User`s guide
Safety Precautions E Cleaning Information
E6000C Mini-OTDR User’s Guide, E0302
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Safety Precautions
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.










