Pickering Interfaces adds programmable resistor modules in PCI/PXI formats

Two families of high density, high accuracy, precision programmable resistor modules have been introduced by Pickering, in modular PXI and PCI formats.

Designed for easy system integration, the 40-298 (PXI) and 50-298 (PCI) cards are each available in 50 standard configurations, offering a choice of resistor channel count, resistance range and resistance setting resolution for a variety of functional test system applications.

The two programmable families have Pickering Interfaces’ reed relays which offer resistance settings up to 10 times faster than other precision resistance modules that use EMR (electro-mechanical relays), claims Pickering. In addition, the 40-298 and 50-298 have a module life that is several orders of magnitude longer than similar products, according to the company.

The new modules target any application that requires the simulation of resistive sensors or any other resistive component, such as engine control unit (ECU) production for the automotive, defence and aerospace markets where the sensors provide information on parameters such as temperature and altitude. Channels can be set as short or open circuit to simulate a wiring or sensor fault. Both module families are available with up to 18 channels in and single slot and resistance values from two Ohm to 22 MOhm, with resistance resolution to 0.125 Ohm, accurate to ±0.2 per cent ± resolution.

Software control is simplified by the use of resistor value calls. The card works out the channel setting closest to the requested value and sets the value. The user can interrogate the card to find the actual resistance setting used. An optional cable that connects to a DMM simplifies the checking of the card’s calibration, adds the company.

The 40-298 and 50-298 modules are flexible, being compatible with a range of chassis including PXI, PXIe Hybrid and Pickering USB/LXI chassis.

Pickering Interfaces offers a standard three-year warranty and guaranteed long-term product support.


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