EXFO PPM-350C PON Power Meter - Manual (Page 14)

Getting Started with Your PON Power Meter 8
3 Getting Started with Your
PON Power Meter
Turning the Unit On and Off
When you turn the PON Power Meter off, it saves the current settings, which
include:

for the FTTx operation: the mode (Pass/Fail or Normal) and threshold set.

for the OPM operation: the unit, reference values, and wavelength.
Note: Offset nulling values are always returned to factory settings.
To turn the unit on:
Press
. The unit displays EXFO for a few seconds and vertical bars move at the
top of the display, indicating the initialization is in progress. You may use your unit
immediately under normal conditions. The unit uses the settings as they were saved
last time you turned it off.
To turn the unit off:
Hold down
a few seconds. The unit saves the current settings automatically.
I
MPORTANT
If you remove batteries (and the AC adapter is unplugged), the unit
will turn off without saving the above values.
If batteries are low (and the AC adapter is unplugged), the unit will
save the above values and turn off.