Using the Probes 1N2750/1/2A User’s Guide 27Instrument Markings and Safety SymbolsSymbol DescriptionSTANDBY and AC symbols. The STANDBY marks the position of the instrument powerline switch. The AC symbol is used to indicate the required nature of the linemodule input power.The CE mark is a registered trademark of the European Community. ISM GRP 1-Adenotes the instrument is an Industrial Scientific and Medical Group 1 Class A prod-uct. ICES/NMB-001 indicates product compliance with the Canadian Interfer-ence-Causing Equipment Standard.The CSA mark is a registered trademark of the Canadian Standards Association.The C-Tick mark is a registered trademark of the Australian Spectrum ManagementAgency.This product complies with the WEEE Directive (2002/96/EC) marking requirements.The affixed label indicates that you must not discard this electrical/electronic prod-uct in domestic household waste. Product Category: With reference to the equipmenttypes in the WEEE Directive Annex I, this product is classed as a “Monitoring and Con-trol instrumentation” product. Do not dispose in domestic household. To returnunwanted products, contact your local Keysight office, or refer to www.keysight.comfor more information.This symbol indicates the Environmental Protection Use Period (EPUP) for the prod-uct’s toxic substances for the China RoHS requirements.Recycle marking.