EXFO FVA-3150 Variable Attenuator - Manual (Page 50)

Operating Your Variable Attenuator
44 FVA-3150
Operating the Shutter
Operating the Shutter
The optical shutter is an electro-mechanical device which, when activated,
totally blocks light transmission.
To block light transmission:
Use the Shutter button to turn the shutter on or off. When the shutter is
activated, Shutter On appears in the lower right portion of the display.
C
AUTION
Using the shutter continuously at a rate of one cycle per three
seconds may damage the instrument permanently or seriously
reduce its life cycle.
VARIABLE ATTENUATOR FVA-3150
Offset
ENTER
Abs Up Shutter
Ref

Down Attenuation
Program
Setup
Shutter control
Step
In Monitor Out
Shutter