NOYAFA NF-906A - Manual (Page 6)

dBm
W
2.4 Description for control panel
(1)Power Key
Used to turn on the power meter, if press it by 2s continuously,
the meter will be turned off.
Auto-off function selection: this key can be used to activate or
shut down the Auto-off function, in addition, if there is no operation
over 15min, the power meter will be off automatically.
(2)Wavelength Key
This key is used to select the desire wavelength value at the range
of: 850nm,1300nm,1310nm,1490nm,1150nm and 1625nm, once
confirmed, the specified value will be on the left upper corner of
screen.
(3)Power conversion key
This button can be used for the conversion between the absolute
and relative measurements of optical power.
dBm
W
REF
Optical
power meter
Your excellent helper in cable test! 04