F i b e r O p t i c S o l u t i o n s P r o v i d e r
10/15
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5. Operation
5
．
1 First, please correctly put the battery in unit.
Press“
”to turn on the unit
，
it will show the absolute or relative attenuation
value interface
（
draft 10
）。
Draft10
When the battery is low or empty “
”
，
please take out and charge it on
time. When the battery is not work, you could also insert the power supply
to power the whole unit. This icon “
” means the external power is under
use. The auto-shut down function is invalid if using the external power.
5
．
2 Connect it to the light source
。
5.2.1 Take out the dust-proof cap and connect the light source
。
5.2.2 Press
“λ”
key to select the wavelength
。
5.2.3 Set2.5dB in draft 10 as the reference value
。
Press“
MENU/ENTE
R”
to enter menu
，
Select“REF” via“▼
”key
，
then
