JDS Uniphase Wavetek DSAM Series Quick Start Manual page 70

Chapter 2 DSAM Meter Operation
Replacing the Lens
54
To replace a lens
1 Gently insert your fingernail or a small coin into the
thin rectangular notch centered directly below the
display screen and push forward (not down) until the
installed lens begins to bend at the sides in the shape
of a small arc.
CAUTION
To avoid display screen damage, do not use sharp
objects (such as hand tools or writing implements) to
perform this step.
2 With the other hand, gently grab the sides of the lens
and pull the lens tabs out of the holes in the meter
3 Insert the tabs of the replacement lens into the holes
at the top of the display screen and gently bend the
lens to insert the tabs at the bottom of the lens into the
holes at the bottom of the screen.
DSAM Product Family Quick-Start Guide Rev. 001