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5
Performing optical power measurements
Screw the appropriate SC, FC or ST interchangeable measuring adapter
onto the measuring connection of the KE8000. Among the measuring ad-
apters there is a built-in 2.5 mm universal measuring adapter ferrule, which
can also be used for measurements without an additional measuring adapter.
Switch on the level meter with the
ON / OFF
button. If the input of the power
meter is covered by the dust cap, ‘L0‘ appears in the display. The power me-
ter is now ready to measure and there is currently no signal level.
Now use the wavelength button (
𝛌
) to select the desired wavelength. Remo-
ve the dust protection cap and connect the power meter to the object to be
measured.
By default, the power Meter displays the dBm value of the optical signal level.
System power level or absolute power level measurement
Connect the KE8000 level meter directly or via an optical measuring cable
to your test object.
For system power level measurements, the absolute power level is measu-
red in dBm. System power levels can, for example, be measured directly
at the transmitter output Tx of an optical transmission system. Likewise, all
types of optical connections can be checked to see whether an optical signal
level is emitted.
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Optical Power Meter
dBm
nm
ON
OFF
REF
dbm
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KE8000
Tx
Rx
