Keysight NFA X-Series Getting Started and Troubleshooting Guide 17Quick StartInstrument InformationInstrument InformationPower requirementsThe only physical installation of your Keysight signal analyzer is a connectionto a power source. Line voltage does not need to be selected.This analyzer does not contain customer serviceable fuses.AC power cordThe analyzer is equipped with a three-wire power cord, in accordance withinternational safety standards. This cable grounds the analyzer cabinet whenconnected to an appropriate power line outlet. The cable appropriate to theoriginal shipping location is included with the analyzer.The instruments can operate with mains supply voltage fluctuations up to± 10% of the nominal voltage.This is a Safety Class 1 Product (provided with a protective earthingground incorporated in the power cord). The mains plug shall only beinserted in a socket outlet provided with a protective earth contact. Anyinterruption of the protective conductor inside or outside of the product islikely to make the product dangerous. Intentional interruption isprohibited. (IEC 348 clauses 17.3.3c & 17.3.4)Failure to ground the analyzer properly can result in personal injury.Before turning on the analyzer, you must connect its protective earthterminals to the protective conductor of the main power cable. Insert themain power cable plug into a socket outlet that has a protective earthcontact only. DO NOT defeat the earth-grounding protection by using anextension cable, power cable, or autotransformer without a protectiveground conductor.This product is designed for use in Installation Category II and PollutionDegree 2 per IEC 61010 Second Edition and IEC 664 respectively.This instrument has autoranging line voltage input. Be sure the supplyvoltage is within the specified range.The Mains wiring and connectors shall be compatible with the connectorused in the premise electrical system. Failure, to ensure adequate earthgrounding by not using the correct components may cause productdamage, and serious injury.Always use the three-prong AC power cord supplied with this product.Failure to ensure adequate earth grounding by not using this cord cancause product damage.