NI PXIe-4357 User Manual, which introduces the NI PXIe-4357's function characteristics, usage methods and precautions.
The NI PXIe-4357 is a high‑accuracy RTD input module that supports up to 20 channels of 2‑, 3‑, or 4‑wire RTD sensors and resistance measurements up to 400 Ω. Each channel supplies an excitation current of 0.9 mA and the module is isolated to 60 VDC, minimizing crosstalk in PXI Express systems.
This user manual covers installation, calibration, signal wiring, grounding, measurement configurations, trigger and timing options, PXI Express considerations, data‑transfer methods, and technical support resources. Detailed diagrams, pin assignments, and tables guide users through configuring the module for accurate temperature acquisition.
| Number of RTD channels | 20 |
|---|---|
| Maximum resistance measurement | 400 Ω |
| Excitation current per channel | 0.9 mA |
| Sample rate (high‑accuracy mode) | 1 S/s per channel |
| Sample rate (high‑speed mode) | up to 100 S/s per channel |
| Isolation voltage | 60 VDC |
| ADC resolution | 24‑bit delta‑sigma |
It supports 20 channels of 2‑, 3‑, or 4‑wire RTD sensors.
Each channel provides an excitation current of 0.9 mA.
In high‑accuracy mode the module samples at 1 sample per second per channel, and in high‑speed mode it can sample up to 100 samples per second per channel.
Yes, the module is isolated to 60 VDC.