5-2 Keysight N5290/1A Installation GuideMaintenance and SupportMaintenance5-MaintenancePhysical MaintenanceClean the cabinet, including the front panel, using a dry or slightly damp clothonly.Electrical MaintenanceRefer to “Keysight Support, Services, and Assistance” on page 4-4.Caring for Waveguide (WG) InterfacesA clean surface at millimeter-wave frequencies is much more important than atlower frequencies because any debris on the waveguide surface can potentiallydistort the measurement results.Caring for WG interfaces is not difficult. Dirt and dust can be removed usingthe following:— Isopropyl alcohol 99.5% 1— Lint-free cloth— Pressurized air (for dust removal)To remove dirt on the waveguide surface, simply put a few drops of isopropylalcohol on a lint-free cloth and gently wipe the surface.To remove dust, simply spray the pressurized air on the waveguide surface.Principles of Connector CareProper connector care and connection techniques are critical for accurate andrepeatable measurements. Refer to Table 5-1 for tips on connector care.Prior to making connections to your analyzer, carefully review the informationabout inspecting, cleaning, and gaging connectors. Refer to the calibration kitdocumentation for detailed connector care information.For course numbers about additional connector care instruction, contactKeysight Technologies. Refer to “Contacting Keysight” on page 4-4.To prevent electrical shock, disconnect the analyzer from the mainssource before cleaning. Use a dry cloth or one slightly dampenedwith water to clean the external case parts. Do not attempt to cleaninternally.1. Use isopropyl alcohol only in a well-ventilated area. Allow all residual alcohol mois-ture to evaporate, and the fumes to dissipate, prior to assembling waveguide inter-faces.
