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6-3 Connector Cleaning
Maintenance
6-4
PN: 10410-00327 Rev. D
3659 0.8 mm Cal/Ver Kit & 2300-580-R PVS UG
6-3
Connector Cleaning
With repeated connections and disconnections, the threads and outer conductor mating interface builds up a
layer of dirt and metal chips which can severely degrade connector electrical and mechanical performance.
This debris can also increase the coupling torque required for a good connection which can then damage the
mating interfaces. 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 dry, compressed air (oil free, solvent free), maximum pressure: 40 PSI
•
Lint-free cotton swabs
•
Isopropyl alcohol (IPA), 90 %
•
Microscope Cleaning Procedure
Caution
Use the correct sized cotton swabs that are made specifically for cleaning small areas. Oversized
cotton swabs can put lateral pressure on the center pin and damage it. Inspect after cleaning to be
sure that no cotton strands get caught in the connector.
Caution
Teflon Tuning Washers:
The center conductor on some RF components contains a small teflon
tuning washer located near the point of mating (interface). This washer compensates for minor
impedance discontinuities at the interface. The washer’s location is critical to the RF component’s
performance. Be careful not to disturb it with a cotton swab or compressed air and don't apply
alcohol to it.
Compressed Air:
Do not use compressed air on power sensors. Some power sensors have
components internally located near the connector that can be damaged from excessive air pressure.
Solvents:
Do not use industrial solvents or water to clean the connector. Use 90% Isopropyl Alcohol
(IPA) only. Do not spray alcohol directly onto connector surfaces. Do not saturate the swab with
alcohol. Instead, lightly dampen it by touching the tip onto a bead of alcohol formed at the bottle tip
as shown in
.
Figure 6-4.
Isopropyl Alcohol Only
ISOPROPYL ALCO
HO
L
WATER
IN
D
U
S
TRI
AL
S
O
LV
E
N
TS
U
S
TR
O
LV
A
L
S
A
TE
R