About Setting The Reference - Fluke DTX-MFM2 User Manual

Connector Adapters and Fiber Adapters
Periodically clean connector adapters and fiber adapters
with a swab and alcohol. Dry with a dry swab before use.
Connector Ends
Wipe the end of the ferrule with a swab or wipe lightly
moistened with alcohol. Dry with a dry swab or wipe.
Always cover unused connectors with dust caps or plugs.
Clean dust plugs periodically with a swab or wipe and
alcohol.

About Setting the Reference

The reference serves as the baseline power level for loss
measurements. Regular referencing helps account for
minor variations in source power and connection
integrity. Also, since the reference is the baseline for
measurements, the losses of the reference test cords and
adapters used during referencing are excluded from test
results.
Turn on the tester and smart remote and let
them sit for 5 minutes before setting the
reference. Allow additional time if the modules
have been stored above or below ambient
temperature.
Note
Essentials for Reliable Fiber Test Results
You should set the reference at these times:
At the beginning of each day using the remote end
setup (Figures 9 through 15) you will use that day.
Anytime you reconnect a reference test cord to the
module's output or other source.
Anytime the tester warns you that the reference is
out of date.
Anytime you see a negative loss measurement. (See
the Technical Reference Handbook for more
information.)
You must set the reference at these times:
Anytime you change the fiber module in the tester
or smart remote.
Anytime you start using a different smart remote.
Anytime you change the Test Method in Setup.
Twenty-four hours after the reference was
previously set.
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