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The 500 RL^eutilizes GE Analytical Instrument's patented membrane conductometric technology, delivering ultra low-level accuracy and reliability by eliminating false positive and false negative readings associated with other simplified TOC technologies.

Design enhancements allow the 500 RL^e to operate on higher conductivity waters than the PPT while still delivering the same analytical performance, thus lending greater versatility and reliability to the 500 RL^e. Specific attention has been paid to performance on Low DO water systems resolving TOC recovery issues that are problematic for other reagentless TOC analyzers