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NI 789126-01 | NI 9225 Snap-In, Voltage input module, 3 channels, +/- 300 V, 50 kS/s per channel simultaneously, 24 bit

Manufacturer number: 789126-01

789126-01
789126-01
789126-01
789126-01
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Highlights Technical Data Documents / Downloads Description

NI 789126-01 | NI 9225 Snap-In, voltage input module, 3 channels, +/- 300 V, 50 kS/s per channel simultaneously, 24 bit

Product features:

  • Number of channels: 3 analog inputs
  • ADC resolution: 24 bit, delta-sigma with analog pre-filter
  • Sampling mode: Simultaneous
  • Internal master clock: 12.8 MHz, accuracy ±100 ppm
  • Data rates (internal): 1.613 kS/s to 50 kS/s
  • Data rates (external): 390.625 S/s to 51.36 kS/s
  • Measurement range: typ. 300 Vrms (min. 294 Vrms)
  • Scaling coefficient: 50.66 µV/LSB
  • Overvoltage protection: ±450 VDC
  • Input coupling: DC
  • Input impedance: 1 MΩ (AI+ to AI-)
  • Input noise: 2 mVrms
  • Gain drift: ±10 ppm/°C
  • Offset drift: ±970 µV/°C
  • Channel separation (60 Hz): -130 dB
  • Phase linearity: 0.22° max (at 50 kS/s)
  • Alias frequency range: 0.453 - fs
  • CMRR (60 Hz): 104 dB
  • SFDR (1 kHz, -60 dBFS): 128 dBFS
  • THD (1 kHz, -20 dB): -95 dB
  • Power consumption active: max. 495 mW
  • Power consumption sleep mode: 25 µW
  • Thermal power dissipation (active):< max. 760 mW
  • Operating temperature: -40 °C to 70 °C
  • Storage temperature: -40 °C to 85 °C
  • Insulation voltage channel-channel: 600 Vrms continuous, 2300 Vrms test voltage
  • Insulation voltage channel-earth: 300 Vrms continuous, 2300 Vrms test voltage
  • Protection class: IP40
  • Weight: 141 g (screw terminal), 149.5 g (snap-in)

Technical Data

Documents & Downloads

Catalog
pdf | 5.05 MB
Datasheet
pdf | 1.47 MB

Description

789126-01 | NI 9225 Snap-In, Voltage input module, 3 channels, +/- 300 V, 50 kS/s per channel simultaneously, 24 bit

The NI 9225 is a 3-channel, 300 Vrms analog input module with 24-bit resolution and channel-separated isolation. It was specially developed for precise voltage measurements in industrial, scientific and technical applications. Each channel has its own signal path and ADC, enabling simultaneous sampling of all channels. By combining analogue and digital filtering, the module offers high measurement accuracy, reduces noise and minimizes aliasing effects. Thanks to its robust design, wide operating temperature range and high voltage isolation, the NI 9225 is suitable for demanding environments, including industrial equipment, test systems and energy detection.

About the Manufacturer

NI
NI
National Instruments is a global leader in test, measurement, and control solutions. NI's platform-based approach combines modular hardware and software to help customers address complex engineering challenges. Applications range from automotive, electronics, and energy to research/education and industrial systems.
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