NATIONAL Instruments has released the NI PXIe-4357 input module which provides integrated data acquisition and signal conditioning for resistance temperature detector (RTD) measurements.
The 20-channel module is the latest addition to the SC Express sensor measurement family for PXI Express, featuring five 24-bit delta-sigma analogue-to-digital converters with anti-aliasing and lowpass filters for superior accuracy.
The module offers sampling rates up to 100S/s per channel in high-speed mode or 1S/s with typical measurement accuracies of 0.09°C in high-resolution mode.
A front-mount terminal block provides screw terminal connectivity for 2-, 3-, or 4-wire RTDs. The NI-DAQmx device driver software included with the module gives the flexibility of per channel software-programmable configurations and automatically scales measured data into engineering units.
The signal conditioning circuitry on the NI PXIe-4357 is optimized for PT100 RTDs but can also measure resistors between 0 Ω and 400 Ω.