Description
The PC-based Multifunction DAQ, model USB-6251, carries the part number 194021C-03 and is manufactured by National Instruments. It is designed to accommodate a variety of connector types, including Screw Terminal, BNC, and Mass Terminal, providing flexibility in connection options.
This device is capable of handling either 8 differential or 16 single-ended analog input channels, offering a versatile solution for various data acquisition needs. The sampling rate reaches up to 1.25 MS/s for a single channel and 1.00 MS/s when multiple channels are utilized, ensuring rapid data capture. The input range is quite broad, allowing for measurements of ±1 V, ±2 V, ±5 V, ±10 V, ±0.1 V, ±0.2 V, ±0.5 V, which accommodates a wide range of signal levels.
The input impedance of the device is impressively high at 10 GΩ, minimizing the load on the circuit being measured. A 30-minute warm-up time is required for the device to stabilize and provide accurate measurements. To maintain its precision, calibration is recommended at least once every 2 years.
Additionally, the USB-6251 features 2 analog output channels with an output update rate of 2.86 MS/s for a single channel and 2.00 MS/s for two channels. The output range of ±5 V and ±10 V offers flexibility for various applications, ensuring this device meets a broad spectrum of user requirements for precision data acquisition and control.
| Specification | Detail |
|---|---|
| Part Number | 194021C-03 |
| Category | PC-based Multifunction DAQ |
| Model | USB-6251 |
| Manufacturer | National Instruments |
| Connector Type | 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 every 2 years |
| Analog Output Channels | 2 |
| Output Update Rate | 2.86 MS/s (1 Channel), 2.00 MS/s (2 Channels) |
| Output Range | ±5 V, ±10 V |
| Output
Question 1: What is the max sampling rate of the USB-6251? Question 2: How many analog input channels does the USB-6251 have? Question 3: What types of connectors does the USB-6251 support? Question 4: What is the input impedance of the USB-6251? Question 5: How often should the USB-6251 be calibrated? |


