EXFO PPM-350C PON Power Meter - Manual (Page 35)

PPM-350C 29
Verifying the LEDs and LCD
You can verify that the LEDs function normally and that the screen can display all the
elements properly. The unit must be in Pass/Fail or Normal mode to perform the
verification.
To verify the LEDs and LCD:
1. Hold down
and a few seconds. The unit
displays TEST and vertical bars move at the top of
the display, indicating the verification is in progress.
The three LEDs will light up briefly in the following
order: green, yellow, red. Once LEDs are turned off,
all the screen segments will be displayed at the
same time, allowing you to verify them.
Note: Keypad is disabled during the operation.
2. Press any key to return to your previous mode.
Recycling and Disposal (Applies to European
Union Only)
For complete recycling/disposal information as per European Directive WEEE
2002/96/EC, visit the EXFO Web site at
www.exfo.com/recycle .
P/F
mode