Exfo FVA-600 Instrukcja Użytkownika Pobierz pdf (Strona 15)

FVA-600 9

4 Operating the FVA-600

Variable Attenuator

Selecting Wavelengths

Six wavelengths are already preselected in your unit. The wavelength in use is

displayed in the upper left corner of the screen.

To select a wavelength:

Press to switch between the available values.

You can edit the six preselected wavelengths. See Editing Wavelength on page 12.

You can also return to the default factory wavelengths. See Reverting to the Default

Settings on page 17.

Setting the Attenuation

You can change the attenuation value while you are performing your tests.

To set the attenuation:

Press and hold or to set the attenuation rapidly and according to the

selected step size. See Setting Attenuation Step Size on page 12.

Press and hold and to go to the maximum attenuation, or press and hold

and to go to the minimum attenuation.

Selecting an Operation Mode

The FVA-600 is used in three different operating modes:

³ Absolute mode

³ Relative mode, which allows you to work with a reference attenuation

³ Power mode, which can be used to display the FVA-600 output power after

power edition settings.

To select an operation mode:

Press to switch between the available modes.

Select

Abs/

Rel/

Pwr

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Exfo FVA-600 Instrukcja Użytkownika Strona 15