Description
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The National Instruments USB-6251 is a sophisticated PC-based Multifunction DAQ device that caters to a variety of data acquisition needs. This device is designed with flexibility in mind, offering connector variations such as screw terminal, BNC, and mass terminal to accommodate different setups.
It features 8 differential or 16 single-ended analog input channels, providing versatility for measuring different types of signals. The USB-6251 boasts a remarkable sampling rate of up to 1.25 MS/s for a single channel and 1.00 MS/s for multiple channels, ensuring precise and quick data collection. The input range is quite flexible, with options including ±1 V, ±2 V, ±5 V, ±10 V, ±0.1 V, ±0.2 V, and ±0.5 V, making it suitable for a wide range of applications.
The device has an input impedance of 10 GΩ, ensuring minimal loading on the circuit being measured. It requires a warm-up time of 30 minutes to reach operational stability and is recommended to undergo calibration at least once in 2 years to maintain accuracy.
In terms of output capabilities, the USB-6251 provides 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 of 50 ns allows for precise control over timing-sensitive applications. The output range of ±5 V and ±10 V, paired with the specified output current, supports a broad spectrum of actuation and control tasks.
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| Specification | Detail |
|---|---|
| Manufacturer | National Instruments |
| Model | USB-6251 |
| Category | PC-based Multifunction DAQ |
| Connector Variations | Screw terminal, BNC, Mass terminal |
| Analog Input Channels | 8 differential or 16 single-ended |
| Sampling Rate (Max) | 1.25 MS/s (single channel), 1.00 MS/s (multiple channels) |
| Input Range | ±1 V, ±2 V, ±5 V, ±10 V, ±0.1 V, ±0.2 V, ±0.5 V |
| Input Impedance | 10 GΩ |
| Warm-up Time | 30 minutes |
| Calibration Period | At least once in 2 years |
| Analog Output Channels | 2 |
| Output Update Rate | 2.86 MS/s (1 channel), 2.00 MS/s/channel (2 channels) |
| Timing Resolution | 50 ns |
| Output Range | ±5 V, ±10 V |
| Output Current
Question 1: What type of device is the National Instruments USB-6251? Question 2: How many analog input channels does the USB-6251 have? Question 3: What is the maximum sampling rate for a single channel on the USB-6251? Question 4: What timing resolution does the USB-6251 offer? Question 5: How often should the USB-6251 be calibrated? |
