TriBrer AOF500, User Manual

Page: 12 / 24

10
PON optical power meter - reference setting
PON Optical Power Meter
>2s PERM
VFL
F/P
Mode
ReCall
Save REF/
Enter
Threshold dBm/dB
REF/
Enter
REF/
Enter
Setting reference is usually used before measuring the
real . It can wipe off the attenuation value which is
not counted in the actual loss. Or it can be used in comparing
with the pre-setting standard power.
Button is used to setting or checking out the
reference value. Short press it, the screen will show "REF"
and a pre-setting dBm value. Long press it for two seconds
or more, the device will save the current measured value as
a new reference value. At the same time, "REF" sign will flash
three times on the display screen. After that, it will show
network
the
dB value, and three wavelengths will be set simultaneously.