6281, what is the accuracy in all ranges

[Ice__man]

Hi

I need to know the range accuracy in all 7 ranges of the 6281 DAQ

According to NI.com the accuracy is given for the max range (+/- 10V) and the min range (+/- 100mV).

Range accuracy(+/- 10V) = 980microV 

Range accuracy(+/- 100mV) = 28microV

I can't seem to locate this information about the 5 ranges in between, this is however in a very nice table in the specifications for example for the 6216??

If I calculate this then I need additional information that I can't find either.

HELP, and thanks if you did;)

[Morini]

Hi,

You can use our Accuracy Calculator for calculating the absolute accuracy for all input ranges for NI-6281.

http://www.ni.com/advisor/accuracy/default.htm

Please let me know if you have more questions.

Thanks! 

[Ice__man]

Thank you Dennis

Despite searching like a bloodhound, somehow I missed that nice calculator;)

Another question, if you please.

I have a system in which I need regulate by monitoring 3 voltage levels, 0-100mv, 0-500mv and 0-5V with high accuracy(controlling is through and SPI signal with a 8451 unit), hence the 6281, all it´s other functions, DIO, clocks etc. I don´t need.

I am wondering if it is the best choice or not, do you have any ideas?

thanks again for the earlier answer

[Morini]

Hi,

It depends on what your are measuring and the speed you want to acquire the data. But for high accuracy the PCI-628x serie is the best solution for you. If you don't need analog outputs, you can choose PCI-6280 instead.

Thanks!