USB-6341

Starting at $1,737.00
Part number(s):
781438-01
782250-01
782251-01

16 AI (16-Bit, 500 kS/s), 2 AO (900 kS/s), 24 DIO USB Multifunction I/O Device

Overview

The USB-6341 offers analog I/O, digital I/O, and four 32-bit counters/timers for PWM, encoder, frequency, event counting, and more. Onboard NI-STC3 timing and synchronization technology delivers advanced timing functionality, including independent analog and digital timing engines and retriggerable measurement tasks. The USB-6341 is well suited for a broad range of applications, from basic data logging to control and test automation. The included NI-DAQmx driver and configuration utility simplify configuration and measurements.

Included Items

  • Device
  • 2 m, locking USB cable (Included only with part numbers 781438-01 and 782251-01)
  • 12 V, 3 A desktop power supply (Included only with part numbers 781438-01 and 782251-01)
  • EMI supression ferrite (Included only with part number 782251-01)
  • 3 mm, round, bi-level, optical light pipe (Included only with part number 781438-01)
  • Safety, Environmental, and Regulatory documentation

USB-6341 Details

Part Numbers (3) Price
781438-01

782250-01

782251-01

NI Lead Time
12-13 weeks
12-13 weeks
12-13 weeks
Number of Bidirectional Digital Channels
24
24
24
Supported Power Input



Maximum Number of Single-Ended Analog Input Channels
16
16
16
Number of Counters/Timers
4
4
4
Maximum Number of Differential Analog Input Channels
8
8
8
Analog Input Absolute Accuracy
2190 μV
2190 μV
2190 μV
Analog Input FIFO Buffer Size
2047 samples
2047 samples
2047 samples
Maximum Sample Rate
500 kS/s
500 kS/s
500 kS/s
Analog Input Isolation



Simultaneous Sampling
No
No
No
Enclosed
Yes
No
Yes
Analog Input Resolution
16 bits
16 bits
16 bits
Bus Connector
USB 2.0
USB 2.0
USB 2.0
Front Connection Type
Screw Terminal(1)
Generic (OEM)(2)
BNC(30)
Number of Analog Output Channels
2
2
2
Maximum Analog Update Rate
900 kS/s
900 kS/s
900 kS/s
Reconfigurable
No
No
No
Number of Analog Input Channels
16
16
16
Maximum Digital Update Rate
1 µs
1 µs
1 µs
Operating Temperature Range
0 °C to 45 °C
0 °C to 45 °C
0 °C to 45 °C
Bus Connection
USB 2.0
USB 2.0
USB 2.0
Current Flow Direction



Digital I/O Isolation



Digital I/O Logic Levels
5 V
5 V
5 V
Maximum Clock Rate
10 MHz
10 MHz
10 MHz
Number of Digital Input Only Channels



Number of Digital Output Only Channels



Number of External Clock Inputs
8
8
8
Relay Type



Signaling Type
Single-Ended
Single-Ended
Single-Ended
Supports Peer To Peer Streaming



Analog Input Voltage Range
-0.2 V to 0.2 V
-1 V to 1 V
-5 V to 5 V
-10 V to 10 V
-0.2 V to 0.2 V
-1 V to 1 V
-5 V to 5 V
-10 V to 10 V
-0.2 V to 0.2 V
-1 V to 1 V
-5 V to 5 V
-10 V to 10 V
Filtering



Number of Current Output Channels



Number of Voltage Output Channels
2
2
2
Analog Output Voltage Range
-10 V to 10 V
-10 V to 10 V
-10 V to 10 V
Output Current Range



Analog Output Isolation



Analog Output Resolution
16 bits
16 bits
16 bits
Analog Input Maximum Absolute Accuracy



Product Description
USB-6341, X Series DAQ (16 AI, 24 DIO, 2 AO)
NI USB-6341, OEM X Series DAQ Device
NI USB-6341, X Series DAQ Device with BNC Termination

USB-6341 Accessories and Software

  • Model (Part Number)
    Description
    Image
    Compatible Part Numbers
    IEC Power Cord (763830-01)
    Power Cord, AC, U.S., 125VAC, 15A

    Accessory
    781438-01, 782250-01, 782251-01
    IEC Power Cord (784686-01)
    Power Cord, 250V, 10A, China

    Accessory
    781438-01, 782250-01, 782251-01
    IEC Power Cord (784685-01)
    Power Cord, 240V, 10A, Korea, Right Angle

    Accessory
    781438-01, 782250-01, 782251-01
    IEC Power Cord (785626-01)
    Power Cord, 250V, 10A, Brazil

    Accessory
    781438-01, 782250-01, 782251-01
    IEC Power Cord (786377-01)
    Power Cord, AC, JAP, 125VAC, 12A

    Accessory
    781438-01, 782250-01, 782251-01
    IEC Power Cord (787642-01)
    Power Cord, AC, Taiwan, 125VAC, 15A

    Accessory
    781438-01, 782250-01, 782251-01
    IEC Power Cord (779424-01)
    Power Cord 2.29M, 100 VAC, Japan

    Accessory
    781438-01, 782250-01, 782251-01
    IEC Power Cord (763067-01)
    Power Cord, 240V, 10A, Euro, Right Angle

    Accessory
    781438-01, 782250-01, 782251-01
    IEC Power Cord (763072-01)
    Power Cord, 250V, 10A, India

    Accessory
    781438-01, 782250-01, 782251-01
  • Product (Part Number)
    Description
    Recommended use cases
    FlexLogger Professional (785748-3501)
    FlexLogger Professional, Subscription License, Download

    Recommended for automated, extensible data logging with NI data acquisition (DAQ) hardware. Automate tests using alarms, triggers, and events, and expand capabilities with plug-ins.

    Key Features

    • Multichassis synchronization—Synchronize multiple NI chassis for accurate, time-aligned measurements across high channel counts.
    • Logging triggers—Start, stop, or segment data recording automatically based on sensor thresholds or other conditions to capture only what matters.
    • Events—Respond to specific occurrences during a test, such as activating equipment when a condition is met (for example, start cooling fans when temperature exceeds a limit).
    • Automation APIs—Control and monitor FlexLogger from external applications (Python, NI LabVIEW, or NI TestStand), enabling integration into larger automated test systems.
    • Calculation channels—Perform real-time math on acquired data (averages, RMS, custom formulas) to track derived measurements as the test runs.
    • Plug-ins—Extend FlexLogger with custom LabVIEW or Python plug-ins to integrate third-party hardware, perform custom analysis, or connect to lab systems.
    • CAN/LIN logging—Acquire and log automotive network data alongside sensor measurements for complete vehicle or subsystem testing.
    LabVIEW+ Suite (788509-35)
    NI LabVIEW+ Suite, Subscription License, Download

    Recommended for engineers building full test and validation systems where modular code development and higher-level frameworks are needed to accelerate development for shorter time to market.

    The LabVIEW+ Suite includes the following products:

    • NI LabVIEW—Provides a graphical programming environment for test system development, enabling connectivity to any instrument and fully integrated user interfaces.
    • NI TestStand—Eliminates the need for time-intensive in-house sequencer development and maintenance by providing an off-the-shelf test management software for validation and production test.
    • NI DIAdem—Saves engineers hundreds of hours of manual data analysis and report creation with automation.
    • NI FlexLogger™ software—Simplifies data acquisition and data logging with interactive measurement setup for NI DAQ hardware.
    • NI InstrumentStudio™ software—Provides a central location for configuration, measurement, and automation.

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