Description
The product detailed in this specification is the National Instruments PXI-4022 PXI Amplifier Module, denoted by part numbers 194478C-01L / 779614-01. This module falls under the category of PXI Multimeters, designed specifically for enhancing measurement capabilities in diverse applications.
The PXI-4022 model is distinguished by its unique functionality as a 6-Wire, Guard and Current PXI Amplifier Module. It is primarily intended for use with Digital Multimeters, making it a versatile tool for professionals requiring high precision in their measurements.
One of the key features of this module is its Low-EMF, low-leakage, gold plated, solid copper input terminals, which are engineered to provide superior signal integrity and minimize measurement errors. The module is categorized under Measurement Category II, with a signal voltage capacity of ≤ 250V and a surge voltage capability of up to 2,500 V, ensuring robust performance even under demanding conditions.
The PXI-4022 boasts an impressive input impedance of greater than 1010 Ω, coupled with an input bias current of less than 5 pA, highlighting its ability to handle high impedance sources with minimal error. Furthermore, the module provides a maximum output voltage range of ±12 V and a maximum output drive current of ±15 mA, offering ample power for a wide array of applications.
Additionally, the module comes equipped with comprehensive overvoltage protection, including Guard out, Guard In “+”, and Guard In “-“, to safeguard the device against potential damage from unexpected voltage spikes, ensuring long-term reliability and safety during operation.
| Specification | Detail |
|---|---|
| Part Number | 194478C-01L / 779614-01 |
| Category | PXI Multimeters |
| Model | PXI-4022 |
| Description | National Instruments PXI-4022 PXI Amplifier Module |
| Functionality | 6-Wire, Guard and Current PXI Amplifier Module |
| Application | For use with Digital Multimeters |
| Input Terminals | Low-EMF, low-leakage, gold plated, solid copper |
| Measurement Category | II |
| Signal Voltage | ≤ 250V |
| Surge Voltage | Up to 2,500 V |
| Input Impedance | >1010 Ω |
| Input Bias Current | < 5 pA |
| Max Output Voltage Range | ±12 V |
| Max Output Drive Current | ±15 mA |
| Overvoltage Protection | Guard out, Guard In “+”, and Guard In “-“ |



