EXFO PPM-350C PON Power Meter - Manual (Page 32)

Maintenance 26
5. Repeat steps 3 to 4 with a dry cleaning tip.
Note: Make sure you don’t touch the soft end of the cleaning tip.
6. Clean the ferrule in the connector port as follows:
6a. Deposit one drop of isopropyl alcohol on a lint-free wiping cloth.
6b. Gently wipe the connector and ferrule.
6c. With a dry lint-free wiping cloth, gently wipe the same surfaces to ensure
that the connector and ferrule are perfectly dry.
6d. Verify connector surface with a portable fiber-optic microscope (for
example, EXFO’s FOMS) or fiber inspection probe (for example, EXFO’s
FIP).
7. Put the EUI back onto the instrument (push and turn clockwise).
8. Throw out cleaning tips and wiping cloths after one use.
I
MPORTANT
Since isopropyl alcohol is not absolutely pure, it may leave residues
if used abundantly or left to evaporate (about 10 seconds).
Avoid contact between the tip of the bottle and the wiping cloth,
dry the surface quickly, and use a bottle that distributes only a drop
of alcohol at a time.
W
ARNING
Verifying the surface of the connector WHILE THE UNIT IS ACTIVE
WILL result in permanent eye damage.