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You depend on measurements to make key decisions and discoveries. NI offers a wide range of data acquisition products, including the low-cost DAQ family for basic applications such as simple data logging, ...

I am using some Digital Input (DI) lines on aNI-USB 621x device. How should the ground pins be connected? Can I connect a Digital Ground (D GND) pinon a NI USB-621x to an external ground reference? What ...

I know that bias resistors should be used when measuring floating sources with differential input or nonreferenced single-ended (NRSE) input systems. However, I am not sure what resistance values I should ...

I have two I/O devices of the same type (i.e. two sinking or two sourcing ones). I want to connect them together. Is that possible? Does my sinking output device require an external voltage source?

I would like to test my M Series device in NI-DAQmx to verify that the analog outputs and analog inputs are working. Are there any special channels I should use for diagnostics?

I am using the Pulse Measurement Counter Input tasks in DAQmx with my DAQ device and I am getting the following error at DAQmx Create Channel VI: Error -200431 occurred at DAQmx Create Channel (CI-Pulse ...

When I look at the user guides or specification documents of some NI data acquisition devices (DAQs), I see that 2 different sampling rates are available: single channel and multiple channels (aggregate). ...

I would like to accurately measure voltages between 14 V and 18 V. Is it possible to use a normal data acquisition +/-10V module to do this?

I would like to control a PXI/SCXI Combination Chassis with a PXI M Series device. Which device can be used and what do I need to pay attention to?

I want to output a chirp signal through my DAQ device in LabVIEW. Is there a way I can easily create a Chirp Signal in LabVIEW? Are there any considerations that need to be taken into account?

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