NOYAFA NF-906A - Manual (Page 8)

(4)At the middle display-area of screen, the value of power will be
displayed, the unit is dBm,W,dB.
(5)At right upper display-area of screen, show reference power
value, and the wavelength value at the left.
(6)The user self-calibration function is just the course of power
conversion and calibration.( calibration of each wavelength)
A. After open the battery cover. Turn the toggle switch to “ON”
position, then it is available to carry out power calibration after
startup.
B. The details of calibration are shown as follows:
C. Open the battery cover, turn the toggle switch to OFF
position for normal operation.
ATTENTION: it is strongly suggested that the fiber power
meter should be measured or calibrated so that the accuracy
and reliability can be guaranteed.
3.2 Wavelength selection
There is a wide range of wavelength including 850nm, 1300nm,
1310nm, 1490nm, 1550nm and 1625 nm for your option, it is
available to carry out switch through the press of key.
REF Key
dBm/W Key
Wavelength Key
ON/OFF Key
If press it every time, a 0.05dB value will be increased for from
current value. The power value calibrated will be shown on LCD
If press it each time, a 0.05dB value will be reduced from current
value . The power value calibrated will be shown on LCD
Used for the selection of wavelength
Shortly press this key to save the value calibrated
Press this key by 2s continuously to close the power meter
Your excellent helper in cable test! 06