V420 eight-channel VME Resistance and RTD Simulator Jun 8, 2009

The V420 simulates resistors, RTDs, thermistors, strain gages and load cells, and remains accurate for DC, AC, or pulsed excitation. Users directly program resistances or simulated RTD temperatures. Unlike competitive products that switch strings of resistors with mechanical relays, the V420 is quiet and reliable, and resistance changes are fast and monotonic with no contact bounce or transient switching errors.

The V420 simulates eight 2 or 4-wire resistive sensors. Channels are individually programmable in four ranges, from 5 ohms to 65.5K ohms and operate from microvolts to 24V/50mA. Channels are fully isolated with up to 750V common-mode range with overvoltage protection up to 50V.

The module provides channel calibration check capability and optional built-in self-test.

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