Keysight N4372E, User Manual

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114 Keysight N4372E Lightwave Component Analyzer User’s Guide
7 Maintenance
Cleaning
Safety Precautions
The following Cleaning Instructions contain some general safety
precautions, which must be observed during all phases of cleaning.
Consult your specific optical device manuals or guides for full information
on safety matters.
Please try, whenever possible, to use physically contacting connectors,
and dry connections. Clean the connectors, interfaces, and bushings
carefully after use.
If you are unsure of the correct cleaning procedure for your optical device,
we recommend that you first try cleaning a dummy or test device.
Keysight Technologies assume no liability for the customer’s failure to
comply with these requirements.
WARNING
Please follow the following safety rules:
• Do not remove instrument covers when operating.
• Ensure that the instrument is switched off throughout the cleaning
procedures.
• Use of controls or adjustments or performance of procedures other
than those specified may result in hazardous radiation exposure.
• Make sure that you disable all sources when you are cleaning any
optical interfaces.
• Under no circumstances look into the end of an optical device
attached to optical outputs when the device is operational. The laser
radiation is not visible to the human eye, but it can seriously damage
your eyesight.
• To prevent electrical shock, disconnect the instrument from the mains
before cleaning. Use a dry cloth, or one slightly dampened with water,
to clean the external case parts. Do not attempt to clean internally.
• Do not install parts or perform any unauthorized modification to
optical devices
• Refer servicing only to qualified and authorized personnel.