Last Revised: 2012-05-07 16:20:50.0
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| Family | Connector | Analog Inputs | Resolution (bits) | Max Rate (kS/s) | Analog Outputs | Resolution (bits) | Max Rate (kS/s) | Digital I/O | Isolation |
|---|---|---|---|---|---|---|---|---|---|
| USB-6212 | BNC/Screw | 8 BNC (16 SE) | 16 | 400 | 2 | 16 | 250 | 24 DIO | - |
| USB-6216 | BNC/Screw | 8 BNC (16 SE) | 16 | 400 | 2 | 16 | 250 | 24 DIO | 60 V, CAT I |
| USB-6218 | BNC/Screw | 16 BNC (32 SE) | 16 | 250 | 2 | 16 | 250 | 8 DI/8 DO | 60 V, CAT I |
To optimize the use of the Universal Serial Bus (USB) and deliver high-performance data acquisition, National Instruments created several key technologies to push the limits of USB throughput and latency. NI signal streaming combines three innovative hardware- and software-level design elements to enable sustained high-speed and bidirectional data streams over USB. For more information, visit ni.com/usb.
You can use USB M Series multifunction DAQ devices for low-cost test or to complement existing test systems that need additional measurement channels. For higher-channel-count signal conditioning on USB, consider the NI CompactDAQ or SCXI platforms.
For design applications, you can use a wide range of I/O – from 16 differential analog inputs to 32 digital lines – to measure and verify prototype designs. USB M Series devices and NI LabVIEW SignalExpress interactive measurement software deliver benchtop measurements to the PC. With LabVIEW SignalExpress, you can quickly create design verification tests. You can convert your tested and verified LabVIEW SignalExpress projects to LabVIEW applications for immediate M Series DAQ use, and bridge the gap between test, control, and design applications.
Shorten your time to market by integrating world-class National Instruments OEM measurement products in your design. Board-only versions of USB M Series DAQ devices for OEM applications feature competitive quantity pricing and software customization. The NI OEM Elite Program offers free 30-day trial kits for qualified customers. Visit ni.com/oem for more information.
National Instruments measurement services software, built around NI-DAQmx driver software, includes intuitive application programming interfaces, configuration tools, I/O assistants, and other tools designed to reduce system setup, configuration, and development time. National Instruments recommends using the latest version of NI-DAQmx driver software for application development in NI LabVIEW, LabVIEW SignalExpress, LabWindows/CVI, and Measurement Studio software. To obtain the latest version of NI-DAQmx, visit ni.com/support/daq/versions. NI measurement services software speeds up your development with features including the following:
M Series devices are compatible with the following versions (or later) of NI application software – LabVIEW, LabWindows/CVI, or Measurement Studio versions 7.x and LabVIEW SignalExpress 2.x.
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.
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.
Get answers to your technical questions using the following National Instruments resources.
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.
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.
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.
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.
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.
Specifications listed below are typical at 25 °C unless otherwise noted. Refer to the NI USB-621x User Manual for more information about USB-621x devices.
Caution The input/output ports of this device are not protected for electromagnetic interference due to functional reasons. As a result, this device may experience reduced measurement accuracy or other temporary performance degradation when connected cables are routed in an environment with radiated or conducted radio frequency electromagnetic interference.
To ensure that this device functions within specifications in its operational electromagnetic environment and to limit radiated emissions, care should be taken in the selection, design, and installation of measurement probes and cables.
| Analog Input | ||
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Number of channels |
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USB-6210/6211/6212/6215/6216 |
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8 differential or 16 single ended |
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USB-6218 |
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16 differential or 32 single ended |
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ADC resolution |
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16 bits |
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DNL |
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No missing codes guaranteed |
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INL |
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Refer to the AI Absolute Accuracy Tables |
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Sampling rate |
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Maximum |
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USB-6210/6211/6215/6218 |
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250 kS/s single channel, 250 kS/s multichannel (aggregate) |
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USB-6212/6216 |
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400 kS/s single channel, 400 kS/s multichannel (aggregate) |
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Minimum |
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0 S/s |
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Timing accuracy |
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50 ppm of sample rate |
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Timing resolution |
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50 ns |
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Input coupling |
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DC |
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Input range |
±10 V, ±5 V, ±1 V, ±0.2 V |
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Maximum working voltage for analog inputs (signal + common mode) |
±10.4 V of AI GND |
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CMRR (DC to 60 Hz) |
100 dB |
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Input impedance |
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Device on |
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AI+ to AI GND |
>10 GΩ in parallel with 100 pF |
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AI- to AI GND |
>10 GΩ in parallel with 100 pF |
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Device off |
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AI+ to AI GND |
1200 Ω |
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AI- to AI GND |
1200 Ω |
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Input bias current |
±100 pA |
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Crosstalk (at 100 kHz) |
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Adjacent channels |
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-75 dB |
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Non-adjacent channels |
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-90 dB |
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Small signal bandwidth (-3 dB) |
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USB-6210/6211/6215/6218 |
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450 kHz |
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USB-6212/6216 |
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1.5 MHz |
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Input FIFO size |
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4,095 samples |
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Scan list memory |
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4,095 entries |
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Data transfers |
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USB Signal Stream, programmed I/O |
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Overvoltage protection (AI <0..31>, AI SENSE) |
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Device on |
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±30 V for up to two AI pins |
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Device off |
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±20 V for up to two AI pins |
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Input current during overvoltage condition |
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±20 mA max/AI pin |
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Settling Time for Multichannel Measurements |
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Accuracy, full scale step, all ranges |
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USB-6210/6211/6215/6218 |
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±90 ppm of step (±6 LSB) |
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4 μs convert interval |
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±30 ppm of step (±2 LSB) |
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5 μs convert interval |
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±15 ppm of step (±1 LSB) |
7 μs convert interval | |
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USB-6212/6216 |
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±90 ppm of step (±6 LSB) |
2.5 μs convert interval |
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±30 ppm of step (±2 LSB) |
3.5 μs convert interval |
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±15 ppm of step (±1 LSB) |
5.5 μs convert interval |
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| Typical Performance Graphs | |
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Analog Output |
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Number of channels |
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USB-6210 |
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0 |
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USB-6211/6212/6215/6216/6218 |
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2 |
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DAC resolution |
16 bits | |
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DNL |
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±1 LSB |
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Monotonicity |
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16 bit guaranteed |
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Maximum update rate |
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1 channel |
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250 kS/s |
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2 channels |
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250 kS/s per channel |
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Timing accuracy |
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50 ppm of sample rate |
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Timing resolution |
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50 ns |
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Output range |
±10 V | |
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Output coupling |
DC |
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Output impedance |
0.2 Ω |
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Output current drive |
±2 mA | |
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Overdrive protection |
±30 V |
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Overdrive current |
2.4 mA |
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Power-on state |
±20 mV |
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Power-on glitch |
±1 V for 200 ms |
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Output FIFO size |
8,191 samples shared among channels used |
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Data transfers |
USB Signal Stream, programmed I/O |
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AO waveform modes:
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Settling time, full scale step 15 ppm (1 LSB) |
32 μs |
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Slew rate |
5 V/μs |
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Glitch energy |
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Magnitude |
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100 mV |
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Duration |
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2.6 μs |
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Calibration (AI and AO) |
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Recommended warm-up time |
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15 minutes |
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Calibration interval |
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1 year |
AI Absolute Accuracy Table (USB-6210/6211/6215/6218) |
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| Nominal Range | Residual Gain Error (ppm of Reading) |
Gain Tempco (ppm/°C) | Reference Tempco | Residual Offset Error (ppm of Range) |
Offset Tempco (ppm of Range/°C) |
INL Error (ppm of Range) |
Random Noise, σ (μVrms) |
Absolute Accuracy at Full Scale1 (μV) | Sensitivity2 (μV) | |
|
Positive Full Scale |
Negative Full Scale |
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|---|---|---|---|---|---|---|---|---|---|---|
| 10 | -10 | 75 | 7.3 | 5 | 20 | 34 | 76 | 229 | 2,690 | 91.6 |
| 5 | -5 | 85 | 7.3 | 5 | 20 | 36 | 76 | 118 | 1,410 | 47.2 |
| 1 | -1 | 95 | 7.3 | 5 | 25 | 49 | 76 | 26 | 310 | 10.4 |
| 0.2 | - 0.2 | 135 | 7.3 | 5 | 40 | 116 | 76 | 12 | 88 | 4.8 |
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AbsoluteAccuracy = Reading · (GainError) + Range · (OffsetError) + NoiseUncertainty GainError = ResidualAIGainError + GainTempco · (TempChangeFromLastInternalCal) + ReferenceTempco · (TempChangeFromLastExternalCal) OffsetError = ResidualAIOffsetError + OffsetTempco · (TempChangeFromLastInternalCal) + INL_Error
1 Absolute accuracy at full scale on the analog input channels is determined using the following assumptions: TempChangeFromLastExternalCal = 10 °C TempChangeFromLastInternalCal = 1 °C number_of_readings = 100 CoverageFactor = 3 σ For example, on the 10 V range, the absolute accuracy at full scale is as follows: GainError = 75 ppm + 7.3 ppm · 1 + 5 ppm · 10 GainError = 132 ppm OffsetError = 20 ppm + 34 ppm · 1 + 76 ppm OffsetError = 130 ppm
AbsoluteAccuracy = 10 V · (GainError) + 10 V · (OffsetError) + NoiseUncertainty AbsoluteAccuracy = 2,690 μV 2 Sensitivity is the smallest voltage change that can be detected. It is a function of noise. Accuracies listed are valid for up to one year from the device external calibration. |
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AI Absolute Accuracy Table (USB-6212/6216) |
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| Nominal Range | Residual Gain Error (ppm of Reading) |
Gain Tempco (ppm/°C) | Reference Tempco | Residual Offset Error (ppm of Range) |
Offset Tempco (ppm of Range/°C) |
INL Error (ppm of Range) |
Random Noise, σ (μVrms) |
Absolute Accuracy at Full Scale1 (μV) | Sensitivity2 (μV) | |
|
Positive Full Scale |
Negative Full Scale |
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|---|---|---|---|---|---|---|---|---|---|---|
| 10 | -10 | 75 | 7.3 | 5 | 20 | 34 | 76 | 295 | 2,710 | 118.0 |
| 5 | -5 | 85 | 7.3 | 5 | 20 | 36 | 76 | 149 | 1,420 | 59.6 |
| 1 | -1 | 95 | 7.3 | 5 | 25 | 49 | 76 | 32 | 310 | 12.8 |
| 0.2 | - 0.2 | 135 | 7.3 | 5 | 40 | 116 | 76 | 13 | 89 | 5.2 |
|
AbsoluteAccuracy = Reading · (GainError) + Range · (OffsetError) + NoiseUncertainty GainError = ResidualAIGainError + GainTempco · (TempChangeFromLastInternalCal) + ReferenceTempco · (TempChangeFromLastExternalCal) OffsetError = ResidualAIOffsetError + OffsetTempco · (TempChangeFromLastInternalCal) + INL_Error
1 Absolute accuracy at full scale on the analog input channels is determined using the following assumptions: TempChangeFromLastExternalCal = 10 °C TempChangeFromLastInternalCal = 1 °C number_of_readings = 100 CoverageFactor = 3 σ For example, on the 10 V range, the absolute accuracy at full scale is as follows: GainError = 75 ppm + 7.3 ppm · 1 + 5 ppm · 10 GainError = 132 ppm OffsetError = 20 ppm + 34 ppm · 1 + 76 ppm OffsetError = 130 ppm
AbsoluteAccuracy = 10 V · (GainError) + 10 V · (OffsetError) + NoiseUncertainty AbsoluteAccuracy = 2,690 μV 2 Sensitivity is the smallest voltage change that can be detected. It is a function of noise. Accuracies listed are valid for up to one year from the device external calibration. |
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AO Absolute Accuracy Table |
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| Nominal Range | Residual Gain Error (ppm of Reading) |
Gain Tempco (ppm/°C) | Reference Tempco | Residual Offset Error (ppm of Range) |
Offset Tempco (ppm of Range/°C) |
INL Error (ppm of Range) |
Absolute Accuracy at Full Scale1 (μV) | |||
|
Positive Full Scale |
Negative Full Scale |
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|---|---|---|---|---|---|---|---|---|---|---|
| 10 | -10 | 90 | 11 | 5 | 60 | 12 | 3,512 | 118.0 | ||
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1 Absolute Accuracy at full scale numbers is valid immediately following internal calibration and assumes the device is operating within 10 °C of the last external calibration. Accuracies listed are valid for up to one year from the device external calibration. AbsoluteAccuracy = OutputValue · (GainError) + Range · (OffsetError) GainError = ResidualGainError + GainTempco · (TempChangeFromLastInternalCal) + ReferenceTempco · (TempChangeFromLastExternalCal) OffsetError = ResidualOffsetError + AOOffsetTempco · (TempChangeFromLastInternalCal) + INL_Error |
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Digital I/O/PFI |
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Static Characteristics |
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Number of channels |
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Digital input |
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USB-6210/6211/6215 |
4 (PFI <0..3>/P0.<0..3>) |
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USB-6218 |
8 (PFI <0..3>/P0.<0..3>, PFI <8..11>/P0.<4..7>) | |
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Digital output |
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USB-6210/6211/6215 |
4 (PFI <4..7>/P1.<0..3>) | |
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USB-6218 |
8 (PFI <4..7>/P1.<0..3>, PFI <12..15>/P1.<4..7>) |
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Digital input or output |
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USB-6212/6216 Screw Terminal |
32 total, 16 (P0.<0..15>), 16 (PFI <0..7>/P1.<0..7>, PFI <8..15>/P2.<0..7>) |
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USB-6212/6216 Mass Termination/BNC |
24 total, 8 (P0.<0..7>), 16 (PFI <0..7>/P1.<0..7>, PFI <8..15>/P2.<0..7>) |
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Ground reference |
D GND |
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Pull-down resistor |
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USB-6210/6211/6215/6218 |
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47 kΩ ±1% |
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USB-6212/6216 |
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50 kΩ typical, 20 kΩ minimum |
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Input voltage protection1 |
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±20 V on up to 8 pins |
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PFI Functionality |
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USB-6210/6211/6215/6218 |
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PFI <0..3>, PFI <8..11>/Port 0 |
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Functionality |
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Static digital input, timing input |
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Debounce filter settings |
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125 ns, 6.425 μs, 2.56 ms, disable; high and low transitions; selectable per input |
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PFI <4..7>, PFI <12..15>/Port 1 |
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Functionality |
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Static digital output, timing output |
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Timing output sources |
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Many AI, AO, counter timing signals |
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USB-6212/6216 PFI <0..15> |
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Functionality |
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Static digital input, static digital output, timing input, timing output |
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Timing output sources |
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Many AI, AO, counter timing signals |
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Debounce filter settings |
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125 ns, 6.425 μs, 2.56 ms, disable; high and low transitions; selectable per input |
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Maximum Operation Conditions |
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Level |
Min |
Max |
|---|---|---|
| IOL output low current | — | 16 mA |
| IOH output high current | — | -16 mA |
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Digital Input Characteristics (USB-6210/6211/6215/6218) |
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Level |
Min |
Max |
|---|---|---|
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VIL input low voltage VIH input high voltage |
0 V 2 V |
0.8 V 5.25 V |
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IIL input low current (Vin = 0 V) IIH input high current (Vin = 5 V) |
— — |
-10 μA 120 μA |
|
Digital Input Characteristics (USB-6212/6216) |
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Level |
Min |
Max |
|---|---|---|
|
VIL input low voltage VIH input high voltage |
0 V 2.2 V |
0.8 V 5.25 V |
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IIL input low current (Vin = 0 V) IIH input high current (Vin = 5 V) |
— — |
-10 μA 250 μA |
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Positive-going threshold (VT+) |
— |
2.2 V |
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Negative-going threshold (VT-) |
0.8 V |
— |
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Delta VT hysteresis (VT+ - VT-) |
0.2 V |
— |
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Digital Output Characteristics (USB-6210/6211/6215/6218) |
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Parameter |
Voltage Level |
Current Level |
|---|---|---|
|
VOL |
0.6 V |
6 mA |
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VOH |
2.7 V |
-16 mA |
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3.8 V |
-6 mA |
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Digital Output Characteristics (USB-6212/6216) |
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General-Purpose Counter/Timers |
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Number of counter/timers |
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2 |
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Resolution |
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32 bits |
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Counter measurements |
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Edge counting, pulse, semi-period, period, two-edge separation |
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Position measurements |
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X1, X2, X4 quadrature encoding with Channel Z reloading; two-pulse encoding |
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Output applications |
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Pulse, pulse train with dynamic updates, frequency division, equivalent time sampling |
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Internal base clocks |
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80 MHz, 20 MHz, 0.1 MHz |
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External base clock frequency |
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0 MHz to 20 MHz |
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Base clock accuracy |
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50 ppm |
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Inputs |
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Gate, Source, HW_Arm, Aux, A, B, Z, Up_Down |
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Routing options for inputs |
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USB-6210/6211/6215/6218 |
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PFI <0..3>, PFI <8..11>, many internal signals |
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USB-6212/6216 |
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PFI <0..15>, many internal signals |
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FIFO |
|
1,023 samples |
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Data transfers |
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USB Signal Stream, programmed I/O |
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Frequency Generator |
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Number of channels |
|
1 |
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Base clocks |
|
10 MHz, 100 kHz |
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Divisors |
|
1 to 16 |
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Base clock accuracy |
50 ppm |
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Output can be available on any output PFI terminal. |
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External Digital Triggers |
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Source |
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USB-6210/6211/6215/6218 |
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PFI <0..3>, PFI <8..11> |
|
USB-6212/6216 |
|
PFI <0..15> |
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Polarity |
|
Software-selectable for most signals |
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Analog input function |
|
Start Trigger, Reference Trigger, Pause Trigger, Sample Clock, Convert Clock, Sample Clock Timebase |
|
Analog output function |
|
Start Trigger, Pause Trigger, Sample Clock, Sample Clock Timebase |
|
Counter/timer functions |
|
Gate, Source, HW_Arm, Aux, A, B, Z, Up_Down |
|
Bus Interface |
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USB |
|
USB 2.0 Hi-Speed or Full-Speed2 |
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USB Signal Stream (USB) |
|
4, can be used for analog input, analog output, counter/timer 0, counter/timer 1 |
|
Power Limits |
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+5 V terminal as output3 |
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|
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Voltage |
|
4.6 to 5.2 V |
|
Current (internally limited) |
|
50 mA max, shared with digital outputs |
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+5 V terminal as input3 |
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|
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Voltage |
|
4.75 to 5.35 V |
|
Current |
|
350 mA max, self-resetting fus |
Caution Do not exceed 16 mA per DIO pin.
|
Protection |
|
±10 V |
|
Power Requirements |
||
|
Input voltage on USB-621x USB port |
|
4.5 to 5.25 V in configured state |
|
Maximum inrush current |
|
500 mA |
|
No load typical current |
|
320 mA at 4.5 V |
|
Maximum load |
|
|
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Typical current |
|
400 mA at 4.5 V |
|
Suspend current |
|
260 μA, typical |
|
Physical Characteristics |
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Enclosure dimensions (includes connectors) |
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USB-621x Screw Terminal |
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16.9 × 9.4 × 3.1 cm (6.65 × 3.70 × 1.20 in.) |
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USB-621x Mass Termination |
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19.3 × 9.4 × 3.1 cm (7.61 × 3.68 × 1.20 in.) |
|
USB-621x BNC |
23.5 × 11.2 × 6.4 cm (9.25 × 4.40 × 2.50 in.) |
|
|
Weight |
|
|
|
USB-621x Screw Terminal |
|
206 g (7.2 oz) |
|
USB-6212 Mass Termination |
|
227 g (8.0 oz) |
|
USB-6216 Mass Termination |
|
231 g (8.1 oz) |
|
USB-6212/6216/6218 BNC |
950 g (33.5 oz) |
|
|
USB-6210 OEM |
|
73 g (2.5 oz) |
|
USB-6212/6216/6218 OEM |
|
76 g (2.6 oz) |
|
I/O connectors |
|
|
|
USB-6210/6211/6215 |
|
Two 16-position combicon |
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USB-6212/6216/6218 Screw Terminal |
|
Four 16-position combicon |
|
USB-6212/6216 Mass Termination |
|
One 68-pin SCSI |
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USB-6212/6216/6218 BNC |
19 BNCs and 26 screw terminals |
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USB connector |
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Series B receptacle |
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Screw terminal wiring |
|
16 to 28 AWG |
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Torque for screw terminals |
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0.22-0.25 N · m (2.0 -2.2 lb · in.) |
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Environmental |
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Operating temperature |
|
0 to 45 °C |
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Storage temperature |
|
-20 to 70 °C |
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Humidity |
|
10 to 90% RH, noncondensing |
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Maximum altitude |
|
2,000 m |
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Pollution Degree (indoor use only) |
|
2 |
Maximum Working Voltage4 |
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USB-6210/6211/6212 Rated Voltage |
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|
Channel-to-earth ground |
|
11 V, Measurement Category I |
|
Caution Do not use for measurements within Categories II, III, or IV. |
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USB-6215/6216/6218 Rated Voltage |
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Channel-to-earth ground5 |
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Continuous |
|
≤60 VDC, Measurement Category I6 |
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Withstand |
|
≤1000 Vrms, verified by a 5 s dielectric withstand test |
|
Analog channel to AI GND/AO GND |
|
≤11 V, Measurement Category I6 |
|
Digital channel to D GND (in the USB-6215/6216/6218 Maximum Working Voltage figure, Vb - Vc) |
|
≤5.25 V, Measurement Category I6 |
|
Caution This device is rated for Measurement Category I and the voltage across the isolation barrier is limited to no greater than 30 Vrms/60 VDC/42.4 Vpk continuous. Do not use for measurements within Categories II, III, or IV. |
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|
The USB-6215/6216/6218 Maximum Working Voltage figure illustrates the maximum working voltage specifications. |
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| USB-6215/6216/6218 Maximum Working Voltage |
Safety |
||
|
This product is designed to meet the requirements of the following standards of safety for electrical equipment for measurement, control, and laboratory use: |
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Note For UL and other safety certifications, refer to the product label or visit ni.com/certification, search by model number or product line, and click the appropriate link in the Certification column. |
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Electromagnetic Compatibility |
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This product is designed to meet the requirements of the following standards of EMC for electrical equipment for measurement, control, and laboratory use: |
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Note For the standards applied to assess the EMC of this product, refer to the Online Product Certification section. |
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Note For EMC compliance, operate this product according to the documentation. |
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Note For EMC compliance, operate this device with shielded cables. |
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CE Compliance |
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This product meets the essential requirements of applicable European Directives, as amended for CE marking, as follows: |
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Online Product Certification |
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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 model number or product line, and click the appropriate link in the Certification column. |
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Environmental Management |
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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. |
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Waste Electrical and Electronic Equipment (WEEE) |
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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. |
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| 1 Stresses beyond those listed under Input voltage protection may cause permanent damage to the device. | ||
| 2 If you are using a USB M Series device in Full-Speed mode, device performance will be lower and you will not be able to achieve maximum sampling/update rates. | ||
| 3 USB-621x Screw Terminal/BNC devices have a self-resetting fuse that opens when current exceeds this specification. USB-621x Mass Termination devices have a user-replaceable socketed fuse that opens when current exceeds this specification. Refer to the NI USB-621x User Manual for information about fuse replacement. | ||
| 4 Maximum working voltage refers to the signal voltage plus the common-mode voltage. | ||
| 5 In the USB-6215/6216/6218 Maximum Working Voltage figure, |Va – Vd|, |Vb – Vd|, and |Vc – Vd|. | ||
| 6 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. | ||
| 7 In the USB-6215/6216/6218 Maximum Working Voltage figure, |Va – Ve|, |Vb – Ve|, and |Vc – Ve|. | ||
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| USB-6212/6216 BNC Front Panel and Pinout |
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| USB-6218 BNC Front Panel and Pinout |
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