National Instruments sbRIO-9227 Board-only current input module

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National Instruments · Single-Board RIO

sbRIO-9227

The NI sbRIO-9227, listed by NI as the NI 9227E board-only module, provides four simultaneously sampled current inputs with 24-bit conversion. It supports a 5 Arms safe operating input on all four channels and channel-to-channel isolation.

ManufacturerNational Instruments

ModelsbRIO-9227

Part Number781118-01

Product TypeBoard-only current input module

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Inputs4 simultaneous current input channels

Resolution24-bit delta-sigma ADCs

Safe operating input5 Arms per channel

Internal-timebase samplingUp to 50 kS/s per channel

Form factorBoard-only, non-enclosed

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Overview

Product overview

Key product information and technical features.

NI identifies sbRIO-9227 part number 781118-01 as the NI 9227E board-only current input module in its Single-Board RIO hardware range. This is a non-enclosed member of the board-only C Series module family.

Each input has an independent signal path and ADC for simultaneous acquisition. Analog and digital filtering reject out-of-band signals, while detachable screw-terminal connectors accept grounded or floating current sources within the specified safety limits.

Independent ADC on each channel enables simultaneous four-channel sampling.
Channel-to-channel isolation rated at 250 Vrms continuous, Measurement Category II, with basic insulation.
Combined analog and digital filtering provides out-of-band rejection.
Supports an internal master timebase or an external master timebase for sampling control.

Verified specifications

Technical data

Verified product specifications.

Analog input channels	4 channels
ADC resolution	24 bits
Sampling mode	Simultaneous
Data rate with internal master timebase	1.613 to 50 per channel; discrete supported rates kS/s
Data rate with external master timebase	390.625 to 51200 per channel; subject to timebase and divider constraints S/s
Safe operating input	5 continuous RMS per channel, applied simultaneously to all four channels A
Input coupling	DC
Input impedance	12 between AI+ and AI− mΩ
Channel-to-channel continuous isolation	250; Measurement Category II, basic insulation Vrms
Input connectors	Four detachable 2-terminal screw-terminal connectors

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National Instruments

Manufacturer

Single-Board RIO

Hardware platform

sbRIO-9227 / NI 9227E

Board-only current input module

Install inside a suitable enclosure before use. Do not use for Measurement Category III or IV measurements; confirm host and software support for the exact system.

Manuals & software

Technical resources

Manuals, software and technical resources for this model.

NI 9227E Operating Instructions and SpecificationsManual · download.ni.com

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NI Single-Board RIO HardwareOfficial Hardware Listing · ni.com

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sbRIO-9227 Product CertificationsProduct Certification Resource · ni.com

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NI 9227E wiring, filtering, timebase and safety referenceTechnical resource

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FAQ

Product-specific questions

Product-specific answers based on available technical information.

How are sbRIO-9227 and NI 9227E related?

NI lists sbRIO-9227 part number 781118-01 with the description NI 9227E, a four-channel board-only current input module. The applicable board-only manual is titled NI 9227E Operating Instructions and Specifications.

Is 50 kS/s the absolute maximum sampling rate?

The internal master timebase supports up to 50 kS/s per channel. With an external master timebase, the documented upper limit is 51.2 kS/s per channel, subject to the manual's timebase and divider requirements.

Can the board be operated without an enclosure?

No. NI requires installation inside a suitable enclosure before use because hazardous voltages may be present.