The NI PXI-6238 is an isolated M Series DAQ module with eight differential current inputs, 16-bit resolution and a maximum acquisition rate of 250 kS/s.
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Key product information and technical features.
The PXI-6238 combines current input/output, bank isolation and sourcing digital outputs in a PXI module.
NI identifies this model as an NI-DAQmx-supported M Series device. Check the selected driver release against the host operating system before integration.
Verified product specifications.
| Analog input channels | 8 differential current inputs |
|---|---|
| ADC resolution | 16 bits |
| Maximum acquisition rate | 250 kS/s |
| Analog input range | ±20 mA |
| Analog output channels | 2 current outputs |
| Analog output range | 0 to 20 mA |
| Maximum analog output update rate | 500 single-channel; 450 per channel with two channels kS/s |
| Digital channels | 6 inputs; 4 sourcing outputs |
| Form factor | Standard 3U PXI |
| I/O connector | 37-pin D-SUB |
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Manufacturer
DAQ platform and family
Isolated current-input DAQ module
NI-DAQmx; model support documented in the version 8.3 readme.
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Product-specific answers based on available technical information.
They are eight differential current inputs, not the eight single-ended or four differential inputs stated in the legacy catalog description.
NI specifies PXI slots or PXI Express hybrid slots.
Yes. The analog outputs require a user-provided 10–30 VDC supply.