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10
Maintenance
Battery
FHO1500 Last Mile Explorer Use rechargeable Li-ion battery.
Pay attention to the following :
Keep OTDR dry and clean store at room temperature (15℃～30℃).
Charge it monthly if you don't use it for a long time (more than one month ).
keep Optical port clean by alcohol soaked cotton and recover dust cap after use.
Clean optical port and connector at fixed period .
Clean optical port
The optical connector of the instrument must be kept clean. The optical connector needs to be
cleaned with special alcohol regularly. After the instrument is used up, please cover the dust cap. At
the same time, the dust cap must be kept clean
Follow the principles below before cleaning:
Shut off before cleaning.
Any operations contrary to the instructions may result in dangerous laser injuries.
Disable laser launching before cleaning.
When the instrument is in operation, please always avoid looking directly into optic output. Although
laser radiation is invisible, it may do serious injury to eyesight.
Be cautious of electric shock and make sure AC power is disconnected from the instrument before
cleaning. Always use dry or moist soft cloth to clean the outside of the instrument, and never touch
inside.
Don't proceed any modification on OTDR.
For maintenance, please always operated by qualified worker.
Clean tools
Optical fiber cleaner (for cleaning optical connector)
Optical fiber cleaning stick (for cleaning optical interface)
Optical fiber cleaning cloth (for cleaning optical connector)
Ethanol
Cotton ball
Soft tissue
C
lean pipe brush
Procedure
：
1. Screw down the cap
2. Pull out ceramic core by fingers
3. Clean port carefully
4. Recover ceramic core
5. Screw on the cap
