Cleaning This Instrument; Cleaning An Lcd; Maintenance Of Connectors/Ports - Agilent Technologies E4991A Operation Manual

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 7-mm connector is used for the test head of the E4991A. 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
Collet removal tool
6-slot precision collet
434
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.
Agilent part number
5060-0370
85050-20001
Appendix F