PCI-6280

Description

The National Instruments PCI-6280 Multifunction DAQ, part number 779108-01, is a versatile data acquisition card for PCI slots that supports SCC and SCXI signal conditioning modules and is equipped with NI-DAQmx driver and configuration utility for ease of use.

This DAQ device features eight differential analog input channels with a high-resolution ADC of 18 bits and a maximum sampling rate of 625 kS/sec. It is designed to handle a wide input voltage range from +10 V to +0.1 V, with the default range being +10 V, and provides robust overvoltage protection up to +25 V and can withstand a maximum input current of +20 mA during overvoltage conditions.

An analog trigger with an accuracy of ± 1% and an input impedance of 10 kΩ enhances measurement precision, while the DC-coupled analog channels ensure signal integrity for various applications.

Additional features include programmable digital I/O channels, which can be configured as inputs or outputs, providing flexibility for interfacing with a range of sensors and actuators.

Question 1: What is the input impedance of the analog trigger on the National Instruments PCI-6280 Multifunction DAQ, and how does it contribute to measurement precision?
Answer 1: The input impedance of the analog trigger on the National Instruments PCI-6280 Multifunction DAQ is 10 kΩ, and it contributes to measurement precision by providing a consistent load to the signal source, minimizing the effect of signal source impedance on the measurement accuracy.

Question 2: What is the maximum overvoltage protection level of the National Instruments PCI-6280 Multifunction DAQ, and how does its analog trigger accuracy contribute to measurement precision?
Answer 2: The maximum overvoltage protection level of the National Instruments PCI-6280 Multifunction DAQ is +25 V, and its analog trigger accuracy of ±1% contributes to measurement precision by ensuring reliable triggering at the set voltage threshold, leading to consistent and accurate data acquisition.

Question 3: Considering the specifications detailed about the National Instruments PCI-6280 Multifunction DAQ, can it be used for applications requiring measurement precision beyond a ±1% accuracy threshold?
Answer 3: The National Instruments PCI-6280 Multifunction DAQ can withstand a maximum input current of +20 mA during overvoltage conditions and offers robust overvoltage protection up to +25 V.

Question 4: What is the maximum input current that the National Instruments PCI-6280 Multifunction DAQ can withstand during overvoltage conditions, and what is the resulting robustness in terms of overvoltage protection in volts?
Answer 4: Given the specifications of the National Instruments PCI-6280 Multifunction DAQ, which include an analog trigger with an accuracy of ±1%, the device would not be suitable for applications requiring measurement precision beyond a ±1% accuracy threshold.

Question 5: What is the accuracy and input impedance of the analog trigger on the National Instruments PCI-6280 Multifunction DAQ, and how does it enhance measurement precision?
Answer 5: The analog trigger on the National Instruments PCI-6280 Multifunction DAQ has an accuracy of ±1% and an input impedance of 10 kΩ, which enhances measurement precision by providing a stable reference point for capturing data, ensuring consistent and reliable triggering for measurements.