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Attention：
Before connecting the cable connector, make sure that the type of connector is matched. The wrong type of
joint or contaminated joint will not only lead to inaccurate measurement, but also may damage the optical
interface of the instrument. The correct way: clean the end face with absolute alcohol before inserting the
optical fiber connector (jumper), and then connect with the instrument after the alcohol evaporates.
If the port is not connected to the optical cable, the dust cover should be immediately covered to prevent
dust or other dirt from attaching to the optical output port of the instrument.
3.4 Main Menu
After opening the instrument, the main screen is displayed first. When using various functions, first select
functions from the home screen, and then set up or measure them.
Press each function icon to enter the corresponding function, or select a function with the soft key (F1 - F5)
on the right side. The " Menu (1/2)" key in the upper right corner of the home screen can switch the main
menu to the next page or return to the previous page.
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