FS FOPM-203 Connexions Et Guide De Démarrage Rapide page 7

Operation Instructions
1. Power On/Off and Auto-off Function
Press the button
OFF
switches on. Press the button
backlight switches off.
NOTE: Auto-off function
(1) The instrument will power off automatically if 10 minutes
without any operation.
(2) While in the power-on state, press the button
seconds to turn off the "Auto-off" function.
2. Set Wavelength and Activate Auto-wavelength Recognition (TWIN)
Press the button
can select from six possible wavelengths: 850nm, 1300nm, 1310nm, 1490nm,
1550nm, 1625nm.The instrument defaults to the wavelength which the user set
in the last test. When used with the FOLS-203 and FOLS-204 optical light source,
the wavelength will shift automatically according to the output wavelength of the
light source. Long press the button
recognition and the "TWIN" will show on the LCD. Short press the button
close the "TWIN".
3. Switch Measurement Mode
There are 3 measurement modes you can choose from by pressing the button
repeatedly, dB, dBm and mW.
dBm/
dB/mw
4. Set Reference Level
(1) Press the button
wavelength and a sign of "REF" will be displayed on the screen to indicate that it is
a reference value. The displayed value only lasts 1 second.
(2) Press and hold the button
6
briefly. The instrument powers on, and the backlight
ON
briefly again. The instrument powers off, and
ON
OFF
λ repeatedly until the desired wavelength is displayed. You
to display the stored reference level for the current
REF
over 2 seconds to store the presently
REF
λ to activate the auto-wavelength
for about 2
ON
OFF
λ
to