10Model UT512: OPERATING MANUAL12345678910111213141516Table 4. Meter Front DescriptionLCDScroll ButtonEmergency StopData Clear the Display Backlight ButtonDown ButtonOn/Off ButtonCompare ButtonInsulation Resistance ButtonDC Voltages measurement ButtonTimer Button.AC Voltages measurement ButtonTest ButtonUSB ButtonData Store Button.Data Recall ButtonScroll Button171819202122Up ButtonLINE: High Voltage output input terminal(two plugs red test lead to one alligator clip)High voltage line shielding input terminal(two plugs red test lead to one alligator clip)GUARD: Grounding protection input terminal(one plug black test lead to one alligator clip)EARTH: High resistance measurement inputterminal (one plug green test lead to onealligator clip)Testing leads:Two plugs red test lead to one alligator clip.One plug black test lead to one alligator clip.One plug green test lead to one alligatorclip.