4 Keysight 85024A User’s and Service GuideAssistanceProduct maintenance agreements and other customer assistance agreements areavailable for Keysight products.For any assistance, contact the nearest Keysight sales or service office. Refer to“Sales and Technical Support” on page 6 for a list of Keysight offices.How to Use This GuideThis guide uses the following conventions:[Front Panel Key] This represents a key physically located on theinstrument.SOFTKEY This represents a “softkey”, a key whose label isdetermined by the instrument firmware.Environmental ConditionsThe 85024A is designed for indoor use and in an area with low condensation. Thetable below shows the general environmental requirements for this instrument.Environmental cond ition RequirementTemperatureOperating condition– 0 °C to 55 °CStorage condition– –40 °C to 70 °CHumidity Protect this product from temperature extremes which cancause internal condensation.AltitudeOperating condition– Up to 4,600 meters (15,000 feet)Storage condition– Up to 15,000 meters (50,000 feet)