AEMC 6503 - Product Features

4 MegohmmeterModels6501/6503
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
1.2 DenitionofMeasurementCategories
CAT I: For measurements on circuits not directly connected to
theACsupplywalloutletsuchasprotectedsecondaries,
signallevel,andlimitedenergycircuits.
CAT II: For measurements performed on circuits directly
connectedtotheelectricaldistributionsystem.Examples
are measurements on household appliances or portable
tools.
CAT III: For measurements performed in the building installation
atthedistributionlevelsuchasonhardwiredequipmentin
xedinstallationandcircuitbreakers.
CAT IV: For measurements performed at the primary electrical
supply (<1000V) such as on primary overcurrent protec-
tiondevices,ripplecontrolunits,ormeters.
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