NI 9238, +/-500 mV, 24-Bit, 50 kS/s/ch, 4-Ch, AI C Series Module (783311-01)

±500 mV, 50 kS/s/ch, 24-Bit, Simultaneous Input, 4-Channel C Series Voltage Input Module
The NI‑9238 performs differential analog input. The measurement range is compatible with many low-voltage sensors such as current shunts and current transducers in high-current applications. When used with higher-voltage C Series Voltage Input Modules, the NI‑9238 can measure power and energy consumption for applications such as appliance test, industrial machine monitoring, power quality analysis, phasor measurements, and harmonic analysis.

Key product

Input Characteristics

Number of channels : 4 analog input channels
ADC resolution : 24 bits
Type of ADC : Delta-Sigma (with analog prefiltering)
Sampling mode : Simultaneous

Internal master timebase (fM)

Frequency : 12.8 MHz
Accuracy : ±100 ppm maximum

Data rate range (fs) using internal master timebase

Minimum : 1.613 kS/s
Maximum : 50 kS/s

Data rate range (fs) using external master timebase

Minimum : 390.625 S/s
Maximum : 51.36 kS/s

Input voltage range (AI+ to AI-)

Nominal = ±0.5 V
Minimum= ±0.496 V
Typical scaling coefficient= 74.506 nV/LSB
Overvoltage protection= ±30 V
Input coupling= DC
Input impedance (AI+ to AI-)= >1 GΩ

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NI 9238, +/-500 mV, 24-Bit, 50 kS/s/ch, 4-Ch, AI C Series Module (783311-01)

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