4 Megohmmeter Models 6501/65031.1 International Electrical SymbolsThis symbol signifies that the instrument is protected by double orreinforced insulation.This symbol on the instrument indicates a WARNING and that theoperator must refer to the user manual for instructions beforeoperating the instrument. In this manual, the symbol precedinginstructions indicates that if the instructions are not followed, bodilyinjury, installation/sample and product damage may result.Risk of electric shock. The voltage at the parts marked with thissymbol may be dangerous.In conformity with WEEE 2002/96/EC1.2 Definition of Measurement CategoriesCAT I: For measurements on circuits not directly connected tothe AC supply wall outlet such as protected secondaries,signal level, and limited energy circuits.CAT II: For measurements performed on circuits directlyconnected to the electrical distribution system. Examplesare measurements on household appliances or portabletools.CAT III: For measurements performed in the building installationat the distribution level such as on hardwired equipment infixed installation and circuit breakers.CAT IV: For measurements performed at the primary electricalsupply (<1000V) such as on primary overcurrent protec-tion devices, ripple control units, or meters.www.ShopAEMC.comShop for AEMC products online at: 1.888.610.7664