1 Introduction18 Keysight U1190A Series User’s GuideAbout This ManualThe descriptions and instructions in this manual apply to the Keysight U1191A,U1192A, U1193A, and U1194A handheld clamp meters (hereafter referred to asthe clamp meter).The model U1194A appears in all illustrations.Documentation mapThe following manuals and software are available for your clamp meter. For thevery latest version, please visit our website at: http://www.keysight.com/find/hhTechLib.Check the manual revision on the first page of each manual.– User’s Guide. This manual.– Quick Start Guide. Printed copy for outdoor use, included with shipment.– Service Guide. Free download at the Keysight website.Safety notesSafety notes are used throughout this manual (see the Safety Information sectionfor format examples). Familiarize yourself with each of the notes and its meaningbefore operating your clamp meter.More pertinent safety notes for using this product are located under the SafetyConsiderations section.Do not proceed beyond a safety notice until the indicated conditions are fullyunderstood and met.