Skip to main content

Home / Shop / NI 9221

National Instruments NI 9221 C Series voltage input module

1 image: Click to enlarge

National Instruments · CompactDAQ; CompactRIO

NI 9221

The NI 9221 is an eight-channel C Series voltage input module with a ±60 V input range and 12-bit resolution. It supports CompactDAQ and CompactRIO systems, with acquisition rates up to 800 kS/s aggregate.

ManufacturerNational Instruments

ModelNI 9221

Part Number779014-01

Product TypeC Series voltage input module

● Available to Order

Condition: confirmed per unit

Request current pricing and lead time for this model. Our team will confirm the exact equipment configuration and condition.

Fast RFQ

Quote: NI 9221

Free Shippingfull policy linked

30-Day Warrantystandard coverage

30-Day Returnspolicy applies

Technical Supportmodel & compatibility help

Analog inputs8 single-ended channels

Input range±60 V

Resolution12-bit

Maximum sample rate800 kS/s aggregate; chassis-dependent

SamplingNon-simultaneous

SOHO Assistant

Ask about this exact model, a replacement, accessory, driver, rental or repair question.

Ask about specifications, compatibility, availability, rental or repair.

Ask SOHO Assistant

Overview

Product overview

Key product information and technical features.

The NI 9221 provides single-ended voltage acquisition for industrial-level signals, automotive measurements and smaller-cell battery measurements. Its ±60 V input range distinguishes it from lower-voltage C Series input modules.

The module fits CompactDAQ and CompactRIO systems. The catalog-associated part number 779014-01 identifies the screw-terminal version; verify the physical module label before choosing wiring accessories.

Eight single-ended analog inputs for multichannel voltage measurement.
±60 V input range with 12-bit conversion.
Multiplexed acquisition rather than simultaneous channel sampling.

Verified specifications

Technical data

Verified product specifications.

Input channels	8 single-ended
ADC resolution	12 bit
Input range	±60 V
Maximum aggregate sample rate	800; 475 with R Series expansion chassis kS/s
ADC type	Successive approximation register (SAR)
Operating temperature	-40 to 70 °C
Connection for part number 779014-01	Screw terminal

Condition & included items

What the actual unit includes

Confirm condition, included accessories and revision before ordering.

Condition

Confirmed per unit.

Included

Device / accessories confirmed in quote.

Revision

Exact revision confirmed when relevant.

Compatibility

Complete the measurement chain

Review system components and compatibility requirements.

National Instruments

Manufacturer

CompactDAQ / CompactRIO

Supported system platforms

NI 9221

C Series voltage input module

System integration

Complete the chassis hardware and software installation procedures before connecting the module.

Check connector variant and chassis requirements before integration; the aggregate sample rate is not a per-channel rating.

Manuals & software

Technical resources

Manuals, software and technical resources for this model.

NI 9221 DatasheetDatasheet · download.ni.com

NI 9221 Getting Started GuideGetting Started Guide · download.ni.com

NI-9221 Product Page — 779014-01Manufacturer Product Page · ni.com

NI-9221 Dimensional DrawingsDimensional Drawings And CAD Models · ni.com

C Series Screw-Terminal Cable and Accessory GuideTechnical resource

Shipping, warranty & returns

Commercial terms

Review shipping, warranty and return terms before ordering.

Shipping

Free Shipping. Full policy terms apply.

Warranty

30-Day Warranty. Standard coverage applies.

Returns

30-Day Returns. Return policy applies.

Price / Availability

Contact SOHO ProLab for current quote and availability.

Lifecycle services

Source, rent or repair the exact model

Choose pricing, rental or repair for this exact model.

Get Price

Current price, availability and exact unit details.

Rent This Model

Request the exact model or a suitable alternative.

Repair This Model

Send the model and failure symptoms for review.

Explore equipment

Shipping, warranty and returns

FAQ

Product-specific questions

Product-specific answers based on available technical information.

Does the NI 9221 sample all channels simultaneously?

No. The NI 9221 uses non-simultaneous acquisition. Its maximum 800 kS/s rate is aggregate across the module, not 800 kS/s per channel.

Is the NI 9221 a 16-bit, ±10 V module?

No. NI specifies 12-bit resolution and a ±60 V input range for the NI 9221.

Which connector does part number 779014-01 use?

NI identifies 779014-01 as the screw-terminal NI 9221 variant. Confirm the part number on the module before selecting accessories.

Ask SOHO AssistantProduct & compatibility help