Fluke MultiFiber Pro User Manual page 26

MultiFiber Pro Optical Power Meter and Fiber Test Kits
Users Manual
4 On the meter, press
5 If necessary, press CHANNEL to see the power
measurement for each channel.
If a power level is lower than -27.5 dBm (1.78 µW) or if
and show, look for these problems:
• There is a bad connection, a dirty connector, or a
damaged fiber or connector. Clean and inspect all
connectors, then do the reference procedure again.
• An unpinned connector is used where a pinned
connector is necessary.
• The source is in 2 kHz mode. Turn off 2 kHz mode,
then do the reference procedure again. See page 13.
• The power measurement on a channel is different
from the measurement on an adjacent channel by
3 dB or more. This usually shows that a connection is
bad, a connector is dirty, or fiber or connector on the
patch cord is bad. Clean and inspect all connectors,
then do the reference procedure again.
20
to make SET REF show . 6 To save the reference measurements, press
The meter saves the measurements and the display
briefly shows , OK and REF. Then the meter goes
into loss measurement mode.
If the display shows
given in step 5.
W
If you disconnect the test reference cord 1 from
the source after you set the reference, you must
set the reference again to make sure the loss
measurements are reliable.
SAVE.
and , look for the problems
Caution