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Industrial Electronics

Programmable Resistor Ladder Modules Provide Four Independent Resistor Channels

26 April 2017

The EMX-70XX Series of Precision Programmable Resistor Ladder Modules has been added by AMETEK VTI Instruments to its family of PXI Express (PXIe) functional test solutions. These modules can be mixed and matched with other EMX series modules to configure high-density measurement and switching systems. The EMX-70XX Series is designed for such applications as precision simulation of RTDs and other resistance-based sensors; process control; ATE calibration; controlled loading of devices under test (DUTs); and potentiometer simulation.

The modules can provide four independent channels of programmable resistors, with four decades per channel. Each channel is equipped with its own sense leads for feedback.

The EMX-7004 module delivers exceptional stability and accuracy (up to ±0.02 percent of programmed value ±0.5 Ω) for any resistance value from 1 Ω to 16,383 Ω. It can be adjusted in 1 Ω increments, either through the software application programming interface (API) or the dynamic soft front panel provided.

The EMX-7005, EMX-7006 and EMX-7007 modules are optimized for applications requiring higher resistance values, with programmable settings ranging from 163 kΩ to 16,383 MΩ. All four cards offer a 0.5 W power rating and low thermal offset (≤ ±25 μV). IVI-COM, IVI-C and LabVIEW™ drivers for the modules are included. The EMX-7014, EMX-7015 and EMX-7016 are available for general purpose applications with less stringent accuracy requirements.



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