User's Manual

Chapter 5 Optical Tools
Measuring optical power
86 T-BERD/MTS 5800 Getting Started Manual
– The MP-60 meter measures 850, 1300, 1310,1490, and
1550 nm wavelengths
– The MP-80 meter measures 980, 1310,1480, and
1550 nm wavelengths
To measure optical power
1 Connect the Optical Power Meter to a USB connector on
the right side of the instrument.
The USB Power Meter Summary screen appears.
2 Connect the optical patch cord to the power meter.
The measurement appears.
3 To
measure a specific wavelength, select the Wavelength.
4 Use the Display Type drop-down box to specify Power
Meter Summary or Graph.
NOTE: The graph shows the dB result only (not available
for dBm or mW).
5 Use the Display Units drop-down box to specify the
measurement mode.
6 To save results, select the Save Results button.
Setting Description
dBm Absolute mode, displayed as dBm.The default
setting.
mW Absolute mode, displayed as mW.
dB Relative measurement mode. The received
signal is compared to the reference value, and
displays the difference in dB. NOTE: If no ref-
erence value has been stored, 0.00 dBm will
be used as reference value.
SET REF Used in relative measurement mode (dB), to
set the reference value. When selected, the
current absolute power level is stored as new
reference value.