189247D-01

Description

The 778745-4220 part number refers to an advanced module designed for precise data acquisition and sensor integration, categorized under SCXI & Legacy. Specifically, it is the PXI-4220 model, tailored for robust and efficient data collection and processing tasks.

This module comes with a description of NI PXI-4220 2 ch Bridge Input, indicating its primary function as a bridge input module capable of handling two channels. It is particularly engineered for a sampling rate of 333 kS/s, making it suitable for high-speed data acquisition requirements.

The PXI-4220 is an ideal solution for applications involving strain/bridge input modules for full-, quarter-, and half-bridge sensors. This versatility ensures broad compatibility with a range of sensor types, enhancing its utility in various measurement and monitoring tasks.

Among its notable features, the module offers programmable excitation, bridge configuration, filtering, and amplification per channel, alongside concurrent sample-and-hold capability. Such features ensure precise and customizable sensor integration, crucial for accurate data collection and analysis.

Connectivity is facilitated through a 9-pin, D-SUB connector, ensuring easy and secure connection to other devices or sensors. This module also incorporates a 4-pole Butterworth filter per channel, with up to four software-selectable cutoff frequencies, providing flexibility in filtering unwanted frequencies out of the signal for clearer, more accurate measurements.

Excitation voltage can be adjusted through software on pins 2 and 7, allowing for easy customization to fit specific sensor requirements. The lowpass filter cutoff frequency options include 10 or 100 Hz and 1 kHz or 10 kHz, offering a range of choices to best match the application needs.

For timing and synchronization, the module can utilize an external (PXI trigger bus) or an internal 20 MHz master time base, providing flexibility in integration and operation within measurement systems. Additionally, the amplifier input impedance is greater than Specification Detail Part Number 778745-4220 Category SCXI & Legacy Model PXI-4220 Description NI PXI-4220 2 ch Bridge Input Channels 2-Channel, 333 kS/s Application Strain/Bridge Input Module for full-, quarter-, and half-bridge sensors Features Programmable excitation, bridge configuration, filtering, amplification per channel, concurrent sample-and-hold capability Connector 9-pin, D-SUB connector Filter 4-pole Butterworth filter/channel with up to four software-selectable cutoff frequencies Excitation Voltage Adjustment Through software on pins 2 and 7 Lowpass Filter Cutoff Frequency Options 10 or 100 Hz and 1 kHz or 10 kHz Time Base External (PXI trigger bus) or internal 20 MHz master time base Amplifier Input Impedance >1 G DC Input Bias Current ±20 n