have the ERROR chain looping back to the start of your loop? Meaning, once an error occurs, it gets propagated to all range measurements.

Try changing the Shift register to an indexing tunnel.

---

I think that it is good practice to have the error wire in a shift register when using a FOR loop to guard against the FOR loop iterating zero times and losing the incoming error in the process. Maybe a better way is to clear the error. An even better way would be to understand the error and handle it.