EXFO EPM-ELS-50 - Manual (Page 15)

EPM-50/ELS-50 11
5. Activate the source at the desired wavelength.
6. Match the source and power meter wavelengths using
.
When the unit detects a modulated signal, it displays the modulation value and
average measured power or loss (see left illustration above). You may notice a
slightly unstable last digit.
7. If necessary, change the displayed units by pressing .
8. Repeat the procedure for other wavelengths.
When power or loss is outside power limits
(see Technical Specifications on page 27)
Actual power
or loss
of fiber under test
Modulation detected