NI 6008 increasing resolution by restricting range?

[dsiap]

Hello,

I am wondering whether or not it is possible to increase the resolution of the NI 6008 by restricting the range in the labview software?  For example if I set it to -5 to 5 V instead of -10 to10 V will I then get 10/(2^12) increments as opposed to 20/(2^12) resolution?  

Thanks

[John_P1 · Accepted solution]

Yes, but you have to use one of the ranges that the hardware supports.  You can find the full list in the specifications.

If using differential measurements you may use ±5V.  If single-ended, you only have the option of ±10V.

Best Regards,

[SnowMule]

Min/Max on the DAQmx Creat Virtual Channel VI rounds up to the nearest appropriate range on the DAQ. 

RSE on the 600x is fixed at ±10V.  Whatever you plumb into those min/max terminals, as long as you're using RSE you get the ±10V range.

Switching to differential gives you many more ranges, which are listed in the specs.