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Information on Maintenance
Cleaning this Instrument
Cleaning this Instrument
This section describes how to clean the instrument.
WARNING
To protect yourself from electrical shock, be sure to unplug the power cable from the
outlet before cleaning the instrument.
Never clean the internal components of the instrument.
Cleaning an LCD
Use one of the following methods to clean the display surface regularly.
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•
NOTE
Do not use chemicals other than ethanol and isopropyl alcohol to wet the cleaning cloth.
Maintenance of Connectors/Ports
A 3.5-mm connector (7-mm connector when the conversion adapter is connected) is used
for the test head of the 4287A. The N-type connector is used for the front panel. In the RF
band, dirt or damage to connectors significantly affects measurement accuracy. Take
special care about the following.
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Observe the above instruction for the connectors and ports not on the test head or the front
panel.
Procedure to replace center conductor collet of 7-mm connector.
Required tools
330
For normal cleaning, wipe the surface gently with a soft cloth that is dry or wetted with
a small amount of water and wrung tightly.
When stains are difficult to remove, gently wipe the surface with cloth damped with a
small amount of ethanol or isopropyl alcohol.
Always keep the connectors free from stains and dust.
Do not touch the contact surface on the connectors.
Do not plug damaged or scratched connectors into the test ports.
Use compressed air for cleaning connectors. Do not use abrasives under any
circumstance.
Collet removal tool
6-slot precision collet
Agilent part number
5060-0370
85050-20001
Appendix G
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