PXI-4220

The National Instruments PXI-4220 is a 2-channel, 16-bit PXI input module for bridge-based strain, load, and pressure measurements. It provides independently programmable bridge configuration and signal conditioning.

ManufacturerNational Instruments

ModelPXI-4220

Part Number778745-4220

Product TypeStrain/bridge input module

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Input channels2

Resolution16-bit

Bridge configurationsQuarter-, half-, and full-bridge

Sensor connectionsOne 9-pin D-SUB per input channel

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Overview

Product overview

Key product information and technical features.

The PXI-4220 connects bridge sensors to a PXI measurement system. Supported sensor types include strain gauges, load cells, and pressure transducers.

Its manual covers sensor wiring, excitation setup, input ranges, filtering, offset compensation, and NI-DAQmx task configuration. Consult these instructions when integrating the module into an existing measurement system.

Bridge configuration, excitation, amplification, and filtering are programmable per channel.
Simultaneous sample-and-hold capability avoids interchannel phase delay.
Programmable shunt and null circuitry supports compensation for measurement gain and offset errors.

Verified specifications

Technical data

Verified product specifications.

Analog input channels	2 channels
ADC resolution	16 bit
Supported bridge configurations	Quarter-bridge, half-bridge, full-bridge
Input connector	9-pin D-SUB per channel

Condition & included items