SERIES 210/220C
A dual or single set point comparator and digital ohmmeter in one package make this unit useful for applications such as production testing and quality assurance. The 210C/220C has system inputs so it can be used as part of an automated test system or as a stand-alone unit. In operation a precise current is passed through the unknown resistance and the voltage dropped across that resistance is then measured by the voltmeter which reads out directly in ohms.

Systems outputs include latchable three state parallel BCD outputs that are TTL compatible and will drive up to 4 TTL loads. The three state outputs allow the output lines to be wired in parallel with other outputs and then called up using the single line enable thereby reducing required wiring. The hold/convert line allows single conversion capability greatly enhancing systems uses.