Keysight R, Q, U, V, and W11644A 4-3
Use, Maintenance, and Care of the Devices
Visual Inspection
Visual Inspection
Visual inspection and, if necessary, cleaning should be done every time a
connection is made. Inspect mating surfaces for dirt, dust, foreign particles, or
scratches, which can degrade device performance. A damaged mating surface
can damage any good surface connected to it. If necessary, clean all mating
surfaces.
Magnification is helpful when inspecting mating surfaces, but it is not required
and may actually be misleading. Defects and damage that cannot be seen
without magnification generally have no effect on electrical or mechanical
performance. Magnification is of great use in analyzing the nature and cause of
damage and in cleaning mating surfaces, but it is not required for inspection.
Cleaning the Mating Plane Surfaces
1. Use Compressed Air or Nitrogen
Use compressed air (or nitrogen) to loosen particles on the mating plane
surfaces. Clean air cannot damage a device or leave particles or residues
behind.
You can use any source of clean, dry, low-pressure compressed air or
nitrogen that has an effective oil-vapor filter and liquid condensation trap
placed just 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 cause electrostatic
Always use protective eyewear when using compressed air or
nitrogen.