AEMC 5050 - 1 Introduction; International Electrical Symbols

Megohmmeter Models 5050/5060 3
CHAPTER 1
INTRODUCTION
WARNING
Thesesafetywarningsareprovidedtoensurethesafetyofpersonneland
properoperationoftheinstrument.
• Donotattempttoperformanytestswiththeseinstrumentsuntilyouhave
readtheinstructionmanual.
• Safetyistheresponsibilityoftheoperator!
• Testsaretobecarriedoutonlyonnon-energizedcircuits!Checkforlive
circuitsbeforemakingresistancemeasurements(safetycheck).
• Highvoltageispresent,asisthesampleconnectedtoit.Anyone
performingorassistingintestingmustfollowallsafetyprecautionsto
preventelectricalshocktothemselvesandtoothers.
• AEMC
®
considerstheuseofrubberglovestobeanexcellentsafety
practice,eveniftheequipmentisproperlyoperatedandcorrectlygrounded.
• Whentestingsampleswithacapacitivecomponent,makesuretheyhave
beenproperlydischargedandaresafetotouch.Dielectricinsulation
samplesshouldbeshort-circuitedforatleastvetimestheamountoftime
theywereenergized.
• Megohmmetersshouldneverbeusedinanexplosiveenvironment.
• Onlyusetheleadsthataresuppliedwiththemegohmmeter.Iftheyare
defectiveorworn,replacebeforetesting.
• Thisinstrumentcanbeusedoninstallationsratedfor1000V,CategoryIII,
or2500V,CategoryI.
1.1 International Electrical Symbols
This symbol signifies that the instrument is protected by double or reinforced
insulation.
This symbol on the instrument indicates a WARNING and that the operator must
refer to the user manual for instructions before operating the instrument. In this
manual, the symbol preceding instructions indicates that if the instructions are
not followed, bodily injury, installation/sample and product damage may result.
Risk of electric shock. The voltage at the parts marked with this symbol may
be dangerous.
In conformity with WEEE 2002/96/EC
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