EXFO EPM-500 Power Meter - Manual (Page 11)

EPM-500/ELS-500/EOT-500 6
3 Getting Started
Turning the Unit On and Off
When you turn off the EPM-500 or the EOT-500, it saves the current wavelength, unit
and reference power.
Note: Offset nulling values are always returned to factory settings.
To turn on the unit:
Press
. The unit displays EXFO for a few seconds. You may use it immediately
under normal conditions.
To turn off the unit:
From normal operating mode, hold down
a few seconds.
Activating Automatic Shutdown (Auto-Off)
When auto-off is activated, the unit will turn off after
10 minutes of idle time.
Auto-off is activated by default when you turn on the
unit.
To deactivate/reactivate auto-off:
When unit is on, press
.
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.
AC adapter
plugged in
Auto-off activated
Batteries in use
(with level)
Measured power/loss (EPM/EOT)
Active source wavelength (ELS)
Source wavelength (EOT)
Fiber number
Power meter wavelength or
reference power (EPM/EOT)
Display
Data storage or recall modes
Modulation values