NI-9251

Description

The National Instruments NI-9251 C Series Voltage Input Module, part number 783814-01, is a high-resolution, 2-channel voltage input device featuring mini XLR connectivity, capable of handling an input range of 3 Vrms with a precision of 24-bit resolution. This module is designed to update at a rate of up to 102.4 kS/s, ensuring timely data acquisition.

Offering flexibility for various signal types, the NI-9251 provides software-selectable AC/DC input coupling, and can withstand overvoltage conditions of ±30 V on both channels, safeguarding the module against unexpected voltage spikes. With an input resistance of 2 MΩ when single-ended and 4 MΩ in a differential configuration, along with an input capacitance of 940 pF from the input pin to ground, the module can handle a wide range of signal characteristics.

Engineered for low-noise performance, the module has an idle channel noise level of approximately 8.5 μVrms, making it suitable for applications that demand minimal signal interference. The NI-9251 is also designed to integrate seamlessly with CompactRIO and CompactDAQ systems, ensuring compatibility and ease of use in a broad spectrum of measurement and testing scenarios.

Question 1: What are the overvoltage protection capabilities of the National Instruments NI-9251 C Series Voltage Input Module?
Answer 1: The idle channel noise level of the National Instruments NI-9251 C Series Voltage Input Module is approximately 8.5 μVrms, which contributes to the module’s suitability for applications requiring minimal signal interference by ensuring low-noise performance and thus maintaining the integrity of the signal being measured.

Question 2: What are the input resistance values for single-ended and differential configurations on the National Instruments NI-9251 C Series Voltage Input Module?
Answer 2: The National Instruments NI-9251 C Series Voltage Input Module, part number 783814-01, is a high-resolution, 2-channel device with 24-bit precision, capable of handling an input range of 3 Vrms and updating at a rate of up to 102.4 kS/s. It features mini XLR connectivity, software-selectable AC/DC input coupling, and can withstand overvoltage conditions of ±30 V on both channels. The module has an input resistance

Question 3: What is the idle channel noise level of the National Instruments NI-9251 C Series Voltage Input Module, and how does it contribute to the module’s suitability for applications requiring minimal signal interference?
Answer 3: The National Instruments NI-9251 C Series Voltage Input Module can withstand overvoltage conditions of ±30 V on both channels, offering protection against unexpected voltage spikes.

Question 4: What are the key specifications and compatibility features of the National Instruments NI-9251 C Series Voltage Input Module with part number 783814-01?
Answer 4: The input resistance for the National Instruments NI-9251 C Series Voltage Input Module is 2 MΩ when configured as single-ended and 4 MΩ in a differential configuration.

Question 5: What are the key features and specifications of the National Instruments NI-9251 C Series Voltage Input Module for seamless integration with CompactRIO and CompactDAQ systems?
Answer 5: The National Instruments NI-9251 C Series Voltage Input Module features a high-resolution 2-channel voltage input with mini XLR connectivity, an input range of 3 Vrms, 24-bit resolution, and an update rate of up to 102.4 kS/s. It offers software-selectable AC/DC input coupling, can handle overvoltage conditions of ±30 V, and has an input resistance of 2 MΩ single-ended or 4 MΩ differential with an