User`s guide

A-4 Agilent Technologies E5500 Phase Noise Measurement System
Connector Care and Preventive Maintenance
Using, Inspecting, and Cleaning RF Connectors
CAUTION Never exceed the recommended torque when attaching cables.
Connector Wear and
Damage
Look for metal particles from the connector threads and other signs of wear
(such as discoloration or roughness). Visible wear can affect measurement
accuracy and repeatability. Discard or repair any device with a damaged
connector. A bad connector can ruin a good connector on the first mating. A
magnifying glass or jeweler’s loupe is useful during inspection.
SMA Connector
Precautions
Use caution when mating SMA connectors to any precision 2.4 mm or 3.5
mm RF connector. SMA connectors are not precision devices and are often
out of mechanical tolerances, even when new. An out-of-tolerance SMA
connector can ruin a 2.4 mm or 3.5 mm connector on the first mating.Ifin
doubt, gauge the SMA connector before connecting it. The SMA center
conductor must never extend beyond the mating plane.
Cleaning Procedure 1. Blow particulate matter from connectors using an environmentally-safe
aerosol such as Ultrajet. This product is recommended by the United
States Environmental Protection Agency and contains
chlorodifluoromethane. You can order this aerosol from Agilent
Technologies (see Table A-2).
2. Use an alcohol wipe to wipe connector surfaces. Wet a small swab with
alcohol (from the alcohol wipe) and clean the connector with the swab.
3. Allow the alcohol to evaporate off the connector before making
connections
Table A-1 Proper Connector Torque
Connect
or
Torque
cm-kg
Torque
N-cm
Torque
in-lbs
Wrench Part
Number
Type-N 52 508 45 8710-1935
2.4 mm 9.2 90 8 8720-1765
3.5 mm 9.2 90 8 8720-1765
SMA 5.7 56 5 8710-1582
Table A-2 Cleaning Supplies Available from Agilent Technologies
Product Part Number
Ultrajet 9310-6395
Alcohol wipes: 92193N