Keysight Technologies 11645A Series User's And Service Manual

3- 4 11645AUse, Maintenance, and Care of the DevicesCleaning the Mating Plane SurfacesCleaning the Mating Plane Surfaces1. Use Compressed Air or NitrogenClean mating surfaces are essential for ensuring the integrity of the waveguide.WARNING Always use protective eyewear when using compressed air or nitrogen.Use compressed air (or nitrogen) to loosen particles on the mating plane surfaces.You can use any source of clean, dry, low-pressure compressed air or nitrogen that has an effectiveoil-vapor filter and liquid condensation trap placed before the outlet hose.Ground the hose nozzle to prevent electrostatic discharge, and set the air pressure to less than 414 kPa(60 psi) to control the velocity of the air stream. High-velocity streams of compressed air can causeelectrostatic effects when directed into a device. These electrostatic effects can damage the device.Refer to “Electrostatic Discharge” on page 3-2 for additional information.WARNING Keep isopropyl alcohol away from heat, sparks, and flame. Store in a tightly closedcontainer. It is extremely flammable. In case of fire, use alcohol foam, dry chemical, orcarbon dioxide; water may be ineffective.Use isopropyl alcohol with adequate ventilation and avoid contact with eyes, skin, andclothing. It causes skin irritation, may cause eye damage, and is harmful if swallowed orinhaled. It may be harmful if absorbed through the skin. Wash thoroughly after handling.In case of spill, soak up with sand or earth. Flush spill area with water.Dispose of isopropyl alcohol in accordance with all applicable federal, state, and localenvironmental regulations.2. Clean the Mating Plane Surfacesa. Apply a small amount of isopropyl alcohol to a lint-free cleaning swab.b. Clean the mating plane surfaces.c. Let the alcohol evaporate, then blow the surface dry with a gentle stream of clean, low-pressurecompressed air or nitrogen. Always completely dry the surfaces before you use it.3. Inspect the Mating SurfacesInspect the mating surface to make sure that no particles or residue remain. Refer to “Visual Inspection”on page 3-3.