Clamp-on Meter Models 501 and 503 154.3 AC Volt MeasurementWARNING: Maximum Input Voltage is 600V. Donot exceed this voltage to avoid electrical shockand/or damage to the instrument.• Turn the rotary range switch to the range.• Insert the red test lead to the red "+" input jack andthe black lead to the black "COM" input jack.• Bring the test probe tips into contact with the testpoints.• If reading is unstable and is hard to read, push theHOLD button and read the measurement.WARNING: Immediately unclamp the meterfrom the conductor under test if overload " "is displayed.®I N S T R U M E N T SMODEL 501CLAMP METERVVAOFF HzHOLDΩH600V CAT II300V CAT III 400A0 10AUTOV1 1 0 0CAT II600V!COM