User's Manual

MG500-EU-EN v1.0 7/13
9
BargraphVoltageDisplay
Thebargraphrepresentsthevoltagepresentonthetestleadsasitrises,soaks,anddecays.The
bargraphappearsonthelowerleftofthedisplaywindowduringatest.
AutomaticUnder/OverRangeResistanceDetect
Ifthedisplayshowsthemessage“LOWM‐ohms”,thetestshouldbeinterruptedimmediatelyby
pressingtheTESTbutton.Thismessageindicatesthattheinsulationundertesthasbrokendown
andthemeteristryingtoinjectahighpotentialontoashortcircuit.If‘HIGH’appears,itislikely
thatthetestconfigurationisopen.Checkthetestset‐upandthentestagain.
ElapsedTimer
Thetestdurationisindicatedonthedisplay.Thisisparticularlyusefulindeterminingwhetheran
insulatingmaterialundertestwillbreakdowninagivenamountoftime.
ManualTestSTOP
Tostopatestinprogress,presstheTESTbutton.Thetestwillimmediatelyendandthesystem
willautomaticallydischarge.
AutomaticTestSTOP
When in the default Enersave
TM
 mode, the test automatically stops after approx. 10 seconds.
WhennotintheEnersave
TM
modethetestautomaticallystopsafterapprox.100seconds.
LiveCircuitWarning
Ifthetestleadsareconnectedtoalivecircuit(approx.500V),awarningbeeperwillsoundand
themeterwilldisplay“LiveWarning…CircuitLive…”Inthiscase,correcttheproblemandretest.
AutomaticDischarge
At the end of a test, the meter automatically discharges the high voltage. The automatic
discharge status is reflected on the display. During discharge the beeper will sound  and, when
completelydischarged,theHOLDiconwillappearonthedisplay.