Exfo FVA-600 Manual de usuario Pagina 11

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FVA-600 5
3 Getting Started with Your
FVA-600 Variable
Attenuator
Turning the Unit On and Off
When you turn off the FVA-600, it saves the current attenuation, wavelength,
operation mode, and step size.
To turn on the unit:
Press . The unit displays EXFO for a few seconds.
You may use it immediately under normal conditions unless the unit was not shut
down properly. In this case, the unit will mechanically recalibrate itself.
To turn off the unit:
Hold down a few seconds. The unit saves current settings automatically.
Display Description
IMPORTANT
If you remove batteries (and the AC adapter is unplugged), the unit
will turn off without saving the above values.
If the battery level is low (and the AC adapter is unplugged), the unit
will save the above values and turn off.
Auto-off activated
AC adapter
plugged in
Total attenuation in absolute mode (dB)
Relative attenuation in relative mode (dB)
or power in power mode (dBm)
Selected wavelength
Indicates a calibrated
wavelength in
wavelength edition
mode
Batteries in use
(with level)
Total attenuation in relative or power mode
Step size
Edition value for wavelength, power
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