FS FOPM-201 Guide De Démarrage Rapide page 13

In the time setup menu, the button
move cursor. When the cursor moves to a number, the user can use button ▲ to
increase the value and button ▼ to decrease the value. When the cursor moves to
"Yes" and press the button
means the instrument accepts the time change. During the time setup, the user
can press the button
test menu, then the system time setup remains unchanged.
5. Unit Switch
When the instrument is in normal test mode, press the button
the unit between dBm and dB. Here, the unit dBm is the actual power and unit dB
is a power value relative to reference value. Refer to the next section about
"Reference Value Setup". When the instrument is in the P/F test mode, pressing
the button will automatically exit P/F test mode and switch to normal test
dBm/dB
mode. Its unit will be in dB.
6. Reference Value Setup
In the test menu, press the button
will display "REF" in red (see Fig. 5). This means the instrument chooses the
current light power as the reference value. The test results afterward are the
values after comparing to this reference value. Now, the unit will be in dB and LED
below the LCD display will not light.
12
10-03-03 11: 43: 15
Time Setup
08-10-25
15： 02： 03
Yes
Fig. 4 Time Setup Menu
SAVE
for more than 2 seconds, the " Yes" will flash,
REF/SEL
(less than 2 seconds) to exit time menu and back to the
MENU
for more than 2 seconds, then the LCD
REF/SEL
becomes arrow button - using it to
can switch
dBm/dB