Description
The USB-6251 is a PC-based Multifunction Data Acquisition (DAQ) device manufactured by National Instruments. With its part number being 194929E-03L, this device offers versatility through various connector variations including Screw Terminal, BNC, and Mass Terminal, making it adaptable for numerous applications.
It comprises 8 differential or 16 single-ended analog input channels, providing flexibility in measuring signals. The USB-6251 is capable of a sampling rate of 1.25 Mega Samples per second (MS/s) for a single channel and 1.00 MS/s for multiple channels, ensuring high-speed data acquisition. The input range for this device is quite extensive, covering ±1 V, ±2 V, ±5 V, ±10 V, ±0.1 V, ±0.2 V, and ±0.5 V, which allows for the measurement of signals of varying amplitudes.
Furthermore, the working voltage is rated at ±11 V for both signal and common mode, with an impressive input impedance of 10 GΩ. The warm-up time required for the USB-6251 is 30 minutes, and it requires calibration at least once every two years to maintain accuracy.
In terms of output capabilities, this DAQ device features 2 analog output channels with an update rate of 2.86 MS/s for one channel and 2.00 MS/s per channel when both channels are used. The timing resolution stands at 50 ns, providing precise control over output timing. The output range of ±5 V and ±10 V, along with an output current drive of ±5 mA, supports a wide range of actuators and other devices.
The weight of the USB-6251 varies with the type of terminal used; the Screw Terminal version weighs 10 oz, whereas the Mass Termination model is slightly heavier at 12.8 oz. This difference allows users to choose the model that
| Specification | Detail |
|---|---|
| Part Number | 194929E-03L |
| Category | PC-based Multifunction DAQ |
| Model | USB-6251 |
| Manufacturer | National Instruments |
| Connector Variations | Screw Terminal, BNC, Mass Terminal |
| Analog Input Channels | 8 differential or 16 single-ended |
| Sampling Rate (Single Channel) | 1.25 MS/s |
| Sampling Rate (Multiple Channels) | 1.00 MS/s |
| Input Range | ±1 V, ±2 V, ±5 V, ±10 V, ±0.1 V, ±0.2 V, ±0.5 V |
| Working Voltage | ±11 V (Signal and Common Mode) |
| Input Impedance | 10 GΩ |
| Warm-Up Time | 30 minutes |
| Calibration Period | At least once in 2 years |
| Analog Output Channels | 2 |
| Update Rate (1 Channel) | 2.86 MS/s |
| Update Rate (2 Channels) | 2.00 MS/s per channel |
| Timing Resolution | 50 ns |
| Output Range | ±5 V, ±10 V |
| Output Current Drive | ±5 mA |
| Weight (Screw Terminal) | 10 oz |
| Weight (Mass Termination) | 12.8
Question 1: What is the sampling rate of USB-6251 for a single channel? Question 2: How often does the USB-6251 need calibration? Question 3: What is the part number of the USB-6251? Question 4: What are the output voltage ranges of the USB-6251? Question 5: What input impedance does the USB-6251 have? |
