NI PXI-6239 16-Bit, 250 kS/s, 8 Analog Inputs (±20 mA), Bank Isolation

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  • 60 VDC continuous bank isolation, 1,400 Vrms/1,950 VDC channel-to-bus isolation withstand for 5 s
  • 2 analog outputs (0 to 20 mA), 16-bit resolution, up to 500 kS/s
  • 6 digital input and 4 digital output, 24 V sinking
  • 2 counter/timers, 32-bit resolution, 80 MHz; digital triggering
  • NI-MCal calibration technology for increased measurement accuracy
  • NI-DAQmx driver software and NI LabVIEW SignalExpress LE interactive data-logging software
  • Configure Complete PXI System
  • View Data Sheet
  • View Support Resources
The National Instruments PCI-6239 is an isolated M Series multifunction data acquisition (DAQ) board. It combines the safety and performance benefits of isolation with high-performance timing, amplification, and calibration technologies to offer accurate measurements and precise control.

Isolation provides:
1. Safety from transients
2. Noise rejection
3. Reduced ground loops
4. Common-mode voltage rejection

The PCI-6239 is ideal for test, measurement, control, and design applications in environments with high voltages and electrical noise. You can use the PCI-6239 to read from encoders, flow meters, and proximity sensors as well as control valves, pumps, and relays; and connect up to other common 20 mA sensors.

The isolated M Series family of devices incorporates advanced M Series technologies including the NI-STC 2 system controller, NI-PGIA 2 programmable instrumentation amplifier, and NI-MCal calibration technology to increase performance and accuracy. To learn more about M Series technologies, please refer to the data sheet and specifications.

Driver Software
M Series devices work with multiple operating systems using three driver software options including NI-DAQmx, NI-DAQmx Base, and the Measurement Hardware DDK. Browse the information in the Resources tab to learn more about and download driver software. M Series devices are not compatible with the Traditional NI-DAQ (Legacy) driver.

Application Software
With NI LabVIEW, you can create custom DAQ applications with the ease of graphical programming and power of more than 500 analysis functions. LabVIEW Full and Professional Development Systems include LabVIEW SignalExpress for interactive data logging. M Series DAQ devices are compatible with the following versions (or later) of NI application software – LabVIEW 7.x, LabWindows™/CVI 7.x, or Measurement Studio 7.x; LabVIEW SignalExpress 1.x; or LabVIEW with the LabVIEW Real-Time Module 7.1. M Series DAQ devices are also compatible with Visual Studio .NET, C/C++, and Visual Basic 6.

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Specifications Documents

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Specifications Summary

Product Name PXI-6239
Product Family Multifunction Data Acquisition
Form Factor PXI Platform
PXI Bus Type PXI Hybrid Compatible
Part Number 779626-01
Operating System/Target Real-Time , Windows
LabVIEW RT Support Yes
Power Requirement for +3.3V Rail 0 A
Power Requirement for +5V Rail 0.7 A
Power Requirement for +12V Rail 20 mA
Power Requirement for -12V Rail 0 A
Slot Two Module Yes
Module Width 1
MXI Compatible Yes
DAQ Product Family M Series
Measurement Type Quadrature encoder , Digital , Frequency , Current
Isolation Type Bank Isolation
RoHS Compliant Yes
Signal Conditioning 0-20 mA current input
Analog Input
Channels 0 , 8
Single-Ended Channels 0
Differential Channels 8
Resolution 16 bits
Sample Rate 250 kS/s
Maximum Current Range -20 mA - 20 mA
Maximum Current Range Accuracy 18.8 µA
Maximum Current Range Sensitivity 0.24 µA
Minimum Current Range -20 mA - 20 mA
Minimum Current Range Accuracy 18.8 µA
Minimum Current Range Sensitivity 0.24 µA
Number of Ranges 1
Simultaneous Sampling No
On-Board Memory 4095 samples
Analog Output
Channels 2
Resolution 16 bits
Maximum Current Range 0 mA - 20 mA
Maximum Current Range Accuracy 52.3 µA
Minimum Current Range 0 mA - 20 mA
Minimum Current Range Accuracy 52.3 µA
Update Rate 500 kS/s
Digital I/O
Bidirectional Channels 0
Input-Only Channels 6
Output-Only Channels 4
Timing Software
Logic Levels 24 V
Input Current Flow Sinking , Sourcing
Output Current Flow Sinking
Programmable Input Filters Yes
Supports Programmable Power-Up States? Yes
Current Drive Single 350 mA
Current Drive All 400 mA
Watchdog Timer No
Supports Handshaking I/O? No
Supports Pattern I/O? No
Maximum Input Range 0 V - 30 V
Maximum Output Range 0 V - 30 V
Counters 2
Number of DMA Channels 4
Buffered Operations Yes
Debouncing/Glitch Removal Yes
GPS Synchronization No
Maximum Range 0 V - 30 V
Max Source Frequency 80 MHz
Pulse Generation Yes
Resolution 32 bits
Timebase Stability 50 ppm
Logic Levels 24 V
Physical Specifications
Length 16 cm
Width 10 cm
I/O Connector 37-pin D-Sub
Triggering Digital
Synchronization Bus (RTSI) Yes

NI PXI-6239 Packages

To use the NI PXI-6239 , you need all items in the diagram below. Select Option 1 if you already own a PXI System, or Option 2 if you do not already own a chassis, controller, or software.

Roll over the icons below to learn why you need each item in the system

PXI System

1 Connector Block

1 Cable

NI PXI-6239




NI PXI-6239 and Accessories Only
NI PXI-6239 - 779626-01 Qty $ 1,653 each
Required Accessories
Connector Block - Screw Terminal
CB-37F-HVD - 779491-01
Qty $ 187 each
Cable - Shielded
SH37F-37M Cable (1m) - 778621-01
Select length:
Qty $ 33 each
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Optional Accessories

Package Price: $ 1,873

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Additional Product Information

  • View Data Sheet