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Appendix E. Cleaning Procedure
Cleaning Instrument Housings
Cleaning Instrument Housings
Use a dry and very soft cotton tissue to clean the instrument
housing and the keypad. Do not open the instruments as there is a
danger of electric shock, or electrostatic discharge. Opening the
instrument can cause damage to sensitive components, and in
addition your warranty will be voided.
Cleaning Procedures
If you are unsure about the correct cleaning procedure for your
device or if you are unsure whether the procedure given here is
suitable for your device, check with the manufacturer or sales
distributor, or try the procedure on a dummy or test device first.
Cleaning Cable Connectors
Cleaning connectors is difficult as the core diameter of a
singlemode fiber is only about 9µm. This generally means you
cannot see streaks or scratches on the surface. To be certain of the
condition of the surface of your connector and to check it after
cleaning, you need a microscope.
In the case of scratches, or of dust that has been burnt onto the
surface of the connector, you may have no option but to polish the
connector. This depends on the degree of dirtiness, or the depth of
the scratches. This is a difficult procedure and should only be
performed by skilled personal, and as a last resort as it wears out
your connector.
Never look into the end of an optical cable that is connected to an active
source.
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