The Fluke Model 114, Model 115, and Model 117 are battery-powered, true-rms multimeters (hereafter "the Meter") with a 6000-count display and a bar graph. This manual applies to all three models. All figures show the Model 117. These meters meet CAT III IEC 61010-1 2nd Edition standards. The IEC 61010-1 2nd Edition safety standard defines four measurement categories (CAT I to IV) based on the magnitude of danger from transient impulses. CAT III meters are designed to protect against transients in fixed-equipment installations at the distribution level.