Description
The NI PXI-4022 Guard and Current Amplifier for Digital Multimeters is a specialized component designed for use within the PXI Multimeters category. It carries the part number 194478A-01 (779614-01) and is recognized by its model name, PXI-4022. This module is engineered to enhance the capabilities of digital multimeters by providing 6-Wire, Guard, and Current PXI Amplifier Module functionality.
The device is equipped with low-EMF, low-leakage, gold-plated, solid copper input terminals, ensuring high-quality signal transmission and minimal signal loss. It operates within Measurement Category II, suitable for dealing with maximum signal voltages of ≤ 250V and is capable of withstanding surge voltages of up to 2,500 V.
Its input impedance is impressively high, standing at >1010 Ω, and it maintains a low input bias current of < 5 pA. The device’s output voltage range extends to ±12 V max, with the capability to drive currents of ±15 mA max. Additionally, it is equipped with overvoltage protection covering Guard out, Guard In “+”, and Guard In “-“ to safeguard against unexpected power surges.
The inclusion of front panel connectors further enhances its functionality, making the NI PXI-4022 an essential module for professionals requiring highly accurate, reliable measurements and amplification in a PXI multimeter setup.
| Specification | Detail |
|---|---|
| Part Number | 194478A-01 (779614-01) |
| Category | PXI Multimeters |
| Model | PXI-4022 |
| Description | NI PXI-4022 Guard and Current Amplifier for Digital Multimeters |
| Functionality | 6-Wire, Guard and Current PXI Amplifier Module |
| Input Terminals | Low-EMF, low-leakage, gold plated, solid copper |
| Measurement Category | II |
| Maximum Signal Voltage | ≤ 250V |
| Surge Voltage Withstand | Up to 2,500 V |
| Input Impedance | >1010 Ω |
| Input Bias Current | < 5 pA |
| Output Voltage Range | ±12 V max |
| Output Drive Current | ±15 mA max |
| Overvoltage Protection | Guard out, Guard In “+”, and Guard In “-“ |
| Front Panel Connectors |
