Anritsu MA24 A Series, Operation Manual, Page: 37 / 88

MA24xxA/B/D, MA2400xA OM PN: 10585-00004 Rev. T 3-11
Chapter 3 — Power Sensor Care 3-6 Connector Cleaning
With continuous use, the outer conductor mating interface will build up
a layer of dirt and metal chips that can severely degrade connector
electrical and mechanical performance. It also tends to increase the
coupling torque which then can damage the mating interface. Cleaning
of connectors is essential for maintaining good electrical performance.
Therefore, connectors should be checked for cleanliness before making
any measurements (or calibration).
Required Cleaning Items
• Low pressure compressed air (solvent free)
• Lint-free cotton swabs
• Isopropyl alcohol (IPA)
• Microscope
Important Cleaning Tips
The following are some important tips on cleaning connectors:
• Use only isopropyl alcohol as a solvent.
• Use only lint-free cotton swabs
• Always use an appropriate size of cotton swab.
• Gently move the cotton swab around the center conductor.
• Never put lateral pressure on the connector center pin.
• Verify that no cotton strands or other foreign material remain in
the connector after cleaning.
• Only dampen the cotton swab. Do NOT saturate it.
• Compressed air may be used to remove foreign particles and to
dry the connector.
• Verify that the center pin has not been bent or damaged.
Cleaning Procedure
1. Remove loose particles on the mating surfaces, threads, and
similar surfaces using low-pressure compressed air.
2. The threads of the connector should be cleaned with a lint-free
cotton swab. When connector threads are clean, the connections
can be hand-tightened to within approximately one-half turn of
the proper torque.