The National Instruments PXI-2720 (Part Number: 781985-20) is a sophisticated 10-channel, 8-bit PXI Programmable Resistor Module designed for precision control in industrial automation applications. This module enables programmatic manipulation of resistance levels across its channels through a network of 89 relays, allowing for simultaneous operation. The PXI-2720 features comprehensive triggering capabilities, as it can both receive and output trigger signals via PXI trigger lines 0 to 7, which enhances its integration into complex test systems. Its integrated PC-based software provides an intuitive user interface that facilitates configuration in units of resistance or temperature.

Each channel can deliver a maximum of 0.25 Watts with excellent specifications of 0.5% resistor accuracy and a temperature coefficient of resistance (TCR) of 100 ppm, offering resolution down to 1 Ω across a resistance range from 1 to 255 Ω. The module can handle voltages of up to 60 VDC and 30 VACrms, maintaining robust performance with a current capacity of 0.3 Amperes per channel. It utilizes high-performance reed relays that feature an operating/release time of 250 μs, with a typical relay life of 1 × 10^8 cycles at low power (<50 mW) and 1 × 10^6 cycles at full power (<250 mW). The module includes a 37-pin D-SUB connector along with 2 x 2 Micro-Fit DMM ports, ensuring versatile connection options for various applications. Physically, the PXI-2720 is a compact 3U, one-slot module with dimensions of 8.5 x 0.8 x 5.1 inches and weighs 9.3 oz, while consuming a maximum of 11 Watts at 5 V. A two to three-year warranty is included with this product, and user and maintenance manuals are available for download. For pricing, please contact a sales representative for a quote.