HBM FS22 SI User Manual page 45

Measuring
To clean an optical interrogator adapter, use an appropri­
ate cotton swab (there are several cleaning swabs in the
market frequently used for telecom) embedded in iso­
propyl alcohol. Insert it in the optical adapter, as in
Fig. 4.8, and rotate the swab always on the same direc­
tion.
Fig. 4.8
FS22 SI 45
A4249-8.0 HBM: public