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Requirements and Compatibility  |  Ordering Information  |  Detailed Specifications  |  Pinouts/Front Panel Connections For user manuals and dimensional drawings, visit the product page resources tab on ni.com.

Last Revised: 2012-12-18 16:00:17.0

Combination 8-Channel Voltage, 8-Channel Current Input C Series Module

NI 9207

  • Eight differential voltage inputs (±10 V), eight current inputs (±21.5 mA)
  • High-resolution mode with 50/60 Hz rejection
  • 500 S/s sample rate (high-speed mode)
  • Voltage supply pins for external power routing (2 A/30 V max)
  • -40 to 70 °C
  • 60 VDC CAT I, bank isolation (1,000 Vrms withstand)
  • 24-bit resolution
  • Optional NI 9933 connectivity kit shown in image on right
 

Overview

The NI 9207 combination voltage and current input C Series module has eight channels of ±21.5 mA input and eight channels of ±10 V input with built-in 50/60 Hz rejection for noise rejection. Designed with industrial systems in mind, the NI 9207 combines the two most common inputs to reduce the overall number of modules you need. A system that uses fewer modules has the benefit of leaving slots open for other measurement types or reducing the overall cost and size of the system. The NI 9207 has a standard 37-pin D-Sub connection, for use with available cables and connector blocks, or the NI 9937 D-Sub connector kit. The NI 9937 contains a D-Sub to screw terminal accessory as well as a protective shell. With this kit, you can create a custom cable that plugs directly into the module, eliminating the need for a separate terminal block.

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Requirements and Compatibility

OS Information

  • Real-Time OS

Driver Information

  • NI-RIO

Software Compatibility

  • LabVIEW
  • LabVIEW FPGA Module
  • LabVIEW Real-Time Module

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Comparison Tables

ModuleChannelsSample RateSimultaneousIsolationResolution
NI 92078 current/8 voltage500 S/sNoChannel-ground24-bit
NI 920816 current500 S/sNoChannel-ground24-bit
NI 92194 universal100 S/s/chYesChannel-channel24-bit
NI 92038 current200 kS/sNoChannel-ground16-bit
NI 9205(32 SE/16 DI) voltage250 kS/sNoChannel-ground16-bit
NI 92018 voltage500 kS/sNoChannel-ground12-bit
NI 92154 voltage100 kS/s/chYesChannel-ground16-bit

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Application and Technology

Reduce Noise with 50/60 Hz Rejection/Filtering

Designed to work in noisy environments, the NI 9207 has built-in 50/60 Hz rejection. This style of filter attenuates the most common noise in an industrial environment that is caused by lighting, motors, and power lines.

Voltage and Current Measurement from the Same Module

The NI 9207 was designed to combine the two core measurements of voltage and current. With this module, you can measure up to eight differential voltage signals and up to eight current inputs at the same time.

Voltage Supply Pins for Easier Wire Routing

The NI 9207 has multiple voltage supply (VSUP) pins so you can wire a single power supply into the module and then route the power to the individual sensors through the module I/O pins. It can support up to 2 A of current and up to 30 VDC through the VSUP terminals. In addition to multiple VSUP pins, the module offers several COM pins for an easier wiring experience.

Industrial Ratings for Rugged and Reliable Operation

NI C Series modules have industrial certifications and ratings for operation in harsh environments. Modules are rated for a -40 to 70 °C (-40 to 158 °F) temperature range, 50 g shock, and hazardous locations or potentially explosive environments (Class I, Division 2). The NI 9207 features 60 VDC, CAT I isolation and up to 1,000 Vrms transient withstand. Each module comes with a variety of international safety, electromagnetic compatibility (EMC), and environmental certifications and ratings. For more specific information on the industrial certifications and other specifications, refer to the operating instructions manual.

Note: Not all C Series systems conform to the maximum specifications of the individual modules. Consult the specifications section of the manual for the specific chassis or carrier to determine the maximum operational environment.

C Series Compatibility

The C Series hardware family features more than 50 measurement modules and several chassis and carriers for deployment. With this variety of modules, you can mix and match measurements such as temperature, acceleration, flow, pressure, strain, acoustic, voltage, current, digital, and more to create a custom system. Install the modules in one of several carriers to create a single module USB, Ethernet, or Wi-Fi system, or combine them in chassis such as NI CompactDAQ and CompactRIO to create a mixed-measurement system with synchronized measurements. You can install up to eight modules in a simple, complete NI CompactDAQ USB data acquisition system to synchronize all of the analog output, analog input, and digital I/O from the modules. For a system without a PC, CompactRIO holds up to eight modules and features a built-in processor, RAM, and storage for an embedded data logger or control unit. For higher-speed control, CompactRIO chassis incorporate a field-programmable gate array (FPGA) that you can program with NI LabVIEW software to achieve silicon-speed processing on I/O data from C Series modules. See the C Series Compatibility Chart for information on supported modules and carriers.


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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 LabVIEW FPGA Module

  • Create your own I/O hardware without VHDL coding or board design
  • Graphically configure FPGAs on NI reconfigurable I/O (RIO) hardware targets
  • Define your own control algorithms with loop rates up to 300 MHz
  • Execute multiple tasks simultaneously and deterministically
  • Implement custom timing and triggering logic, digital protocols, and DSP algorithms
  • Incorporate existing HDL code and third-party IP including Xilinx CORE Generator functions

NI LabVIEW Real-Time Module

  • Design deterministic real-time applications with LabVIEW graphical programming
  • Download to dedicated NI or third-party hardware for reliable execution and a wide selection of I/O
  • Take advantage of built-in PID control, signal processing, and analysis functions
  • Automatically take advantage of multicore CPUs or set processor affinity manually
  • Includes real-time operating system (RTOS), development and debugging support, and board support
  • Purchase individually or as part of an NI Developer Suite bundle

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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.


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Detailed Specifications

The following specifications are typical for the range – 40 to 70 °C unless otherwise noted. All voltages are relative to COM unless otherwise noted.
Input Characteristics

Number of channels

  16 analog input channels: 8 voltage and 8 current

ADC resolution

  24 bits

Type of ADC

  Delta-Sigma

Sampling mode

  Scanned

Input range

Voltage channels

Minimum

  ±10.2 V

Typical

  ±10.4 V

Current channels

Minimum

  ±21.5 mA

Typical

  ±22.0 mA

Maximum working voltage for analog inputs (signal voltage + common mode voltage), voltage channels only

  Each channel must remain within ±10.2 V of common

Conversion time (per channel)

High-resolution mode

  52 ms

High-speed mode

  2 ms

Overvoltage protection, channel-to-COM

  ±30 V max on one channel at a time

Vsup pins, current channels only

Current

  2 A max

Voltage

  30 V max

Input impedance

Voltage channels

  >1 GΩ

Current channels

  85 Ω


Accuracy, voltage channels
Measurement Conditions Percent of Reading (Gain Error) Percent of Range 1 (Offset Error)
Calibrated max (– 40 to 70 °C) ±0.52% ±0.04%



Accuracy, current channels
Measurement Conditions Percent of Reading (Gain Error) Percent of Range 2 (Offset Error)
Calibrated max (– 40 to 70 °C) ±0.87% ±0.05%


Input noise

Voltage channels

High-resolution mode

  16 μVrms

High-speed mode

  80 μVrms

Current channels

High-resolution mode

  50 nArms

High-speed mode

  200 nArms

Stability

Voltage channels

Gain drift

  ±21 ppm/°C

Offset drift

  ±14 μV/°C

Current channels

Gain drift

  ±43 ppm/°C

Offset drift

  ±30 nA/°C

CMRR (ƒin = 0 to 60 Hz), voltage channels only

  86 dB

NMRR (High-resolution mode only)

50 Hz

  66 dB

60 Hz

  68 dB

MTBF

  Contact NI for Bellcore MTBF or MIL-HDBK-217F specifications.
Power Requirements

Power consumption from chassis

Active mode

  295 mW max

Sleep mode

  25 μW max

Thermal dissipation (at –40 °C)

Active mode

  0.75 W max

Sleep mode

  0.59 W max
Physical Characteristics

If you need to clean the module, wipe it with a dry towel.

Note For two-dimensional drawings and three-dimensional models of the C Series module and connectors, visit ni.com/dimensions and search by module number.

Weight

  144 g (5.1 oz)
Safety
Safety Voltages
Connect only voltages that are within the following limits.

Channel-to-COM

  ±30 V max on one channel at a time

Isolation

Channel-to-channel

  None

Channel-to-earth ground

Continuous

  60 VDC, Measurement Category I

Withstand

  1,000 Vrms, verified by a 5 s dielectric withstand test
Measurement Category I is for measurements performed on circuits not directly connected to the electrical distribution system referred to as MAINS voltage. MAINS is a hazardous live electrical supply system that powers equipment. This category is for measurements of voltages from specially protected secondary circuits. Such voltage measurements include signal levels, special equipment, limited-energy parts of equipment, circuits powered by regulated low-voltage sources, and electronics.

Caution Do not connect the NI 9207 to signals or use for measurements within Measurement Categories II, III, or IV.

Hazardous Locations

U.S. (UL)

  Class I, Division 2, Groups A, B, C, D, T4; Class I, Zone 2, AEx nA IIC T4

Canada (C-UL)

  Class I, Division 2, Groups A, B, C, D, T4; Class I, Zone 2, Ex nA IIC T4

Europe (DEMKO)

  Ex nA IIC T4
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.

Electromagnetic Compatibility
This product meets the requirements of the following EMC standards for electrical equipment for measurement, control, and laboratory use:
  • EN 61326 (IEC 61326): Class A emissions; Industrial Immunity
  • EN 55011 (CISPR 11): Group 1, Class A emissions
  • AS/NZS CISPR 11: Group 1, Class A emissions
  • FCC 47 CFR Part 15B: Class A emissions
  • ICES-001: Class A emissions

Note For the standards applied to assess the EMC of this product, refer to the Online Product Certification section.

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)
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.
Shock and Vibration
To meet these specifications, you must panel mount the system.

Operating vibration

Random (IEC 60068-2-64)

  5 grms, 10 to 500 Hz

Sinusoidal (IEC 60068-2-6)

  5 g, 10 to 500 Hz

Operating shock (IEC 60068-2-27)

  30 g, 11 ms half sine, 50 g, 3 ms half sine, 18 shocks at 6 orientations
Environmental
National Instruments C Series modules are intended for indoor use only but may be used outdoors if installed in a suitable enclosure. Refer to the manual for the chassis you are using for more information about meeting these specifications.

Operating temperature (IEC 60068-2-1, IEC 60068-2-2)

  – 40 to 70 °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

  2
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 the product life cycle, all products must be sent to a WEEE recycling center. For more information about WEEE recycling centers, National Instruments WEEE initiatives, and compliance with WEEE Directive 2002/96/EC on Waste Electrical and Electronic Equipment, visit ni.com/environment/weee.htm.

Calibration (Analog Input)
You can obtain the calibration certificate and information about calibration services for this device at ni.com/calibration.

Calibration interval

  2 years


1 Range equals 10.4 V
2 Range equals 22.0 mA

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Pinouts/Front Panel Connections

NI 9207 pinout

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