Small, portable devices (12.1 by 8.6 by 2.5 cm) Measure quarter-, half-, and full-bridge sensors Built-in voltage and current excitation Thermocouple, RTD, resistance, voltage, and current measurements Plug-and-play connectivity via USB	Bus-powered CJC per channel for a more accurate thermocouple measurement Up to 100 S/s/ch simultaneous inputs 250 Vrms channel-to-channel isolation

Overview

The NI USB-9219 is a four-channel universal C Series module designed for multipurpose testing. With the USB-9219, you can measure several signals from sensors such as strain gages, RTDs, thermocouples, load cells, and other powered sensors. The channels are individually selectable, so you can perform a different measurement type on each of the four channels. Measurement ranges differ for each type of measurement and include up to ±60 V for voltage and ±25 mA for current. Refer to the manual for detailed specifications and ranges. With 250 Vrms of channel-to-channel isolation, the USB-9219 protects not only the surrounding modules, chassis, and connected computer system but also the other channels within the same module. In addition to increased safety, channel-to-channel isolation eliminates problems associated with ground loops.

Requirements and Compatibility

OS Information Windows 2000/XP Windows 7 Windows NT Windows Vista

Driver Information NI-DAQmx

Software Compatibility LabVIEW LabWindows/CVI Measurement Studio

Application and Technology

Recommended Accessories

The USB-9219 uses six-position spring-terminal connectors in each channel for direct signal connectivity. You can purchase additional connectors to reduce signal connection time for multiple test units. In addition to extra connectors, a strain relief kit is available to secure the signal wires.

You can use the NI 9219 module included in the USB-9219 kit in a CompactRIO chassis or an NI CompactDAQ USB chassis for higher-channel-count systems.

Strain relief backshells for signal wire security and high-voltage protection (qty 4): NI 9972
Extra connectors for six-position connector modules (qty 10): NI 9973

Information for OEM Customers

For information on special configurations and pricing, visit ni.com/oem.

Software Recommendations

LabVIEW Professional Development System for Windows	Advanced software tools for large project development Automatic code generation using DAQ Assistant and Instrument I/O Assistant Tight integration with a wide range of hardware Advanced measurement analysis and digital signal processing Open connectivity with DLLs, ActiveX, and .NET objects Capability to build DLLs, executables, and MSI installers	NI LabWindows™/CVI for Windows	Real-time advanced 2D graphs and charts Complete hardware compatibility with IVI, VISA, DAQ, GPIB, and serial Analysis tools for array manipulation, signal processing statistics, and curve fitting Simplified cross-platform communication with network variables Measurement Studio .NET tools (included in LabWindows/CVI Full only) The mark LabWindows is used under a license from Microsoft Corporation.
NI Measurement Studio Professional Edition	Customizable graphs and charts for WPF, Windows Forms, and ASP.NET Web Forms UI design Analysis libraries for array operations, signal generation, windowing, filters, signal processing Hardware integration support with native .NET data acquisition and instrument control libraries Automatic code generation for all NI-DAQmx data acquisition hardware Intelligent and efficient data-logging libraries for streaming measurement data to disk Support for Microsoft Visual Studio .NET 2012/2010/2008

Support and Services

System Assurance Programs

NI system assurance programs are designed to make it even easier for you to own an NI system. These programs include configuration and deployment services for your NI PXI, CompactRIO, or Compact FieldPoint system. The NI Basic System Assurance Program provides a simple integration test and ensures that your system is delivered completely assembled in one box. When you configure your system with the NI Standard System Assurance Program, you can select from available NI system driver sets and application development environments to create customized, reorderable software configurations. Your system arrives fully assembled and tested in one box with your software preinstalled. When you order your system with the standard program, you also receive system-specific documentation including a bill of materials, an integration test report, a recommended maintenance plan, and frequently asked question documents. Finally, the standard program reduces the total cost of owning an NI system by providing three years of warranty coverage and calibration service. Use the online product advisors at ni.com/advisor to find a system assurance program to meet your needs.

Calibration

NI measurement hardware is calibrated to ensure measurement accuracy and verify that the device meets its published specifications. To ensure the ongoing accuracy of your measurement hardware, NI offers basic or detailed recalibration service that provides ongoing ISO 9001 audit compliance and confidence in your measurements. To learn more about NI calibration services or to locate a qualified service center near you, contact your local sales office or visit ni.com/calibration.

Technical Support

Get answers to your technical questions using the following National Instruments resources.

• Support - Visit ni.com/support to access the NI KnowledgeBase, example programs, and tutorials or to contact our applications engineers who are located in NI sales offices around the world and speak the local language.
• Discussion Forums - Visit forums.ni.com for a diverse set of discussion boards on topics you care about.
• Online Community - Visit community.ni.com to find, contribute, or collaborate on customer-contributed technical content with users like you.

Repair

While you may never need your hardware repaired, NI understands that unexpected events may lead to necessary repairs. NI offers repair services performed by highly trained technicians who quickly return your device with the guarantee that it will perform to factory specifications. For more information, visit ni.com/repair.

Training and Certifications

The NI training and certification program delivers the fastest, most certain route to increased proficiency and productivity using NI software and hardware. Training builds the skills to more efficiently develop robust, maintainable applications, while certification validates your knowledge and ability.

• Classroom training in cities worldwide - the most comprehensive hands-on training taught by engineers.
• On-site training at your facility - an excellent option to train multiple employees at the same time.
• Online instructor-led training - lower-cost, remote training if classroom or on-site courses are not possible.
• Course kits - lowest-cost, self-paced training that you can use as reference guides.
• Training memberships and training credits - to buy now and schedule training later.

Visit ni.com/training for more information.

Extended Warranty

NI offers options for extending the standard product warranty to meet the life-cycle requirements of your project. In addition, because NI understands that your requirements may change, the extended warranty is flexible in length and easily renewed. For more information, visit ni.com/warranty.

OEM

NI offers design-in consulting and product integration assistance if you need NI products for OEM applications. For information about special pricing and services for OEM customers, visit ni.com/oem.

Alliance

Our Professional Services Team is comprised of NI applications engineers, NI Consulting Services, and a worldwide National Instruments Alliance Partner program of more than 700 independent consultants and integrators. Services range from start-up assistance to turnkey system integration. Visit ni.com/alliance.

Detailed Specifications

The following specifications are typical for the range 0 to 60 °C unless otherwise noted.

Input Characteristics
Number of channels		4 analog input channels
ADC resolution		24 bits
Type of ADC		Delta-sigma (with analog prefiltering)
Sampling mode		Simultaneous
Type of TEDS supported		IEEE 1451.4 TEDS Class II (Interface)

Conversion time, no channels in TC mode
High Speed		10 ms for all channels
Best 60 Hz Rejection		110 ms for all channels
Best 50 Hz Rejection		130 ms for all channels
High Resolution		500 ms for all channels
Conversion time, one or more channels in TC mode
High Speed		20 ms for all channels
Best 60 Hz Rejection		120 ms for all channels
Best 50 Hz Rejection		140 ms for all channels
High Resolution		510 ms for all channels
Overvoltage protection
Terminals 1 and 2		±30 V
Terminals 3 through 6, across any combination		±60 V
Input impedance
Voltage and Digital In modes (±60 V, ±15 V, ±4 V)		1 MΩ
Current mode		<40 Ω
All other modes		>1 GΩ

Cold-junction compensation sensor accuracy

±1°C typ

Input bias current		<1 nA
INL		±15 ppm
CMRR (ƒin = 60 Hz)		>100 dB
NMRR
Best 60 Hz Rejection		90 dB at 60 Hz
Best 50 Hz Rejection		80 dB at 50 Hz
High Resolution		65 dB at 50 Hz and 60 Hz

Power Requirements
Current consumption from USB		500 mA, max
Suspend mode		2.5 MA, max
Bus Interface
USB specification		USB 2.0 Hi-Speed
Physical Characteristics
Spring-terminal wiring		18 to 28 AWG copper conductor wire with 7 mm (0.28 in.) of insulation stripped from the end
Weight		258 g (9.1 oz)
Safety
If you need to clean the module, wipe it with a dry towel.
Safety Voltages
Connect only voltages that are within these limits.
Isolation
Channel-to-channel
Continuous		250 VAC, Measurement Category II
Withstand		1390 VAC, verified by a 5 s dielectric withstand test
Channel-to-earth ground
Continuous		250 VAC, Measurement Category II
Withstand		2300 VAC, verified by a 5 s dielectric withstand test
Measurement Category II is for measurements performed on circuits directly connected to the electrical distribution system. This category refers to local-level electrical distribution, such as that provided by a standard wall outlet (e.g., 115 V for U.S. or 230 V for Europe). Examples of Measurement Category II are measurements performed on household appliances, portable tools, and similar products.
Safety Standards
This product is designed to meet the requirements of the following standards of safety for electrical equipment for measurement, control, and laboratory use: IEC 61010-1, EN 61010-1 UL 61010-1, CSA 61010-1 Note For UL and other safety certifications, refer to the product label or the Online Product Certification section.
Hazardous Locations
This device is not certified for use in hazardous locations.
Environmental
The USB-9219 is intended for indoor use only but may be used outdoors if installed in a suitable enclosure.
Operating temperature (IEC 60068-2-1, IEC 60068-2-2)		0 to 60 °C
Storage temperature (IEC 60068-2-1, IEC 60068-2-2)		–40 to 85 °C
Ingress protection		IP 40
Operating humidity (IEC 60068-2-56)		10 to 90% RH, noncondensing
Storage humidity (IEC 60068-2-56)		5 to 95% RH, noncondensing
Maximum altitude		2,000 m
Pollution Degree (IEC 60664)		2
Electromagnetic Compatibility
This product is designed to meet the requirements of the following standards of EMC for electrical equipment for measurement, control, and laboratory use: EN 61326 EMC requirements; Industrial Immunity EN 55011 Emissions; Group 1, Class A CE, C-Tick, ICES, and FCC Part 15 Emissions; Class A Note For EMC compliance, operate this device with shielded cables.
CE Compliance
This product meets the essential requirements of applicable European Directives, as amended for CE marking, as follows: 2006/95/EC; Low-Voltage Directive (safety) 2004/108/EC; Electromagnetic Compatibility Directive (EMC) Note For the standards applied to assess the EMC of this product, refer to the Online Product Certification section.
Online Product Certification
Refer to the product Declaration of Conformity (DoC) for additional regulatory compliance information. To obtain product certifications and the DoC for this product, visit ni.com/certification, search by module number or product line, and click the appropriate link in the Certification column.
Environmental Management
National Instruments is committed to designing and manufacturing products in an environmentally responsible manner. NI recognizes that eliminating certain hazardous substances from our products is beneficial not only to the environment but also to NI customers. For additional environmental information, refer to the NI and the Environment Web page at ni.com/environment. This page contains the environmental regulations and directives with which NI complies, as well as other environmental information not included in this document.
Waste Electrical and Electronic Equipment (WEEE)
EU Customers At the end of their life cycle, all products must be sent to a WEEE recycling center. For more information about WEEE recycling centers and National Instruments WEEE initiatives, visit ni.com/environment/weee.htm.
Calibration
You can obtain the calibration certificate for this device at ni.com/calibration.
Calibration interval		1 year

Pinouts/Front Panel Connections

NI USB 9219 Module

Signal Names Terminal Signal Name Signal Description 1 T+ TEDS Data 2 T– TEDS COM 3 EX+/HI1 Positive excitation or input signal 4 HI Positive input signal 5 EX–/LO1 Negative excitation or input signal 6 LO Negative input signal 1 Depending on the mode, terminals 3 and 5 are either the excitation signals or the input signals.